SRM

NIST Standard Reference Materials®

Technical Catalog

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Phone: (301) 975-2200

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NIST SP 260-176

January 2013

Forensics Environmental

Industrial Materials Food & Agriculture

Radioactivity

Clinical Industrial Hygiene

High Purity Materials

Physical Properties

Industrial Materials

NIST SP 260-176

Standard

Reference

Materials® 

Catalog

January 2013

Editors: Regina R. Montgomery and 

Joan C. Sauerwein

Office of Reference Materials

National Institute of Standards and Technology

Gaithersburg, MD 20899-2320

Robert L. Watters, Jr., Director

U.S. Department of Commerce

Rebecca Blank, Acting Secretary

National Institute of Standards and Technology

Patrick D. Gallagher, Under Secretary of Commerce 

for Standards and Technology and Director

Please visit our website 

www.nist.gov/srm
www.nist.gov/srm | Phone: 301.975.2200 | Fax: 301.948.3730 | Email: srminfo@nist.gov

NIST Standard Reference Materials® (SRMs) are used by industry, government, and 

academia to ensure the highest quality measurements. This catalog lists over 1200 

individual reference materials produced and sold by NIST, each with carefully 

assigned values for chemical composition and physical properties.

 SRMs find use in calibrating instruments and in assuring the long-term integrity of quality 

assurance programs. They are also key mechanisms for verifying important measurement 

results and in developing new measurement methods. SRMs provide users with tools to assist in 

establishing traceability of measurement results to NIST. Each SRM comes carefully packaged with 

documentation containing assigned values with stated uncertainties and a material safety data sheet, 

if applicable. Details on use, stability, and NIST analytical methods are also included. 

For further information and prices, contact us at: 

Telephone: (301) 975-2200 

Fax: (301) 948-3730 

E-mail: srminfo@nist.gov 

www.nist.gov/srm 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials 

to help customers select the best SRM for their needs. For specific values and uncertainties, the 

certificate is the only official source. 

The data given in this catalog is constantly being revised. For the most up-to-date information, 

please consult our website at http://www.nist.gov/srm. 

The following is the legend to the values in our tables: 

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

Certain commercial entities, equipment, or materials 

may be identified in this document in order to 

describe an experimental procedure or concept 

adequately. Such identification is not intended to 

imply recommendation or endorsement by the 

National Institute of Standards and Technology, 

nor is it intended to imply that the entities, materials, 

or equipment are necessarily the best available for 

the purpose. 

National Institute of Standards and Technology 

Special Publication 260-176 

Supersedes NIST SP 260, 2012 

234 pages (January 2013)

CODEN: NSPUE2

U.S. GOVERNMENT PRINTING OFFICE

WASHINGTON: 2013

For sale by the Superintendent of Documents, 

U.S. Government Printing Office

Internet: bookstore.gpo.gov 

Phone: (202) 512-1800 

Fax: (202) 512-2250

Mail: Stop SSOP, Washington, DC 20402-0001
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i

Table of Contents

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Standard Reference Materials 

for Chemical Composition

101. Ferrous Metals.................................................................................. 1

101.1 - Plain Carbon Steels (chip form) ............................................... 2

101.2 - Low Alloy Steels (chip form) .................................................... 3

101.3 - Special Low Alloy Steels (chip and pin forms) .......................4-5

101.4 - High Alloy Steels (chip form).................................................... 6

101.5 - Gases in Ferrous Metals (rod form) ......................................... 7

101.6 - Stainless Steels (chip form)..................................................... 8

101.7 - Tool Steels (chip form) [150-g units] ....................................... 9

101.8 - Low Alloy Steels (disk and rod forms) ...............................10-13

101.9 - High Temperature Alloys (chip and disk forms)........................ 14

101.10 - Stainless Steels (disk form) ...........................................15-16

101.11 - Specialty Steels (disk form) ................................................ 17

101.12 - Steelmaking Alloys (powder form) ....................................... 18

101.13 - Cast Irons (chip form) ........................................................ 19

101.14 - Cast Steels, White Cast Irons, and Ductile Irons (disk form) .. 20

102. NonFerrous Metals ......................................................................... 21

102.1 - Aluminum Base Alloys (chip and disk forms)......................22-23

102.2 - Cobalt Base Alloys (chip and disk forms) ............................... 24

102.3 - Copper Base Alloys (chip and rod forms) ............................... 25

102.4 - Copper Base Alloys (block and disk forms) ............................ 26

102.5 - Copper “Benchmark” (block, chip and rod forms) ................... 27

102.10 - Lead Base Alloys (disk and powder forms) ........................... 28

102.11 - Lead Base Material (disk form) ........................................... 29

102.12 - Nickel Base Alloys (chip and disk forms) ............................. 30

102.13 - Trace Elements in Nickel Base Superalloys (chip form) ......... 31

102.14 - Nickel Oxides (powder form) .............................................. 32

102.15 - Tin Base Alloys .................................................................. 33

102.16 - Titanium Base Alloys (chip, cube, and disk forms) ...........34-35

102.17 - Zinc Base Alloys (chip and disk forms) ................................ 36

102.17 - Zinc Base Alloys (block, chip and disk forms) (Cont.)............. 37

102.18 - Zirconium Base Alloys (chip form) ....................................... 38

103. Microanalysis ................................................................................. 39

103.1 - Metals (rod, wire, disk, and cube forms) ................................ 40

103.2 - Synthetic Glasses for Microanalysis (rod and microsphere forms) .. 41

103.3 - Thin Film for Transmission Electron Microscope ..................... 42

103.4 - Semiconductor Thin Film for the Composition of Thin Films .... 43

103.5 - Nanomaterials: Composition ................................................. 44

104. High Purity Materials ...................................................................... 45

104.1 - High Purity Metals (solid forms) ............................................ 46

104.3 - Stoichiometry (powder form) ................................................ 47

104.4 - Microchemistry (powder form) .............................................. 48

104.5 - Spectrometry, Single Element Standard Solutions .............49-51

104.8 - Anion Chromatography (solution form) .................................. 51

104.9 - Stable Isotopic Materials (solid and solution forms) ................ 52

104.10 - Light Stable Isotopic Materials (gas, liquid, and solid forms) ...53-54

105. Health and Industrial Hygiene ........................................................ 55

105.1 - Clinical Laboratory Materials (gas, liquid, and solid forms) .......56-58

105.2 - Serum and Plasma Materials 

 (frozen, liquid, and lyophilized forms) .............................59-62

105.3 - Ethanol Solutions ................................................................. 63

105.4 - Toxic Substances in Urine (powder and frozen form) .........64-65

105.7 - Drugs of Abuse (hair, serum, and urine) ................................ 66

105.8 - DNA Profiling (solid forms) ................................................... 67

105.9 - Biomaterials (solid forms) ..................................................... 68

105.10 - Respirable Materials on Filter Media ................................... 69

105.11 - Trace Constituent Elements in Blank Filters.......................... 70

105.12 - Respirable Materials .......................................................... 71

105.13 - Lead in Paint, Dust, and Soil (powder and sheet forms) ........ 72

106. Inorganics....................................................................................... 73

106.1 - Metal (Inorganics) Constituents 

 in Natural Matrices (liquid and solid forms) ...................74-75

106.3 - Mercury in Activated Carbon ................................................ 76

106.4 - Environmental Matrices with Carbon Values........................... 76

106.6 - Used Auto Catalysts (powder form) ....................................... 77

106.7 - Zeolites (powder form) ......................................................... 78

107. Primary Gas Mixtures ..................................................................... 79

107.1 - Primary Gas Mixtures .....................................................80-82

108. Fossil and Alternative Fuels............................................................ 83

108.1 - Alcohols and Ethers [Oxygenates] in Gasoline ........................ 84

108.2 - Metal Constituents in Fossil Fuels (liquid forms) .................... 85

108.3 - Sulfur, Mercury, and Chlorine in Fuels (liquid and solid forms) ..86-90

108.3(1) - Crude Oil ......................................................................... 87

108.3(2) - Gasoline ......................................................................... 88

108.3(3) - Middle Distillates ............................................................. 88

108.3(4) - Biodiesel B100 ................................................................ 88

108.3(5) - Di-n-Butyl Sulfide ............................................................. 88

108.3(6) - Residual Fuel Oil ............................................................. 89

108.3(7) - Petroleum Coke................................................................ 89

108.3(8) - Subbituminous Coal ......................................................... 89

108.3(9) - Bituminous Coal ............................................................... 89

108.3(10) - Metallurgical Coke.......................................................... 90

108.4 - Moisture in Oils and Alcohols (liquid form) ............................. 90

108.5 - Reference Liquids for Evaluating Fuels................................... 90

108.6 - Fossil Fuel: Trace Elements (solid forms) ..........................91-92

108.8 - Biofuels .............................................................................. 93

108.9 - Biomass Feedstock .............................................................. 93

108.9(1) - Biomass Feedstock........................................................... 94

108.9(2) - Biomass Feedstock........................................................... 94

109. Organics ......................................................................................... 95

109.1 - Organics ............................................................................. 96

109.1 - Organics (Cont.) .................................................................. 97

109.3 - EPA: Organic Compounds Related 

 to Water Analysis (including drinking water)...................98-99

109.4 - Crime Scene Investigations ................................................ 100

110. Food and Agriculture .................................................................... 101

110.1 - Foods and Beverages ........................................................ 102

110.1(1) - Foods and Beverages .................................................... 103

110.1(2) - Foods and Beverages..................................................... 104

110.1(3) - Foods and Beverages..................................................... 105

110.2 - Food Contaminants and Allergens ...................................... 106

110.3 - USA/Canada Collaborative Materials (powder form) ......107-108

110.4 - Agricultural Materials (powder form) ................................... 109
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ii iii

Table of Contents Table of Contents

207.9 - Microscale Dimensional Measurement Standards ................ 180

208. Ceramics and Glasses ................................................................. 181

208.1 - Chemical Resistance [Durability] of Glass (solid form) .......... 182

208.2 - Electrical Properties of Dielectrics ....................................... 182

208.3 - Viscosity of Glass (bar form) ............................................... 183

208.4 - Glass Liquidus Temperature (solid form) .............................. 183

208.5 - Viscosity Fixpoints (solid forms) .......................................... 184

208.6 - Relative Stress Optical Coefficient (bar form) ....................... 184

208.8 - Density (liquid form) ........................................................... 184

209. X-ray Diffraction ........................................................................... 185

209.1 - X-Ray Diffraction (powder and solid forms) .......................... 186

Standard Reference Materials 

for Engineering Materials

301. Sizing............................................................................................ 187

301.1 - Particle Size (powder and solid forms) .........................188-189

301.2 - Cement and Coal Fly Ash Fineness ..................................... 190

301.3 - Electrophoretic Mobility, E (suspension form) ....................... 191

301.4 - Surface Area of Powders and Mercury Porosimetry Standards .... 191

301.5 - Particle Count Materials (powder and suspension forms) ...... 192

302. Surface Finish............................................................................... 193

302.1 - Microindentation Hardness (block form) .............................. 194

302.2 - Abrasive Wear (block form) ................................................ 195

302.4 - Surface Roughness (block form) ......................................... 195

302.5 - Rockwell Hardness (block form)........................................... 196

303. Nondestructive Evaluation............................................................ 197

303.2 - Artificial Flaw for Eddy Current NDE ..................................... 198

305. Fire Research................................................................................ 199

305.1 - Surface Flammability (sheet form) ...................................... 200

305.2 - Smoke Density Chamber (sheet form) ................................. 200

305.3 - Smoke Toxicity (granular and sheet forms) .......................... 201

305.4 - Flooring Radiant Panel (sheet form) .................................... 201

305.5 - Standard Cigarettes for Ignition Strength and 

 Ignition Resistance Testing ............................................ 202

309. Miscellaneous Performance Engineering Materials ..................... 203

309.1 - Impact Standards: Charpy V-Notch and Izod Impact Specimens .. 204

309.4 - Tape Adhesion Testing (sheet form) ..................................... 204

309.5 - Bleached Kraft Pulps (sheet form) ....................................... 205

309.6 - Secondary Ferrite Standards .............................................. 205

309.7 - Fracture Toughness of Ceramics ........................................ 206

309.8 - Magnetic Moment ............................................................. 206

309.10 - Healthcare Equipment Standards ...................................... 206

 

Index

Numeric Index ...............................................................................207-226

110.4 - Agricultural Materials (powder form) (Cont.).......................... 110

110.5 - Fertilizers (powder form) .................................................... 111

110.5 - Fertilizers (powder form) (Cont.)........................................... 112

110.6 - Wheat Hardness (kernel form) ............................................ 112

110.9 - Dietary Supplement Materials 

 (includes nutraceuticals and herbs) .........................113-114

111. Geological Materials and Ores...................................................... 115

111.2 - Ores (powder form) ............................................................ 116

111.2(1) - Ores (powder form) ........................................................ 117

111.2(1) - Ores (powder form) ........................................................ 118

111.2(2) - Ores (powder form) .................................................119-120

111.2(3) - Ores (powder form) Phosphate Rocks and Bauxites...120-121

111.3 - Ore Bioleaching Substrate (powder form) ............................ 121

111.4 - Clays (powder form) .......................................................... 122

111.5 - Rock and Minerals (powder form) ....................................... 123

111.5 - Rock and Minerals (powder form) (Cont.) ............................. 124

111.6 - Refractories (powder form) ................................................. 125

111.7 - Soils, Sediments, and Sludges (powder form) ...............126-128

112. Ceramics and Glasses .................................................................. 129

112.1 - Carbides and Nitrides (powder form) ................................... 130

112.2 - Cemented Carbides (powder form) ..................................... 130

112.3 - Glasses (powder and solid forms) ................................131-132

112.4 - Trace Elements (wafer form) ........................................133-134

113. Cement ......................................................................................... 135

113.1 - Cements and Related materials (powder form) .............136-137

113.2 - Portland Cement Clinkers (solid form) ................................. 138

114. Engine Wear Materials.................................................................. 139

114.1 - Metallo-Organic Compounds (solid form) ............................ 140

114.2 - Lubricating Oils ................................................................. 141

114.2(1) - Metals in Lubricating Oil .........................................141-142

114.2(2) - Sulfur and Chlorine in Lubricating Base Oil....................... 142

114.3 - Catalyst Characterization Material (liquid form) .................... 142

115. Forensics ...................................................................................... 143

115.1 - Forensics .......................................................................... 144

Standard Reference Materials 

for Physical Properties

201. Ion Activity .................................................................................... 145

201.1 - pH Calibration (powder form) .............................................. 146

201.2 - Biological Buffer Systems (powder form) ............................. 146

201.3 - pD Calibration (powder form) .............................................. 147

201.4 - Ion-Selective Electrode Calibration (powder form) ................ 147

201.5 - Electrolytic Conductivity (liquid form) ................................... 148

202. Polymeric Properties .................................................................... 149

202.1(1) - Polymers ....................................................................... 151

202.1(2) - Melt Flow Rate ............................................................... 151

202.1(3) - Viscosity ........................................................................ 152

202.1(4) - Biomaterials................................................................... 152

202.1 - Polymers (liquid, pellet, and powder forms) ......................... 150

203. Thermodynamic Properties .......................................................... 153

203.1 - Combustion Calorimetry (powder form) ............................... 154

203.2 - Solution Calorimetry .......................................................... 154

203.5(2) - Enthalpy and Heat Capacity ............................................ 155

203.5(3) - Thermal Analysis Purity Set ............................................. 155

203.5 - Differential Scanning Calorimetry 

 and Differential Thermal Analysis ................................... 154

203.8 - Defining Fixed Point, International 

 Temperature Scale of 1990, ITS-90 (solid forms) ........... 155

203.9 - Defining Fixed Point Cells, International 

 Temperature Scale of 1990, ITS-90 .............................. 156

203.10 - Reference Points (solid forms) .......................................... 156

203.11 - Freezing Point, Melting Point, 

 and Triple Point Cells (solid forms) ................................. 156

203.13 - Thermocouple Materials .................................................. 157

203.15 - Thermal Conductivity of Iron (rod form) ............................. 157

203.16 - Thermal Expansion of Metal, Glass (rod form) .................... 157

203.17 - Thermal Resistance and Thermal Conductivity 

 Properties of Glass, Silica, and Polystyrene (solid forms) . 158

203.18 - Thermoelectric Materials .................................................. 158

204. Optical Properties ........................................................................ 159

204.1 - Molecular Absorption (film, filter, solid, and solution forms) ... 160

204.2(1) - Fluorescence and Raman Spectroscopy........................... 163

204.2(3) - Infrared Reflectance (solid form)...................................... 163

204.2(4) - Optical Rotation (powder form) ........................................ 164

204.2(5) - Optical Rotation.............................................................. 164

204.2(6) - Photography (chart form) ................................................ 164

204.2(7) - Liquid Refractive Index - Mineral Oil................................. 165

204.2 - Optical Properties .............................................................. 161

204.2 - Optical Properties (Cont.) ................................................... 162

204.10 - Optical Properties-Notes .................................................. 166

205. Radioactivity ................................................................................. 167

205.1 - Radiation Dosimetry (wire form) .......................................... 168

205.3 - Special Nuclear Materials .................................................. 168

205.4 - Radioactive Solutions ..................................................169-170

205.5 - Radiopharmaceuticals (solution and gaseous forms) ............ 171

205.7 - Carbon-14 Dating (solid form) ............................................ 172

205.10 - Radon Emanation (encapsulated solution form) ................. 172

205.11 - Radioactive Natural Matrix Materials (powder form) ....173-174

206. Electrical Properties .................................................................... 175

206.1 - Electrical Resistivity and Conductivity of Iron (rod form) ........ 176

206.2 - Electrical Resistivity and Conductivity of 

 Silicon (block and wafer forms) ...................................... 176

206.4 - Superconducting Critical Current (wire form) ....................... 176

206.5 - On-Wafer Calibration Artifacts ............................................ 176

207. Metrology ..................................................................................... 177

207.1 - Scanning Electron Microscope (SEM) .................................. 178

207.2 - Optical Microscope Linewidth Measurement (photomask) .... 178

207.3 - Depth Profiling (wafer form) ............................................... 179

207.4 - Optoelectronics (solid forms) .............................................. 179

207.5 - Nonmagnetic Coating Thickness (plate form) ....................... 180

207.6 - Solder Thickness (plate form) ............................................. 180
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Standard Reference Materials 

for Chemical Composition

101. Ferrous Metals

1
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2

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

101.1 - Plain Carbon Steels (chip form)

These SRMs are for checking chemical methods of analysis. They consist of steel alloys selected to provide a wide range of analytical values for elements. 

They are furnished in 150-g units (unless otherwise noted) as chips usually sized between 0.4 mm to 1.2 mm, prepared from selected portions of commercial ingots.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

8k 12h 13g 14g 15h 16f 19h 20g 152a 178 368

Description >>

Bessemer Steel

(Simulated),

0.1 % Carbon

Basic OpenHearth Steel,

0.4% Carbon

0.6%

Carbon Steel

Carbon Steel

(AISI 1078)

Basic OpenHearth Steel,

0.1% Carbon

Basic OpenHearth Steel,

1% carbon

Basic

Electric Steel,

0.2% Carbon

AISI 1045

Steel

Basic OpenHearth Steel,

0.5% Carbon

(Tin Bearing)

0.4C

Basic Oxygen

Furnace Steel

Carbon Steel

(AISI 1211)

Unit of Issue >> 150 g 150 g 150 g 150 g 150 g 150 g 150 g 150 g 150 g 150 g 150 g

Element Composition (mass fraction, in %)

Aluminum (total) (0.038) 0.048 0.025 0.061 0.002 0.040

Carbon 0.0806 0.407 0.613 0.735 0.076 0.97 0.215 0.462 0.486 0.395 0.089

Chromium 0.0467 0.074 0.050 0.081 0.018 0.020 0.173 0.036 0.046 0.016 0.030

Cobalt 0.003

Copper 0.0200 0.073 0.066 0.047 0.013 0.006 0.466 0.034 0.023 0.032 0.010

Manganese 0.5040 0.842 0.853 0.456 0.373 0.404 0.393 0.665 0.717 0.824 0.82

Molybdenum 0.0397 0.006 0.011 0.009 0.003 0.038 0.008 0.036 0.003 0.003

Nickel 0.1174 0.032 0.061 0.030 0.017 0.008 0.248 0.034 0.056 0.010 0.008

Nitrogen 0.006 0.010

Phosphorus 0.0956 0.018 0.006 0.006 0.005 0.014 0.016 0.012 0.012 0.012 0.084

Silicon 0.0576 0.235 0.355 0.232 0.008 0.214 0.211 0.305 0.202 0.163 0.007

Sulfur 0.0775 0.027 0.031 0.019 0.019 0.026 0.022 0.028 0.030 0.014 0.132

Tin 0.032

Vanadium 0.0145 0.003 0.001 0.0008 >0.001 0.002 0.003 0.002 0.001 0.001 0.001
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3

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

101.2 - Low Alloy Steels (chip form) [150 g units (unless otherwise noted)]

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

30f 32e 33e 36b 72g 100b 106b 125b 129c 131g 139b 155 163 179 291 293 2171

Description >> LA Steel,

Cr-V

(SAE 6150)

NickelChromium

Steel

(SAE 3140)

LA Steel,

Ni-Mo

(SAE 4820)

ChromiumMolybdenum

Steel

LA Steel

(AISI 4130)

LA Steel,

Manganese

(SAE T340)

LA Steel,

Cr-Mo-Al

(Nitralloy rG)LA Steel,

High Silicon

LA Steel,

High Sulfur

(SAE 112)

Low Alloy

Silicon Steel

LA Steel,

Cr-Ni-Mo

(AISI 8640)

LA Steel,

Cr-W

LA Steel,

1.0 C

LA Steel,

High Silicon

LA Steel,

Cr-Mo

(ASTM A 213)

LA Steel,

Cr-Ni-Mo

(AISI 8620)

LA Steel,

(HSLA 100)

Unit Size >> 150 g 150 g 150 g 150 g 150 g 150 g 150 g 150 g 150 g 150 g 150 g 150 g 100 g 150 g 150 g 150 g 150 g

Elemental Composition (mass fraction in %)

Al (total) 0.030 (0.041) 1.07 0.329 0.0028 0.002 0.039 0.019

Carbon 0.490 0.4086 0.186 0.1143 0.278 0.397 0.326 0.0261 0.125 0.0035 0.403 0.905 0.933 0.027 0.177 0.222 0.066

Chromium 0.945 0.6775 0.068 2.178 0.905 0.063 1.18 0.0198 0.014 0.488 0.485 0.982 0.022 1.33 0.510 0.550

Copper 0.074 0.1266 0.070 0.1792 0.011 0.064 0.117 0.0707 0.013 0.097 0.083 0.087 0.056 0.047 0.032 1.47

Manganese 0.79 0.7983 0.525 0.4041 0.492 1.89 0.506 0.2751 0.769 0.778 1.24 0.897 0.094 0.550 0.960 0.73

Molybdenum 0.0228 0.224 0.9960 0.170 0.237 0.199 0.0087 0.002 0.182 0.039 0.029 0.014 0.538 0.204 0.546

Nickel 0.070 1.1938 3.36 0.205 0.016 0.030 0.217 0.0375 0.251 0.510 0.100 0.081 0.050 0.065 0.480 3.35

Niobium 0.024

Nitrogen 0.010 (0.009) (0.008) 0.004 0.007 0.007

Phosphorus 0.011 0.00888 0.005 0.0074 0.009 0.023 0.008 0.0276 0.076 0.013 0.015 0.007 0.006 0.008 0.018 0.006

Silicon 0.283 0.2775 0.262 0.2580 0.223 0.210 0.274 2.889 0.020 0.242 0.322 0.488 3.19 0.230 0.300 0.338

Sulfur 0.0210 0.0095 0.0004255

Tin (0.011) 0.0034 0.004

Tungsten 0.517

Vanadium 0.00225 0.0043 0.003 0.003 0.003 0.012 0.004 0.014 <0.01 0.004 0.003
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4

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

101.3 - Special Low Alloy Steels (chip and pin forms) [150-g units (unless otherwise noted)]

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

361 363 364 2159 2160 2165 2166 2167 2168

Description >>

AISI 4340 Steel

ChromiumVanadium Steel

(Modified)

LA Steel,

High C (mod.)

LA Steel,

Carbon &

Sulfur only

LA Steel,

Carbon &

Sulfur only

Low Alloy

Steel LA Steel, F LA Steel, G High Purity Iron

Unit of Issue >> 150 g 150 g 150 g 200 g 200 g 150 g 150 g 150 g 150 g

Elemental Composition (mass fraction in % unless noted by an asterik * for mg/kg)

Aluminum 0.021 0.24 (0.008) (0.006) 0.012 0.0045 (4*)

Antimony 0.0042 0.002 0.034 0.0010 0.0005 0.0020 (<3*)

Arsenic 0.017 0.010 0.052 0.0010 0.0035 0.0005 (<1*)

Bismuth (0.0004) (0.0008) (0.009) (<0.0001) (<0.0001) (<0.0001) (<3*)

Boron 0.0106 0.000944 4.365* 9.72* 0.064*

Cadmium (<1*)

Calcium 0.00010 0.00022 0.00003 (<2*)

Carbon 0.383 0.62 0.87 0.016 0.584 0.0063 0.015 0.051 10*

Cerium 0.0040 0.0030 0.00057

Chromium 0.694 1.31 0.063 0.050 0.024 0.0015 3*

Cobalt 0.032 0.048 0.15 0.0012 0.0022 0.0050 6*

Copper 0.042 0.10 0.249 0.0013 0.015 0.0014 5*

Germanium [0.006] [0.010] [0.003]

Gold (<0.00005) 0.0005 0.0001

Hafnium (0.0002) (0.0005) (0.0013)

Hydrogen (<0.0005) (<0.0005) (<0.0005)

Iron (95.6) (94.4) (96.7)

Lanthanum (0.001) (0.002) (0.0002)

Lead 0.000025 0.00186 0.0230 0.0003 0.003 (<0.0001) (<1*)

Magnesium 0.00026 0.00062 0.00016 (<0.0001) (<0.0001) (<0.0001) (<3*)

Manganese 0.66 1.50 0.255 0.144 0.066 0.022 6*

Molybdenum 0.19 0.028 0.49 0.0055 0.0035 0.020 (<7*)
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5

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- Reference values are italicized

- Values in parentheses are for information only

361 363 364 2159 2160 2165 2166 2167 2168

Description >>

AISI 4340 Steel

ChromiumVanadium Steel

(Modified)

LA Steel,

High C (mod.)

LA Steel,

Carbon &

Sulfur only

LA Steel,

Carbon &

Sulfur only

Low Alloy

Steel LA Steel, F LA Steel, G High Purity Iron

Unit of Issue >> 150 g 150 g 150 g 200 g 200 g 150 g 150 g 150 g 150 g

Elemental Composition (mass fraction in % unless noted by an asterik * for mg/kg)

Neodymium 0.00075 0.0012 0.00018

Nickel 2.00 0.30 0.144 0.155 0.022 0.002 10*

Niobium 0.022 0.049 0.157 0.0004 0.005 0.0095 (<5*)

Nitrogen (0.0037) (0.0041) (0.0032) 6*

Oxygen (0.0009) (0.00066) (0.0010) 110*

Phosphorus 0.014 0.029 0.01 0.0052 0.0012 0.0031 14*

Praseodymium (0.0003) (0.0004) (0.0001)

Selenium (0.004) (0.00016) (0.00021) (0.0035) (0.0035) (<5*)

Silicon 0.222 0.74 0.065 (0.004) 0.010 0.026 (<5*)

Silver 0.0004 0.0037 (0.00002) 0.0002 0.0005 0.0007

Strontium (<0.0005) (<0.0005) (0.001)

Sulfur 0.0143 0.0068 0.0250 0.0023 0.012 0.003643 0.002164 0.008731 10.7*

Tantalum 0.020 (0.53) 0.11 (0.004) (0.011) (0.002) (<5*)

Tellurium (0.0006) (0.0009) (0.0002) (0.003) (0.003) (0.0003) (<1*)

Tin 0.010 0.104 0.008 0.002 0.0010 0.006 (<3*)

Titanium 0.020 0.050 0.24 0.0051 0.0007 0.010 (<3*)

Tungsten 0.017 0.046 0.10 (<10*)

Vanadium 0.011 0.31 0.105 0.0040 0.009 0.033 (<1*)

Zinc (0.0001) (0.0004) [0.001] (<5*)

Zirconium 0.009 0.049 0.068 (0.0004) (0.004) (<5*)

*Value is in mg/kg.

101.3 - Special Low Alloy Steels (chip and pin forms) [150-g units (unless otherwise noted)] (Cont.)
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6

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- Reference values are italicized

- Values in parentheses are for information only

101.4 - High Alloy Steels (chip form) [150-g units (unless otherwise noted)]

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

126c 344 345a 346a 348a 862 868

Description >> High-Nickel

Steel (36 % Ni)

HA Steel,

(Mo Precipitation

Hardening)

HA Steel,

(Cu Precipitation

Hardening) Valve Steel

Hi Temp. Alloy,

(A286) Ni-Cr

High Temp.

Alloy L605

High Temp.

Alloy Fe-Ni-Co

Unit of Issue >> 150 g 150 g 150 g 150 g 150 g 100 g 100 g

Elemental Composition (mass fraction in %)

Al (total) 1.16 (<0.001) (0.001) 0.249 0.026 0.99

Arsenic (<0.005)

Bismuth (<0.0001)

Boron (<0.001) (<0.001) 0.00519 (<0.005) 0.0078

Carbon 0.02540 0.069 0.040 0.502 0.0428 0.120 0.022

Chromium 0.0625 14.95 15.52 21.08 14.65 20.0 0.077

Cobalt 0.0080 0.099 (0.05) 0.151 15.1 16.1

Copper 0.0396 0.106 3.39 0.375 0.137 0.0010 0.022

Iron 55.6 (<0.0001) 40.5

Lead (<0.0003)

Manganese 0.4684 0.57 0.79 9.16 0.652 1.59 0.052

Molybdenum 0.0110 2.40 0.43 0.237 1.15 1.80 0.014

Nickel 36.054 7.28 4.27 3.43 24.08 9.74 37.78

Niobium 0.27 (0.01) 0.067 (<0.01) 2.99

Nitrogen 0.031 0.442 (0.003)

Phosphorus 0.00350 0.018 0.024 0.031 0.0239 0.002 <0.003

S (comb.) 0.0050 0.019 0.012 0.002 0.00095 0.0008 0.0025

Silicon 0.1936 0.395 0.61 0.219 0.411 0.017 0.097

Silver (0.000025)

Tantalum (<0.001) (<0.01) 0.003

Tin (0.008) (<0.033)

Titanium 0.076 (<0.001) (<0.001) 2.18 51.5 1.48

Tungsten 0.309 0.0695

Vanadium (0.001) 0.040 0.080 0.096 0.229 0.005 0.077

Zirconium (<0.018)
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7

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- Reference values are italicized

- Values in parentheses are for information only

101.5 - Gases in Ferrous Metals (rod form) 

These SRMs are for determining oxygen and nitrogen by vacuum fusion, inert gas fusion, and neutron activation methods.

For further information see SP 260-14

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

1089 1090 1091a 1093 1094 1754 1755

Description >> Steels, Set

(consists of SRMs 1095, 1096,

1097, 1098 and 1099) Ingot Iron, Oxygen Stainless Steel (AISI 431) Valve Steel, Oxygen Maraging Steel Steel (AISI 4320)

Nitrogen in

Low Alloy

Steel

Unit of Issue >> 5 rods rod rod rod rod rod disk

Elemental Composition (mass fraction, in %)

Hydrogen (in mg/kg) (5 levels)

Nitrogen (in mg/kg*) (2 levels 3 levels) (60) (876) (71) 81 118.4

Oxygen (in mg/kg) 5 levels 491 132.2 60 4.5 24

These SRMs are sold only as a set designated SRM 1089.
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8

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- Reference values are italicized

- Values in parentheses are for information only

101.6 - Stainless Steels (chip form) [150-g units (unless otherwise noted)] 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. For specific values and 

uncertainties, the certificate is the only official source.

73c 101g 121d 123c 133b 160b 166c 339 343a 893 895

Description >>

Stainless Steel,

Cr (SAE 420)

Stainless Steel

(AISI 304L)

Stainless Steel,

(Cr 17-Ni 11-

Ti 0.3)

(AISI 321)

Stainless Steel,

Cr-Ni-Nb

(AISI 348)

ChromiumMolybdenum

Steel

Stainless Steel

(Cr 18-Ni 12-

Mo 2)

(AISI 316)

Stainless Steel,

Low-Carbon

(AISI 316L)

Stainless Steel,

Cr-NiSe (SAE 30)Stainless Steel

(AISI 431)

Stainless Steel

(SAE 405)

Stainless Steel

(SAE 201)

Unit of Issue >> 150 g 100 g 150 g 150 g 150 g 150 g 100 g 150 g 150 g 150 g 150 g

Elemental Composition (mass fraction in %)

Aluminum (0.001) (0.20)

Arsenic 0.01067

Bismuth (<0.0005)

Boron (<0.001)

Carbon 0.310 0.0136 0.067 0.056 0.128 0.0445 0.00781 0.052 0.149 0.027 0.066

Chromium 12.82 18.46 17.50 17.40 12.63 18.37 17.42 15.64 13.55 16.72

Cobalt 0.09 0.097 0.12 0.109 0.096 (0.04) 0.020 0.126

Copper 0.080 0.029 0.1205 0.103 0.080 0.175 0.199 0.162 0.261 0.439

Lead (0.001) (<0.0001) (0.0001) (0.0001)

Manganese 0.330 0.085 1.81 1.75 1.07 1.619 0.738 0.42 0.378 7.09

Molybdenum 0.091 0.004 0.167 0.22 0.052 2.26 0.248 0.164 0.023 0.337

Nickel 0.246 10.00 11.18 11.34 0.230 12.35 8.89 2.16 0.192 5.34

Niobium 0.65 (0.01) (<0.0005) (<0.009)

Nitrogen 0.037 0.05 (0.04)

Phosphorus 0.018 0.007 (0.019) 0.024 0.018 0.0200 0.129 0.026 0.022 0.038

Selenium 0.247 (<0.0001) (<0.0001)

Silicon 0.181 1.08 0.536 0.59 0.327 0.5093 0.654 0.545 0.326 0.399

Sulfur 0.036 0.0078 (0.013) 0.014 0.328 0.0175 0.013 0.001 0.0003 0.0033

Tantalum <0.001 (<0.001) (<0.001)

Titanium 0.346 (<0.001) (0.01) (<0.0004)

Tungsten (0.012) (0.11) (0.03)

Vanadium 0.030 0.041 0.071 0.050 0.058 0.056 0.080 0.079
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9

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- Reference values are italicized

- Values in parentheses are for information only

101.7 - Tool Steels (chip form) [150-g units] 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source. 

50c 132b 134a 2172

Description >> Tungsten-Chromium-Vanadium Steel Tool Steel (AISI M2) Tool Steel, Mo-W-Cr-V S-7 Tool Steel

Unit of Issue >> 150 g 150 g 150 g 150 g

Elemental Composition (mass fraction in %)

Arsenic 0.0225

Carbon 0.7193 0.864 0.808 0.480

Chromium 4.128 4.38 3.67 3.11

Cobalt (0.035) 0.029

Copper 0.0792 0.088 0.101 0.083

Manganese 0.3417 0.341 0.218 0.61

Molybdenum 0.0821 4.90 8.35 1.37

Nickel 0.0686 0.230 0.088 1.04

Nitrogen 0.0117

Phosphorus 0.0222 0.012 0.018 0.008

S (comb.) 0.004 0.007 0.0031

Silicon 0.3102 0.185 0.323 0.263

Sulfur 0.006367 0.007 (Grav)

Tin 0.0183

Tungsten 18.445 6.28 2.00

Vanadium 1.158 1.83 1.25 0.234
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10

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- Values in parentheses are for information only

101.8 - Low Alloy Steels (disk and rod forms) 

Steel and iron SRMs described here are furnished in various forms (disk, rod and chips) for optical emission and X-ray fluorescence 

spectrometric methods and for other methods of chemical analysis.

See also: Table 101.3 and Table 101.5.

Nominal Sizes for Solid Steel SRMs:

600 Series: 3.2 mm diameter and 51 mm long.

1100 and 1200 Series: 31 mm diameter and 19 mm thick.

1700 Series: 34mm diameter and 19 mm thick.

A “C” preceding the SRM number indicates a chill cast sample; 31 mm diameter and 19 mm thick.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

662 663 665 1134 1135 1218 1224 1225 1226 1227 1228 1254 1264a 1265a 1269 1270

Description >>

AISI 94B17

Steel

(Modified)

ChromiumVanadium

Steel

(Modified)

Electrolytic

Iron

LA Steel,

High

Silicon

LA Steel,

High Silicon

LA Steel,

High

Silicon

LA Steel,

Carbon

(AISI 1078)

LA Steel

(AISI 4130) LA Steel

LA Steel,

Basic Open

Hearth,

1% C

LA Steel,

0.1% C

LA Steel

(Ca only)

LA Steel,

High

Carbon

(mod.)

Electrolytic Iron

Line Pipe

(AISI 1526

mod.)

LA Steel,

Cr-Mo

(A336)

(F-22)

Unit of Issue >> rods 5 rods 5 rods disk disk disk disk disk disk disk disk disk disk disk disk disk

Elemental Composition (mass fraction in %)

Al (total) 0.095 0.024 (0.0007) 0.329 0.0028 0.005 0.060 0.054 (0.028) 0.061 (0.0080) (0.0007) 0.016 (0.005)

Antimony 0.012 0.002 0.034

Arsenic 0.092 0.010 (0.0002) 0.052 (0.0002) (0.006) (0.02)

Bismuth (0.002) (0.0008) (0.0009)

Boron 0.0025 0.0009 0.00013 (0.011) 0.00013 (<0.0001) (0.0033)

Cadmium 

Calcium (0.0002) (<0.0001) 0.0053 0.00004

Carbon 0.163 0.57 0.008 0.0261 0.027 0.0029 0.75 0.274 0.085 0.97 0.072 0.871 0.0067 0.298 0.077

Cerium (0.0011) (0.0016) 0.00022

Chromium 0.30 1.31 0.0072 0.0198 0.022 0.006 0.071 0.91 0.467 0.019 0.016 0.066 0.0072 0.201 2.34

Cobalt 0.30 0.048 0.0070 (0.002) 0.029 (0.0008) 0.15 0.0070 (0.014) 0.038

Copper 0.51 0.098 0.0058 0.0707 0.056 0.003 0.072 0.125 0.006 0.012 0.250 0.0058 0.095 0.114

Germanium [0.002] [0.010] [0.003] <50

Gold (<0.00005) 0.0005 0.0001

Hafnium [0.006] [0.0015] (0.0013)

Hydrogen [<0.0005] [<0.0005] (<0.0005) <5
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- Reference values are italicized

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662 663 665 1134 1135 1218 1224 1225 1226 1227 1228 1254 1264a 1265a 1269 1270

Description >>

AISI 94B17

Steel

(Modified)

ChromiumVanadium

Steel

(Modified)

Electrolytic

Iron

LA Steel,

High

Silicon

LA Steel,

High Silicon

LA Steel,

High

Silicon

LA Steel,

Carbon

(AISI 1078)

LA Steel

(AISI 4130) LA Steel

LA Steel,

Basic Open

Hearth,

1% C

LA Steel,

0.1% C

LA Steel

(Ca only)

LA Steel,

High

Carbon

(mod.)

Electrolytic Iron

Line Pipe

(AISI 1526

mod.)

LA Steel,

Cr-Mo

(A336)

(F-22)

Unit of Issue >> rods 5 rods 5 rods disk disk disk disk disk disk disk disk disk disk disk disk disk

Elemental Composition (mass fraction in %)

Iron (95.3) (94.4) 99.9 (96.7) 99.9

Lanthanum 0.0004 0.0006 0.00007

Lead 0.0043 0.0022 0.000015 (0.0001) 0.024 0.000015 0.005 (0.0016)

Magnesium (0.0006) (0.0005) 0.00015

Manganese 1.05 1.50 0.0057 0.2751 0.094 0.014 0.41 0.48 0.274 0.402 0.365 0.258 0.0057 1.35 0.626

Molybdenum 0.070 0.30 0.0050 0.0087 0.014 (0.003) 0.013 0.166 0.446 0.003 0.009 0.49 0.0050 0.036 0.956

Neodymium (0.0005) (0.0007) 0.00007

Nickel 0.60 0.32 0.041 0.0375 0.050 (0.002) 0.054 0.018 5.42 0.007 0.018 0.142 0.041 0.108 0.174

Niobium 0.30 0.049 (0.005) 0.157

Nitrogen (0.0041) (0.0041) (0.0032) <20

Oxygen (0.0011) (0.0007) (0.0010) <70

Phosphorus 0.044 0.029 0.0025 0.0276 0.006 (0.002) 0.009 0.007 0.0022 0.014 0.004 0.010 0.0011 0.012 0.0065

Praseodymium (0.00012) (0.00018) (0.00003)

Selenium [0.001] [0.0001] (0.00021)

Silicon 0.4 0.74 0.0080 2.889 3.19 (3.2) 0.173 0.221 0.231 0.215 0.007 0.066 0.0080 0.189 0.247

Silver (0.0010) (0.0038) (0.000002) <0.2 (0.0002) (0.0001)

Sulfur 0.037 0.0055 0.0059 0.0095 0.026 0.0011 0.039 0.014 0.0044 0.026 0.018 0.025 0.0055 0.0061 0.0065

Tantalum 0.21 (0.053) 0.11

Tellurium (0.0005) (0.0022) 0.00018

Tin 0.016 (0.095) 0.0034 0.004 (0.003) (0.008) <2 (0.039) (0.02)

Titanium 0.084 0.050 0.0006 (0.004) 0.0021 0.24 (0.0001) (0.009) (0.003)

Tungsten 0.21 0.046 (0.005) 0.102 <1 (0.001) (0.003)

Vanadium 0.041 0.31 0.0006 <0.1 (<0.001) 0.002 0.004 0.0018 0.002 <0.001 0.106 0.0006 0.004 0.013

Zinc (0.0005) (0.0004) [0.001] <3

Zirconium 0.20 0.050 (0.002) (0.010) (0.0006) 0.069

*Values are in mg/kg.

101.8 - Low Alloy Steels (disk and rod forms) (Cont.)
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12

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1271 1286 1761a 1762a 1763a 1764a 1765 1766 1767 1768 C1221 C1285

Description >> LA Steel

(HSLA-100)

Low Alloy

Steel

(HY 80)

Low Alloy

Steel

Low Alloy

Steel

Low Alloy

Steel

Low Alloy

Steel

Low Alloy

Steel

Low Alloy

Steel

Low Alloy

Steel

High-Purity

Iron

LA Carbon

(AISI 1211)

LA Steel

(A242) (mod.)

Unit of Issue >> disk disk disk disk disk disk disk disk disk disk disk disk

Elemental Composition (mass fraction in % unless noted by an asterik * for mg/kg)

Al (total) 0.020 0.109 0.055 0.0706 0.0435 0.0098 (0.006) 0.012 0.004 0.0024 0.111 (0.12)

Antimony 0.0052 0.011 0.0010 0.0005 (<1.0*) (0.04)

Arsenic 0.019 0.011 0.0173 0.055 0.0100 0.0010 0.0035 0.0005 (<1.0*) (0.022)

Bismuth (<0.0001) (<0.0001) (<0.0001) (<4.0*)

Boron (0.006) 0.0023 0.0042 0.0054 0.0010 0.0009 0.00012 0.0010 (<2.0*)

Cadmium (<1.0*)

Calcium (0.0003) (<1.0*)

Carbon 0.064 0.196 1.05 0.341 0.202 0.592 0.006 0.015 0.052 0.0010 0.020 0.058

Cerium (0.002) (0.0021)

Chromium 0.552 1.53 0.222 0.923 0.498 1.468 0.051 0.024 0.0015 (<2.0*) 0.049 0.80

Cobalt 0.116 0.027 0.0616 0.093 0.012 0.0012 0.0020 0.0050 0.0025 (0.010) 0.036

Copper 1.48 0.043 0.298 0.1186 0.042 0.5178 0.0013 0.015 0.0014 0.0006 0.041 0.37

Germanium 

Gold

Hafnium 

Hydrogen 

Iron (95.0) (94.2) (95.1)

Lanthanum 

Lead (0.0002) 0.0003 0.003 (0.0001) (<1.0*)

Magnesium (<0.0001) (<0.0005) (<0.0001) (<6.0*)

Manganese 0.73 0.152 0.679 1.99 1.584 1.193 0.144 0.067 0.022 0.0014 0.102 0.332

Molybdenum 0.543 0.334 0.103 0.353 0.490 0.2007 0.005 0.0035 0.020 (<3.0*) 0.038 0.164

Neodymium

Nickel 3.34 2.81 1.981 1.156 0.513 0.2006 0.154 0.021 0.002 0.0014 0.067 1.17

101.8 - Low Alloy Steels (disk and rod forms) (Cont.)
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13

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- Reference values are italicized

- Values in parentheses are for information only

1271 1286 1761a 1762a 1763a 1764a 1765 1766 1767 1768 C1221 C1285

Description >> LA Steel

(HSLA-100)

Low Alloy

Steel

(HY 80)

Low Alloy

Steel

Low Alloy

Steel

Low Alloy

Steel

Low Alloy

Steel

Low Alloy

Steel

Low Alloy

Steel

Low Alloy

Steel

High-Purity

Iron

LA Carbon

(AISI 1211)

LA Steel

(A242) (mod.)

Unit of Issue >> disk disk disk disk disk disk disk disk disk disk disk disk

Elemental Composition (mass fraction in %)

Niobium 0.025 (0.012) 0.021 0.0692 0.100 0.0416 0.0004 0.005 0.010 (<5.0*)

Nitrogen 0.0042 (0.002) 0.0045 0.0023 0.0010 0.0033 0.0008 0.002

Oxygen 0.036

Phosphorus 0.005 0.008 0.042 0.0346 0.0123 0.0210 0.0052 0.002 0.0031 0.0013 0.090 0.072

Praseodymium 

Selenium (0.0035) (0.0035) (<1.0*)

Silicon 0.334 0.130 0.182 0.351 0.633 0.0595 (0.004) 0.010 0.026 (<10.0) 0.876 0.36

Silver 0.0002 0.0005 0.0008

Sulfur 0.0013 0.017 0.037 0.0295 0.022 0.0118 0.0038 0.0024 0.0090 0.0003 0.112 0.020

Tantalum 0.050 0.0203 0.012 0.0297 (0.004) (0.006) (0.002) (<1.0*)

Tellurium (0.003) (0.003) (0.0003) (<1.0*)

Tin 0.012 0.050 0.0479 0.011 0.024 0.002 0.0010 0.006 (<1.0*) 0.35

Titanium 0.040 0.173 0.0952 0.308 0.0286 0.0055 0.0005 0.011 (<10.0*) (0.0014)

Tungsten (0.13) (0.02) (0.03) (0.0016) (0.001) (<2.0*) (0.03)

Vanadium 0.003 0.0057 0.054 0.2010 0.307 0.1063 0.0040 0.009 0.033 (<1.0*) (0.0007) 0.150

Zinc (<1.0*)

Zirconium (0.021) 0.012 0.0285 0.044 0.0012 (0.0002) (0.0004) (0.004) (<1.0*) (0.0017) (0.02)

*Values are in mg/kg.

101.8 - Low Alloy Steels (disk and rod forms) (Cont.)
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14

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101.9 - High Temperature Alloys (chip and disk forms)

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

866 867 1230 1246 1247 1250 C2400 C2401

Description >> Incoloy, 800 Incoloy, 825

High Temp.

Alloy, A286

Incoloy®

800

Incoloy®

825

High Temp.

Alloy Fe-Ni-Co

HA Steel

ACI (17/4 PH)

HA Steel

(ACI-C-4M-Cu)

Unit of Issue >> 100 g 100 g disk disk disk disk disk disk

Elemental Composition (mass fraction in %)

Aluminum 0.29 0.062 0.249 0.30 0.060 0.99

Arsenic (<0.005)

Bismuth (<0.0001)

Boron <0.001 0.002 0.00519 <0.001 0.002 0.0078 (0.0004) (0.0004)

Carbon 0.082 0.021 0.0428 0.082 0.021 0.022 0.036 0.062

Chromium 20.1 23.4 14.65 20.1 23.4 0.077 17.06 25.1

Cobalt 0.075 0.089 0.151 0.076 0.089 16.1 0.10 0.19

Copper 0.49 1.74 0.137 0.49 1.75 0.022 2.63 3.17

Iron 46.1 26.6 55.6 46.2 26.5 40.5

Lead (<0.0003)

Manganese 0.92 0.39 0.652 0.91 0.38 0.052 0.71 1.03

Molybdenum 0.36 2.73 1.15 0.36 2.73 0.014 0.23 2.13

Nickel 30.8 43.5 24.08 30.8 43.5 37.78 4.07 5.46

Niobium (0.09) (0.45) 0.067 (0.09) (0.46) 2.99 0.15 (0.002)

Nitrogen (0.003)

Phosphorus 0.017 0.018 0.0239 0.018 0.018 <0.003 0.013 0.025

Silicon 0.17 0.32 0.411 0.18 0.32 0.097 0.61 0.74

Silver (0.000025)

Sulfur 0.001 0.002 0.00095 0.001 0.002 0.0025 0.003 0.027

Tantalum (<0.001) 0.003

Tin (<0.033)

Titanium 0.31 0.75 2.18 0.32 0.75 1.48

Tungsten 0.0695 (0.1) (0.18)

Vanadium 0.229 0.077 0.092 0.20

Zinc (<0.018)
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15

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

101.10 - Stainless Steels (disk form) 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

1155 1171 1172 1219 1223 1295 1297 C1151a C1152a C1153a C1154a C1296

Description >> Stainless Steel

Cr 18-Ni

12-Mo 2

(AISI 316)

Stainless Steel

Cr 17-Ni

11-Ti 0.3

(AISI 321)

Stainless Steel

Cr 17-Ni

11-Nb 0.6

(AISI 348)

Stainless Steel

Cr-Ni

(AISI 431)

Chromium

Steel

Stainless Steel

(SAE 405)

Stainless Steel

(SAE 201)

Stainless Steel

23Cr-7Ni

Stainless Steel

18Cr-11Ni

Stainless Steel

17Cr-9Ni

Stainless Steel

19Cr-13Ni Stainless Steel

Unit of Issue >> disk disk disk disk disk disk disk disk disk disk disk disk

Elemental Composition (mass fraction in %)

Aluminum (0.001) (<0.005) (0.20) (0.003) (0.003) (0.004) (0.004) 0.035

Arsenic 0.01067 (0.006) (0.005)

Bismuth (<0.0005)

Boron (<0.001)

Calcium (<0.0005)

Carbon 0.0445 0.067 0.056 0.149 0.127 0.027 0.066 0.034 0.142 0.225 0.100 0.038

Chromium 18.37 17.50 17.40 15.64 12.64 13.52 16.69 22.59 17.76 16.70 19.31 27.90

Cobalt 0.109 0.097 0.12 (0.04) 0.020 0.127 0.033 0.22 0.127 0.38 0.026

Copper 0.175 0.1205 0.105 0.162 0.081 0.260 0.442 0.385 0.097 0.226 0.44 0.056

Lead (0.001) (<0.0001) (0.0001) (<0.0001) 0.0039 0.0047 0.006 0.017 (<0.001)

Magnesium (<0.0005)

Manganese 1.619 1.81 1.76 0.42 1.08 0.387 7.11 2.39 0.95 0.544 1.44 0.256

Molybdenum 2.26 0.167 0.22 0.164 0.053 0.023 0.331 0.79 0.44 0.24 0.068 3.43

Nickel 12.35 11.18 11.35 2.16 0.232 0.194 5.34 7.25 10.86 8.76 13.08 0.373

Niobium 0.65 (0.01) (<0.0005) (<0.009) (0.015) (0.15) (0.48) (0.22) 0.20

Nitrogen (0.04) 0.078 (0.05) (0.21) (0.055) (0.11) (0.077)

Phosphorus 0.0200 (0.019) 0.025 0.026 0.018 0.022 0.038 0.017 0.023 0.030 0.06 0.024
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16

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

101.10 - Stainless Steels (disk form) (Cont.)

1155 1171 1172 1219 1223 1295 1297 C1151a c1152a C1153a C1154a C1296

Description >> Stainless Steel

Cr 18-Ni

12-Mo 2

(AISI 316)

Stainless Steel

Cr 17-Ni

11-Ti 0.3

(AISI 321)

Stainless Steel

Cr 17-Ni

11-Nb 0.6

(AISI 348)

Stainless Steel

Cr-Ni

(AISI 431)

Chromium

Steel

Stainless Steel

(SAE 405)

Stainless Steel

(SAE 201)

Stainless Steel

23Cr-7Ni

Stainless Steel

18Cr-11Ni

Stainless Steel

17Cr-9Ni

Stainless Steel

19Cr-13Ni Stainless Steel

Unit of Issue >> disk disk disk disk disk disk disk disk disk disk disk disk

Elemental Composition (mass fraction in %)

Silicon 0.5093 0.536 0.59 0.545 0.327 0.321 0.397 0.29 0.64 1.00 0.53 0.66

Sulfur 0.0175 (0.013) 0.014 0.001 0.329 0.0003 0.0033 0.038 0.0064 0.019 0.051 0.013

Tantalum <0.001 (<0.001) (<0.001) (0.004) (0.001) (0.03) (0.045) (<0.001)

Tin (0.008) (0.004) (0.02) (<0.010) (<0.01)

Titanium 0.346 (<0.001) (0.01) (<0.0004) (0.013) (0.004) 0.23

Tungsten (0.11) (0.012) (0.02) (0.002) (0.03) (<0.01)

Vanadium 0.050 0.056 0.068 0.082 0.080 0.040 0.033 0.176 0.135 0.134

Zirconium (0.0001) (0.0001) (0.001)
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17

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

101.11 - Specialty Steels (disk form) 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source. 

1157 1158 1233 1772

Description >> Specialty Steel, Tool

(AISI M2)

High-Nickel Steel 

(36% Ni)

Specialty Steel,

Valve Steel

Tool Steel

(S-7)

Unit of Issue >> disk disk disk disk

Elemental Composition (mass fraction in %)

Carbon 0.836 0.02540 0.502 0.447

Chromium 4.36 0.0625 21.08 3.10

Cobalt 0.028 0.0080

Copper 0.088 0.0396 0.375 0.083

Manganese 0.34 0.4684 9.16 0.61

Molybdenum 4.86 0.0110 0.237 1.38

Nickel 0.228 36.054 3.43 0.105

Phosphorus 0.011 0.00350 0.031 0.008

Silicon 0.18 0.1936 0.219 0.264

Sulfur 0.004 0.0050 0.002 0.0031

Tungsten 6.28 (0.01)

Vanadium 1.82 (0.001) 0.096 0.236
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18

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

101.12 - Steelmaking Alloys (powder form) 

These SRMs are for checking chemical methods of analysis for major constituents and selected minor elements. They are furnished as fine powders (usually <0.1 mm).

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

57b 58a 59a 64c 68c 90 195 196 689

Description >>

Silicon Metal

Ferrosilicon

(73% Si Regular Grade) Ferrosilicon

Ferrochromium,

High Carbon

Ferromanganese,

High Carbon Ferrophosphorus

Ferrosilicon

(75% Si-HP Grade)

Ferrochromium,

Low Carbon

Ferrochromium

Silicon

Unit of Issue >> 40 g 75 g 50 g 100 g 100 g 75 g 75 g 100 g 100 g pow

Elemental Composition (mass fraction in %)

Aluminum 0.1690 0.953 0.35 0.0460 0.049

Arsenic (0.002) 0.021 (0.009)

Bismuth (<0.003)

Boron 0.00125 (<0.003) 0.058 0.00105 0.0017

Calcium 0.00222 0.271 0.042 0.054

Carbon (0.02) 0.0143 0.046 4.68 6.72 0.03445 0.035 0.043

Cerium 

Chromium 0.00173 0.0193 0.080 68.00 0.074 0.0474 70.83 36.4

Cobalt (0.0014) (<0.03) 0.051 (<0.01) 0.034

Copper (0.00172) 0.0225 0.052 0.005 0.0468 0.013

Iron 0.3400 25.239 50.05 24.98 12.3 23.62 23.2

Lanthanum 

Lead (0.004)

Magnesium 

Manganese 0.00782 0.1611 0.75 0.16 80.04 0.1710 (0.282) 0.32

Molybdenum (<0.01) (0.01)

Nickel 0.00153 0.0124 0.033 0.43 0.0318 0.20

Nitrogen 0.045 (0.002)

Oxygen (0.4) (0.25) (<1) (0.06)

Phosphorus 0.00163 0.0105 0.016 0.020 0.19 26.17 0.0190 0.020 0.026

Silicon 73.13 48.10 1.22 0.225 75.32 0.373 39.5

Sulfur (0.003) (<0.002) 0.002 0.067 0.008 (<0.002) 0.003 0.002

Tin (<0.005) (<0.005)

Titanium 0.0346 0.0510 0.02 0.0367 0.40

Vanadium (0.0025) (0.002) 0.15 (0.12) 0.09

Zirconium 0.00178 (<0.005) 0.0110
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19

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

101.13 - Cast Irons (chip form) 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

4l 5m 6g 82b 107c 115a 122i 334 338 341 342a 890 891 892

Description >>

Cast Iron Cast Iron Cast Iron

Cast Iron

(Ni-Cr)

Cast Iron

(Ni-Cr-Mo)

Cast Iron

(Cu-Ni-Cr) Cast Iron

Gray Cast Iron

(Carbon & Sulfur)

White Cast Iron

(Carbon & Sulfur)

Ductile

Cast Iron

Nodular

Cast Iron

Cast Iron,

HC250+V

Cast Iron,

Ni-Hard, Type I

Cast Iron,

Ni-Hard,

Type IV

Unit of Issue >> 150 g 150 g 150 g 150 g 150 g 150 g 150 g 150 g 150 g 150 g 150 g 150 g 150 g 150 g

Elemental Composition (mass fraction in %)

Al (total) (0.004) (<0.01) (0.008) (0.009)

Antimony (<0.001)

Arsenic (0.03) 0.042 (0.008) (0.004) (0.006)

C Graphite 2.66 2.01 2.37 1.98 1.96 1.23 1.38

C Total 3.21 2.59 2.85 2.85 2.99 2.62 3.47 2.83 3.33 1.81 1.86 2.91 2.71 3.33

Chromium 0.118 0.080 0.370 0.333 0.693 1.98 0.151 1.98 0.034 32.4 2.23 10.18

Cobalt (0.03) 0.19 0.31

Copper 0.240 0.89 0.502 0.038 0.205 5.52 0.033 0.152 0.135 0.055 0.150 0.270

Iron (61.8) (88.5) (77.4)

Lead (0.001)

Magnesium 0.068 0.070

Manganese 0.825 0.74 1.05 0.745 0.480 1.00 0.530 0.92 0.274 0.62 0.55 0.76

Molybdenum 0.040 0.029 0.035 0.002 0.83 0.050 0.008 0.010 0.006 0.018 0.27 0.20

Nickel 0.042 0.041 0.135 1.22 2.20 14.49 0.047 20.32 0.058 0.397 4.48 5.53

Nitrogen (0.0016) 0.006 0.005 (0.089) (0.012) (0.019)

Phosphorus 0.149 0.32 0.557 0.025 0.079 0.086 0.28 0.024 0.019 0.025 0.038 0.054

S Comb 0.043 0.133 0.124 0.007 0.059 0.065 0.087 0.043 0.015 0.007 0.006 0.015 0.029 0.015

S Grav 0.064 0.007

Silicon 1.33 1.83 1.05 2.10 1.21 2.13 0.89 2.44 2.73 0.67 0.56 1.83

Tin (0.004) (<0.01) (0.02)

Titanium (0.03) 0.097 0.059 0.027 0.019 0.020 0.024 0.018 0.020 (0.01) (0.02)

Vanadium 0.024 0.033 0.056 0.027 0.015 0.014 0.012 0.012 0.45 0.039 0.041

Zinc (<0.001)
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20

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

101.14 - Cast Steels, White Cast Irons, and Ductile Irons (disk form) 

These SRMs are for analysis of cast steels and cast irons by rapid instrumental methods.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

1138a 1139a 1173 C1137a C1145a C1173 C1290 C1291 C1292 C2424

Description >> Cast Steel

(No. 1)

Cast Steel

(No. 2)

Ni-Cr-Mo-V

Steel

White

Cast Iron

White

Cast Iron Cast Steel 3

High Alloy

(HC-250 + V)

High Alloy

(Ni-Hard, Type I)

High Alloy (NiHard, Type IV) Ductile Iron C

Unit of Issue >> disk disk disk disk disk disk disk disk disk disk

Elemental Composition (mass fraction in %)

Aluminum (0.067) (0.13) (0.007) (0.04) (0.005) (<0.01)

Arsenic (<0.005) (<0.005) (0.02) (0.02)

Boron (0.002)

Carbon 0.118 0.790 0.423 2.86 2.92 0.453 3.04 2.67 3.47 2.68

Cerium 0.016 0.0046

Chromium 0.13 2.18 2.70 0.643 0.63 2.63 30.5 2.78 11.4 0.13

Cobalt (0.064) 0.058 (0.064) (0.05)

Copper 0.09 0.47 0.204 0.192 0.46 0.204 0.065 0.26 0.36 0.125

Iron (98.7) (93.0)

Lanthanum 0.0011

Lead (0.0006)

Magnesium 0.032 0.006

Manganese 0.35 0.92 0.19 0.52 0.187 0.174 0.66 1.14 0.55 0.268

Molybdenum 0.05 0.51 1.50 0.86 0.48 1.46 (0.041) 0.32 0.25 0.019

Nickel 0.10 0.98 4.06 2.17 0.62 4.04 0.917 4.34 5.04 0.061

Niobium (0.045)

Phosphorus 0.035 0.012 0.033 0.087 0.215 0.031 0.030 0.028 0.049 0.041

Silicon 0.25 0.80 1.28 1.15 0.271 1.38 0.971 1.34 0.59 3.37

Sulfur 0.056 0.013 0.092 0.017 0.191 0.092 0.013 0.032 0.016 0.024

Titanium (0.0012) (0.004) (0.015) (0.04) 0.012 0.037 0.050

Vanadium 0.020 0.26 0.42 0.019 0.112 0.42 0.442 0.031 0.041 0.083
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Standard Reference Materials 

for Chemical Composition

102. NonFerrous Metals

21
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22

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

102.1 - Aluminum Base Alloys (chip and disk forms)

 These SRMs are intended for analyses of aluminum alloys by chemical and instrumental methods. SRMs 1710 through 1715 are specially prepared to include low levels of cadmium 

and lead encountered in the analysis of recycled aluminum. SRM 2426 is a hot-dip coating alloy for sheet steel applications.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

87a 853a 854a 855a 856a 858 1240c 1241c 1255b 1256b

Description >>

AluminumSilicon AlloyAluminum

Alloy 3004

Aluminum

Alloy 5182

Aluminum

Casting

Alloy 356

Aluminum

Casting

Alloy 380

Aluminum

Alloy 6011

Aluminum

Alloy 3004

Aluminum

Alloy 5182

Aluminum

Alloy 356

Aluminum

Alloy 380

Unit of Issue >> 75 g 40 g 40 g chip 30 g 30 g 35 g disk disk disk disk

Concentrations are expressed as mass fractions, in % (unless noted by an asterisk * for mg/kg).

Beryllium 0.000011

Cadmium (0.0006) 0.00065 (0.0006)

Calcium (0.001) (0.002)

Chromium 0.11 0.504 0.0340 0.013 0.060 0.0011 0.00054 0.0343 0.0150 0.0572

Copper 0.30 0.1504 0.0494 0.13 3.50 0.84 0.1484 0.0497 0.1161 3.478

Gallium 0.020 0.0176 0.0185 0.0181 0.0184 0.0175 0.0183

Iron 0.61 0.1990 0.14 0.85 0.078 0.501 0.1997 0.1170 0.865

Lead 0.093 0.019 0.11 (0.0009) 0.00052 0.0182 0.1075

Magnesium 0.37 1.092 4.474 0.37 0.063 1.01 1.110 4.498 0.3822

Manganese 0.26 1.251 0.3753 0.060 0.35 0.48 1.268 0.3792 0.0527 0.3857

Nickel 0.57 0.00429 0.0195 0.016 0.37 0.0006 0.00434 0.0198 0.0179 0.4135

Silicon 6.24 0.1810 0.1553 7.07 9.21 0.79 0.1804 0.1544 7.298 9.362

Strontium (0.0002) 0.018 0.018 (0.0002) 0.0164 0.0188

Tin 0.057 (0.0003) 0.010 0.10 (0.0004) (0.0002) 0.1334 0.0091

Titanium 0.18 0.0205 0.0335 0.15 0.065 0.042 0.0218 0.0317 0.1477 0.0877

Vanadium 0.01842 0.0174 (0.012) (0.014) 0.0030 0.01850 0.0316 0.0212

Zinc 0.16 0.0514 0.0505 0.085 0.96 1.04 0.0514 0.0506 0.0842 1.011

Zirconium 0.0023 (0.003) (0.003) 0.0023 (0.002)
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23

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

102.1 - Aluminum Base Alloys (chip and disk forms) (Cont.)

 These SRMs are intended for analyses of aluminum alloys by chemical and instrumental methods. SRMs 1710 through 1715 are specially prepared to include low levels of cadmium 

and lead encountered in the analysis of recycled aluminum. SRM 2426 is a hot-dip coating alloy for sheet steel applications.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

1258-I 1259 1710 1711 1712 1713 1714 1715 2426

Description >>

Aluminum

Alloy 6011

Aluminum

Alloy 7075

Aluminum

Alloy 3004

Aluminum

Alloy 3004

Aluminum

Alloy 3004

Aluminum

Alloy 5182

Aluminum

Alloy 5182

Aluminum

Alloy 5182

55 %

Aluminum -

Zinc Alloy

Unit of Issue >> disk disk disk disk disk disk disk disk 40 g chip

Concentrations are expressed as mass fractions, in % (unless noted by an asterisk * for mg/kg).

Beryllium 0.0025

Cadmium 0.000843 0.002090 0.0005165 0.000878 0.002013 0.00502 0.00502

Calcium 

Chromium 0.0011 0.173

Copper 0.848 1.60

Gallium (0.011) (0.022)

Iron 0.080 0.205 0.454

Lead 0.00177 0.00639 0.01559 0.001712 0.00653 0.01509 Al 58.18

Magnesium 1.00 2.48

Manganese 0.481 0.079

Nickel 0.0006 0.063

Silicon 0.80 0.18 1.925

Strontium

Tin 

Titanium 0.040 (0.04)

Vanadium

Zinc 1.03 5.44 38.92

Zirconium
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24

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

102.2 - Cobalt Base Alloys (chip and disk forms) 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. For specific values and 

uncertainties, the certificate is the only official source.

862 1242 1775 2175

Description >> High Temp.

Alloy L605

High Temp.

Alloy L-605

MP 35N

Refractory Alloy

MP 35N

Refractory Alloy

Unit of Issue >> 100 g disk disk 150 g

Concentrations are expressed as mass fractions, in % (unless noted by an asterisk * for mg/kg).

Aluminum (<0.01) (<0.01) 0.024 0.024

Boron (<0.0001) (<0.0001) 0.0097 0.0097

Carbon 0.120 0.126 0.0051 0.0051

Chromium 20.0 20.0 20.4 20.4

Cobalt 51.5 51.5 33.3 33.3

Copper 0.0010 0.0010 0.0046 0.0046

Iron 1.80 1.80 0.91 0.91

Manganese 1.59 1.58 0.0121 0.0121

Molybdenum 9.508 9.508

Nickel 9.74 9.78 34.91 34.91

Niobium (<0.005) (<0.005) 0.03 0.03

Nitrogen 0.026 0.026 0.002 0.002

Phosphorus 0.002 0.002 0.0006 0.0006

Silicon 0.017 0.016 0.02 0.02

Sulfur 0.0008 0.0007 0.013 0.0013

Tantalum (<0.01) (<0.01)

Tungsten 15.1 15.1 0.02 0.02

Vanadium 0.005 0.005 0.0095 0.0095
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25

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

102.3 - Copper Base Alloys (chip and rod forms) 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

158a 458 459 460 871 872 874 875 879 880 1034 1035

Description >>

Bronze, Silicon

BerylliumCopper

(17510)

BerylliumCopper

(17200)

BerylliumCopper

(17300)

Bronze,

Phosphor

(CDA 521)

Bronze,

Phosphor

(CDA 544)

Cupro-Nickel,

10%

(CDA 706)

Cupro-Nickel,

10%

(CDA 706)

Nickel Silver,

(CDA 762)

Nickel Silver,

(CDA 770)

Unalloyed

Copper

Leaded-Tin

Bronze Alloy

Unit of Issue >> 150 g 50 g 50 g 50 g 100 g 100 g 100 g 100 g 100 g 100 g rod 50 g

Concentrations are expressed as mass fractions, in % (unless noted by an asterisk * for mg/kg).

Aluminum 0.46 0.030 0.044 0.048 (<2*)

Antimony (<0.005) (<0.005) (<0.005) < 0.001 < 0.001 (0.2*)

Arsenic (<0.0006) (0.0010) (0.2*)

Beryllium 0.360 1.82

Bismuth <0.0002 0.003 (0.2*)

Cadmium <0.0002 0.0022 (<1*)

Carbon (0.0023) (0.0035)

Chromium 0.004 0.005 0.005 (0.3*)

Cobalt 0.076 0.221 (0.2*)

Copper 90.93 (97.9) (97.7) (97.5) 91.68 87.36 88.49 87.83 57.75 54.51 (99.96) (78.5)

Gold (<0.05*)

Hydrogen (0.0016) (0.004)

Iron 1.23 0.060 0.079 0.098 <0.001 0.003 1.22 1.45 0.0020 0.004 (2.0*) (0.001)

Lead 0.097 0.002 0.001 0.258 0.010 4.13 <0.0005 0.0092 0.002 0.002 (0.5*) (13.5)

Magnesium 0.003 0.007 (0.0002) (0.0010) (<1*)

Manganese 1.11 (<0.002) (<0.003) (<0.003) 0.0020 <0.0007 <0.001 <0.001 (< 0.1*)

Nickel 0.001 1.60 0.039 0.031 10.18 10.42 12.11 18.13 (0.6*)* (0.75)

Oxygen (0.06) (0.14) (363*) (0.64)

Phosphorus 0.026 0.082 0.26 0.002 0.0020 (0.004)

Selenium 0.00015 0.0004 (3.3*)

Silicon 3.03 0.035 0.077 0.77 (0.0006) (0.0008) (<2*)

Silver (<0.01) (<0.003) (<0.002) (8.1*)

Sulfur (<0.002) (<0.001) (0.0011) (0.0011) 2.8* 22.3*

Tellurium (<0.0001) (0.5*)

Tin 0.96 0.004 0.005 0.006 8.14 4.16 0.007 0.009 (<0.2*) (6.8)

Titanium (<0.002) (< 0.003) (0.0001) (<0.0002)

Zinc 2.08 0.002 0.002 0.004 0.025 4.0 0.002 0.11 30.04 27.3 (<11*) (0.25)

Zirconium (<0.002) (<0.002)

All values in % unless otherwise indicated. 

*Value is in mg/kg.
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26

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

102.4 - Copper Base Alloys (block and disk forms) 

The SRMs with a “C” prefix are chill-cast blocks, 31 mm square and 19 mm thick; the others are wrought disks, 31 mm in diameter and 19 mm thick. 

Both forms have nearly identical elemental compositions.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

1107 1110 1111 1112 1113 1114 1115 1116 1117 1124 1276a C1112 C1113 C1114 C1115 C1117

Description >>

Naval

Brass B

Red

Brass B

Red

Brass C

Gilding

Metal A

(disk)

Gilding

Metal B

(disk)

Gilding

Metal C

(disk)

Commercial

Bronze A

(disk)

Commercial

Bronze B

(disk)

Commercial

Bronze C

(disk)

Free Cutting

Brass

(UNS C36000)

Cupro-Nickel

(CDA 715)

Gilding

Metal A

(block)

Gilding

Metal B

(block)

Gilding

Metal C

(block)

Commercial

Bronze A

(block)

Commercial

Bronze C

(block)

Unit of Issue >> disk disk disk disk disk disk disk disk disk 1 disk disk disk disk disk disk disk

Concentrations are expressed as mass fractions, in % (unless noted by an asterisk * for mg/kg).

Antimony 232.5* 0.0004

Bismuth 202*

Cadmium 65.1* 0.0002

Chromium 155*

Cobalt (14*) 0.045

Copper 61.21 84.59 87.14 93.38 95.03 96.45 87.96 90.37 93.01 (62.5*) 67.8 93.38 95.03 96.45 87.96 93.01

Iron 0.037 0.033 0.010 0.070 0.043 0.017 0.13 0.046 0.014 0.2068 0.56 0.070 0.043 0.017 0.13 0.014

Lead 0.18 0.033 0.013 0.057 0.026 0.012 0.013 0.042 0.069 3.363 0.004 0.057 0.026 0.012 0.013 0.069

Magnesium 0.12

Manganese (9*) 1.01

Nickel 0.098 0.053 0.022 0.100 0.057 0.021 0.074 0.048 0.020 0.0801 30.5 0.100 0.057 0.021 0.074 0.020

Phosphorus 0.009 0.008 0.009 0.05 0.008 0.002 224* 0.006 0.009 0.008 0.009 0.05 0.002

Selenium 0.005

Silver 131*

Sulfur 31*

Tin 1.04 0.051 0.019 0.12 0.064 0.027 0.10 0.044 0.021 0.3112 0.023 0.12 0.064 0.027 0.10 0.021

Zinc 37.34 15.20 12.81 6.30 4.80 3.47 11.73 9.44 6.87 35.19 0.038 6.30 4.80 3.47 11.73 6.87
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27

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

102.5 - Copper “Benchmark” (block, chip, and rod forms) 

SRMs with a “C” prefix are chill-cast blocks approximately 32 mm square and 19 mm thick.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

399 400 454 457 494 495 498 499 500 C1251a C1253a C1252a

Description >> Unalloyed

Copper VI (chips)

Unalloyed

Copper VII (chips)

Unalloyed

Copper XI (chips)

Unalloyed

Copper IV (solid)

Unalloyed

Copper I (solid)

Unalloyed

Copper II (solid)

Unalloyed

Copper V (solid)

Unalloyed

Copper VI (solid)

Unalloyed

Copper VII (solid)

Phosphorus

Copper Cu VIII

Phosphorus

Copper X

Phosphorus

Copper Cu IX

Unit of Issue >> 50 g 50 g 35 g rod rod rod rod rod rod block block block

Values are expressed in mass fraction units of mg/kg (unless otherwise specified)

Aluminum (<2) (<2) (<2) (<2) (<2) (<2) (<2) (<2) (<20) 176 (<20)

Antimony 30 102 24 0.2 4.5 8.0 7.4 30 102 14.9 139 42

Arsenic 47 140 46 0.2 2.6 1.6 25 47 140 16 436 118

Beryllium

Bismuth 10.5 24.5 19 0.2 0.35 0.50 2.0 10.5 24.5 3.7 (56) (19)

Boron

Cadmium (<1) (<1) (<1) (0.5) (0.4) (<22) (<1) (<1) (<3) 70 16.9

Calcium 

Chromium (0.5) (0.5) (0.3) 2.0 6.0 (0.3) (0.5) (0.5) (3) 260 19

Cobalt 0.5 0.6 (4) (0.2) 0.5 2.7 0.5 0.6 13.2 454 87

Copper (Cu) 99.79* 99.70* 99.84* 99.96* 99.908* 99.944* 99.98* 99.79* 99.70* 99.89* 99.46* 99.87*

Gold (4) (10) 7.5 (<0.05) (0.07) (0.13) (0.1) (4) (10) 15.5 72 33.9

Iron 20.0 41 (50) 2.0 147 96 11 20.0 41 285 290 72

Lead 114 128 66 0.5 26.5 3.25 10 114 128 23.5 243 60

Lithium 

Magnesium (<1) (<1) (<1) (<1) (<1) (<1) (<1) (<1) (<20) (150) (<20)

Manganese (0.3) (0.2) <0.1 3.7 5.3 (0.3) (0.3) (0.2) 4.6 357 43

Nickel 506 603 (150) 0.6 11.7 5.4 7.0 506 603 23.6 491 128

Palladium (0.1)

Phosphorus 420 561 125

Selenium 95 214 479 4.2 2.00 0.63 17.5 95 214 11 136 56

Silicon (<2) (<2) (<2) (<2) (<2) (<2) (<2) (<2) (<50) (580) (<100)

Silver 117 181 286 8.1 50.5 12.2 20.1 117 181 80 494 158

Sulfur (10) (9) (4) 15 13 (11) (10) (9) (35) (50) (70)

Tellurium 50 153 27 0.29 0.58 0.32 10.1 50 153 16 168 54.6

Tin (~90) (~200) 2.2 <0.2 70 1.5 5 (~90) (~200) 16 499 120

Titanium

Zinc 45 114 7 <11 405 12.2 25 45 114 24 329 69.4

Zirconium

* Mass fraction in %
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28

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

102.10 - Lead Base Alloys (disk and powder forms) [150 g units (unless otherwise noted)]

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

53e 127b 1129 1131 1132 1727

Description >> Bearing Metal

(84Pb-10Sb-6Sn)

Solder,

40Sn-60Pb

Solder

(63Sn-37Pb)

Solder

(60Pb-40Sn)

Bearing Metal

(Pb-Sn) Anode Tin

Unit of Issue >> 150 g 150 g 200 g disk disk block

Concentrations are expressed as mass fractions, in % (unless noted by an asterisk * for mg/kg).

Antimony 10.26 0.43 0.13 0.43 10.26 (40*)

Arsenic 0.057 0.01 0.055 0.01 0.057 (<100*)

Bismuth 0.052 0.06 0.13 0.06 0.052 (8*)

Cobalt (2*)

Copper 0.054 0.011 0.16 0.011 0.054 (4*)

Indium (20*)

Iron <0.001 <0.001 (20*)

Lead 33.26*

Nickel 0.003 0.012 0.010 0.012 0.003 (3*)

Silver 0.01 0.075 0.01

Tin 5.84 39.3 62.7 39.3 5.84
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29

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

102.11 - Lead Base Material (disk form) 

These SRMs are issued in the form of disks, 50 mm in diameter and 16 mm thick. They are intended for use with optical emission spectrometric methods of analysis.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

C2415 C2416 C2417 C2418

Description >> Battery Lead Bullet Lead Lead-Base Alloy High-Purity Lead

Unit of Issue >> disk disk disk disk

Concentrations are expressed as mass fractions, in % (unless noted by an asterisk * for mg/kg).

Aluminum (<0.0003) (<0.0001) (<0.0001) (<0.0001)

Antimony 2.95 0.79 0.010 (<0.0001)

Arsenic 0.20 0.056 0.011 (<0.0001)

Bismuth 0.054 0.10 0.010 (<0.0005)

Cadmium 0.002 (0.0002) (<0.0002) 0.0003

Calcium (<0.001) <0.001 (<0.001) (<0.0005)

Cobalt (<0.0002) (<0.0002) (<0.0005)

Copper 0.095 0.065 0.010 (<0.0001)

Iron <0.001 (<0.0005) (<0.0003) (<0.0005)

Manganese <0.001 (<0.0005) (<0.0003) (<0.0005)

Nickel <0.001 (<0.0005) (<0.0005) (<0.0005)

Silver 0.002 0.0044 0.010 0.0001

Sulfur 0.0026 0.0015 (<0.0005)

Tellurium 0.0045 (<0.0005) (<0.0005) (<0.0005)

Tin 0.33 0.09 (<0.010) (<0.0005)

Zinc <0.001 (<0.0005) (<0.0005) (<0.0005)
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30

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

102.12 - Nickel Base Alloys (chip and disk forms) 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

349a 861 864 865 882 1159 1160 1243 1244 1249 1775 2175 C1248 C2402

Description >>

Waspaloy

Nickel-based

Superalloy

Inconel

600

Inconel

625

Alloy

Ni-Cu-Al

Elec/Mag

Ni-Fe

Elec/Mag

Ni-Mo-Fe Waspaloy

Inconel

600

Nickel-based

Superalloy

MP 35N

Refractory

Alloy

MP 35N

Refractory

Alloy

NickelCopper

Alloy Hastelloy7C

Unit of Issue >> 150 g 50 g 100 g 150 g 100 g disk disk disk disk disk disk 150 g disk disk

Concentrations are expressed as mass fractions, in % (unless noted by an asterisk * for mg/kg).

Aluminum 1.23 0.252 0.21 2.85 1.23 0.252 0.5682 0.024 0.024 0.009

Antimony 0.00030

Arsenic 19.0* 19.0* 0.0013

Boron 0.005 28.3* <0.001 0.005 28.3* 0.0023 0.0097 0.0097 (0.0004)

Carbon 0.035 0.063 0.037 0.006 0.007 0.019 0.024 0.063 0.0380 0.0051 0.0051 0.266 0.010

Chromium 19.3 15.74 21.9 0.06 0.05 19.20 15.74 18.472 20.4 20.4 0.095 16.15

Cobalt 12.46 0.0602 0.072 0.022 0.054 12.46 0.0602 0.3371 33.3 33.3 1.50

Copper 0.007 0.255 0.36 31.02 0.038 0.021 0.007 0.255 0.1402 0.0046 0.0046 29.80 0.19

Gallium (0.012) 0.0019

Iron 1.15 9.63 4.5 0.009 51.0 14.3 0.79 9.63 17.693 0.91 0.91 2.10 7.3

Lead 2.27* 2.27* 3.8*

Magnesium 138.3* 138.3* 0.0012

Manganese 0.019 0.288 0.18 0.0007 0.305 0.550 0.019 0.288 0.109 0.0121 0.0121 0.31 0.64

Molybdenum 4.25 0.204 8.6 0.010 4.35 4.25 0.204 3.112 9.508 9.508 0.006 17.1

Nickel 58.1 73.09 59.5 65.25 48.2 80.3 58.78 73.09 53.29 34.91 34.91 65.75 51.5

Niobium (0.05) 0.126 3.5 0.126 5.196 (0.03) (0.03) (<0.01)

Nitrogen (0.01) (0.01) (0.002) (0.002)

Phosphorus 0.003 0.001271 0.011 0.012 0.003 0.003 0.003 0.011 0.0134 0.0006 0.0006 0.002 0.007

Silicon 0.018 0.114 0.41 0.006 0.32 0.37 0.018 0.114 0.120 (0.02) (0.02) 1.61 0.85

Sulfur 0.0024 0.0000561 0.0028 0.001 0.0014 0.003 0.001 0.0018 0.0028 0.00064 0.0013 0.0013 0.0008 0.018

Tantalum 0.0027

Thallium 0.0029* 0.0029*

Tin 7.4* 7.4* 0.0024 1.1* (0.001)

Titanium 3.06 0.251 0.28 0.57 3.06 0.251 0.959

Tungsten (0.06) 0.0846 (0.02) (0.02) 4.29

Vanadium 0.12 0.0327 0.12 0.0327 0.0338 0.0095 0.0095 0.22

Zinc 3*

Zirconium 3.7* 3.7* 0.0029
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31

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

102.13 - Trace Elements in Nickel Base Superalloys (chip form) 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

897 898 899

Description >> Tracealloy A Tracealloy B Tracealloy C

Unit of Issue >> 35 g 35 g 35 g

Concentrations are expressed as mass fractions, in % (unless noted by an asterisk * for mg/kg).

Aluminum (2.0) (2.0) (2.0)

Bismuth (0.5*) (1.0) (0.3)

Boron (0.010) (0.010) (0.010)

Carbon (0.12) (0.12) (0.12)

Chromium (12.0) (12.0) (12.0)

Cobalt (8.5) (8.5) (8.5)

Hafnium (1.2) (1.2) (1.2)

Lead 11.7* 2.5* 3.9*

Nickel (Bal) (Bal) (Bal)

Niobium (0.9) (0.9) (0.9)

Selenium 9.1* 2.00* 9.5*

Tantalum (1.75) (1.75) (1.75)

Tellurium 1.05* 0.54* 5.9*

Thallium 0.51* 2.75* 0.252*

Titanium (2.0) (2.0) (2.0)

Tungsten (1.75) (1.75) (1.75)

Zirconium (0.10) (0.10) (0.10)
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32

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- Reference values are italicized

- Values in parentheses are for information only

102.14 - Nickel Oxides (powder form) 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

671 672 673

Description >> Nickel Oxide 1 Nickel Oxide 2 Nickel Oxide 3

Unit of Issue >> 25 g 25 g 25 g

Concentrations are expressed as mass fractions, in % (unless noted by an asterisk * for mg/kg).

Aluminum 0.009 0.004 0.001

Antimony* (0.4) (0.5) (<0.5)

Arsenic* (59) (74) (0.4)

Bismuth* 0.07 0.3 0.06

Cadmium* (0.7) (1.7) (0.5)

Chromium 0.025 0.003 0.0003

Cobalt 0.31 0.55 0.016

Copper 0.20 0.018 0.002

Gallium* (0.8) (0.4) (<0.1)

Iron 0.39 0.079 0.029

Magnesium 0.030 0.020 0.003

Manganese 0.13 0.095 0.0037

Palladium* 16 38 3.5

Selenium* 2.0 0.40 0.2

Silicon 0.047 0.11 0.006

Silver* (0.5) (0.3) (<0.1)

Tellurium* (<0.2) (<0.2) (0.4)

Thallium* (<0.1) (<0.1) (<0.1)

Tin* (2.7) (4) (<0.5)

Titanium 0.024 0.009 0.003

Zinc* (160) (140) (1.7)
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33

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

102.15 - Tin Base Alloys 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. For specific values and 

uncertainties, the certificate is the only official source.

54d 1727 1728 1729

Description >> Bearing Metal (Tin Base) Anode Tin Tin Alloy (Sn-3Cu-0.5Ag) Tin Alloy (97Sn-3Pb)

Unit of Issue >> 170 g block 1 disk 1 disk

Concentrations are expressed as mass fractions, in % (unless noted by an asterisk * for mg/kg).

Aluminum (12) 460*

Antimony 7.04 (40*) 87* 96.4*

Arsenic 0.088 (<100*) 96*

Bismuth 0.044 (8*) 128* 114.7*

Cadmium 58.2*

Chromium 1.2*

Cobalt (2*) 57*

Copper 3.62 (4*) 3.06 24*

Indium (20*) 31*

Iron 0.027 (20*) 111* 14.1*

Lead 0.62 33.26* 544* 3.11

Mercury 111.98*

Nickel 0.0027 (3*) 81.7* 2.2*

Phosphorus (10*)

Silicon (45*) (20)*

Silver 0.0032 0.4591 (<75*)

Sulfur 34.9*

Tin 88.57 (96.3*) 96.9

Zinc (156*) 518*
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34

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

102.16 - Titanium Base Alloys (chip, cube and disk forms) 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

173c 641 642 643 647 648 649 650 654b

Description >> Titanium Alloy

(6Al-4V)

Titanium Alloy,

8 Mn (A)

Titanium Alloy,

8 Mn (B)

Titanium Alloy,

8 Mn (C)

Titanium Alloy,

Al-Mo-Sn-Zr

Titanium Alloy,

Al-Sn-Zr-Cr-Mo

Titanium Alloy,

V-Al-Cr-Sn

Unalloyed

Titanium A

Titanium Alloy,

Al-V

Unit of Issue >> 50 g disk disk disk 50 g 50 g 50 g 30 g disk

Concentrations are expressed as mass fractions, in % (unless noted by an asterisk * for mg/kg).

Aluminum 6.245 5.88 5.13 3.08 <0.01 6.34

Boron (<0.0005)

Carbon 0.027 0.006 0.011 0.011

Chromium 0.0165 3.84 2.96 0.002 0.025

Cobalt (0.002)

Copper 0.0040 (<0.001) 0.033 0.008

Hydrogen (0.006) (0.002)

Iron 0.2130 0.075 0.15 0.133 0.024 0.23

Manganese (0.002) 6.68 9.08 11.68 (<0.01) 0.016

Molybdenum 0.0068 1.96 3.75 0.002 0.013

Nickel 0.0203 0.028

Niobium 

Nitrogen 0.028 (<0.01) (0.01) (0.01)

Oxygen 0.164 (0.17)

Ruthenium (0.0006)

Silicon 0.019 0.027 0.004 0.045

Sulfur (0.001)

Tin 0.010 2.02 1.98 3.04 0.03 0.023

Titanium 89.15

Tungsten (0.002) 1.55

Vanadium 4.154 (<0.02) 15.1 0.009 4.31

Zirconium 0.0053 3.90 1.84 0.008
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35

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- Reference values are italicized

- Values in parentheses are for information only

102.16 - Titanium Base Alloys (chip, cube, and disk forms) (Cont.)

1128 2061 2062 2431 2432 2433 2452 2453 2454

Description >> Ti Alloy,

V-Al-Cr-Sn

Ti Alloy,

Al-Nb-W

Ti Alloy, 

Al-Nb-W

Titanium

Base Alloy

Titanium

Base Alloy

Titanium

Alloy

Hydrogen In

Titanium Alloy

Hydrogen In

Titanium Alloy

Hydrogen In

Titanium Alloy

Unit of Issue >> disk cube disk 50 g 50 g 50 g 10 g 10 g 10 g

Concentrations are expressed as mass fractions, in % (unless noted by an asterisk * for mg/kg).

Aluminum 3.06 30.31 30.31 5.73 3.15 7.63

Boron (<0.001)

Carbon 0.011 0.006 0.008

Chromium 2.96 (<0.01) (<0.01)

Cobalt 

Copper (<0.003) (<0.01) (<0.005)

Hydrogen 0.00625 0.0114 0.0211

Iron 0.134 0.056 1.77 0.063

Manganese (<0.01) (<0.01) (<0.01)

Molybdenum (0.006) 6.01 0.99

Nickel (<0.01) (<0.01)

Niobium 10.78 10.78

Nitrogen (0.01) (0.004) (0.004)

Oxygen (0.232) (0.232)

Ruthenium 

Silicon 0.088 0.029

Sulfur

Tin 3.04 1.98

Titanium 53.92 53.92

Tungsten 4.38 4.38 (<0.001) (<0.001)

Vanadium 15.13 (<0.01) 10.00 0.98

Zirconium 4.06 (<0.01)
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36

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- Reference values are italicized

- Values in parentheses are for information only

102.17 - Zinc Base Alloys (block, chip and disk forms) 

SRM 1736 through 1742 and SRM 2139 are specially prepared alloys primarily intended for use with spectrometric methods of analysis.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. For specific values and 

uncertainties, the certificate is the only official source.

94c 625 626 627 628 629 630 631 1736

Description >> Zinc-Base Die

Casting Alloy Zinc-Base A Zinc-Base B Zinc-Base C Zinc-Base D

Zinc-Base

E-ASTM AC 41A Zinc-Base F

Zinc Spelter

(mod.)

Zinc-Aluminum

Alloy

Unit of Issue >> 150 g block block block block disk block block disk

Concentrations are expressed as mass fractions, in % (unless noted by an asterisk * for mg/kg).

Aluminum 4.13 3.06 3.56 3.88 4.59 5.15 4.30 0.50 0.3076

Cadmium 0.002 0.0007 0.0016 0.0051 0.0040 0.0155 0.0048 0.0002

Calcium <0.001

Chromium 0.0128 0.0395 0.0038 0.0087 0.0008 0.0031 0.0001

Copper 1.01 0.034 0.056 0.132 0.611 1.50 0.976 0.0013

Gallium (0.002)

Germanium (0.0002)

Indium 0.0023

Iron 0.018 0.036 0.103 0.023 0.066 0.017 0.023 0.005

Lead 0.006 0.0014 0.0022 0.0082 0.0045 0.0135 0.0083 (0.001) 0.0029

Magnesium 0.042 0.070 0.020 0.030 0.0094 0.094 0.030 (<0.001)

Manganese 0.014 0.031 0.048 0.014 0.0091 0.0017 0.0106 0.00015

Nickel 0.006 0.0184 0.047 0.0029 0.030 0.0075 0.0027 (<0.0005)

Silicon 0.017 0.042 0.021 0.008 0.078 0.022 (0.002)

Silver (<0.0005)

Tin 0.006 0.0006 0.0012 0.0042 0.0017 0.012 0.0040 0.0001

Zinc
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37

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- Values in parentheses are for information only

102.17 - Zinc Base Alloys (chip and disk forms) (Cont.)

1737 1738 1739 1740 1741 1742 2139 2426

Description >> Zinc-Aluminum

Alloy

Zinc-Aluminum

Alloy

Zinc-Aluminum

Alloy

Zinc-Aluminum

Alloy

Zinc-Aluminum

Alloy

Zinc-Aluminum

Alloy

Zinc-Aluminum

Alloy

55 % Aluminum -

Zinc Alloy

Unit of Issue >> disk disk disk disk disk disk 100 g 40 g

Concentrations are expressed as mass fractions, in % (unless noted by an asterisk * for mg/kg).

Aluminum 0.6302 0.1014 0.2049 0.4177 0.5242 0.7917 0.2042 58.18

Cadmium 

Calcium 

Chromium

Copper 

Gallium 

Germanium 

Indium 

Iron 0.454

Lead 0.0029 0.0101 0.0302 0.0691 0.1571 (0.0029) 0.0302

Magnesium 

Manganese

Nickel

Silicon 1.925

Silver

Tin 

Zinc 38.92
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102.18 - Zirconium Base Alloys (chip form) 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

360b

Description >> Zirconium (Sn-Fe-Cr) Alloy

Unit of Issue >> 100 g

Concentrations are expressed as mass fractions, in % (unless noted by an asterisk * for mg/kg).

Aluminum 57*

Antimony (1*)

Arsenic (7*)

Boron 0.191*

Cadmium (<1*)

Carbon 109*

Chlorine (<1*)

Chromium 1043*

Cobalt 0.97*

Copper 12.5*

Fluorine (<10*)

Gallium (<1*)

Hafnium 78.5*

Hydrogen (11*)

Iron 2138*

Lead (<5*)

Magnesium (<1*)

Manganese 9.2*

Molybdenum (<25*)

Nickel 22.5*

Niobium (<50*)

Nitrogen 45*

Oxygen (1430*)

Phosphorus 8.7*

Silicon 80*

Sulfur (30*)

Tantalum (<100*)

Tin 1.555 %

Titanium 15.5*

Tungsten (<50*)

Uranium (<2*)

Vanadium (<30*)

Zinc (<50*)
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Standard Reference Materials 

for Chemical Composition

103. Microanalysis

39
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- Values in parentheses are for information only

103.1 - Metals (rod, wire, disk, and cube forms) 

See Table 104.4 Microchemistry and Table 101.8 Low Alloy Steels

For further information see SP 260-28

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

480 481 482 2061 2062

Description >> Tungsten-Molybdenum EPMA Gold-Silver EPMA Gold-Copper EPMA Ti Alloy, Al-Nb-W Ti Alloy, Al-Nb-W

Unit of Issue >> disk set (6) set (6) cube disk

Elemental Composition (mass fraction in %)

Au-0% Cu B 80.15

Aluminum 30.31 30.31

Au 100 F Ag 100.00

Au-0% Cu B 19.83

Au-20% Ag B 80.05

Au-20% Ag B Ag 19.96

Au-40% Ag C 60.05

Au-40% Ag C Ag 39.92

Au-40% Cu C 60.36

Au-40% Cu C Cu 39.64

Au-60% Ag 40.03

Au-60% Ag Ag 59.93

Au-60% Cu 40.10

Au-60% Cu Cu 59.92

Au-80% Ag E 22.43

Au-80% Ag E Ag 77.58

Au-80% Cu E 20.12

Au-80% Cu E Cu 79.85

Cu 100 F 100.00

Gold 100.00 100.00

Molybdenum 21.5

Niobium 10.78 10.78

Titanium 53.92 53.92

Tungsten 78.5 4.38 4.38
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103.2 - Synthetic Glasses for Microanalysis (rod and microsphere forms) 

The glass SRMs listed below are suitable for microanalysis, such as electron probe microanalysis (EMPA) secondary ion mass spectrometry 

(SIMS) and other methods that require high homogeneity.

For futher information see SP 260-112

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs.

For specific values and uncertainties, the certificate is the only official source.

1872 1873 2066

Description >> Synthetic Glass Synthetic Glass K-411 Glass Microspheres

Unit of Issue >> set (3) set (3) 50 mg

Concentrations are expressed as mass fractions, in % (unless noted by an asterisk * for mg/kg).

Aluminum (1 level)

Calcium 11.2

Cerium (1 level)

Chromium (1 level)

Europium (1 level)

Germanium 3 levels

Iron (1 level) 11.2

Lead 3 levels

Magnesium (1 level) 9.2

Nickel (1 level)

Oxygen (3 levels) 42.9

Phosphorus (1 level)

Silicon (1 level) 25.6

Tantalum (1 level)

Thorium (1 level)

Titanium (2 levels)

Uranium (1 level)

Zirconium (2 levels)
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103.3 - Thin Film for Transmission Electron Microscope 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. For specific values and 

uncertainties, the certificate is the only official source.

2063a

Description >> Mineral Glass

(Thin Film)

Unit of Issue >> 3mm grid

Argon (0.4)

Calcium 11.82

Iron 11.06

Magnesium 7.97

Oxygen 43.2

Silicon 25.34
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103.4 - Semiconductor Thin Film for the Composition of Thin Films 

Standard Reference Material SRM 2841 is intended for use as a reference standard for analytical methods that measure the composition of thin films, such as electron microprobe 

analysis (EMPA), photoluminesence (PL), auger electron spectroscopy (AES) and X-ray photoelectron spectroscopy (XPS). The SRM consists of an epitaxial layer of ALxGa1-xAs, 3μm 

thick, on a 1 cm x 1 cm square of GaAs substrate. The semiconductor chip is attached with carbon tape to a 2.5 cm diameter stainless steel disk for labeling and handling.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. For specific values and 

uncertainties, the certificate is the only official source.

2841 2842 8095

Description >> Semiconductor Thin Film: 

AlxGa1-xAs Epitaxial Layers

Semiconductor Thin Film:

AlxGa1-xAs Epitaxial Layers Si1-xGex Films on Si

Unit of Issue >> disk disk 2 wafers, 1 each level

Al ( x in Alx Ga1-x As) 0.20 0.30 2 levels
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103.5 - Nanomaterials: Composition 

For related materials see Table 301.1 Particle Size (powder and solid forms)

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. For specific values and 

uncertainties, the certificate is the only official source.

2483

Description >> Single-Wall Carbon

Nanotubes (Raw Soot)

Unit Size >> 250 mg

Aluminum 723

Arsenic (12.5)

Barium 119.0

Boron (74.7)

Calcium (0.303*)

Carbon (94.6*)

Cesium 192.7

Chlorine 0.2125*

Cobalt 0.963*

Copper (186)

Dysprosium 8.36

Europium 2.27

Gadolinium 10.57

Hafnium (0.38*)

Lanthanum 104.0

Magnesium 0.1150*

Manganese 4.482

Molybdenum 3.406*

Samarium 13.09

Sodium 0.1187

Thorium 25.7

Tungsten 7.50

Vanadium 6.89
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Standard Reference Materials 

for Chemical Composition

104. High-Purity Materials

45
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46

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- Values in parentheses are for information only

104.1 - High Purity Metals (solid forms) 

These SRMs are for determining impurity elements in high purity metals.

For further information see SP 260-86

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. For specific values and 

uncertainties, the certificate is the only official source.

680A-L1 682 683 685r 726 728 885

Description >> High Purity Platinum High Purity Zinc Zinc, Metal High Purity Gold (Rod) Selenium, Inter-Purity Zinc, Intermediate Purity Refined Copper

Unit of Issue >> 10 cm block block rod 15g 450 g 450 g 200 g

Concentrations are in mass fractions, in mg/kg (ppm), unless noted as %

Aluminum <1

Antimony <0.0002 %

Arsenic <2 <0.0002 %

Bismuth <0.0001 %

Boron <1

Cadmium (0.1) 1.1 1.14

Calcium <1

Chromium <1

Copper 0.1 0.042 5.9 0.1 <1 5.68

Gold <1 (<0.02)

Indium 0.007 (<0.0005)

Iridium <0.01 (<0.005)

Iron 1.3 (0.1) 2.2 0.2 1 1.84 <0.0005 %

Lead <1 11.1 <1 11.13 0.0002 %

Magnesium <1 (<0.1) (<0.2) <1 (<0.001)

Manganese <0.3

Molybdenum <0.3

Nickel <1 (<0.1) (<0.05) <0.5 (0.45) <0.0001 %

Oxygen 4 (<0.5) (<2) 0.031 %

Palladium 0.2 (<0.05)

Rhodium <0.2 (<0.05)

Silver <0.1 (0.02) 1.3 [0.1] <1 1.08 0.0005 %

Sulfur 12 0.0018 %

Tellurium 0.3

Thallium (0.2) 0.2

Tin (0.02) (0.02) (<0.07) <1 0.02 <0.0001 %

Zinc <0.0001 %

Zirconium <0.1 (<0.01)
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104.3 - Stoichiometry (powder form) 

These SRMs are defined as primary, working, and secondary standards in accordance with recommendations of the Analytical Chemistry Section of the 

International Union of Pure and Applied Chemistry [Ref. Analyst 90, 251 (1965)]. These definitions are as follows:

Primary Standard: a commercially available substance of purity 100 ± 0.02% (Purity 99.98 + %).

Working Standard: commercially available substance of purity 100 ± 0.05% (Purity 99. 95 + %). 

Secondary Standard: a substance of lower purity which can be standardized against a primary grade standard.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

17f 83d 84l 136f 350b 351a 723e 917c 973 999b 8040

Description >>

Sucrose

Optical

Rotation

Arsenic

Trioxide

(Reductometric)

Potassium

Hydrogen

Phthalate

Potassium

Dichromate,

(Oxidimetric

Standard)

Benzoic

Acid

(Acidimetric)

Sodium

Carbonate

Tris

Acidimetric

D-Glucose

(Dextrose)

Boric Acid

Acidimetric

Standard

Potassium

Chloride

(Primary

Chemical)

Sodium

Oxalate

(Reductometric)

Unit of Issue >> 60 g 60 g 60 g 60 g 30 g 50 g 50 g 50 g 100 g 30 g 60 g

Chloride Cl 47.5519

Intended Use Optical Rotation Reductometric 

Standard

Acidimetric 

Standard

Oxidimetric 

Standard

Acidimetric 

Standard

Acidimetric 

Standard

Purity Optical 

Rotation

Acidimetric 

Value

Reductometric 

Standard

Potassium Chloride 

KCl

99.977

Potassium K 99.97 52.4379

Stoichiometeric Purity 

(mass fraction %)

99.956 99.9926 99.9934 99.9954 99.9978 99.970 99.7 100.009 99.951
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- Values in parentheses are for information only

104.4 - Microchemistry (powder form) 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

141d 142 143d 148 2141 2143 2144

Description >> Acetanilide Anisic Acid Cystine Nicotinic Acid Urea p-Fluorobenzoic Acid m-Chlorobenzoic Acid

Unit of Issue >> 2 g 2 g 2 g 2 g 2 g 2 g 2 g

Carbon 71.089 29.99 58.54

Chlorine 22.62

Fluorine 13.54

Hydrogen 6.711 5.03 4.09

Methoxyl 20.40

Nitrogen 10.363 11.66 11.38 46.63

Oxygen 11.837 26.63

Sulfur 26.69
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104.5 - Spectrometry, Single Element Standard Solutions 

These SRMs are intended as standard solutions for calibrating instruments used in atomic spectrometry, including atomic absorption spectrophotometry, inductively coupled plasma 

optical emission spectrometry, and inductively coupled plasma mass spectrometry. They can also be used in conjunction with any other analytical technique or procedure where 

standard solutions are required. Each SRM is a single element solution of 50 mL with a nominal concentration of 10 mg/g, except where indicated. Each unit is provided in either a 

single high density polyethylene bottle or in 5 x 10 mL borosilicate glass ampoules. NOTE: The certified values for SRM standard solution lots produced after March 1997 are stated 

in mass units, mg/g, rather than mg/mL. For the convenience of the user, each certificate provides instructions for preparing SRM dilutions by volume as well as by mass. Commercial 

Producers of Elemental Standard Solutions: Instructions and a spreadsheet have been designed as an aid for establishing traceability of a batch of an elemental solution to the 

corresponding elemental spectrometric solution from the NIST SRM 3100 Series. Spreadsheet with ICP-OES example data is also included. When all required input fields are filled, the 

spreadsheet will calculate the traceable mass fraction and uncertainty of the batch elemental solution standard. The uncertainty provided by the spreadsheet assumes that the tested 

lot is stable. Any uncertainty due to changes over time to the lot tested, need to be quantified by the producer of the lot, and incorporated into the total uncertainty of the lot. 

Instructions: http://www.nist.gov/mml/csd/inorganic/upload/SRM-3100_Version-1-2-Instructions.pdf

Spreadsheet: http://www.nist.gov/mml/csd/inorganic/upload/SRM-3100_Traceability-Tool-Version-1-2.xls

Sample Data: http://www.nist.gov/mml/csd/inorganic/upload/SRM-3100_Example-Data-Set-for-Traceability-Tool-Version-1-2.xls

SRMs marked by an asterisk (*) are subject to license requirement by the NRC (or Agreement State) for transfer within the United States (U.S.). License certification is required of 

purchaser by NIST prior to shipment.

When an import permit for radioactive material is required of a customer outside the U.S., NIST must have a copy to complete an order and facilitate shipment.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. For specific values and 

uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Nominal Acid Concentration of Matrix NRC License or Equivalent Required*

3101a Aluminum (Al) Standard Solution 50 mL HNO3 10% --

3102a Antimony (Sb) Standard Solution 50 mL HNO3 10% + HF 2% --

3103a Arsenic (As) Standard Solution 50 mL HNO3 10% --

3104a Barium (Ba) Standard Solution 50 mL HNO3 10% --

3105a Beryllium (Be) Standard Solution 5 x 10 mL HNO3 10% --

3106 Bismuth (Bi) Standard Solution 5 x 10 mL HNO3 10% --

3107 Boron (B) Standard Solution (nominal 5 mg/g) 50 mL H2O --

3108 Cadmium (Cd) Standard Solution 50 mL HNO3 10% --

3109a Calcium (Ca) Standard Solution 5 x 10 mL HNO3 10% --

3110 Cerium (Ce) Standard Solution 5 x 10 mL HNO3 10% --

3111a Cesium (Cs) Standard Solution 50 mL HNO3 1% --

3112a Chromium (Cr) Standard Solution 5 x 10 mL HNO3 10% --

3113 Cobalt (Co) Standard Solution 5 x 10 mL HNO3 10% --

3114 Copper (Cu) Standard Solution 5 x 10 mL HNO3 10% --

3115a Dysprosium (Dy) Standard Solution 5 x 10 mL HNO3 10% --

3116a Erbium (Er) Standard Solution 5 x 10 mL HNO3 10% --

3117a Europium (Eu) Standard Solution 5 x 10 mL HNO3 10% --
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104.5 - Spectrometry, Single Element Standard Solutions (Cont.)

SRM Description Unit of Issue Nominal Acid Concentration of Matrix NRC License or Equivalent Required*

3118a Gadolinium (Gd) Standard Solution 5 x 10 mL HNO3 10% --

3119a Gallium (Ga) Standard Solution 5 x 10 mL HNO3 10% --

3120a Germanium (Ge) Standard Solution 50 mL HNO3 10% + HF 2% --

3121 Gold (Au) Standard Solution 5 x 10 mL HCl 10% --

3122 Hafnium (Hf) Standard Solution 50 mL HNO3 10% + HF 2% --

3123a Holmium (Ho) Standard Solution 5 x 10 mL HNO3 10% --

3124a Indium (In) Standard Solution 5 x 10 mL HNO3 10% --

3126a Iron (Fe) Standard Solution 50 mL HNO3 10% --

3127a Lanthanum (La) Standard Solution 5 x 10 mL HNO3 10% --

3128 Lead (Pb) Standard Solution 5 x 10 mL HNO3 10% --

3129a Lithium (Li) Standard Solution 5 x 10 mL HNO3 1% --

3130a Lutetium (Lu) Standard Solution 5 x 10 mL HNO3 10% --

3131a Magnesium (Mg) Standard Solution 50 mL HNO3 10% --

3132 Manganese (Mn) Standard Solution 5 x 10 mL HNO3 10% --

3133 Mercury (Hg) Standard Solution 5 x 10 mL HNO3 10% --

3134 Molybdenum (Mo) Standard Solution 5 x 10 mL HCl 10% --

3135a Neodymium (Nd) Standard Solution 5 x 10 mL HNO3 10% --

3136 Nickel (Ni) Standard Solution 5 x 10 mL HNO3 10% --

3137 Niobium (Nb) Standard Solution 50 mL HNO3 10% + HF 2% --

3138 Palladium (Pd) Standard Solution 5 x 10 mL HCl 10% --

3139a Phosphorus (P) Standard Solution 5 x 10 mL HNO3 0.8% --

3140 Platinum (Pt) Standard Solution 5 x 10 mL HCl 10% --

3141a Potassium (K) Standard Solution 50 mL HNO3 1% --

3142a Praseodymium (Pr) Standard Solution 5 x 10 mL HNO3 10% --

3143 Rhenium (Re) Standard Solution 5 x 10 mL HNO3 10% --

3144 Rhodium (Rh) Standard Solution (nominal 1 mg/g) 5 x 10 mL HCl 10% --

3145a Rubidium (Rb) Standard Solution 5 x 10 mL HNO3 1% --

3147a Samarium (Sm) Standard Solution 5 x 10 mL HNO3 10% --

3148a Scandium (Sc) Standard Solution 5 x 10 mL HNO3 10% --

3149 Selenium (Se) Standard Solution 5 X 10 mL HNO3 10% --

3150 Silicon (Si) Standard Solution 50 mL H2O --

3151 Silver (Ag) Standard Solution 5 x 10 mL HNO3 10% --

3152a Sodium (Na) Standard Solution 50 mL HNO3 1% --

3153a Strontium (Sr) Standard Solution 5 x 10 mL HNO3 10% --

3154 Sulfur (S) Standard Solution 5 x 10 mL H2SO4 0.1% --

3155 Tantalum (Ta) Standard Solution 50 mL HNO3 10% + HF 2% --

3156 Tellurium (Te) Standard Solution 5 x 10 mL HCl 10% --
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104.5 - Spectrometry, Single Element Standard Solutions (Cont.)

SRM Description Unit of Issue Nominal Acid Concentration of Matrix NRC License or Equivalent Required*

3157a Terbium (Tb) Standard Solution 5 x 10 ml HNO3 10% --

3158 Thallium (Tl) Standard Solution 5 x 10 mL HNO3 10% --

3159 Thorium (Th) Standard Solution 50 mL HNO3 10% X

3160a Thulium (Tm) Standard Solution 5 x 10 mL HNO3 10% --

3161a Tin (Sn) Standard Solution 50 mL HNO3 5% + HF 1% --

3162a Titanium (Ti) Standard Solution 50 mL HNO3 10% + HF 2% --

3163 Tungsten (W) Standard Solution 50 mL HNO3 7% + HF 4% --

3164 Uranium (U) Standard Solution (Radioactive) 5 x 10 mL HNO3 10% X

3165 Vanadium (V) Standard Solution (nominal 5 mg/g) 5 x 10 mL HNO3 10% --

3166a Ytterbium (Yb) Standard Solution 5 x 10 mL HNO3 10% --

3167a Yttrium (Y) Standard Solution 5 x 10 mL HNO3 10% --

3168a Zinc (Zn) Standard Solution 50 mL HNO3 10% --

3169 Zirconium (Zr) Standard Solution 50 mL HNO3 10% + HF 2% --

3177 Mercuric Chloride Standard Solution 5 x 10 mL HNO3 3% + HCl 4 % --

*If no “X”, then license is not required unless the institution possesses a specific license that covers the listed radionuclide.

104.8 - Anion Chromatography (solution form) 

These SRMs are single component solutions prepared gravimetrically for use in anion chromatography or any other technique that requires aqueous standard solutions for calibration 

or control materials.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

3180 3181 3182 3183 3184 3185 3186

Description >> Iodide Anion

Standard Solution

Sulfate Anion

Standard Solution

Chloride Anion

Standard Solution

Fluoride Anion

Standard Solution

Bromide Anion

Standard Solution

Nitrate Anion

Standard Solution

Phosphate Anion

Standard Solution

Unit of Issue >> 5 x 5 mL 5 x10 mL 5 x 10 mL 50 mL 5 x 10 mL 5 x 10 mL 5 x 10 mL

Anion Iodide Sulfate Chloride Fluoride Bromide Nitrate Phosphate

Nominal Mass Fraction (in mg/kg) 1000 1000 1000 1000 1000 1000 1000
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104.9 - Stable Isotopic Materials (solid and solution forms) 

The isotopic composition of these SRMs has been determined by mass spectrometry.

For light stable isotopic materials value assigned on an artifact based scale, see Table 104.10.

SRMs marked by an X are subject to license requirement by the NRC (or Agreement State) for transfer within the United States (U.S.). License certification is required of purchaser by 

NIST prior to shipment.

When an import permit for radioactive material is required of a customer outside the U.S., NIST must have a copy to complete an order and facilitate shipment.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Isotopic Measurand NRC License or Equivalent Required*

951a Boric Acid Isotopic Standard 10 g Boron --

952 Enriched Boric Acid Standard 0.25 g powder Boron --

973 Boric Acid Acidimetric Standard 100 g Boron --

975a Chlorine Isotopic Standard 0.25 g Chlorine --

977 Bromine Isotopic Standard 0.25 g Bromine --

978a Silver Isotopic Standard 0.25 g Silver --

979 Chromium Isotopic Standard 0.25 g Chromium --

980 Magnesium Isotopic Standard 0.25 g Magnesium --

981 Common Lead Isotopic Standard 1 g wire Lead --

982 Equal-Atom Lead Isotopic Standard 1 g wire Lead X

983 Radiogenic Lead Isotopic Standard 1 g wire Lead X

984 Rubidium Assay Isotopic Standard 0.25 g Rubidium --

986 Nickel Isotopic Standard 0.5 g Nickel --

987 Strontium Carbonate Isotopic Standard 1 g Strontium --

994 Gallium Isotopic Standard 0.25 g Gallium --

997 Thallium Isotopic Standard 0.25 g Thallium --

8599 Henderson Molybdenite 1 bottle at 10 g --

*If no “X”, then license is not required unless the institution possesses a specific license that covers the listed radionuclide.
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104.10 - Light Stable Isotopic Materials (gas, liquid, and solid forms) 

These RMs are for calibration of isotope-ratio mass spectrometers and associated sample preparation systems. They are distributed by NIST on behalf of the International Atomic 

Energy Agency (IAEA). At the request of the IAEA, quantities of these materials are limited to one unit of each RM per laboratory every 3 years.

The isotopic compositions are given in parts per thousand difference from isotope-ratio standards-Hydrogen and oxygen: Vienna Standard Mean Ocean Water (VSMOW), Carbon: 

Vienna PeeDee Belemnite (VPDB), Nitrogen: atmospheric N2 (Air), Silicon: NBS28 Silica Sand (optical), and Sulfur: Vienna Canyon Diablo Troilite (VCDT). In RM 8545 (LSVEC) is also 

expressed as an absolute isotopic ratio.

For further information see: SP260-149.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

(see Certificate of Analysis for uncertainties and other details)

SRM Description Unit Size δ13CVPDB × 

1000

δ15NAir × 1000 17OVSMOW δ18OVPDB × 

1000

18OVSMOW × 

1000

δ2HVSMOW × 

1000

δ30SiNBS28 × 

1000

δ34SVCDT x 1000 6Li/7Li

8535a VSMOW2 Vienna Standard Mean, Ocean Water 20 mL

8536 GISP-Water 20 mL -24.78 Ref [2] -189.5 Ref [2]

8537 SLAP-Water Light Stable Isotopic Standard 20 mL -55.5* Ref [1] -428* Ref [1]

8539 NBS 22-Oil 1 mL -30.03 Ref [5] -118 Ref [3]

8540 PEFI-Polyethylene Foil mg -32.15 Ref [5] -100 Ref [2]

8541 USGS24-Graphite 0.8 g -16.05 Ref [5]

8542 Sucrose ANU-Sucrose 1 g -10.45 Ref [5]

8543 NBS18-Carbonatite 0.4 g -5.01 Ref [5] -23.01 Ref [14] +7.20 Ref [15]

8544 NBS19-Limestone 0.4 g +1.95* Ref [16] -2.2* Ref [16] +28.65 Ref [15]

8545 LSVEC-Lithium Carbonate 0.4 g -46.6* Ref [5] -26.41 Ref [14] +3.69 Ref [15] 0.08215** Ref [4]

8546 NBS28-Silica Sand 0.4 g +9.58 Ref [2] 0* Ref [12]

8547 IAEAN1-Ammonium Sulfate 0.4 g +0.43ˆ Ref [7]

8548 IAEAN2-Ammonium Sulfate 0.4 g +20.41 Ref [7]

8549 IAEA-NO3 Nitrogen and Oxygen Isotopes in Nitrate 0.4 g +4.7 Ref [7] -0.2 Ref [17] +25.6 Ref [8]

8550 USGS25-Ammonium Sulfate 0.5 g -30.41 Ref [7]

8551 USGS26-Ammonium Sulfate 0.5 g +53.75 Ref [7]

8552 NSVEC-Gaseous Nitrogen 300 umol -2.78 Ref [7]

8553 Soufre De Lacq-Elemental Sulfur 0.5 g +16.90 Ref [10]

8554 NZ1-Silver Sulfide 0.5 g -0.3* Ref [11]

8555 NZ2-Silver Sulfide 0.5 g +22.67 Ref [12]

8556 NBS123-Sphalerite 1.5 g +17.44 Ref [13]

8557 NBS127-Barium Sulfate 0.5 g +8.6 Ref [8] +21.1 Ref [12]

8558 USGS32 Nitrogen and Oxygen Isotopes in Nitrate 0.9 g +180ˆRef [7] +25.7 Ref[8]

8559 Natural Gas, Coal Origin cyl -29.0(CH4) Ref [3] -138(CH4) Ref [3]

8561 Natural Gas, Biogenic cyl -72.8(CH4) Ref [3] -176(CH4) Ref [3]
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54

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- Values in parentheses are for information only

104.10 - Light Stable Isotopic Materials (gas, liquid and solid forms) 

These RMs are for calibration of isotope-ratio mass spectrometers and associated sample preparation systems. They are distributed by NIST on behalf of the International Atomic 

Energy Agency (IAEA). At the request of the IAEA, quantities of these materials are limited to one unit of each RM per laboratory every 3 years.

The isotopic compositions are given in parts per thousand difference from isotope-ratio standards-Hydrogen and oxygen: Vienna Standard Mean Ocean Water (VSMOW), Carbon: 

Vienna PeeDee Belemnite (VPDB), Nitrogen: atmospheric N2 (Air), Silicon: NBS28 Silica Sand (optical), and Sulfur: Vienna Canyon Diablo Troilite (VCDT). In RM 8545 (LSVEC) is also 

expressed as an absolute isotopic ratio.

For further information see: SP260-149.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

(see Certificate of Analysis for uncertainties and other details)

SRM Description Unit Size δ13CVPDB × 

1000

δ15NAir × 1000 17OVSMOW δ18OVPDB × 

1000

18OVSMOW × 

1000

δ2HVSMOW × 

1000

δ30SiNBS28 × 

1000

δ34SVCDT x 

1000

6Li/7Li

8562 CO2-Heavy, Paleomarine Origin set (2) -3.72 Ref [5] -18.49 Ref [14] +11.86 Ref [15]

8563 CO2-Light, Petrochemical Origin set (2) -41.59 Ref [5] -33.52 Ref [14] -3.64 Ref [15]

8564 CO2-Biogenic, Modern Biomass Origin set (2) -10.45 Ref [5] -10.09 Ref [14] +20.52 Ref [15]

8568 USGS34 Nitrogen and Oxygen Isotopes in Nitrate 0.9 g -1.8 Ref [8] -0.1 -27.9 Ref [8]

8569 USGS35 Nitrogen and Oxygen Isotopes in Nitrate 0.9 g +2.7 Ref [8] +21.6 Ref [17] +57.5 Ref [8]

8573 L-glutamic Acid USGS40(Light Carbon and

Nitrogen Isotopes in L-glutamic Acid)

1 g -26.39 Ref [12] -4.52 Ref [1,2]

8574 L-glutamic Acid USGS41 (Heavy Carbon and

Nitrogen Isotopes in L-glutamic Acid)

0.5 g +37.63 Ref [12] +47.57 Ref [1,2]

* Exact values defining the delta scale

^ Interim consensus values used for scale normalization

**Absolute isotope amount ratio

References

1 Gonfiantini, R., 1978, Nature, v. 271, p. 534-536.

2 Gonfiantini, R., Stichler, W., and Rozanski, K., 1995, IAEA-TECDOC-825, p. 13-29.

3 Hut, G., 1987, Consultants’ group meeting, IAEA, 42 p.

4 Qi, H.P., Taylor, P.D.P., Berglund, M., and De Bièvre, P., 1997a, Int. J Mass Spectrom. Ion Processes, v. 171, p. 263-268.

5 Coplen, T.B., Brand, W.A., Gehre, M., Gröning, M., Meijer, H. A. J., Toman, B, and Verkouteren, R. M., 2006, Anal. Chem., v. 78, p. 2439-2441.

6 Coplen, T. B., Kendall, C., and Hopple, J., 1983, Nature, v. 302, p. 236-238.

7 Böhlke, J.K., and Coplen, T.B., 1995, IAEA-TECDOC-825, p. 51-66.

8 Böhlke, J. K., Mroczkowski, S. J., and Coplen, T. B., 2003, Rapid Commun. Mass Spectrom., v. 17, p. 1835-1846.

9 Qi, H., Coplen, T.B., Geilmann, H., Brand, W.A., and Böhlke, J.K., 2003, Rapid Commun. Mass Spectrom., v. 17, p. 2483-2487.

10 Qi, H.P., and Coplen, Tyler B., 2003, Chem. Geol., v. 199, p. 183-187.

11 Robinson, B.W., 1995, IAEA-TECDOC-825, p. 39-45.

12 Coplen, T.B. et al., 2001, U.S.G.S. Water-Resources Investigations Report 01-4222, 98 p.

13 Zhang, Q.L. (Chang, T.L.) and Ding, T., 1989, Chin. Sci. Bull., v. 34, p. 1086-1089.

14 Verkouteren, R. M.; Klinedinst, D.B., 2004, NIST Special Publication 260-149, 58p.

15 Calculated from data in ref 14 and relation between VPDB and VSMOW in reference 12 (page 36).

16 Gonfiantini, R., 1984, Report to the Director General, IAEA, 77 p.

17 Michalski, G., Savarino, J.M. Bohlke, J.K. Thiemens, M.H. 2002, Anal. Chem., Vol. 74, pp 4989-4993.
www.nist.gov/srm | Phone: 301.975.2200 | Fax: 301.948.3730 | Email: srminfo@nist.gov

Standard Reference Materials 

for Chemical Composition

105. Health and Industrial Hygiene

55
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- Values in parentheses are for information only

105.1 - Clinical Laboratory Materials (gas, liquid, and solid forms) 

The following SRMs are for calibrating apparatus and validating analytical methods used in clinical and pathology laboratories. 

Additional information on the serum materials is given in table 105.2.

For further information see: SP 260-36, SP 260-72 and SP 260-83

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size Purity/Constituent (mass fraction in %)

900a Antiepilepsy Drugs in Frozen Human Serum 4 vials 2 levels: phenobarbital, phenytoin, lamotrigine, topiramate

909c Human Serum 3 bottles x 2 mL each Cholesterol

Glucose

Creatinine

Total Gylcerides

Urea

Uric Acid

Protein

911c Cholesterol 2 g 99.2

912a Urea-Clinical 25 g 99.9

913a Uric Acid 10 g 99.6

914a Creatinine 10 g 99.7

915b Calcium Carbonate (Clinical Standard) 20 g WCaCo3 99.907 WCa 40.0104

WCO3 59.923

916a Bilirubin 100 mg 98.3

917c D-Glucose (Dextrose) 50 g 99.7

918b Potassium Chloride (Clinical) 30 g WKCl 99.927

WK 52.4121

WCl 47.5284

919b Sodium Chloride (Clinical) 30 g WNaCl 99.835

WCl-

 60.564

WNa+ 39.2747

920 D-Mannitol 50 g 99.8

921 Cortisol (Hydrocortisone) 1 g 98.9

924a Lithium Carbonate (Clinical) 30 g 99.867*

925 VMA (Clinical) 1 g 99.4

927d Bovine Serum Albumin (7%, solution) set (10) BSA Conc. 65.41 mg/L

928 Lead Nitrate (Clinical) 30 g 100.00
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105.1 - Clinical Laboratory Materials (gas, liquid, and solid forms) (Cont.) 

SRM Description Unit Size Purity/Constituent (mass fraction in %)

929a Magnesium Gluconate 5 g Mg Conc. 5.362

937 Iron Metal (Clinical) 50 g 99.90

955c Toxic Metals in Caprine Blood 4 vials 4 Levels: Pb, As, Cd, Hg

1 Level: ethyl-, methyl-, and inorganic Hg species

956c Electrolytes in Frozen Human Serum 6 x 2.0 mL 3 Levels: Ca, Cl, Li, Mg, K, Na 

3 Levels: ionized calcium

965b Glucose in Frozen Human Serum set (8) (2 each conc) 4 Levels: glucose

967a Creatinine in Frozen Human Serum set (4) (2 each conc) 2 Levels: creatinine

968e Fat-Sol Vitamins, Carotenoids, and Cholesterol in Human Serum set (3) (1 each conc) 3 Levels: vitamins, carotenoids, and cholesterol

970 Ascorbic Acid in Frozen Human Serum set (4) (2 each conc) 2 Levels: Total Ascorbic Acid

971 Hormones in Frozen Human Serum 2 x 5 mL cortisol, testosterone, progesterone

972 Vitamin D in Human Serum set (4) (1 each level) 4 Levels: 25-hydroxyvitamin D2, 25-hydroxyvitamin D3,

3-epi-25-hydroxyvitamin D3,

998 Angiotensin I (Human) 0.5 mg 94.1

1400 Bone Ash 50 g 8 elements

1486 Bone Meal 50 g 8 elements

1595 Tripalmitin 2 g 99.5

1598a Inorganic Constituents in Animal Serum 2 vials 12 elements

5 elements

1599 2 Anticonvulsant Drugs set (4) 3 Levels: Valproic Acid,

carbamazepine

1950 Metabolites in Human Plasma 5 vials @ 1.0 mL each Cholesterol, Creatinine, Urea, Uric Acid, Homocysteine,

Glucose, Total Gylcerides,

3 Hormones, 8 Fatty Acids,

12 Amino Acids, 9 Vitamins,

4 Elements, 2 carotenoids,

Bilirubin, Selenium Species, Total protein,

6 PFCs, 19 Fatty Acids,

6 Amino Acids, 6 Vitamins,

3 Elements, 2 carotenoids, 

1951b Lipids in Frozen Human Serum set (4) (2 each conc) 2 Levels: Total Cholesterol,

Triglycerides only,

1 Level: Total Glycerides

1952a Cholesterol in Human Serum set (6) (2 each conc) 3 Levels: cholesterol

1955 Homocysteine and Folate in Frozen Human Serum set (3) (1 each conc) 3 Levels: Homocysteine,

5-Methyltetrahydrofic Acid,

Folic Acid
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105.1 - Clinical Laboratory Materials (gas, liquid, and solid forms) (Cont.) 

SRM Description Unit Size Purity/Constituent (mass fraction in %)

2366 Cytomegalovirus (CMV) for DNA Measurements 3 vials 3 Levels: cytomegalovirus (copies per micro liter)

2389a Amino Acids in 0.1 mol/L Hydrochloric Acid 5 x 1.2 mL 17 Amino Acids

2668 Toxic Elements in Frozen Human Urine Set (10) (5 each conc) 2 Levels: 14 Elements

2 Levels: 9 Elements

2669 Arsenic Species in Frozen Human Urine Set (10) (5 each conc.) 2 levels: Arsenic species

2 levels: Total Arsenic

2670a Toxic Elements in Urine (Freeze-Dried) set (4) (2 each conc) 2 Levels: 14 Elements

10 Elements

2921 Human Cardiac Troponin Complex 5 x 115 μL Cardiac Troponin

cTnI, cTnT, cTnC

2972 25-Hydroxyvitamin D2 and D3 Calibration Solutions 10 ampoules x 1.2 mL each 25-hydroxvitamin D2

25-hydroxyvitamin D3

3668 Mercury, Perchlorate, and Iodide in Frozen Human Urine Set (10) (5 each conc) 2 Levels: Hg, Nitrate, Perchlorate

2 Levels: I, Thiocyanate

3950 Vitamin B6 in Frozen Human Serum 2 vials, 1 level each 2 Levels: Vitamin B6

8323 Yeast Protein Extract 3 vials x 0.2 mL 0.191 mg/mL

8327 Peptide Reference Material for Molecular Mass and Purity Measurements set 3 (1 mg each) Molecular Mass,

Purity of Peptides,

Amino Acid Sequence,

for 3 synthetic peptides

8642 FDA Saxitoxin Dihydrochloride Solution 10 x 1.2 mL 0.0103

* Conforms to National Committee for Clinical Laboratory Standards (NCCLS) specification ACC-1.
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105.2 - Serum and Plasma Materials (frozen, liquid, and lyophilized forms) 

These SRMs serve a variety of clinical measurement needs. SRM 909c is a frozen human serum for use in determining specified constituents. SRM 927d is a bovine serum albumin 

in a sterile 7% solution for use in the calibration and standardization of procedures to analyze total serum protein. SRM 956c is a frozen human serum for use in the calibration and 

standardization of procedures for the determination of specific electrolytes in either diluted or undiluted human serum or plasma. SRM 965b is a frozen human serum for evaluating the 

accuracy of procedures used to determine glucose in human serum and to validate secondary reference materials. SRM 967a is a frozen human serum for evaluating the accuracy of 

procedures for the determination of creatinine in human serum. SRM 968e is a lyophilized human serum for validating methods used to determine fat-soluble vitamins, carotenoids, and 

cholesterol in human serum and plasma.

SRM 970 is a frozen human serum for validating methods for determining ascorbic acid in human serum and similar matrices. SRM 971 is a hormone in frozen human serum for 

evaluating the accuracy of procedures for the determination of the steroid hormones cortisol and progesterone in human serum. SRM 1951a is a frozen human serum for evaluating 

the accuracy of clinical procedures for the determination of total cholesterol, HDL-cholesterol, LDL-cholesterol and triglycerides (triglyerides and total glyceride species). SRM 972 

is a frozen human serum for evaluating vitamin D metabolites. SRM 1951b is a frozen human serum for evaluating the accuracy of clinical procedures for the determination of total 

cholesterol. SRM 1957 is a freeze-dried human serum for evaluating PCB congeners, chlorinated pesticides and total cholesterol in human serum and similar matrices. SRMs 1957 

and 1958 are freeze-dried human serums for evaluating PCB congeners, chlorinated pesticides, and PBDE congeners with non-certified values for PFCs and dioxins/furans. SRM 2921 

is a human cardiac troponin complex. SRM 2921 is primarily intended for use in calibrating clinical procedures and devices for the determination of cardiac troponin I (cTnI) in human 

serum. It can also be used for value-assignment of calibrators and control materials.

For further information see: SP 260-83

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

909c 927d 956c 965b 967a 968e 970 971 972

Description >>

Human Serum

Bovine Serum

Albumin

(7%, solution)

Electrolytes

in Frozen

Human Serum

Glucose

in Frozen

Human Serum

Creatinine

in Frozen

Human Serum

Fat-Soluble Vitamins,

Carotenoids,

and Cholesterol

in Human Serum

Ascorbic Acid

in Frozen

Human Serum

Hormones

in Frozen

Human Serum

Vitamin D

in Human

Serum

Unit Size >> 3 bottles x 2 mL each set (10) 6 x 2.0 mL set (8) (2 each conc) set(4) (2 each conc) set (3) (1 each conc.) set (4) (2 each conc) 2 x 5 mL set (4) (1 each level)

α-Carotene-Total X

α-Tocopherol 3 levels

γ-Tocopherol 3 levels

β-cryptoxanthin-total X 3 levels

Calcium Ionized X

5-Methyltetra-hydrofolic Acid

Albumin X

Amino Acids

Ascorbic Acid 2 levels

Bilirubin

Cardiac troponin C (cTnC)

Cardiac troponin I (cTnI)

Cardiac troponin T (cTnT)

Chlorine Cl X

Cholesterol X 3 levels

Cis-B-Carotene

Coenzyme Q10 (3 levels)
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105.2 - Serum and Plasma Materials (frozen, liquid, and lyophilized forms) (Cont.)

1950 1951b 1952a 1955 1957 1958 1959 2921 3950

Description >>

Metabolites

in Human Plasma

Lipids

in Frozen

Human Serum

Cholesterol

in Human Serum

Homocysteine

and Folate

in Frozen

Human Serum

Organic

Contaminants

in Non-Fortified

Human Serum

Organic

Contaminants

in Fortified

Human Serum

Drugs of Abuse

in Frozen

Human Serum

Human Cardiac

Troponin Complex

Vitamin B6

in Frozen

Human Serum

Unit Size >> 5 vials @ 1.0 mL each set (4) (2 each conc) set (6) (2 each conc) set (3) (1 each conc) 5 vials x 10 mL 5 vials x 10 mL 2 vials x 5 mL 5 x 115 uL 2 vials, 1 level each

α-Carotene-Total X

α-Tocopherol X

γ-Tocopherol X

β-cryptoxanthin-total

Calcium Ionized

5-Methyltetra hydrofolic Acid X 3 levels

Albumin

Amino Acids X

Ascorbic Acid

Bilirubin X

Cardiac troponin C (cTnC) X

Cardiac troponin I (cTnI) X

Cardiac troponin T (cTnT) X

Chlorine Cl

Cholesterol X 2 levels 3 levels

Cis-B-Carotene X

Coenzyme Q10
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105.2 - Serum and Plasma Materials (frozen, liquid, and lyophilized forms) 

909c 927d 956c 965b 967a 968e 970 971 972

Description >>

Human Serum

Bovine Serum

Albumin

(7%, solution)

Electrolytes

in Frozen

Human Serum

Glucose

in Frozen

Human Serum

Creatinine

in Frozen

Human Serum

Fat-Sol Vitamins,

Carotenoids,

and Cholesterol

in Human Serum

Ascorbic Acid

in Frozen

Human Serum

Hormones

in Frozen

Human Serum

Vitamin D

in Human

Serum

Unit Size >> 3 bottles x 2 mL each set (10) 6 x 2.0 mL set (8) (2 each conc) set(4) (2 each conc) set (3) (1 each conc.) set (4) (2 each conc) 2 x 5 mL set (4) (1 each level)

Cortisol 2 levels

Creatinine X 2 levels

Dioxins/Furans

Drugs of Abuse

Elements (Selected) X 3 levels

Fatty Acids

Folic Acid

Glucose X 4 levels

Glycerides-Total X

HDL-Cholesterol

Homocysteine

LDL-Cholesterol

Lutein-Total 3 levels

Lycopene-Total 3 levels

Perflourinated compounds (PFCs)

Pesticides

Polybrominated diphenyl ethers (PBDEs)

Polychlorinated biphenyl (PCB) 

Congeners

Progesterone 2 levels

Prox, Protein X X

Pyridoxal 5’’ phosphate

Retinol-Total 3 levels

Retinyl palmitate

Retinyl Stearate

Selenium Species

Testosterone 2 levels

Total B-Cryptoxantin

trans-Carotene 3 levels

trans-Lycopene 3 levels

Triglycerides

Urea X

Uric Acid X

Vitamin D 4 levels

Vitamin, 25-hydroxyvitamin D2

Vitamin, 25-hydroxyvitamin D3 3 levels

Vitamin, 3-epi-25-hydroxyvitamin D3

Zeaxanthin-total 3 levels
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105.2 - Serum and Plasma Materials (frozen, liquid, and lyophilized forms) (Cont.)

1950 1951b 1952a 1955 1957 1958 1959 2921 3950

Description >>

Metabolites

in Human Plasma

Lipids

in Frozen

Human Serum

Cholesterol

in Human Serum

Homocysteine

and Folate

in Frozen

Human Serum

Organic

Contaminants

in Non-Fortified

Human Serum

Organic

Contaminants

in Fortified

Human Serum

Drugs of Abuse

in Frozen

Human Serum

Human Cardiac

Troponin Complex

Vitamin B6

in Frozen

Human Serum

Unit Size >> 5 vials @ 1.0 mL each set (4) (2 each conc) set (6) (2 each conc) set (3) (1 each conc) 5 vials x 10 mL 5 vials x 10 mL 2 vials x 5 mL 5 x 115 uL 2 vials, 1 level each

Cortisol X

Creatinine X

Dioxins/Furans X X

Drugs of Abuse X

Elements (Selected) X

Fatty Acids X

Folic Acid X 3 levels

Glucose X

Glycerides-Total X 2 levels

HDL-Cholesterol 2 levels

Homocysteine X 3 levels

LDL-Cholesterol 2 levels

Lutein-Total X

Lycopene-Total X

Perflourinated compounds (PFCs) X X X

Pesticides X X

Polybrominated diphenyl ethers (PBDEs) X X

Polychlorinated biphenyl (PCB) 

Congeners

X X

Progesterone X

Prox, Protein X

Pyridoxal 5’-phosphate X 2 levels

Retinol-Total X

Retinyl palmitate X

Retinyl Stearate X

Selenium Species X

Testosterone X

Total B-Cryptoxantin X

trans-Carotene X

trans-Lycopene X

Triglycerides 2 levels

Urea X

Uric Acid X

Vitamin D

Vitamin, 25-hydroxyvitamin D2 X

Vitamin, 25-hydroxyvitamin D3 X

Vitamin, 3-epi-25-hydroxyvitamin D3

Zeaxanthin-total X
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105.3 - Ethanol Solutions 

This SRM is for use in the calibration of instruments and techniques for the determination of ethanol (ethyl alcohol) in breath and blood. 

SRM 1828b consists of four concentrations of ethanol-water solutions in a set of five ampoules.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

1828b 1847 2891 2892 2893 2894 2895 2896 2897 2898 2899a 2900

Description >>

Ethanol-Water

Solutions

EthanolWater

Solutions

EthanolWater

Solution

(nominal 0.02 %)

EthanolWater

Solution

(nominal 0.04 %)

EthanolWater

Solution

(nominal 0.08 %)

EthanolWater

Solution

(nominal 0.1 %)

EthanolWater

Solution

(nominal 0.2 %)

EthanolWater

Solution

(nominal 0.3 %)

EthanolWater

Solution,

(nominal 2%)

EthanolWater

Solution,

(nominal 6%)

EthanolWater

Solution,

(nominal 25

% by mass)

EthanolWater

Solution,

(nominal 95.6%)

Unit Size >> 6 x 1.2 mL 6 x 10 mL 5 x 1.2 mL 5 x 1.2 mL 5 x 1.2 mL 5 x 1.2 mL 5 x 1.2 mL 5 x 1.2 mL 5 x 10 mL 5 x 10 mL 5 ampoules

x 10 mL

10 mL

Nominal Concentration 

(mass fraction in %)

0.02, 0.04, 

0.08, 

0.1, 0.2, 0.3

2, 6, 25 0.02 0.04 0.08 0.1 0.2 0.3 2 6 25 95.6
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105.4 - Toxic Substances in Urine (powder and frozen form) 

SRM 2669 are for determination of arsenic species in human urine. A unit consists of five pouches, each containing one vial of Level I Arsenic Species 

and one vial of Level II Arsenic Species.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

2668 2669 2670a 3668

Description >> Toxic Elements in Frozen

Human Urine

Arsenic Species in Frozen

Human Urine

Toxic Elements in Urine

(Freeze-Dried)

Mercury, Perchlorate, and Iodide in

Frozen Human Urine

Unit of Issue >> Set (10) (5 each conc.) Set (10) (5 each conc.) set (4) (2 each conc.) Set (10) (5 each conc.)

Concentrations in μg/L

Aluminum (Al) (2 levels)

Antimony (Sb) 2 levels 2 levels

Arsenic (As) 2 levels 2 levels (3)

Arsenic acid (AsV) 2 levels

Arsenobetaine (AB) 2 levels

Arsenocholine (AC) 3.74

Arsenous acid (AsIII) 2 levels

Barium (Ba) 2 levels (2)

Beryllium (Be) 2 levels (5)

Cadmium (Cd) 2 levels 2 levels

Calcium (Ca) 2 levels

Cesium (Cs) 2 levels 2 levels

Chlorine (Cl) 2 levels

Chromium (Cr) 2 levels 2 levels

Cobalt (Co) 2 levels (2 levels)

Copper (Cu) 2 levels

Dimethylarsinic acid (DMA) 2 levels

Fluoride (F) 2 levels

Iodine (I) 2 levels

Iodineb (5)

Lead (Pb) 2 levels 2 levels

Magnesium (Mn) 2 levels

Manganese (Mn) 2 levels 2 levels

Mercury (Hg) 2 levels 2 levels
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105.4 - Toxic Substances in Urine (powder and frozen form) (Cont.)

2668 2669 2670a 3668

Description >> Toxic Elements in Frozen

Human Urine

Arsenic Species in Frozen

Human Urine

Toxic Elements in Urine

(Freeze-Dried)

Mercury, Perchlorate, and Iodide in

Frozen Human Urine

Unit of Issue >> Set (10) (5 each conc) Set (10) (5 each conc.) set (4) (2 each conc) Set (10) (5 each conc)

Concentrations in μg/L

Molybdenum (Mo) 2 levels 114.1

Monomethylarsonic acid (MMA) 2 levels

Nickel (Ni) 2 levels (2 levels)

Nitrate (NO3

-

) 2 levels

Perchlorate (ClO4) 2 levels

Platinum (Pt) 2 levels 51.5

Potassium (K) 2 levels 2 levels

Selenium (Se) 2 levels 2 levels

Sodium (Na) 2 levels 2 levels

Thallium (Ti) 2 levels 2 levels

Thiocyanate (SCN-) 2 levels

Thorium (Th) 2 levels

Tin (Sn) 2 levels (<1)

Trimethylarsine oxide (TMAO) 194

Tungsten (W) 2 levels (<1)

Uranium (U) 2 levels 2 levels

Vanadium (V) 2 levels (2 levels)

Zinc (Zn) 2 levels

a Flourine concentrations, as measured, are for Fluoride, mass concentration.

b Iodine concentrations, as measured, are for Iodide.

c These levels are not spiked, but are endogenous to the matrix.
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- Values in parentheses are for information only

105.7 - Drugs of Abuse (hair, serum, and urine) 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source. 

1507b 1508a 1511 1959 2379 2380 2381 2382 8444

Description >> THC-COOH in

Freeze-Dried

Urine

Benzoylecgonine

(Cocaine Metabolite)

in Freeze-dried Urine

Multi Drugs

of Abuse

in Urine

Drugs of Abuse

in Frozen

Human Serum

Drugs of Abuse

in Human Hair I

Drugs of Abuse

in Human Hair II

Morphine and

Codeine in Urine

Morphine

Glucuronide

in Urine

Cotinine in

Freeze-Dried

Human Urine

Unit of Issue >> set (3) set (4) 3 bottles 2 vials x 5 mL 100 mg 100 mg set (4) set (4) set (4)

Concentrations in ng/mL unless noted by an asterisk* for ng/mg

Amphetamine 5.49* ---

Benzoylecgonine 3 levels 162 1033 4.01* ---

Cocaethylene 2.67* ---

Cocaine 6.84* --- 3 levels

Codeine 288 --- 9.82*

Cotinine Glucuronide 3 levels 3 levels

G-Monoacetymorphine --- 2.71*

Methadone 1010

Methamphetamine 1014 5.20* ---

Morphine 309 1012 --- 10.54* 3 levels

Phencylidine 23.8 1004 6.24* ---

Tetrahydrocannabinol --- 0.99*

THC-9-COOH 2 levels 14.1 1008
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- Values in parentheses are for information only

105.8 - DNA Profiling (solid forms) 

SRMs 2390, and 2391c are intended for use in the standardization of forensic and paternity quality assurance procedures and instructional law enforcement or non-clinical research 

purposes. SRM 2392 is intended to provide quality control when performing the polymerase chain reaction (PCR) and sequencing of human mitochondrial DNA (mtDNA) for forensic 

identifications, medical diagnosis, or mutation detection. It may also be used as a control when amplifying (PCR) and sequencing any DNA.

SRM 2390 DNA Profiling Standard, based on Restriction Fragment Length Polymorphism (RFLP) testing, is certified for the sizes of each allelic band of five commonly used DNA 

probes of two human DNA samples; one is from a female cell line, and the other is from a male source. SRM 2390 consists of 20 components packaged in three boxes.

SRM 2391c includes short tandem repeat (STR) information for all genomic DNA samples in the SRM. The STR data includes the Federal Bureau of Investigation’s (FBI’s) CODIS 

(Combined DNA Index System) 13 core STR loci, including loci that were commercially available at the time of certification. Certified values for a total of 41 STR loci, 17 of which are 

Y-STRs, and Reference values for 26 STR loci are included in this issue. The new standard includes well-characterized DNA in two forms: genomic DNA and DNA to be extracted from 

cells spotted onto 903 and FTA filter papers. SRM 2391c consists of 6 components packaged in one box and stored at refrigeration temperatures (NOT frozen).

SRM 2392 Mitochondrial DNA Sequencing contains DNA extracted from two cell lines plus cloned DNA from a region that is difficult to sequence. The certificate accompanying the 

SRM details the base pair sequences of the DNA, and the sequences of 58 unique primer sets which permit the amplification and sequencing of any specific area or the entire human 

mitochondrial DNA (strand). SRM 2392 consists of three frozen components packaged in one box.

SRM 2392-I Mitochondrial DNA Sequencing compliments and adds another DNA template to SRM 2392 for the amplification and sequencing of human mtDNA. The selection of the 

HL-60 cell culture line for this additional DNA template was based on a suggestion from the Federal Bureau of Investigation (FBI) that this DNA would be particularly useful to the 

forensic community.

SRM 2394 Heteroplasmic Mitochondrial DNA Mutation Standard contains mixtures of a 285 base pair polymerase chain reaction (PCR) product from two different cell culture lines 

that differ by one base pair. These mixtures contain varying ratios of the minor/major heteroplasmy including 1/99, 2.5/97.5, 5/95, 10/90, 20/80, 30/70, 40/60, and 50/50. This SRM is 

intended to provide quality control in determining the sensitivity of heteroplasmic low-frequency single nucleotide mutation detection techniques.

SRM 2399 Fragile X Human DNA Triplet Repeat Standard is the leading heritable cause of mental retardataion and the number of Fragile X tests conducted for carrier screening, prenatal screening and diagnoses is second only to that for cystic fibrosis. SRM 2399 is intended to provide quality control to clinical laboratories that test human samples for Fragile X 

and need to determine the number of CGG trinucleotide repeats. This SRM consists of nine vials of amplified DNA (PCR) products containing 20 to 118 trinucleotide repeats; this range 

encompasses individuals with normal and premutation numbers of repeats.

For further information see: SP260-155

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. For specific values and 

uncertainties, the certificate is the only official source.

SRM Description Unit of Issue

2366 Cytomegalovirus (CMV) for DNA Measurements 3 vials

2372 Human DNA Quantitation Standard set (3 x 1 each)

2391c PCR Based DNA Profiling Standard 6 vials

2392 Mitochondrial DNA Sequencing set (3)

2392-I Mitochondrial DNA Sequencing each

2393 CAG Repeat Length Mutation in Huntington’s Disease set (6)

2394 Heteroplasmic Mitochondrial DNA Mutation Detection Std set (10)

2395 Human Y-Chromosome DNA Profiling Standard set (6)

2396 Oxidative DNA Damage Mass Spectrometry Standards set (10)

2399 Fragile X Human DNA Triplet Repeat Standard set (9)
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- Values in parentheses are for information only

105.9 - Biomaterials (solid forms) 

Biomaterials are materials that are applied for use in medical devices that require intimate contact with tissues and body fluids.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

2910a 8011 8012 8013 8395 8396 8397 8456 8457

Description >>

Calcium

Hydroxyapatite

Gold Nanoparticles,

Nominal 10 nm

Diameter

Gold Nanoparticles,

Nominal 30 nm

Diameter

Gold Nanoparticles,

Nominal 60 nm

Diameter

Tissue Engineering

Reference, Scaffold

Tissue Engineering

Reference, Scaffold

Tissue Engineering

Reference, Scaffold

Ultra High Molecular

Weight Polyethylene

Ultra High Molecular

Weight Polyethylene

Unit Size >> 2 g two 5 mL ampoules two 5 mL ampoules two 5 mL ampoules 1 scaffold 1 scaffold 1 scaffold each 10 cubes x 0.5 cm

Properties Calcium

Phosphorus

Ca/P Molar Ratio

Reference Values 

for Particle Size

Information Values 

for Chemical and 

Electrochemical 

Properties

Reference Values 

for Particle Size

Information Values 

for Chemical and 

Electrochemical 

Properties

Reference Values 

for Particle Size

Information Values 

for Chemical and 

Electrochemical 

Properties

Young’s Modulus

Yield Strength

Ultimate Tensile 

Strength

Elongation

Young’s Modulus

Yield Strength

Ultimate Tensile 

Strength

Elongation
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- Reference values are italicized

- Values in parentheses are for information only

105.10 - Respirable Materials on Filter Media 

These SRMs consist of potentially hazardous materials deposited on filters to be used to determine the levels of these materials in industrial atmospheres. 

SRMs 2676d, 2677a, and 3087a have been superceded by SRM 2783 Air Particulate on Filter Media.

Also, see Table 105.12 Respirable Materials

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Elemental Composition in (μg/filter)

2783 Air Particulate on Filter Media 2 + 2 Blnk (47 mm dia) Certified: 18 elements 

Reference values: 9 elements

2950 Respirable Alpha Quartz on Filter Media, 10-500 μg 30 filters plus 30 blanks See Composition Value for SRM 2952, 2953, 2954, 2956, 2957

2951 Respirable Alpha Quartz on Filter Media, 5 μg 5 filters plus 5 blanks Alpha Quartz 5 μg

2952 Respirable Alpha Quartz on Filter Media, 10 μg 5 filters plus 5 blanks Alpha Quartz 10 μg

2953 Respirable Alpha Quartz on Filter Media, 20 μg 5 filters plus 5 blanks Alpha Quartz 20 μg

2954 Respirable Alpha Quartz on Filter Media, 50 μg 5 filters plus 5 blanks Alpha Quartz 50 μg

2955 Respirable Alpha Quartz on, Filter Media, 100 μg 5 filters plus 5 blanks Alpha Quartz 100 μg

2956 Respirable Alpha Quartz on Filter Media, 250 μg 5 filters plus 5 blanks Alpha Quartz 250 μg

2957 Respirable Alpha Quartz on Filter Media, 500 μg 5 filters plus 5 blanks Alpha Quartz 500 μg

2958 Respirable Alpha Quartz on Filter Media, 1000 μg 5 filters plus 5 blanks Alpha Quartz 1000 μg

2960 Respirable Cristobalite on Filter Media, 5 μg - 250 μg 30 filters plus 30 blanks See Composition Value for SRM 2961, 2962, 2963, 2964, 2965 and 2966

2961 Respirable Cristobalite on Filter Media, 5 μg 5 filters plus 5 blanks Cristobalite 5 g

2962 Respirable Cristobalite on Filter Media, 10 μg 5 loaded plus 5 blanks Cristobalite 10 g

2963 Respirable Cristobalite on Filter Media, 20 μg 5 loaded plus 5 blanks Cristobalite 20 g

2964 Respirable Cristobalite on Filter Media, 50 μg 5 loaded plus 5 blanks Cristobalite 50 g

2965 Respirable Cristobalite on Filter Media, 100 μg 5 loaded plus 5 blanks Cristobalite 100 g

2966 Respirable Cristobalite on Filter Media, 250 μg 5 loaded plus 5 blanks Cristobalite 250 g

2967 Respirable Cristobalite on Filter Media, 500 μg 5 loaded plus 5 blanks Cristobalite 500 g

8785 Air Particulate Matter on Filter Media 3 filters Total Carbon, (Elemental Carbon, Organic Carbon)

8786 Filter Blank for RM 8785 filter (average Organic Carbon)
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105.11 - Trace Constituent Elements in Blank Filters

SRMs 2678 and 2681 are for use in evaluating the performance of air sampling filter methods with two different filter types or sizes commonly used in air sampling 

of industrial atmospheres.

For both SRMs, either certified values (in mg), or limits of detection (XD), for each of 30 constituent elements as well as six leachable anions and cations are provided.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source. 

2678 2681

Description >> Membrane Blank Filter Ashless Blank Filter

Unit of Issue >> set (10) set (10)

Diameter (in mm) 47 42.5

Elemental Composition 30 elements 30 elements

Filter Weight (in g) 0.09 0.14

Leachable Cations 

and Anions

6 cations 6 cations

Pore Size (in um) 0.45
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- Reference values are italicized

- Values in parentheses are for information only

105.12 - Respirable Materials 

SRMs 1878a and 1879a are crystalline silica materials with particles in the respirable range. They are intended for use in determining, by x-ray diffraction, the levels of respirable silica 

in an industrial atmosphere according to National Institute for Occupational Safety and Health (NIOSH) Analytical Method 7500 or equivalent methods. NOTE: These SRMs are not 

certified for particle size.

Also, see Table 105.10 Respirable Materials on Filter Media

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Measurand(s)

1648a Urban Particulate Matter 2 g Certified: 24 elements

Reference values: 8 elements

1649b Urban Dust 2 g Certified: 23 PAHs, 13 PCBs, 4 pesticides

Reference values: 38 PAHs, 16 nitro-PAHs, 49 PCBs, 34 pesticides

1650b Diesel Particulate Matter 200 mg Certified: 30 PAHs, 6 nitro-PAHs

Reference values: 45 PAHs, 16 nitro-PAHs

1877 Beryllium Oxide Powder 20 g 35.76 % beryllium

1878a Respirable Alpha Quartz 5 g 93.7 % alpha quartz

1879a Respirable Cristobalite 5 g 88.2 % cristobalite

1975 Diesel Particulate Extract 4 x 1.2 mL Certified: 8 PAHs, 4 nitro-PAHs

Reference values: 23 PAHs, 15 nitro-PAHs, mutagenicity, residue mass

2583 Trace Elements in Indoor Dust 8 g Certified: 5 elements

2584 Trace Elements in Indoor Dust 8 g Certified: 5 elements

Reference values: 10 elements

2585 Organic Contaminants in House Dust 10 g Certified: 33 PAHs, 30 PCBs, 4 pesticides, 15 PBDEs

Reference values: 33 PAHs, 12 PCBs, 10 pesticides, 3 PBDEs

2786 Fine Particulate Matter (<4 μm) 1 bottle Certified: 25 PAHs, 3 nitro-PAHs, 2 PBDE, 6 elements

Reference values: 26 PAHs, 4 nitro-PAHs, 12 elements, 3 sugars, 5 PBDE, 12 dioxins, 15 furans

2787 Fine Particulate Matter ( <10 μm) 1 bottle Certified: 23 PAHs, 3 nitro-PAHs, 2 PBDE, 5 elements

Reference Values: 27 PAHs, 3-nitro-PAHs, 5 PBDE, 13 elements, 3 sugars, 12 dioxins, 15 furans

2975 Diesel Particulate Matter 1 g Certified: 11 PAHs

Reference values: 28 PAHs, 17 nitro-PAHs, particle-size, total extractable mass
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105.13 - Lead in Paint, Dust, and Soil (powder and sheet forms) 

These SRMs and RM have been developed in conjunction with the U.S. EPA to monitor paint, soil, and dust sources of lead. SRMs 2570 through 2576 consist of one MylarTM sheet 

per unit. Each sheet, 7.6cm x 10.2cm, is coated with a single uniform paint layer for use with portable x-ray fluorescence analyzers. SRM 2579a consists of a set of six polyester 

sheets, one each of SRMs 2570 through 2575. SRMs 2580, 2581, 2582, and 2589 consist of paint that has been ground and homogenized into a powder, 99+% of which passes a 

100 μm sieve. SRM 2583 and SRM 2584 consist of dust, 99+% of which passes a 100 μm sieve, that was collected in vacuum cleaner bags during cleaning of dwelling interiors. SRM 

2583 and SRM 2584 are certified for arsenic, chromium, cadmium, lead, and mercury. [Also see Category 106.] SRMs 2584, 2586, and 2587 are dust or soil matrices containing lead 

from paint. RM 8680 consists of a 10.2 cm wide x 15.2 cm long x 1.3 cm thick section of painted fiberboard and is intended for use in the evaluation of destructive and nondestructive 

methods of measuring lead in paint on fiberboard.

For organic contaminants in indoor dust see SRM 2585. See Table 109.1

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size Lead Concentration and Other Elements

1648a Urban Particulate Matter 2 g 0.655 % Pb, 24 elements certified, 8 reference values

2569 Lead Paint Films for Children’s Products 8 sheets 3 levels Pb (mg/kg): <0.2, 85.0, 314.4

3 reference values for density of paint

2570 Lead Paint Film, White/Blank Nominal <0.001 mg/cm2 1 film <0.001 mg/cm2

 Pb

2571 Lead Paint Film (Yellow), Nominal 3.5 mg/cm2 1 + blank 3.58 mg/cm2

 Pb

2572 Lead Paint Film (Orange), Nominal 1.6 mg/cm2 1 + blank 1.527 mg/cm2

 Pb

2573 Lead Paint Film (Red), Nominal 1.0 mg/cm2 1 + blank 1.040 mg/cm2

 Pb

2574 Lead Paint Film (Gold), Nominal 0.7 mg/cm2 1 + blank 0.714 mg/cm2

 Pb

2575 Lead Paint Film (Green), Nominal 0.3 mg/cm2 1 + blank 0.307 mg/cm2

 Pb

2576 Lead Paint Film, High Level 1 + blank 5.59 mg/cm2

 Pb

2579a Lead Paint Films for Portable XRF Analyzers set (6) 0.307 to 3.58 mg/cm2

 Pb

5 levels plus blank

2580 Powdered Paint Nominal 4 % Lead 30 g 4.34 % Pb

2581 Powdered Paint Nominal 0.5 % Lead 35 g 0.449 % Pb

2582 Powdered Paint Nominal 200 mg/kg Lead 20 g 208.8 mg/kg Pb

2583 Trace Elements in Indoor Dust 8 g 85.9 mg/kg Pb, 5 elements certified

2584 Trace Elements in Indoor Dust 8 g 9761 mg/kg Pb, 5 elements certified, 10 reference values

2586 Trace Elements in Soil (contains lead from paint) 55 g 432 mg/kg Pb, 4 elements certified, 18 reference values

2587 Trace Elements in Soil (contains lead from paint) 55 g 3242 mg/kg Pb, 4 elements certified, 14 reference values

2589 Powdered Paint Nominal 10 % Lead 35 g 9.99 % Pb

2783 Air Particulate on Filter Media 2 + 2 Blank (47 mm dia) 317 ng/filter Pb,

18 elements certified

9 reference values

8680 Paint on Fiberboard each individually value assigned
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Standard Reference Materials 

for Chemical Composition

106. Inorganics

73
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74

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

106.1 - Metal (Inorganics) Constituents in Natural Matrices (liquid and solid forms) 

Also see:

105.13 Lead in Paint, Dust, Soil

108.2 Metal Constituents in Fossil Fuels (liquid forms)

108.3 Sulfur and Mercury in Fossil Fuels

108.6 Fossil Fuel Trace Elements (solid forms)

110.1 Foods and Beverages

110.3 USA/Canada Collaborative Materials

111.2 Ores

111.4 Clay

111.5 Rocks and Minerals

111.7 Soils, Sediments, and Sludges

These SRMs and RM are for analysis of materials of health or environmental interest. [Also see Categories 105 and 111.]

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size Elemental Composition

1640a Trace Elements in Natural Water 1 bottle x 250 mL 22 elements certified

7 reference values

1 element certified

1641d Mercury In Water 10 x 10 mL

1643e Trace Elements in Water 250 mL 29 elements certified

(1 information value)

20 elements certified

1646a Estuarine Sediment 70 g

1648a Urban Particulate Matter 2 g 24 elements certified

8 reference values

(6 information values)

1944 New York/New Jersey Waterway Sediment 50 g 9 elements certified

20 reference values

1946 Lake Superior Fish Tissue 5 x 7-9 grams 3 elements certified

9 reference values

1947 Lake Michigan Fish Tissue 5 x 8 grams 8 elements certified

2385 Slurried Spinach 4 x 70 g 7 elements certified

2387 Peanut Butter 3 x 170 g 9 elements certified

plus numerous non-elemental constituents

2451 Fine Carbon (Activated) - From Cyanide Ore Leaching 100 g 1 element certified (Hg)

1 reference value (Au)
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106.1 - Metal (Inorganics) Constituents in Natural Matrices (liquid and solid forms) (Cont.)

SRM Description Unit Size Elemental Composition

2583 Trace Elements in Indoor Dust 8 g 5 elements certified

2584 Trace Elements in Indoor Dust 8 g 5 elements certified

10 reference values

2586 Trace Elements in Soil (contains lead from paint) 55 g 4 elements certified

18 reference values

2587 Trace Elements in Soil (contains lead from paint) 55 g 4 elements certified

14 reference values

2702 Inorganics in Marine Sediment 50 g 25 elements certified

8 reference values

2703 Sediment for Solid Sampling (Small, Sample) Analytical Techniques 5 g 22 elements certified

7 reference values

(9 information values)

2709a San Joaquin Soil 50 g 19 elements certified

15 reference values

(10 information values)

2710a Montana I Soil 50 g 22 elements certified

13 reference values

(13 information values)

2711a Montana II Soil 50 g 25 elements certified

8 reference values

(12 information values)

2780 Hard Rock Mine Waste 50 g 12 elements certified

7 reference values

2781 Domestic Sludge 40 g 10 elements certified

2782 Industrial Sludge 70 g 10 elements certified

16 reference values

2783 Air Particulate on Filter Media 2 + 2 Blank (47 mm dia) 18 elements certified; 9 ref values

2855 Additive Elements in Polyethylene 3 bottles Level I (12 info values)

Level II & III 7 cert values

1 ref value, (4 info values)

2976 Mussel Tissue (Trace Elements & Methylmercury) Freeze-dried 25 g 8 elements certified

20 reference values

(3 information values)

8704 Buffalo River Sediment 50 g 25 reference values

8785 Air Particulate Matter on Filter Media 3 filters 1 reference value

8786 Filter Blank for RM 8785 filter (1 information value)
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- Reference values are italicized

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106.3 - Mercury in Activated Carbon 

This SRM is for use in the evaluation of chemical methods of analysis and in the calibration of instrumental methods of analysis.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Mercury (mg/kg)

2451 Fine Carbon (Activated) - From Cyanide Ore Leaching 100 g 688

106.4 - Environmental Matrices with Carbon Values

These materials are intended for use in evaluating analytical methods used to measure carbon; SRM 1216 is intended for the calibration of instruments, 

used to measure total carbon. Also see:

Table 104.4 Microchemistry (powder form)

Table 104.10 Light Stable Isotopic Materials (gas, liquid and solid forms)

Table 107.1 Primary Gas Mixtures

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Carbon (mass fraction, in %)

1216 Carbon Modified Silica 3 x 1 g 3 Levels: 0.70, 9.06, 17.04

1632d Trace Elements in Coal, (Bituminous) 50 g 76.88

1944 New York/New Jersey Waterway Sediment 50 g 4.4I(TOC)

2718 Green Petroleum Coke 50 g 88.99

2719 Calcined Petroleum Coke 50 g 97.06

2775 Foundry Coke 50 g 91.34

2776 Furnace Coke 50 g 89.15

8704 Buffalo River Sediment 50 g 3.351

8785 Air Particulate Matter on Filter Media 3 filters 22.3

8786 Filter Blank for RM 8785 filter 3.3 g/cm2
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- Reference values are italicized

- Values in parentheses are for information only

106.6 - Used Auto Catalysts (powder form) 

These SRMs are intended for use in the evaluation of methods for the analysis of the platinum group metals and lead in auto catalysts. They were produced in cooperation with the 

International Precious Metals Institute and are issued as fine (<74 mm) powders.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. For specific values and 

uncertainties, the certificate is the only official source.

2556 2557

Description >> Recycled Pellet (Autocatalyst) Recycled Monolith (Autocatalyst)

Unit of Issue >> 70 g 70 g

Elemental Composition (in mg/kg)

Lead 6228 13931

Palladium 326.0 233.2

Platinum 697.4 1131

Rhodium 51.2 135.1
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106.7 - Zeolites (powder form) 

These RMs are intended to provide a common source of zeolite materials for measurement comparisons. Additional reference and information values are provided for atomic ratios of 

Si to Al and Na to Al, trace element content, enthalpy of formation, unit cell parameters and particle size distributions. Figures are provided showing spectra for NMR analyses, plots of 

particle size distribution, electron microscope images of particles and plots of variation in sample mass with change in ambient humidity.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

8850 8851 8852

Description >> Zeolite Y Zeolite A Ammonium ZSM-5 Zeolite

Unit of Issue >> 35-40 g 35-40 g 35-40 g

Major Components of Zeolite RMs (mass fractions are given in %)

Aluminum 8.49 14.766 1.396

LOF 25.37 22.1 8.47

LOI 25.679 21.464 8.5

Si* 22.52 15.27 41.18

Si** 30.336 19.541 45.19

Sodium 7.225 12.732

*Value relative to the hydrated sample mass.

**Value relative to sample mass ignited at 1000 °C.
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Standard Reference Materials 

for Chemical Composition

107. Primary Gas Mixtures

79
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80

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- Reference values are italicized

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107.1 - Primary Gas Mixtures 

These SRMs are for calibrating equipment and apparatus used to measure various components of gas mixtures and atmospheric pollutants. The typical gas mixture is supplied in 

a DOT 3AL specification aluminum (6061 alloy) cylinder with a nominal pressure exceeding 12.4 MPa that provides the user with approximately 0.73 m3 of usable mixture. Due to 

increasing customer demand, these primary gas mixtures are in short supply and may not be readily available for sale. In such cases, a NIST traceable reference gas described below 

may be substituted.

A NIST Traceable Reference Material (NTRM) is a reference material produced by a commercial supplier with a well-defined traceability to NIST. This traceability is established via 

criteria and protocols defined by NIST that are tailored to meet the needs of the metrological community to be served. The NTRM concept was established to allow NIST to respond 

to the increasing needs for high quality reference materials by leveraging its relatively fixed human and financial resources with secondary reference material producers. Reference 

material producers adhering to NIST defined protocol requirements are allowed to use the NTRM trademark to identify their product.

The gas NTRM program was established in 1992 in partnership with the U.S. EPA and specialty gas companies as a means for providing end-users with the wide variety of certified 

gas standards needed to implement the Emissions Trading provision of the 1990 Clean Air Act. Gas NTRMs are produced and distributed by specialty gas companies with NIST 

oversight of the production and maintenance, and direct involvement in the analysis. NTRMs can be developed for any pollutant, concentration, and balance gas combination for which 

a NIST primary standard or SRM exists. The gas standards prepared according to this program are related, within known limits of uncertainty, to specific gaseous primary standards 

maintained by NIST.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Certified Component Nominal Amount-of-Substance Fraction

1658a Methane in Air (Nominal 1 μmol/mol) cylinder 1 μmol/mol CH4

1659a Methane in Air (Nominal 10 μmol/mol) cylinder CH4 10 μmol/mol

1660a Methane and Propane in Air (Nominal: Methane

4 μmol/mol; Propane 1 μmol/mol)

cylinder CH4:C3H8 4:1 μmol/mol

1661a* Sulfur Dioxide in Nitrogen (Nominal 500 μmol/mol) cylinder SO2 500 μmol/mol

1662a* Sulfur Dioxide in Nitrogen (Nominal 1000 μmol/mol) cylinder SO2 1000 μmol/mol

1663a* Sulfur Dioxide in Nitrogen (Nominal 1500 μmol/mol) cylinder SO2 1500 μmol/mol

1664a* Sulfur Dioxide in Nitrogen (Nominal 2500 μmol/mol) cylinder SO2 2500 μmol/mol

1665b Propane in Air (Nominal 3 μmol/mol) cylinder C3H8 3 μmol/mol

1666b Propane in Air (Nominal 10 μmol/mol) cylinder C3H8 10 μmol/mol

1667b Propane in Air (Nominal 50 μmol/mol) cylinder C3H8 50 μmol/mol

1668b* Propane in Air (Nominal 100 μmol/mol) cylinder C3H8 100 μmol/mol

1669b Propane in Air (Nominal 500 μmol/mol) cylinder C3H8 500 μmol/mol

1674b* Carbon Dioxide in Nitrogen (Nominal 7 % mol/mol) cylinder CO2 7 % mol/mol

1677c* Carbon Monoxide in Nitrogen (Nominal 10 μmol/mol) cylinder CO 10 μmol/mol

1678c* Carbon Monoxide in Nitrogen (Nominal 50 μmol/mol) cylinder CO 50 μmol/mol

1679c* Carbon Monoxide in Nitrogen (Nominal 100 μmol/mol) cylinder CO 100 μmol/mol

1680b* Carbon Monoxide in Nitrogen (Nominal 500 μmol/mol) cylinder CO 500 μmol/mol
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107.1 - Primary Gas Mixtures (Cont.)

SRM Description Unit of Issue Certified Component Nominal Amount-of-Substance Fraction

1681b* Carbon Monoxide in Nitrogen (Nominal 1000 μmol/mol) cylinder CO 1000 μmol/mol

1683b* Nitric Oxide in Nitrogen (Nominal 50 μmol/mol) cylinder NO 50 μmol/mol

1684b* Nitric Oxide in Nitrogen (Nominal 100 μmol/mol) cylinder NO 100 μmol/mol

1685b* Nitric Oxide in Nitrogen (Nominal 250 μmol/mol) cylinder NO 250 μmol/mol

1686b* Nitric Oxide in Nitrogen (Nominal 500 μmol/mol) cylinder NO 500 μmol/mol

1687b* Nitric Oxide in Nitrogen (Nominal 1000 μmol/mol) cylinder NO 1000 μmol/mol

1689 Sulfur Dioxide in Nitrogen cylinder SO2 5 μmol/mol

1693a* Sulfur Dioxide in Nitrogen (Nominal 50 μmol/mol) cylinder SO2 50 μmol/mol

1694a* Sulfur Dioxide in Nitrogen (Nominal 100 μmol/mol) cylinder SO2 100 μmol/mol

1696a* Sulfur Dioxide in Nitrogen (Nominal 3500 μmol/mol) cylinder SO2 3500 μmol/mol

1800b Eighteen Non-Methane Hydrocarbon Compounds

in Nitrogen (Nominal 5 nmol/mol)

6 L Water Volume Cyl (Eighteen components in small cylinder) 5 nmol/mol

1804c Toxic Volatile Organic Compounds in Nitrogen

(Nominal 5.0 nmol/mol)

cylinder (Thirty components) 5 nmol/mol

2612a Carbon Monoxide in Air (Nominal 10 μmol/mol) cylinder CO 10 μmol/mol

2613a Carbon Monoxide in Air (Nominal 20 μmol/mol) cylinder CO 20 μmol/mol

2614a Carbon Monoxide in Air (Nominal 42 μmol/mol) cylinder CO 42 μmol/mol

2617 Carbon Dioxide in Nitrogen (Nominal 500 μmol/mol) cylinder CO2 500 μmol/mol

2619a Carbon Dioxide in Nitrogen (Nominal 0.5 % mol/mol) cylinder CO2 0.5 % mol/mol

2620a Carbon Dioxide in Nitrogen (Nominal 1.0 % mol/mol) cylinder CO2 1.0 % mol/mol

2621a Carbon Dioxide in Nitrogen (Nominal 1.5 % mol/mol) cylinder CO2 1.5 % mol/mol

2622a Carbon Dioxide in Nitrogen (Nominal 2.0 % mol/mol) cylinder CO2 2.0 % mol/mol

2623a Carbon Dioxide in Nitrogen (Nominal 2.5 % mol/mol) cylinder CO2 2.5 % mol/mol

2624a Carbon Dioxide in Nitrogen (Nominal 3.0 % mol/mol) cylinder CO2 3.0 % mol/mol

2625a* Carbon Dioxide in Nitrogen (Nominal 3.5 % mol/mol) cylinder CO2 3.5 % mol/mol

2627a Nitric Oxide in Nitrogen (Nominal 5 μmol/mol) cylinder NO 5 μmol/mol

2628a Nitric Oxide in Nitrogen (Nominal 10 μmol/mol) cylinder NO 10 μmol/mol

2629a* Nitric Oxide in Nitrogen (Nominal 20 μmol/mol) each NO 20 μmol/mol

2630* Nitric Oxide in Nitrogen (Nominal 1500 μmol/mol) each NO 1500 μmol/mol

2631a* Nitric Oxide in Nitrogen (Nominal 3000 μmol/mol) cylinder NO 3000 μmol/mol

2635a* Carbon Monoxide in Nitrogen (Nominal 25 μmol/mol) cylinder CO

2636a* Carbon Monoxide in Nitrogen (Nominal 250 μmol/mol) cylinder CO 250 μmol/mol
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107.1 - Primary Gas Mixtures (Cont.)

SRM Description Unit of Issue Certified Component Nominal Amount-of-Substance Fraction

2637a* Carbon Monoxide in Nitrogen (Nominal 2500 μmol/mol) cylinder CO 2500 μmol/mol

2638a* Carbon Monoxide in Nitrogen (Nominal 5000 μmol/mol) cylinder CO 5000 μmol/mol

2639a Carbon Monoxide in Nitrogen (Nominal 1 % mol/mol) cylinder CO 1 % mol/mol

2640a Carbon Monoxide in Nitrogen (Nominal 2 % mol/mol) cylinder CO 2 % mol/mol

2641a Carbon Monoxide in Nitrogen (Nominal 4 % mol/mol) cylinder CO 4 % mol/mol

2642a* Carbon Monoxide in Nitrogen (Nominal 8 % mol/mol) cylinder CO 8 % mol/mol

2644a Propane in Nitrogen (Nominal 250 μmol/mol) cylinder C3H8 250 μmol/mol

2646a Propane in Nitrogen (Nominal 1000 μmol/mol) cylinder C3H8 1000 μmol/mol

2647a Propane in Nitrogen (Nominal 2500 μmol/mol) cylinder C3H8 2500 μmol/mol

2657a* Oxygen in Nitrogen (Nominal 2 % mol/mol) cylinder O2 2 % mol/mol

2658a* Oxygen in Nitrogen (Nominal 10 % mol/mol) cylinder O2 10 % mol/mol

2659a* Oxygen in Nitrogen (Nominal 21 % mol/mol) cylinder O2 21 % mol/mol

2660a* Total Oxides of Nitrogen (NOx) in Air (Nominal 100 μmol/mol) cylinder NOx 100 μmol/mol

2730 Hydrogen Sulfide in Nitrogen (Nominal 5 μmol/mol) cylinder H2S 5 μmol/mol

2731 Hydrogen Sulfide in Nitrogen (Nominal 20 μmol/mol) cylinder H2S 20 μmol/mol

2735 Nitric Oxide in Nitrogen (Nominal 800 μmol/mol) cylinder NO 800 μmol/mol

2737 Nitric Oxide in Nitrogen (500 nmol/mol) cylinder NO 500 nmol/mol

2738 Nitric Oxide in Nitrogen (Nominal 1000 nmol/mol) cylinder NO 1000 nmol/mol

2740a Carbon Monoxide in Nitrogen (Nominal 10 % mol/mol) cylinder CO 10 % mol/mol

2741a Carbon Monoxide in Nitrogen (Nominal 13 % mol/mol) cylinder CO 13 % mol/mol

2745* Carbon Dioxide in Nitrogen (Nominal 16 % mol/mol) cylinder CO2 16 % mol/mol

2750 Methane in Air (Nominal 50 μmol/mol) cylinder CH4 50 μmol/mol

2751 Methane in Air (Nominal 100 μmol/mol) cylinder CH4 100 μmol/mol

2764 Propane in Air (Nominal 0.25 μmol/mol) cylinder C3H8 0.25 μmol/mol

2765 Propane in Air (Nominal 100 nmol/mol) cylinder C3H8 100 nmol/mol

Those SRMs that are marked “*” are available as NTRMs from commercial suppliers.
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Standard Reference Materials 

for Chemical Composition

108. Fossil and Alternative Fuels

83
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108.1 - Alcohols and Ethers [Oxygenates] in Gasoline 

SRMs 1829, 1837, 1838, and 1839 are for calibrating instruments and validating methods used to determine various alcohols in gasoline. SRM 1829 is issued as a set of six sealed 

20mL ampoules; SRMs 1837, 1838 and 1839 are each issued as a set of five sealed 20mL ampoules.

SRMs 2286 through 2297 were produced in response to the U.S. EPA Final Rule on Reformulated Gasoline aimed at reducing the volatile organic compounds emitted from gasoline. 

They consist of varying quantities of alcohol and ether (oxygenate) solutions in gasoline. SRMs 2286 through 2293 are certified for constituent oxygenate concentration and resultant 

oxygen concentration in gasoline. Each SRM unit is issued as a set of three sealed 20 mL ampoules two ampoules contain oxygenate and one ampoule contains base reference 

gasoline. SRMs 2294 through 2297 are certified for oxygenate, sulfur, benzene, and toluene, with reference values for olefins and aromatics. Each SRM unit is issued as a set of two 

sealed 20mL ampoules.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. For specific values and 

uncertainties, the certificate is the only official source.

Concentration (mass fraction, in %)

SRM Description Unit of Issue Benzene Ethanol Methanol Methanol 

and t-Butanol

Oxygen Oxygenate Sulfur Toulene

1829 Alcohols in Reference Fuels set (6) 11.39 0.335 10.33 + 6.63

1837 Methanol and Butanol (in Gasoline) 5 x 20 mL 10.33 + 6.63

1838 Ethanol (in Gasoline) 5 x 20 mL 11.39

1839 Methanol (in Gasoline) 5 x 20 mL 0.335

2286 Ethanol (in Gasoline) set (3) 5.73 2.02

2287 Ethanol (in Gasoline) set (3) 10.07 3.53

2288 t-Amyl-methyl Ether (in Gasoline) set (3) 2.02 12.78

2289 t-Amyl-methyl Ether (in Gasoline) set (3) 2.73 17.30

2290 Ethyl-t-butyl Ether (in Gasoline) set (3) 2.01 12.78

2291 Ethyl-t-butyl Ether (in Gasoline) set (3) 2.70 17.18

2293 Methyl-t-butyl Ethyl (in Gasoline) set (3) 2.71 14.86

2294 Reformulated Gasoline (nominal 11% MTBE) 2 x 20 mL 1.03 2.01 10.97 0.00409 8.29

2295 Reformulated Gasoline (nominal 15% MTBE) 2 x 20 mL 0.99 2.66 14.54 0.0308 7.89

2296 Reformulated Gasoline (nominal 13% ETBE) 2 x 20 mL 1.0 2.06 13.02 0.0040 8.02

2297 Reformulated Gasoline (nominal 10% Ethanol) 2 x 20 mL 1.04 9.91 3.50 0.03037 8.27
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108.2 - Metal Constituents in Fossil Fuels (liquid forms) 

These SRMs and RM are for analysis of metal trace elements in fuel oil and reference fuels. [Also see Category 114.] SRM 1634c is 

a “No. 6” fuel oil in terms of viscosity but has a flash point of 43 °C.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

Elemental Composition (concentrations are in mass fractions, in mg/kg, unless noted as %)

SRM Description Unit of Issue Arsenic Cobalt Nickel Selenium Sulfur Vanadium

1634c Trace Elements in Fuel Oil 100 mL 0.1426 0.1510 17.54 0.1020 (2 %) 28.19

8505 Vanadium in Crude Oil 250 mL 390*
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108.3 - Sulfur, Mercury, and Chlorine in Fuels (liquid and solid forms) 

These materials are for analysis of sulfur, mercury, and chlorine in fossil fuels.For further information see: SP 260-84, and SP 260-167

See other related links:

Table 106.3 Mercury in Activated Carbon

Table 108.1 Alcohols and Ethers [Oxygenates] in Gasoline

Table 108.2 Metal Constituents in Fossil Fuels (liquid forms)

Table 108.6 Fossil Fuel Trace Elements (solid forms)

Table 114.2 Lubricating Base Oils

Determination of Sulfur in Biodiesel and Petroleum Diesel by X-ray Fluorescence (XRF) Using the Gravimetric Standard Addition

Concept & Theory:

A Method for the Preparation of NIST Traceable Fossil Fuel Standards with Concentrations Intermediate to SRM Values

Demonstration Videos:

Preparation of Powdered Coal and Coke SRM Blends

Preparation of Middle Distillate SRM Blends

Ir QC Test & Detailed Example:

A Statistic that Identifies Errant Standard Preparation and Instrument Nonlinearity Demonstrated with Mercury Standards Prepared by Blending 

NIST Fossil Fuel CRMs of Similar Matrices.

Downloadable Spreadsheet:

Software Package To Facilitate the Preparation of Intermediate-Range Fossil Fuel Standards from Certified Reference Materials

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue

1616b Sulfur in Kerosene (Low Level) 100 mL

1617a Sulfur in Kerosine (High Level) 100 mL

1619b Sulfur in Residual Fuel Oil (0.7 %) 100 mL

1620c Sulfur in Residual Fuel Oil (4 %) 100 mL

1621e Sulfur in Residual Fuel Oil (1 %) 100 mL

1622e Sulfur in Residual Fuel Oil (2 %) 100 mL

1623c Sulfur in Residual Fuel Oil 0.3 % 100 mL

1624d Sulfur in Diesel Fuel Oil, 0.4 % 100 mL

1632d Trace Elements in Coal, (Bituminous) 50 g

1635a Trace Elements in Coal, (Subbitumimous) 50 g

2294 Reformulated Gasoline (nominal 11 % MTBE) 2 x 20 mL

2295 Reformulated Gasoline (nominal 15 % MTBE) 2 x 20 mL
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108.3 - Sulfur, Mercury, and Chlorine in Fuels (liquid and solid forms) (Cont.)

SRM Description Unit of Issue

2296 Reformulated Gasoline (nominal 13 % ETBE) 2 x 20 mL

2297 Reformulated Gasoline (nominal 10 % Ethanol) 2 x 20 mL

2298 Sulfur in Gasoline (High-Octane) 5 x 20 mL

2299 Sulfur in Gasoline (Reformulated) 5 x 20 mL

2682b Subbituminous Coal (Sulfur, Mercury, and Chlorine) 50 g

2683c Bituminous Coal (Sulfur, Mercury, and Chlorine) 50 g

2684b Bituminous Coal (Sulfur and Mercury) 50 g

2685b Bituminous Coal (Sulfur, Mercury, and Chlorine) 50 g

2693 Bituminous Coal (Sulfur, Mercury, and Chlorine) 50 g

2716 Sulfur in Gasoline (<1 mg/kg) 5 ampoules x 20 mL

2717a Sulfur in Residual Fuel Oil (3 %) 100 mL

2718 Green Petroleum Coke 50 g

2719 Calcined Petroleum Coke 50 g

2720 Sulfur in Di-n-Butyl Sulfide 5 x 4.5 mL

2721 Crude Oil (Light -Sour) 5 x 10 mL

2722 Crude Oil (Heavy Sweet) 5 x 10 mL

2723a Sulfur in Diesel Fuel Oil 10 x 10 mL

2770 Sulfur in Diesel Fuel Oil (40 mg/kg) 10 x 10 mL

2771 Sulfur in Diesel Fuel Blend Stock 1 bottle x 100 mL

2773 B100 Biodiesel (Animal-Based) 5 ampoules x 10 mL each

2775 Foundry Coke 50 g

2776 Furnace Coke 50 g

108.3(1) - Crude Oil

SRM Description Unit Size Mercury in μg/kg Sulfur in % Water in mg/kg

2721 Crude Oil (Light -Sour) 5 x 10 mL 0.0417 1.5832 134

2722 Crude Oil (Heavy Sweet) 5 x 10 mL 0.1292 0.21037 99
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108.3(2) - Gasoline 

SRM Description Unit Size Sulfur in mg/kg

2294 Reformulated Gasoline (nominal 11 % MTBE) 2 x 20 mL 40.9

2295 Reformulated Gasoline (nominal 15 % MTBE) 2 x 20 mL 3080

2296 Reformulated Gasoline (nominal 13 % ETBE) 2 x 20 mL 40.0

2297 Reformulated Gasoline (nominal 10 % Ethanol) 2 x 20 mL 303.7

2298 Sulfur in Gasoline (High-Octane) 5 x 20 mL 4.7

2299 Sulfur in Gasoline (Reformulated) 5 x 20 mL 13.8

2716 Sulfur in Gasoline (<1 mg/kg) 5 ampoules x 20 mL 0.44

108.3(4) - Biodiesel B100 

SRM Description Unit Size Sulfur in mg/kg

2773 B100 Biodiesel (Animal-Based) 5 ampoules x 10 mL each 7.39

108.3(5) - Di-n-Butyl Sulfide

SRM Description Unit Size Sulfur in %

2720 Sulfur in Di-n-Butyl Sulfide 5 x 4.5 mL 21.91

108.3(3) - Middle Distillates 

SRM Description Unit Size Mercury in μg/g Sulfur in mg/kg

1616b Sulfur in Kerosene (Low Level) 100 mL 8.41

1617a Sulfur in Kerosine (High Level) 100 mL 1730.7

1624d Sulfur in Diesel Fuel Oil, 0.4 % 100 mL 3882

2723a Sulfur in Diesel Fuel Oil 10 x 10 mL 10.90

2770 Sulfur in Diesel Fuel Oil (40 mg/kg) 10 x 10 mL 41.57

2771 Sulfur in Diesel Fuel Blend Stock 1 bottle x 100 mL 0.102
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108.3(6) - Residual Fuel Oil 

SRM Description Unit Size Heat of Combustion (in MJ/kg)* Mercury in ng/g Sulfur in %

1619b Sulfur in Residual Fuel Oil (0.7 %) 100 mL 3.46 0.6960

1620c Sulfur in Residual Fuel Oil (4 %) 100 mL (41.46) 4.561

1621e Sulfur in Residual Fuel Oil (1 %) 100 mL 0.9480

1622e Sulfur in Residual Fuel Oil (2 %) 100 mL 2.1468

1623c Sulfur in Residual Fuel Oil 0.3 % 100 mL 0.3806

2717a Sulfur in Residual Fuel Oil (3 %) 100 mL (42.29) 2.9957

108.3(7) - Petroleum Coke

SRM Description Unit Size Aluminum Al 

in mg/kg

Calcium Ca 

in mg/kg

Carbon C in % Cobalt Co 

in mg/kg

Furnash 

Ash in %

Heat of 

Combustion 

(in MJ/kg)*

Hydrogen H 

in %

Iron Fe 

in mg/kg

Nickel Ni 

in mg/kg

Nitrogen N 

in %

Silicon Si 

in mg/kg

Sodium Na 

in mg/kg

Sulfur 

in %

Vanadium V 

in mg/kg

Volatile 

Matter %

2718 Green Petroleum Coke 50 g 16.5 174 88.99 5.79 (0.18) (35.76) 3.47 290 139.1 1.23 (63.00) 88.6 4.7030 302 (10.6)

2719 Calcined Petroleum Coke 50 g 58.9 57.7 97.06 18.6 (0.12) (32.90) 0.16 201.6 204 1.17 (138) 15.1 0.8877 58.6 (0.54)

108.3(8) - Subbituminous Coal 

SRM Description Unit Size Chlorine in mg/kg Furnace Ash in % Heat of Combustion 

(in MJ/kg)*

Mercury in ug/kg Sulfur in %

1635a Trace Elements in Coal, (Subbitumimous) 50 g (6.29) 83.6

2682b Subbituminous Coal (Sulfur, Mercury, and Chlorine) 50 g 16.1 6.32 25.66 108.8 0.4917

108.3(9) - Bituminous Coal

SRM Description Unit Size Chlorine 

in mg/kg

Furnace Ash 

in %

Heat of Combustion 

(in MJ/kg)*

Mercury in ug/kg Sulfur in % Volatile Matter %

1632d Trace Elements in Coal, (Bituminous) 50 g 1142 (7.08) (32.15) 92.8 1.462

2683c Bituminous Coal (Sulfur, Mercury, and Chlorine) 50 g 1127 9.870 (30.24) 90.0 1.955

2684b Bituminous Coal (Sulfur and Mercury) 50 g 1142 10.85 28.56 97.4 3.076

2685b Bituminous Coal (Sulfur, Mercury, and Chlorine) 50 g 517 15.94 26.94 146.2 4.730

2692c Bituminous Coal (Sulfur, Mercury, and Chlorine) 50 g 1338 7.499 179.0 1.064

2693 Bituminous Coal (Sulfur, Mercury, and Chlorine) 50 g 369.6 9.4 37.3 0.4571
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108.4 - Moisture in Oils and Alcohols (liquid form) 

SRM 2890, Water Saturated 1-Octanol, is certified for water content and is intended for use in calibrating instruments and validating the accuracy of analytical methods. Water 

concentration values, for RMs 8506a, 8509, and 8510 are not certified, but represent the “best estimate” of the moisture content determined by NIST, and are intended for use in 

developing and validating methods for the determination of moisture in oil and similar matrices. 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source. 

2721 2722 2890 8506a 8509 8510

Description >>

Crude Oil (Light -Sour) Crude Oil (Heavy Sweet) Water Saturated 1-Octanol Moisture in Transformer Oil

Moisture in Methanol,

93 mg/kg

Moisture in Methanol,

325 mg/kg

Unit of Issue >> 5 x 10 mL 5 x 10 mL 5 x 2 mL 5 x 9.5mL set (5) set (5)

Water Concentration 134 mg/kg 99 mg/kg 47.3 mg/g 34.5 mg/kg (Volumetric)

22.5 mg/kg (Coulometric)

93 mg/kg 325 mg/kg

108.5 - Reference Liquids for Evaluating Fuels

SRMs 1815a and 1816a are high purity liquids intended for use in maintaining the integrity of the octane rating of motor and aviation fuels as specified 

in the ASTM Manual for Rating Motor, Diesel, and Aviation Fuels.

The conversion from SRM 2037 Solvent Red Dye 24 to Solvent Red Dye 26 is provided in the SRM 2037 article (pages 3 & 4) of the June 2005 SRM Spotlight.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Purity (mass fraction, in %)

1815a n-Heptane (Fuel Rating) 100 mL 99.987

1816a Isooctane (Fuel Rating) 100 mL 99.987

2037 Solvent Red 24 Diesel Fuel Dye 100 mg powder 98.0

108.3(10) - Metallurgical Coke

SRM Description Unit Size Carbon C in % Furnace Ash in % Hydrogen H in % Nitrogen N in % Sulfur in % Volatile Matter %

2775 Foundry Coke 50 g 91.34 5.77 0.41 1.16 0.5816 1.31

2776 Furnace Coke 50 g 89.15 8.06 0.26 1.21 0.825 0.98

* Gross Calorific Value or HHV (Higher Heating Value)
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108.6 - Fossil Fuel: Trace Elements (solid forms) 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

1632d 1633c 1635a 2689 2690 2691 2718 2719

Description >> Trace Elements in Coal,

(Bituminous)

Trace Elements in

Coal Fly Ash

Trace Elements in Coal,

(Subbitumimous) Coal Fly Ash Coal Fly Ash Coal Fly Ash

Green Petroleum

Coke

Calcined Petroleum

Coke

Unit of Issue >> 50 g 75 g 50 g set (3) set (3) set (3) 50 g 50 g

Elemental Composition as mass fraction in mg/kg (ppm) unless noted by an asterisk * for %

Aluminum 0.912* 13.28 0.5437* 12.94* 12.35* 9.81* 16.5 58.9

Antimony 0.445 8.56 0.251 (9) (6) (3)

Arsenic 6.1 186.2 0.860 (200) (26) (30)

Barium 40.42 0.1126* 0.03578* (800) (5800) (5900)

Beryllium (16) (21) (8) (8)

Boron 62 36.0

Bromine (2.9) (1)

Cadmium 0.08 0.758 0.282

Calcium 0.144* 1.365* 1.087* 2.18* 5.71* 18.45* 174 57.7

Carbon 76.88 (89.0*) (97.1*)

Cerium 11.7 (180) 5.45

Cesium 0.598 9.39 0.0998 (11) (8) (1)

Chlorine 1142

Chromium 13.7 258 3.56 (170) (67) (68)

Cobalt 3.424 42.9 2.004 (48) (19) (26) 5.79 18.6

Copper 5.83 173.7 11.42

Dysprosium (0.9) 18.70

Europium 0.217 4.67 0.1115 (3) (2) (2)

Furnace Ash in % (6.29)

Gallium (55)

Germanium (13)

Hafnium (0.5) (6.0) 3.14 (7) (8) (10)

Holmium (0.14)

Hydrogen 5.10* 10.49* 3.92* (3.47*) (0.17*)

Indium (0.14)

Iron 0.749* 10.49* 0.2472* 9.32* 3.57* 4.42* 290 201.6

Lanthanum (6) 87.0

Lead 3.845 95.2 2.85 (52) (39) (29)

Lutetium 1.32

Magnesium 390 0.498* 0.2303* 0.61* 1.53* 3.12*
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108.6 - Fossil Fuel: Trace Elements (solid forms) (Cont.)

1632d 1633c 1635a 2689 2690 2691 2718 2719

Description >> Trace Elements in Coal,

(Bituminous)

Trace Elements in

Coal Fly Ash

Trace Elements in Coal,

(Subbitumimous) Coal Fly Ash Coal Fly Ash Coal Fly Ash

Green Petroleum

Coke

Calcined Petroleum

Coke

Unit of Issue >> 50 g 75 g 50 g set (3) set (3) set (3) 50 g 50 g

Elemental Composition as mass fraction in mg/kg (ppm) unless noted by an asterisk * for %

Magnesium 390 0.498* 0.2303* 0.61* 1.53* 3.12*

Manganese 13.1 240.2 6.69 (300) (300) (200)

Mercury 0.0928 1.005 0.0836 (0.018) (0.0005) 0.0578

Molybdenum 6.36

Neodymium (87)

Nickel (10) 132 5.37 (122) (46) (53) 139.1 204

Nitrogen 1.59* 0.192 (1.23*) (1.17*)

Phosphorus 0.192* 0.10* 0.52* 0.51*

Potassium 1094 1.773* 0.01874* 2.20* 1.04* 0.34*

Rubidium 7.36 117.42 1.226

Samarium (1) (19) 0.483

Scandium 2.89 37.6 1.240 (32) (17) (24)

Selenium 1.29 13.9 0.662 (7) (0.8) (17)

Silicon 1.65* 21.30* 24.06* 25.85* 16.83* (63) (138)

Sodium 296.9 0.1707* 01031* 0.25* o.24* 1.09* 88.6 15.1

Strontium 63.5 901 0.0160* (700) (2000) (2700)

Sulfur 1.462* 0.118* 0.15* 0.83* 4.7032* 0.8877*

Tantalum 1.58

Terbium 3.12

Thorium 1.428 23.0 1.299 (25) (25) (26)

Tin 0.724*

Titanium 477 0.724* 0.05240* 0.75* 0.52* 0.90*

Uranium 0.517 9.25 0.4792

Vanadium 23.74 286.2 13.34 302 58.6

Yttrium (7.7)

Zinc 12.9 235 7.3 (240) (120) (120)
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108.8 - Biofuels 

For related materials see: Table 108.9 Bio Mass Feedstock

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue

2377 Fatty Acid Methyl Esters in 2,2,4-Trimethylpentane 5 x 1.2 mL ampoules

2772 B100 Biodiesel (Soy-Based) 5 ampoules x 10 mL each

2773 B100 Biodiesel (Animal-Based) 5 ampoules x 10 mL each

108.9 - Biomass Feedstock

For related materials see: See Table 108.8 Biofuels

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. For specific values and 

uncertainties, the certificate is the only official source.

SRM Description Unit Size

8491 Sugarcane Bagasse Whole Biomass Feedstock 50 g

8492 Eastern Cottonwood Whole Biomass Feedstock 50 g

8493 Monterey Pine Whole Biomass Feedstock 50 g

8494 Wheat Straw Whole Biomass Feedstock 50 g

8495 Northern Softwood 10 sheets

8496 Eucalyptus Hardwood 10 sheets
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108.9(1) - Biomass Feedstock

RMs 8491, 8492, 8493, and 8494 are for use in evaluating the composition of lignocellulosic materials. 

SRM Description Unit Size 95 % Ethanol 

Extractives

Acetyl AcidInsoluble 

Residue

Acid-Soluble 

Lignin

Arabinan ExtractivesFree AshGalactan Glucan

8491 Sugarcane Bagasse Whole Biomass Feedstock 50 g 1.79 % 3.19 % 20.9 % 2.4 % 1.49 % 3.45 % 0.28 % 40.5 %

8492 Eastern Cottonwood Whole Biomass Feedstock 50 g 1.54 % 3.3 % 24 % 2.2 % 0.35 % 0.741 % 0.55 % 44.6 %

8493 Monterey Pine Whole Biomass Feedstock 50 g 1.44 % 1.4 % 25.6 % 1.4 % 1.09 % 0.17 % 1.89 % 43.7 %

8494 Wheat Straw Whole Biomass Feedstock 50 g 2.01 % 2.04 % 15 % 2.7 % 2.24 % 6.46 % 0.62 % 33.61 %

108.9(1) - Biomass Feedstock (Cont.)

RMs 8491, 8492, 8493, and 8494 are for use in evaluating the composition of lignocellulosic materials. 

SRM Description Unit Size Mannan Nitrogen Structural 

Sugars

Sucrose Total 

Component 

Closure

Total Lignin Water 

Extractives

Whole Ash Xylan

8491 Sugarcane Bagasse Whole Biomass Feedstock 50 g 0 % 0.21 % 65.56 % 0.1 % 102.4 % 24.4 % 4.1 % 3.84 % 22.04 %

8492 Eastern Cottonwood Whole Biomass Feedstock 50 g 2.16 % 0.17 % 61 % 0.045 % 99.4 % 27.2 % 2.9 % 0.96 % 13.39 %

8493 Monterey Pine Whole Biomass Feedstock 50 g 10.31 % 0.16 % 62.8 % 0.03 % 100.2 % 28.2 % 3.68 % 0.27 % 5.94 %

8494 Wheat Straw Whole Biomass Feedstock 50 g 0 % 0.54 % 56.3 % 1.35 % 100.9 % 18.1 % 15.1 % 9.91 % 19.3 %

108.9(2) - Biomass Feedstock 

RM 8495 and 8496 are for use in studies of the properties of fibers and paper sheets. Each RM is characterized for selected pulp characteristics 

(Lap Sheet, Handsheet, Fiber Analysis, Fines, and Chemical composition, PFI Beating curve and Tappi standard). See Report of Investigation.

SRM Description Unit Size

8495 Northern Softwood 10 sheets

8496 Eucalyptus Hardwood 10 sheets
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Standard Reference Materials 

for Engineering Materials

109. Organics

95
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109.1 - Organics 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue dioxins/

furans

elements fatty 

acids

matrix Me-Hg misc nitroPAHsPAHs PBDEs PCBs pesticides solution sugars

869b Column Selectivity Test Mixture for Liquid Chromatography 5 x 1.1 mL X

870 Column Performance Test Mixture of Liquid Chromatography 5 x 1.1 mL X X

1491a Methyl-Substituted Polycyclic Aromatic Hydrocarbons in Toluene 5 x 1.2 mL X X

1492 Chlorinated Pesticides/Hexane 5 x 1.2 mL X X

1493 PCB Congeners 5 x 1.2 mL X X

1494 Aliphatic Hydrocarbons 5 x 1.2 mL X X

1543 GC/MS System Performance 4 x 1 mL X

1580 Organics in Shale Oil 5 x 1.2 mL X X

1582 Petroleum Crude Oil 5 x 1.2 mL X X X

1584 Priority Pollutant Phenols in Methanol 5 x 1.2 mL X X

1586 Isotope Label Pollutants 6 x 2 mL X X

1588c Organics in Fish Oil 5 x 1.2mL X X X X X

1596 Dinitropyrene Isomers and 1-Nitropyrene in Methylene Chloride 5 x 1.3 mL X X

1597a Complex Mixture of Polycyclic Aromatic Hydrocarbons Coal Tar 3 x 1.3 mL X X

1614 Dioxin in Isooctane 6 x 1.2 mL X X

1639 Halocarbons (in Methanol) 5 x 1.2 mL X X

1647e Priority Pollutant PAHs (in Acetonitrile) set (5) X

1649b Urban Dust 2 g X X X X X X X

1650b Diesel Particulate Matter 200 mg X X X X

1939a PCBs in River Sediment A 50 g X X X

1941b Organics in Marine Sediment 50 g X X X X X

1944 New York/New Jersey Waterway Sediment 50 g X X X X X X X X

1945 Organics in Whale Blubber 2 x 15 g X X X X

1946 Lake Superior Fish Tissue 5 x 7-9 g X X X X X X X X

1947 Lake Michigan Fish Tissue 5 x 8 g X X X X X X X X

1953 Organic Contaminants in Non-Fortified Human Milk 5 x 5 mL X X X X X X

1954 Organic Contaminants in Fortified Human Milk 5 x 5 mL X X X X X X

1957 Organic Contaminants in Non-Fortified Human Serum 5 x 10 mL X X X X

1958 Organic Contaminants in Fortified Human Serum 5 x 10 mL X X X X

1974c Organics in Mussel Tissue, (Mytilus edulis) 5 x 10 g X X X X X

1975 Diesel Particulate Extract 4 x 1.2 mL X X X

2257 PBDE Congeners in 2,2,4-Trimethylpentane 5 x 1.2 mL X X

2258 BDE 209 in 2,2,4-Trimethylpentane 5 x 1.2 mL X X

2259 PCB Congeners in 2,2,4-Trimethylpentane 5 x 1.2mL X X
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109.1 - Organics (Cont.) 

SRM Description Unit of Issue dioxins/

furans

elements fatty 

acids

matrix Me-Hg misc nitroPAHsPAHs PBDEs PCBs pesticides solution sugars

2260a Aromatic Hydrocarbon in Toluene 5 x 1.2 mL X X

2261 Chlorinated Pesticides in Hexane 5 x 1.2 mL X X

2262 Chlorinated Biphenyl Cogeners in Isooctane 5 x 1.2 mL X X

2264 Nitrated Aromatic Hydrocarbons in Methylene Chloride I 5 x 1.2 mL X X

2265 Nitrated Polycyclic Hyrocarbons in Methylene Chloride II 5 x 1.2 mL X X

2266 Hopanes and Steranes in, 2,2,4 Trimethylpentane 5 x 1.2 mL X X

2267 Deuterated Levoglucosan in Ethyl Acetate 5 x 1.2 mL X X

2268 Carbon-13 Labeled Levoglucosan in Ethyl Acetate 5 x 1.2 mL X X

2269 Perdeuterated PAH-I Solution in Hexane/Toluene 5 x 1.2 mL X X

2270 Perdeuterated PAH-II Solution in Hexane/Toluene 5 x 1.2 mL X X

2273 Chlorinated Pesticides (DDTs) and Metabolites in Isooctane 5 x 1.2 mL X X

2274 PCB Congener Solution-II in Isooctane 5 x 1.2 mL X X

2275 Chlorinated Pesticide Solution-II in Isooctane 5 x 1.2 mL X X

2276 Three Planar Polychlorinated Biphenyl (PCB) Congeners in Isooctane 5 x 1.2 mL X X

2377 Fatty Acid Methyl Esters in, 2,2,4-Trimethylpentane 5 x 1.2 mL X X

2585 Organic Contaminants in House Dust 10 g X X X X X

2779 Gulf of Mexico Crude Oil 5 x 1.2 mL X X X

2786 Fine Particulate Matter (<4 μm) 100 - 140 mg X X X X X X X

2787 Fine Particulate Matter ( <10 μm) 100 - 140 mg X X X X X X X

2974a Organics in Freeze-Dried Mussel Tissue (Mytilus edulis) 5 g X X X X X X

2975 Diesel Particulate Matter 1 g X X X X

3257 Catechin Calibration Solution 12 x 2 mL X X

3266 Hypericin Calibration Solution 5 x 1.2 mL X X

8466 Y-HCH (Lindane) 100 mg X

8467 4,4’-DDE 100 mg X

8469 Pesticide, 4,4’-DDT 100 mg X

NOTE 1566b and 2976 also have methylmercury values assigned

Also, see page 1 of the Environmental Brochure (NIST SRMs for Environmental Materials) for the listing of the 3000 series calibration solutions and components.

“X” indicates parameter is characterized. See certificate for futher details regarding values.
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109.3 - EPA: Organic Compounds Related to Water Analysis (including drinking water)

These SRMs are intended primarily for the calibration of instrumentation and validation of methods for volatile or semi-volatile organic compound determinations. Because of its 

miscibility with water, each SRM can also be used to fortify aqueous samples with known amounts of the organic compound. These SRMs were developed by the NIST Analytical 

Chemical Science Division (CSD) primarily to support the Chemical Calibration Providers of the Proficiency Testing Program with support by the U.S. Environmental 

Protection Agency (EPA).

To see related SRMs, go to:

Table 104.3 Stoichiometry (powder form)

Table 104.5 Spectrometry, Single Element Standard Solutions

Table 104.8 Anion Chromatography (solution form)

Table 201.1 pH Calibration (powder form)

Laboratory Accreditation: NVLAP - National Voluntary Laboratory Accreditation Program

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue

3000 Benzene in Methanol 2 x 2.5 mL

3001 Toluene in Methanol 2 x 2.5 mL

3002 Ethylbenzene in Methanol 2 x 2.5 mL

3003 o-Xylene in Methanol 2 x 2.5 mL

3004 m-Xylene in Methanol 2 x 2.5 mL

3005 p-Xylene in Methanol 2 x 2.5 mL

3006 Carbon Tetrachloride in Methanol 2 x 2.5 mL

3008 Methylene Chloride in Methanol (Nominal Mass Fraction, 0.01 g/g) 2 x 2.5 mL

3009 1,2-Dichloropropane in Methanol (Nominal Mass Fraction - 0.01 g/g) 2 x 2.5 mL

3010 Tetrachloroethene (Tetrachloroethylene) in Methanol 2 x 2.5 mL

3011 1,1,1-Trichloroethane in Methanol (Nominal Mass Fraction, 0.01 g/g) 2 x 2.5 mL

3012 1,2-Dichloroethane in Methanol (Nominal Mass Fraction, 0.01 g/g) 2 x 2.5 mL

3014 1,2,3-Trichloropropane in Methanol (Nominal Mass Fraction - 0.01 g/g) 2 x 2.5 mL

3015 Isopropylbenzene in Methanol 2 x 2.5 mL

3016 sec-Butylbenzene in Methanol 2 x 2.5 mL

3064 Endothall in Water 5 x 1.2 mL

3067 Toxaphene in Methanol 5 x 1.2 mL

3068 Chlordane in Methanol 5 x 1.2 mL

3074 Phthalates in Methanol 5 x 1.2 mL

3075 Aroclor 1016 in Transformer Oil 5 x 1.2 mL

3076 Aroclor 1232 in Transformer Oil 5 x 1.2 mL
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109.3 - EPA: Organic Compounds Related to Water Analysis (including drinking water) (Cont.)

SRM Description Unit of Issue

3077 Aroclor 1242 in Transformer Oil 5 x 1.2 mL

3078 Aroclor 1248 in Transformer Oil 5 x 1.2 mL

3079 Aroclor 1254 in Transformer Oil 5 x 1.2 mL

3080 Aroclor 1260 in Transformer Oil 5 x 1.2 mL

3081 Aroclor 1016 in Methanol 5 x 1.2 mL

3082 Aroclor 1232 in Methanol 5 x 1.2 mL

3083 Aroclor 1242 in Methanol 5 x 1.2 mL

3084 Aroclor 1248 in Methanol 5 x 1.2 mL

3085 Aroclor 1254 in Methanol 5 x 1.2 mL

3086 Aroclor 1260 in Methanol 5 x 1.2 mL

3090 Aroclors in Transformer Oil set (SRMs 3075-3080)

3091 Aroclors in Methanol set (SRMs 3081-3086)

8504 Transformer Oil 100 mL
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109.4 - Crime Scene Investigations 

SRM 2285 is intended primarily for use in the calibration of chromatographic instrumentation used for the classification of an ignitable liquid residue. This SRM is a solution of 

15 compounds, including even carbon number aliphatic hydrocarbons from hexane to tetracosane, toluene, p-xylene, 2-ethyltoluene, 3-ethyltoluene, and 1,2,4-trimethylbenzene 

in methylene chloride.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Measurand

2285 Arson Test Mixture in Methylene Chloride 5 x 1.2 mL 15 constituents

2460 Standard Bullet each Cross Correlation Function Mass,

Signature Difference

2461 Standard Cartridge Case each Cross Correlation Function Max,

Signature Difference

2905 Trace Particulate Explosive Simulants 4 x 1 g RDX, HMX, TNT

2906 Trace Explosives Calibration Solutions 3 sets of 4 ampoules RDX, PETN, TNT

2907 Trace Terrorist Explosives Simulants Set (2) TATP, PETN (Semtex 1A)

8107 Additives in Smokeless Powder 5 g NG, DPA, NnDPA, EC
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Standard Reference Materials 

for Chemical Composition

110. Food and Agriculture

101
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- Values in parentheses are for information only

110.1 - Foods and Beverages 

These SRMs are for validation of analytical procedures and calibration of apparatus used in the analysis of trace elements and other analytes in foods and related products.

For Related SRMs see: Table 110.9

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue

1544 Fatty Acids/Cholesterol in Frozen Diet Composite 4 x 15 g

1546 Meat Homogenate 4 x 85 g

1548a Typical Diet set (2)

1549 Non-Fat Milk Powder 100 g

1566b Oyster Tissue 25 g

1567a Wheat Flour 80 g

1568a Rice Flour 80 g

1570a Trace Elements in Spinach Leaves 60 g

1577c Bovine Liver 20 g

1845 Cholesterol in Whole Egg Powder 35 g

1849a Infant/Adult Nutritional Formula 10 x 10 g

1946 Lake Superior Fish Tissue 5 x 7-9 g

1947 Lake Michigan Fish Tissue 5 x 8 g

2383 Baby Food Composite 4 x 70 g

2384 Baking Chocolate 5 x 91 g

2385 Baking Chocolate 4 x 70 g

2387 Peanut Butter 3 x 170 g

3233 Fortified Breakfast Cereal 2 x 60 g

3234 Soy Flour 50 g

3254 Camellia sinensis (Green Tea) Leaves 5 x 3 g

3255 Camellia sinensis (Green Tea) Extract 5 x 1 g

3276 Carrot Extract in Oil 5 x 1 mL

3278 Tocopherols in Edible Oils 5 x 1 mL

3281 Cranberry (fruit) 5 x 6 g

3282 Low-Calorie Cranberry Juice Cocktail 5 x 1.2 mL

3287 Blueberry (Fruit) 5 x 5 g
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110.1(1) - Foods and Beverages 

1544 1546 1548a 1549 1566b 1567a 1568a 1570a 1577c

Description >> Fatty Acids/Cholesterol

in Frozen Diet

Composite

Meat

Homogenate Typical Diet

Non-Fat

Milk Powder Oyster Tissue Wheat Flour Rice Flour

Trace Elements

in Spinach Leaves Bovine Liver

Unit Size >> 4x15 g 4x85 g set (2) 100 g 25 g 80 g 80 g 60 g 20 g

Ash 1.0 3.21 4.042 3.87 14.66

Calories (kcal/100 g) 1221 252 481

Carbohydrate 16.9 1.77 58.36

Dietary Fiber-Total 6.5 30.5

Fat 3.7 21.0 19.41

Moisture 73.1 4.6 3.45

Protein 5.3 14.9 18.08 42.6 35.8

Solids 40.5 95.4 96.55

Sucrose 17.7

Sum of Fatty Acids 19.7

Amino Acids X

Cholesterol X X

Elements X X X X X X X X X

Fatty Acids X X

Methylmercury X

Vitamins X

Nutritional Constituent Concentrations are mass fractions (in %)

“X” indicates parameter is characterized. See certificate for futher details regarding certified, reference, or information values.
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110.1(2) - Foods and Beverages

1845 1849a 1946 1947 2383 2384 2385 2387

Description >> Cholesterol in Whole

Egg Powder

Infant/Adult

Nutritional Formula

Lake Superior

Fish Tissue

Lake Michigan

Fish Tissue

Baby Food

Composite Baking Chocolate Slurried Spinach Peanut Butter

Unit Size >> 35 g 10 x 10 g 5 x 7-9 g 5 x 8 g 4 x 70 g 5 x 91 g 4 x 70 g 3 x 170 g

Ash 4.695 1.10 1.07 1.09 2.78 0.97 3.10

Calories (kcal/100 g) 520.8 159 152 166.5 631.0 18.16 629

Carbohydrate 51.6 (0.93) (0.9) 27.49 2.73 25.0

Dietary Fiber-Total 14.5 1.55 5.56

Fat 30.43 10.17 10.4 4.67 51.4 51.6

Moisture 71.4

Protein 13.72 17.8 17.0 3.89 13.18 1.42 22.2

Solids 98.28 28.6 27.1 37.19 98.37 5.28 99.2

Sum of Fatty Acids 29.10 8.76 8.50 0.20

Acrylamide X

Aflatoxins X

Amino Acids X

Caffeine X

Catechins X

Cholesterol X X

Contaminants X X

Elements X X X X X

Fatty Acids X X X X

Methylmercury X X

Nucleotides X

Procyanidins X

Theobromine X

Tocopherols X

Vitamins X X X

“X” indicates parameter is characterized. See certificate for futher details regarding certified, reference, or information values.
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110.1(3) - Foods and Beverages

3233 3234 3254 3255 3276 3278 3281 3282 3287

Description >>

Fortified Breakfast

Cereal Soy Flour

Camellia sinensis

(Green Tea) Leaves

Camellia sinensis

(Green Tea) Extract

Carrot Extract

in Oil

Tocopherols

in Edible Oils

Cranberry

(fruit)

Low-Calorie

Cranberry Juice

Cocktail

Blueberry

(Fruit)

Unit Size >> 2 x 60 g 50 g 5 x 3 g 5 x 1 g 5 x 1 mL 5 x 1 mL 5 x 6 g 5 x 1.2 mL 5 x 5 g

Ash 11.87 6.77 1.126

Calories (kcal/100 g) 362.4 377.7 392

Carbohydrate 77.88 37.14 91.92

Dietary Fiber-Total 12.24 18.19 18.4

Fat 1.40

Fructose 0.81 4.51 2.08 30.5

Glucose 1.04 21.6 0.85 30.5

Maltose 0.46

Protein 7.25 53.37 3.43

Solids 99.09 98.91 98.59

Sucrose 13.42

Sum of Fatty Acids 2.02 1.49

Total Sugars 15.8 26.2 2.86 60.4

Amino Acids X X X

Antioxidant Capacity X

Ascorbic Acid X

Caffeine X X

Catechins X X

Elements X X X X

Fatty Acids X X

Organic Acids X X

Phosphate (PO4

3-) X

Sulfate X

Theobromine X X

Tocopherols X X

Vitamins X X

“X” indicates parameter is characterized. See certificate for futher details regarding certified, reference, or information values.
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110.2 - Food Contaminants and Allergens 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source. 

1566b 1946 1947 1953 1954 2387 3256 8445 8642

Description >>

Oyster Tissue

Lake Superior

Fish Tissue

Lake Michigan

Fish Tissue

Organic

Contaminants

in Non-Fortified

Human Milk

Organic

Contaminants

in Fortified

Human Milk Peanut Butter

Green TeaContaining

Solid Oral

Dosage Form

Spray-Dried

Whole Egg for

Allergen Detection

FDA Saxitoxin

Dihydrochloride

Solution

Unit Size >> 25 g 5 x 7-9 g 5 x 8 g 5 x 5 mL 5 x 5 mL 3 x 170 g 5 x 2.5 g 5 g 10 x 1.2 mL

Acrylamide X

Aflatoxin X

Amino Acids X

Caffeine X

Catechins X

Elements X X X X X X X

Fatty Acids X

Methylmercury X X X

PBB X X

PBDE X X X X

PCBs X X X X

PCDD and PCDF X X

Pesticides X X X X

PFOS X X

Proximate X X X X X (protein only)

Saxitoxin Dihyrochloride X

Theobromine X

Tocopherols X

Vitamins X

“X” indicates parameter is characterized. See certificate for values.
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110.3 - USA/Canada Collaborative Materials (powder form) 

These materials, developed by Agriculture Canada in collaboration with NIST, are intended for use in evaluating analytical methods and instruments used for the determination 

of major, minor, and trace constituent elements, as well as proximates selected fatty acids (where appropriate), calories and vitamins in food/agricultural commodities.

NOTE: These materials are no longer available from NIST. 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

8412 8413 8414 8415 8418 8432 8433 8436 8437 8438

Description >> Corn Stalk

(Zea mays)

Corn Kernel

(Zea mays)

Bovine Muscle

Powder (Beef)

Whole Egg

Powder Wheat Gluten Corn Starch Corn Bran

Durum Wheat

Flour

Hard Red Spring

Wheat Flour

Soft Winter

Wheat Flour

Unit of Issue >> 34 g 47 g 50 g (2) 35 g 50 g 50 g 50 g 50 g 50 g 50 g

Aluminum (4) 1.7 540 10.8 1.9 1.01 11.7 (2.1) (2.3)

Antimony (0.01) (0.002) (0.01) (0.004)

Arsenic 0.009 (0.01) (0.02) (0.002) (0.03)

Barium (0.05) (3) 1.53 2.40 2.11 (0.4) (1)

Boron 0.6 0.41 (0.4) 2.8 (0.2) (0.1)

Bromine 1.1 (3.6) 2.3 6.6

Cadmium 0.013 (0.005) 0.064 0.0003 0.012 0.11 (0.02) (0.03)

Calcium 0.216* 42 145 0.248* 369 56 420 278 143 240

Cesium (0.05)

Chlorine 0.244* (450) 0.188* 0.508* 0.362* 45 31 680 500 640

Chromium 0.071 0.37 0.053 (0.02) 0.11 0.023 (0.026) (0.032)

Cobalt 0.007 0.012 0.010 0.0012 0.006 0.008

Copper 8 3.0 2.84 2.70 5.94 0.06 2.47 4.30 (2.01) (1.2)

Fluorine (0.65) (0.24) (0.22) (0.43) (0.02) (0.1) (0.02) (0.04)

Iodine 0.035 1.97 0.060 0.026 0.006

Iron 139 (23) 71.2 112 54.3 (5) 14.8 41.5 31 (29)

Lead 0.38 0.061 0.10 (0.007) 0.140 0.023

Magnesium 0.160* 0.0990* 960 305 510 31 818 0.107* 365 214

Manganese 15 4.0 0.37 1.78 14.3 0.10 2.55 16.0 4.50 5.4

Mercury 0.005 0.004 0.0019 0.0011 0.003 0.0004 (0.004) (0.002)
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108

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- Reference values are italicized

- Values in parentheses are for information only

110.3 - USA/Canada Collaborative Materials (powder form) (Cont.)

NOTE: These materials are no longer available from NIST. 

8412 8413 8414 8415 8418 8432 8433 8436 8437 8438

Description >> Corn Stalk

(Zea mays)

Corn Kernel

(Zea mays)

Bovine Muscle

Powder (Beef)

Whole Egg

Powder Wheat Gluten Corn Starch Corn Bran

Durum Wheat

Flour

Hard Red Spring

Wheat Flour

Soft Winter

Wheat Flour

Unit of Issue >> 34 g 47 g 50 g (2) 35 g 50 g 50 g 50 g 50 g 50 g 50 g

Molybdenum 0.08 0.247 0.76 0.02 0.252 0.70 (0.55) (0.29)

Nickel 0.05 0.13 0.02 0.158 0.17 (0.2)

Nitrogen (6970) (13750) 13.75* 6.30* 14.64* 680 0.882* 2.709* 2.690* 1.756*

Phosphorus 0.836* 1.001* 0.219 * 178 171 0.290* 0.137* 0.108

Potassium 1.735* 0.357* 1.517* 0.319* 472 45 566 0.318* 0.115* 0.148

Rubidium 28.7 (0.4) 0.5 2.0

Selenium (0.016) (0.004) 0.076 1.39 2.58 (0.0009) 0.045 1.23 0.56 0.076

Sodium (28) 0.210* 0.377* 0.142* 119 430 16.0 (7) (7)

Strontium 12 0.052 5.63 1.71 (0.18) 4.62 1.19 (4)

Sulfur 0.795* 0.512* 0.845* (200) 860 0.193* 0.183* 0.126*

Titanium (2) (5)

Tungsten (0.001) (0.01)

Vanadium (0.005) 0.459 (0.04) 0.005 0.021 (0.02) (0.03)

Zinc 32 15.7 142 67.5 53.8 0.22 18.6 22.2 10.6 (5.8)
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109

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- Reference values are italicized

- Values in parentheses are for information only

110.4 - Agricultural Materials (powder form) 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. For specific values and 

uncertainties, the certificate is the only official source.

1515 1547 1570a 1573a 1575a 2695 8412 8413

Description >>

Apple Leaves Peach Leaves

Trace Elements in

Spinach Leaves Tomato Leaves

Trace Elements

in Pine Needles Fluoride in Vegetation Corn Stalk (Zea mays) Corn Kernel (Zea mays)

Unit Size >> 50 g 50 g 60 g 50 g 50 g 2 x 25 g (1 ea conc) 34 g 47 g

Elemental Composition as mass fraction in mg/kg (ppm) unless noted by an * asterisk for %.

Aluminum 286 249 310 598 580 (4)

Antimony (0.013) (0.02) 0.063

Arsenic 0.038 0.060 0.068 0.112 0.039

Barium 49 124 (63) 6.0

Boron 27 29 37.6 33.3 9.6

Bromine (1.8) (11) (1300)

Cadmium (0.013) (0.026) 2.89 1.52 0.233

Calcium 1.526* 1.56* 1.527* 5.05* 0.25* 0.216* 42

Cerium (3) (10) (2) (0.11)

Cesium (53) 0.283

Chlorine 579 360 (6600) 421 0.244* (450)

Chromium (0.3) (1) 1.99 (0.3-0.5)

Cobalt (0.09) (0.07) 0.39 0.57 0.061

Copper 5.64 3.7 12.2 4.70 2.8 8 3.0

Europium (0.2) (0.17) 0.0055

Fluorine 64 / 277 (0.65) (0.24)

Gadolinium (3) (1) (0.17)

Gold (0.001)

Hydrogen (5.2*)

Iodine (0.3) (0.3) (0.85)

Iron (83) (218) 368 46 139 (23)

Lanthanum (20) (9) (2.3)

Lead 0.470 0.87 (0.20) 0.167

Magnesium 0.271* 0.432* (0.89*) (1.2*) 0.106* 0.160* 0.0990*

Manganese 54 98 75.9 488 15 4.0

Mercury 0.044 0.031 0.030 0.034 0.0399

Molybdenum 0.094 0.060 (0.46)

Neodymium (17) (7)
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110

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- Reference values are italicized

- Values in parentheses are for information only

110.4 - Agricultural Materials (powder form) (Cont.)

1515 1547 1570a 1573a 1575a 2695 8412 8413

Description >>

Apple Leaves Peach Leaves

Trace Elements in

Spinach Leaves Tomato Leaves Tomato Leaves Fluoride in Vegetation Corn Stalk (Zea mays) Corn Kernel (Zea mays)

Unit Size >> 50 g 50 g 60 g 50 g 50 g 2 x 25 g (1 ea conc) 34 g 47 g

Elemental Composition as mass fraction in mg/kg (ppm) unless noted by an * asterisk for %.

Nickel 0.91 0.69 2.14 1.59 1.47

Nitrogen 2.25* 2.94* 6.06* 3.03* (6970) (13750)

Phosphorus 0.159* 0.137* 0.518* 0.216* 0.107*

Potassium 1.61* 2.43* 2.903* 2.70* 0.417* 1.735* 0.357*

Rubidium 10.2 19.7 12.7 14.89 16.5

Samarium (3) (1) (0.19)

Scandium (0.03) (0.04) 0.0055 (0.1) 0.0101

Selenium 0.050 0.120 0.117 0.054 0.099 (0.016) (0.004)

Sodium 24.4 24 1.818* 136 63 (28)

Strontium 25 53 55.6 (85) 12

Sulfur (0.18*) (0.2*) (0.46*) (0.96*)

Terbium (0.4) (0.1)

Thorium (0.03) (0.05) 0.048 (0.12)

Tin (< 0.2) (< 0.2)

Tungsten (0.007)

Uranium (0.006) (0.015) 0.155 (35)

Vanadium 0.26 0.37 0.57 0.835

Ytterbium (0.3) (0.02)

Zinc 12.5 17.9 82 30.9 38 32 15.7
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111

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- Reference values are italicized

- Values in parentheses are for information only

110.5 - Fertilizers (powder form) 

These SRMs are intended for use in the fertilizer industry as working standards.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

120c 193 194 200b 694 695

Description >>

Phosphate Rock

(Florida)

Potassium

Nitrate

Ammonium

Dihydrogen

Phosphate

Potassium Dihydrogen

Phosphate, (KH2PO4)

Phosphate Rock,

Western

Trace Elements in

Multi-Nutrient Fertilizer

Unit Size >> 90 g 90 g 90 g 90 g 90 g 70 g

(Concentrations are in mass fractions, in mg/kg, unless noted by an asterisk for %)

Al2O3 1.8

Cr2O3 (0.10)

Fe2O3 0.79

K2O 0.147 0.51

Na2O 0.86

P2O5 33.34 30.2

SiO2 11.2

TiO2 (0.11)

V2O5 0.31

Aluminum 0.61

Arsenic 200

Boron 0.111

Cadmium 16.9

Cadmium oxide 0.015

Calcium 2.26

Calcium oxide 48.02 43.6

Chlorine (4.6*)

Chromium 244

Cobalt 65.3

Copper 1225

Fluorine 3.2

Iron (total) 3.99
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112

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- Reference values are italicized

- Values in parentheses are for information only

110.5 - Fertilizers (powder form) (Cont.)

120c 193 194 200b 694 695

Description >>

Phosphate Rock

(Florida)

Potassium

Nitrate

Ammonium

Dihydrogen

Phosphate

Potassium Dihydrogen

Phosphate, (KH2PO4)

Phosphate Rock,

Western

Trace Elements in

Multi-Nutrient Fertilizer

Unit Size >> 90 g 90 g 90 g 90 g 90 g 70 g

(Concentrations are in mass fractions, in mg/kg, unless noted by an asterisk for %)

Lead 273

Magnesium 1.79

Magnesium oxide 0.33

Manganese 0.305

Manganese oxide 0.0116

Mercury 1.955

Molybdenum 20.0

Nickel 135

Nitrogen 13.85 12.15 13.9

Phosphorus 26.92 22.769 7.2

Potassium 38.66 28.735 11.65

Selenium 2.1

Sodium 0.405

Tin

Titanium (310)

Tungsten

Uranium 0.01414

Vanadium 122

Zinc 0.325

110.6 - Wheat Hardness (kernel form) 

This RM is intended primarily for calibrating instruments used to determine the hardness of bulk or single kernel wheat. RM 8441 was prepared and analyzed by the Federal Grain 

Inspection Service program, Grain Inspection Packers and Stockyards Administration of the United States Department of Agriculture.’

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Unit Size Unit Size

8441a Wheat Hardness set (50) Soft-1 through Soft-5: 5 x 5 pouches (20g/pouch) Hard-1 through Hard-5: 5 x 5 pouches (20g/pouch)
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113

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- Reference values are italicized

- Values in parentheses are for information only

110.9 - Dietary Supplement Materials (includes nutraceuticals and herbs) 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

Organic Constituent Concentrations are in mg/g and Elements are in μg/g (also known as mg/kg) unless otherwise noted

SRM Description Unit Size Antioxidant 

Capacity

Alkaloids Amino 

Acids

Anions Caffeine Calories Carotenoids Catechins Elements

3246 Ginkgo biloba (Leaves) 5 x 3 g X

3247 Ginkgo biloba Extract 5 x 1 g X

3248 Ginkgo-Containing Tablets 5 x 1 g X

3249 Ginkgo Dietary Supplement Suite 2 each: SRMs 3246-3248 X

3250 Serenoa repens (Fruit) 5 x 6 g

3251 Serenoa repens Extract 5 x 1 mL

3254 Camellia sinensis (Green Tea) Leaves 5 x 3 g X X X

3255 Camellia sinensis (Green Tea) Extract 5 x 1 g X X X

3256 Green Tea-Containing Solid Oral Dosage Form 5 x 2.5 g X X X

3257 Catechin Calibration Solution 12 x 2 mL X

3258 Bitter Orange (Fruit) 5 x 5 g X X

3259 Bitter Orange Extract 5 x 1.2 g X X

3260 Bitter Orange-Containing Solid Oral Dosage Form 5 x 2.5 g X X X

3261 Bitter Orange Dietary Supplemental Suite 2 each: SRMs 3258-3260 X X X

3266 Hypericin Calibration Solution 5 x 1.2 mL

3274 Botanical Oils Containing Omega-3 and Omega-6 FattyAcids 4 x 1.2 mL

3275 Omega-3 and Omega-6 Fatty Acids in Fish Oil 2 x 1.2 ml

3280 Multivitamin/Multielement Tablets 5 x 30 tablets X X

3281 Cranberry (Fruit) 5 x 6 g X X X

3282 Low-Calorie Cranberry Juice Cocktail 5 x 1.2 mL X X

3283 Cranberry Extract 5 x 2.5 g X X

3284 Cranberry-Containing Solid, Oral Dosage Form 5 x 2.5 g X X

3285 Mixed Berry-Containing Solid Oral Dosage Form 5 x 2.5 g X X

3286 Organic Acids Calibration Standard 5 x 2 mL

3291 Bilberry Extract 5 x 1 g X X

“X” indicates parameter is characterized. See certificate for futher details regarding certified, reference, or information values.values.
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114

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- Reference values are italicized

- Values in parentheses are for information only

110.9 - Dietary Supplement Materials (includes nutraceuticals and herbs) (Cont.)

Organic Constituent Concentrations are in mg/g and Elements are in μg/g (also known as mg/kg) unless otherwise noted

SRM Description Unit Size Ephedrine 

Alkatoids

Fatty 

Acids

Flavonoid 

Aglycones

Hypericin Organic 

Acids

Proximates Sugars Terpene 

Lactones

(Ginkgolides)

Theobromine Vitamins

3246 Ginkgo biloba (Leaves) 5 X 3 g X X

3247 Ginkgo biloba Extract 5 x 1 g X X

3248 Ginkgo-Containing Tablets 5 x 1 g X X

3249 Ginkgo Dietary Supplement Suite 2 each:SRMs 3246-3248 X X

3250 Serenoa repens (Fruit) 5 x 6 g

3251 Serenoa repens Extract 5 x 1 mL

3254 Camellia sinensis (Green Tea) Leaves 5 x 3 g X

3255 Camellia sinensis (Green Tea) Extract 5 x 1 g X

3256 Green Tea-Containing Solid Oral Dosage Form 5 x 2.5 g X

3257 Catechin Calibration Solution 12 x 2 mL

3258 Bitter Orange (Fruit) 5 x 5 g

3259 Bitter Orange Extract 5 x 1.2 g

3260 Bitter Orange-Containing Solid Oral Dosage Form 5 x 2.5 g

3261 Bitter Orange Dietary Supplemental Suite 2 each SRMs 3258-3260

3266 Hypericin Calibration Solution 5 x 1.2 mL X

3274 Botanical Oils Containing Omega-3

and Omega-6 FattyAcids

4 x 1.2 mL 4 levels

3275 Omega-3 and Omega-6 Fatty Acids in Fish Oil 2 x 1.2 ml 3 levels

3280 Multivitamin/Multielement Tablets 5 x 30 tablets X

3281 Cranberry (Fruit) 5 x 6 g X X

3282 Low-Calorie Cranberry Juice Cocktail 5 x 1.2 mL X X

3283 Cranberry Extract 5 x 2.5 g X

3284 Cranberry-Containing Solid, Oral Dosage Form 5 x 2.5 g X

3285 Mixed Berry-Containing Solid Oral Dosage Form 5 x 2.5 g X

3286 Organic Acids Calibration Standard 5 x 2 mL X

3291 Bilberry Extract 5 x 1 g X

“X” indicates parameter is characterized. See certificate for futher details regarding certified, reference, or information values.values.
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Standard Reference Materials 

for Chemical Composition

111. Geological Materials and Ores

115
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116

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- Reference values are italicized

- Values in parentheses are for information only

111.2 - Ores (powder form)

This table is provided in 3 parts to facilitate viewing and printing of data.

111.2(1) - Ores (powder form) 

111.2(2) - Ores (powder form) 

111.2(3) - Ores (powder form) Phosphate Rocks and Bauxites

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size

25d Manganese Ore 60 g

69b Bauxite (Arkansas) 60 g

79a Fluorspar, Customs Grade 120 g

113b Zinc Concentrate 100 g

120c Phosphate Rock (Florida) 90 g

180 Fluorspar, High Grade 120 g

181 Lithium Ore (Spodumene) 45 g

182 Lithium Ore (Petalite) 45 g

183 Lithium Ore (Lepidolite) 45 g

277 Tungsten Concentrate 100 g

330a Copper Ore Mill Heads 90 g

331a Copper Ore Mill Tails 40 g

333a Molybdenum Sulfide Concentrate 60 g

423 Molybdenum Oxide Concentrate 60 g

600 Bauxite, Australian-Darling Range 90 g

670 Rutile Ore 90 g

690 Iron Ore Canada 100 g

691 Iron Oxide, Reduced 100 g

692 Iron Ore, Labrador 100 g

693 Iron Ore, Nimba 100 g

694 Phosphate Rock, Western 90 g

696 Bauxite, Surinam 60 g

697 Bauxite, Dominican 60 g

698 Bauxite, Jamaican 60 g

699 Alumina (Reduction Grade) 60 g

886 Gold, Ore Refractory 200 g

1835 Borate Ore 60 g

2430 Scheelite Ore 100 g
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- Values in parentheses are for information only

111.2(1) - Ores (powder form) 

25d 79a 113b 180 181 182 183 277 330a 331a 333a 423

Description >>

Manganese

Ore

Fluorspar,

Customs

Grade

Zinc

Concentrate

Fluorspar,

High Grade

Lithium Ore

(Spodumene)

Lithium Ore

(Petalite)

Lithium Ore

(Lepidolite)

Tungsten

Concentrate

Copper Ore

Mill Heads

Copper Ore

Mill Tails

Molybdenum

Sulfide

Concentrate

Molybdenum

Oxide

Concentrate

Unit Size >> 60 g 120 g 100 g 120 g 45 g 45 g 45 g 100 g 90 g 40 g 60 g 60 g

(Concentrations are in mass fractions, in %, unless noted by an asterisk for mg/kg)

Aluminum 7.053 7.92

Aluminum oxide 5.33

Antimony (0.001) (0.0024)

Arsenic (0.015)

Barium 0.156

Barium oxide (0.21)

Bismuth (0.003) (0.006)

Cadmium 0.7804 3.391* (0.1)

Calcium 0.8196 (0.37) 0.323 1.552 (0.12)

Calcium fluoride 97.39 98.80

Calcium oxide (0.052)

Carbon 565* (0.025)

Cerium 22.32* 9.6*

Chromium 77.0* 13.9* (0.005) (0.0034)

Cobalt 4.542* 12.6*

Copper 0.2953 0.845 789* 0.0600 0.0640

Gallium 17.4* 16.3*

Gold 0.121*

Iron 2.077 (7.4) 1.06 4.207 1.022 1.708

Iron oxide 3.91

Lead 2.731 (0.07) (27*) (6) 0.0111 0.0433

Lithium 22.19*

Lithium oxide 6.39 4.34 4.12

Magnesium 0.4460 0.868 1.623 (0.02) (0.10)

Manganese 51.78 (10.0) 497* (0.002) (0.009)

Mercury (0.55*) 0.00184*

Moisture (1)

Molybdenum (0.06) (4.5*) 3.2* 54.86 58.68

Nickel 28.95* 8.1*

Niobium (1.00) (5.7*)

Oxygen, available 14.283 (21.4)
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- Values in parentheses are for information only

111.2(1) - Ores (powder form) 

25d 79a 113b 180 181 182 183 277 330a 331a 333a 423

Description >>

Manganese

Ore

Fluorspar,

Customs

Grade

Zinc

Concentrate

Fluorspar,

High Grade

Lithium Ore

(Spodumene)

Lithium Ore

(Petalite)

Lithium Ore

(Lepidolite)

Tungsten

Concentrate

Copper Ore

Mill Heads

Copper Ore

Mill Tails

Molybdenum

Sulfide

Concentrate

Molybdenum

Oxide

Concentrate

Unit Size >> 60 g 120 g 100 g 120 g 45 g 45 g 45 g 100 g 90 g 40 g 60 g 60 g

(Concentrations are in mass fractions, in %, unless noted by an asterisk for mg/kg)

Phosphorus (0.03) (326*) (550)

Phosphorus pentoxide 0.251

Potassium 5.47 0.967 (0.06)

Potassium oxide 0.928

Rhenium 0.035 (0.004)

Scandium 5.693* 11.4*

Silicon (0.85) 33.4

Silicon dioxide 2.54

Silver 0.04607 (0.0013) (0.0029)

Sodium 0.657 3.15 (0.01) (0.2)

Strontium 218.1*

Sulfur 30.032 (0.25) 870* (37.7) (0.063)

Tantalum (.20)

Thorium (7.6*)

Tin (.54)

Titanium (2.2) (1223*) 0.228

Titanium dioxide 0.136

Tungsten trioxide 67.4

Vanadium (43*) 121* (0.0014) (0.0023)

Yttrium 20.01*

Zinc 56.49 94.9* 71.8* (0.002) (0.017)

Zirconium 80.5*
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119

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111.2(2) - Ores (powder form) 

670 690 691 692 693 886 1835 2430

Description >>

Rutile Ore

Iron Ore

Canada

Iron Oxide,

Reduced

Iron Ore,

Labrador

Iron Ore,

Nimba

Gold, Ore

Refractory Borate Ore Scheelite Ore

Unit Size >> 90 g 100 g 100 g 100 g 100 g 200 g 60 g 100 g

(Concentrations are in mass fractions, in %, unless noted by an asterisk for mg/kg)

Aluminum (0.4)

Aluminum oxide 0.18 1.22 1.41 1.04 3.474

Antimony (<0.01)

Arsenic (14*) 0.002

Barium oxide 0.0497

Bismuth 0.078

Boron oxide 18.739

Cadmium (<5*)

Calcium oxide 0.20 0.63 0.023 0.016 21.622

Carbon 0.12 (5.7)

Chromium (0.03)

Chromium oxide 0.23

Cobalt 0.030

Copper 0.032 (0.01)

Fluorine 0.348

Gold 8.25*

Iron 66.85 90.8 59.58 65.11 (1.0)

Iron oxide 0.86 1.141

Lead (<20*)

Loss on Ignition 25.724

Magnesium (0.5)

Magnesium oxide 0.18 0.52 0.035 0.013 3.411

Manganese (0.12)

Manganese oxide 0.23 0.043 0.46 0.091 0.0333

Molybdenum (<20*) 0.22

Nickel (0.3)

Nitrogen (50*)

Phosphorus 0.011 0.006 0.039 0.056 0.017

Potassium (0.06) 1.261 (0.16)

Potassium oxide 0.0030 0.039 0.0028

Silicon dioxide 0.51 3.71 3.7 10.14 3.87 18.408
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111.2(2) - Ores (powder form) (Cont.)

670 690 691 692 693 886 1835 2430

Description >>

Rutile Ore

Iron Ore

Canada

Iron Oxide,

Reduced

Iron Ore,

Labrador

Iron Ore,

Nimba

Gold, Ore

Refractory Borate Ore Scheelite Ore

Unit Size >> 90 g 100 g 100 g 100 g 100 g 200 g 60 g 100 g

(Concentrations are in mass fractions, in %, unless noted by an asterisk for mg/kg)

Sodium (0.02)

Sodium oxide 0.003 0.186 0.008 0.0028 3.484

Strontium oxide 0.9418

Sulfur 0.003 0.008 0.005 0.005 1.466 0.26

Sulfur trioxide 1.477

Tantalum (<0.01)

Tin (<10*)

Titanium dioxide 96.16 0.022 0.27 0.045 0.035 0.1332

Tungsten trioxide 70.26

Vanadium (135*)

Vanadium pentoxide 0.66

Zinc (40*)

Zirconium dioxide 0.84

111.2(3) - Ores (powder form) Phosphate Rocks and Bauxites

69b 120c 600 694 696 697 698 699

Description >> Bauxite

(Arkansas)

Phosphate Rock

(Florida)

Bauxite, AustralianDarling RangePhosphate Rock,

Western Bauxite, Surinam Bauxite, Dominican Bauxite, Jamaican

Alumina

(Reduction Grade)

Unit Size >> 60 g 90 g 90 g 90 g 60 g 60 g 60 g 60 g

(Concentrations are in mass fractions, in %, unless noted by an asterisk for mg/kg)

Aluminum oxide 48.8 1.30 40.0 1.8 54.5 45.8 48.2

Barium oxide (0.008) (0.004) (0.015) (0.008)

Beryllium 2.81*

Cadmium oxide 0.0010 0.015

Calcium oxide 0.13 48.02 0.22 43.6 0.018 0.71 0.62 0.036

Carbon dioxide 3.27

Cerium (0.024) (0.0041) (0.069) (0.030)

Chromium oxide 0.011 0.024 (0.10) 0.047 0.100 0.080 0.0002

Cobalt (0.0001) (0.00009) (0.0013) (0.0045)
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121

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- Reference values are italicized

- Values in parentheses are for information only

111.2(3) - Ores (powder form) Phosphate Rocks and Bauxites (Cont.)

69b 120c 600 694 696 697 698 699

Description >>

Bauxite (Arkansas)

Phosphate Rock

(Florida)

Bauxite, AustralianDarling RangePhosphate Rock,

Western Bauxite, Surinam Bauxite, Dominican Bauxite, Jamaican

Alumina

(Reduction Grade)

Unit Size >> 60 g 90 g 90 g 90 g 60 g 60 g 60 g 60 g

(Concentrations are in mass fractions, in %, unless noted by an asterik for mg/kg)

Fluorine 3.82 3.2

Gallium oxide 0.010

Iron oxide 7.14 1.08 17.0 0.79 8.70 20.0 19.6 0.013

Lithium oxide 0.002

Loss on Ignition 27.2 20.5 29.9 22.1 27.3 0.69

Magnesium oxide 0.085 0.32 0.05 0.33 0.012 0.18 0.058 0.0006

Manganese oxide 0.110 0.027 0.013 0.0116 0.004 0.41 0.38 0.0005

Phosphorus pentoxide 0.118 33.34 0.039 30.2 0.050 0.97 0.37 0.0002

Potassium oxide 0.068 0.147 0.23 0.51 0.009 0.062 0.010 (0.005)

Silicon dioxide 13.43 5.5 20.3 11.2 3.79 6.81 0.69 0.0120

Sodium oxide (0.025) 0.52 0.022 0.86 (0.007) (0.036) (0.015) 0.59

Sulfur trioxide 0.551 0.155 0.150 0.0770 0.143

Titanium dioxide 1.90 0.103 1.31 (0.11) 2.64 2.52 2.38 (0.001)

Uranium 0.01414

Uranium oxide (U3O8) 0.0135

Vanadium pentoxide 0.028 0.016 0.060 0.31 0.072 0.063 0.064 0.0005

Zinc oxide 0.0035 0.003 (0.19) 0.0014 0.037 0.029 0.013

Zirconium dioxide 0.29 0.060 0.14 0.065 0.061 (0.0002)

111.3 - Ore Bioleaching Substrate (powder form) 

This RM is for use as a bioleaching substrate and for testing bioleaching rates. The material consists of pyrite from New Mexico. 

Thiobacillus ferrooxidans was used in the determinations.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size Bioleaching Rate

8455 Pyrite Ore 100 g 12.4
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122

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- Reference values are italicized

- Values in parentheses are for information only

111.4 - Clays (powder form) 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

97b 98b 679

Description >> Flint Clay Plastic Clay Brick Clay

Unit of Issue >> 60 g 60 g 75 g

(Concentrations are in mass fractions, in %, unless noted by an asterisk for mg/kg)

Aluminum 20.76 14.30 11.01

Antimony (2.2)* (1.6)*

Barium (0.018) (0.07) 0.0432

Calcium 0.0249 0.0759 0.1628

Cerium (105)*

Cesium (3.4)* (16.5)* (9.6)*

Chromium 227* 119* 109.7*

Cobalt (3.8)* (16.3)* (26)*

Europium (0.84)* (1.3)* (1.9)*

Hafnium (13)* (7.2)* (4.6)*

Iron 0.831 1.18 9.05

Lithium 550* 215* 71.7*

Loss on Ignition 13.3 7.5

Magnesium 0.113 0.358 0.7552

Manganese 47* 116* (1730)*

Phosphorus (0.02) (0.03) (0.075)

Potassium 0.513 2.81 2.433

Rubidium (33)* (180)* (190)*

Scandium (22)* (22)* (22.5)*

Silicon 19.81 26.65 24.34

Sodium 0.0492 0.1496 0.1304

Strontium 84* 189* 73.4*

Thorium (36)* (21)* (14)*

Titanium 1.43 0.809 0.577

Zinc (87)* (110)* (150)*

Zirconium (0.05) (0.022)
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123

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- Reference values are italicized

- Values in parentheses are for information only

111.5 - Rock and Minerals (powder form) 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

1d 70a 81a 88b 99b 165a 278 607 688 1413

Description >> Limestone,

Argillaceous

Feldspar,

Potash Glass Sand

Dolomitic

Limestone

Soda

Feldspar

Glass Sand

(Low Iron) Obsidian Rock

Potassium

Feldspar Basalt Rock

Glass Sand

(High Alumina)

Unit of Issue >> 70 g 40 g 75 g 75 g 40 g 75 g 35 g 5 g 60 g 75 g

(Concentrations are in mass fractions, in %, unless noted by an asterisk for mg/kg)

Al2O3 0.526 17.9 0.66 0.336 0.059 14.15 17.36 9.90

Cr2O3 0.0012 46* (1*) (6.1*) 332*

Fe2O3** 0.3191 0.075 0.082 0.277 0.012 2.04 10.35 0.24

K2O 0.1358 11.8 0.1030 4.16 0.187 3.94

Na2O 0.0109 2.55 0.0290 4.84 2.15 1.75

P2O5 0.0413 0.0044 0.036 0.134

Rb2O (Rb 6)* 0.06 127.5* 523.96* 1.91*

SiO2 4.080 67.12 1.13 73.05 48.4 82.77

TiO2 0.0306 0.01 0.12 (0.016) 0.011 0.245 1.17 0.11

87Sr/86Sr 1.20039

Aluminum 10.36

Barium 1409*

Barium oxide 0.0033 0.02 ( 1140*) 0.12

Beryllium (0.1)* (2.8*)

Cadmium (0.3)*

Calcium 1.18*

Calcium oxide 52.85 0.11 29.95 0.983 (12.17) 0.74

Carbon 11.50

Cerium (4)*

Cesium (0.4)* (2.5*)

Chlorine (130)*

Copper 5.9*

Dysprosium (0.6)*

Erbium (0.4)*

Europium (0.1)*

FeO** 1.36 7.64

Fluorine (160)*

Gadolinium (0.5)*

Gallium (1)* (15*)

Holmium (0.1)*
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124

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- Reference values are italicized

- Values in parentheses are for information only

111.5 - Rock and Minerals (powder form) (Cont.)

1d 70a 81a 88b 99b 165a 278 607 688 1413

Description >> Limestone,

Argillaceous

Feldspar,

Potash Glass Sand

Dolomitic

Limestone

Soda

Feldspar

Glass Sand

(Low Iron) Obsidian Rock

Potassium

Feldspar Basalt Rock

Glass Sand

(High Alumina)

Unit of Issue >> 70 g 40 g 75 g 75 g 40 g 75 g 35 g 5 g 60 g 75 g

(Concentrations are in mass fractions, in %, unless noted by an asterisk for mg/kg)

Iron 278.7*

Lanthanum (4)* (1.9*)

Lead 71.2* 16.4*

Lithium (7.9*)

Loss on Ignition 41.57 0.40 (46.98)

Magnesium oxide 0.301 21.03 (0.23) (8.4) 0.06

Manganese 0.0209 0.0160 17.47* 0.052 0.167

Neodymium (3)*

Nickel (4)* 3.6*

Niobium (0.7)*

Phosphorus 44*

Potassium 3.09

Praseodymium (0.6)*

Rubidium 72.6*

Samarium (0.5)*

Silicon 32.07

Sodium 5.25

Strontium 444*

Strontium oxide 0.0303 0.0076 63.5* 65.485* 169.2*

Sulfur 0.1028

Terbium (0.09)*

Thorium (0.5)* 12.4*

Tin (1)*

Titanium 0.54*

Uranium (1)* 4.58*

Vanadium (10)*

Ytterbium (0.3)*

Yttrium (5)* (1.6*)

Zinc (2.6*)

Zinc oxide 0.0022

Zirconium dioxide 0.034 0.006

**Refer to certificate to ascertain if the value reported represents total iron or species-specific iron.
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125

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- Reference values are italicized

- Values in parentheses are for information only

111.6 - Refractories (powder form) 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. For specific values and 

uncertainties, the certificate is the only official source.

76a 77a 78a 154c*** 198 199

Description >> Burnt Refractory

(Al203-40%)

Burnt Refractory

(Al203-60%)

Burnt Refractory

(Al203-70%) Titanium Dioxide Silica Brick Silica Brick

Unit of Issue >> 75 g 75 g 75 g 90 g 45 g 45 g

(mass fraction, in %)

Al2O3 38.7 60.2 71.7 0.16 0.48

Calcium oxide 0.22 0.05 0.11 2.71 2.41

Fe2O3** 1.60 1.00 1.2 0.66 0.74

Lithium oxide 0.042 0.025 0.12 0.001 0.002

Loss on Ignition (0.34) (0.22) (0.42) 0.21 0.17

Magnesium oxide 0.52 0.38 0.70 0.07 0.13

Manganese oxide 0.008 0.007

Phosphorus pentoxide 0.120 0.092 1.3 0.022 0.015

Potassium oxide 1.33 0.090 1.22 0.017 0.094

Silicon dioxide 54.9 35.0 19.4

Sodium oxide 0.07 0.037 0.078 0.012 0.015

Strontium oxide 0.037 0.009 0.25

Titanium dioxide 2.03 2.66 3.22 99.591 0.02 0.06

** Refer to certificate to ascertain if the value reported represents total iron or species-specific iron.

*** Information values are provided for an additional 71 elements
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126

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- Reference values are italicized

- Values in parentheses are for information only

111.7 - Soils, Sediments, and Sludges (powder form) 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

1646a 1944 2586** 2587** 2701** 2702* 2703 2709a** 2710a** 2711a** 2780 2781** 2782** 8704

Description >>

Estuarine

Sediment

New York/

New Jersey

Waterway

Sediment

Trace

Elements in

Soil (contains

lead from paint)

Trace

Elements in

Soil (contains

lead from paint)

Hexavalent

Chromium in

Contaminated

Soil (High Level)

Inorganics

in Marine

Sediment

Sediment for

Solid Sampling

(Small, Sample)

Analytical

Techniques

San Joaquin

Soil

Montana I

Soil

Montana II

Soil

Hard Rock

Mine Waste

Domestic

Sludge

Industrial

Sludge

Buffalo River

Sediment

Unit of Issue >> 70 g 50 g 55 g 55 g 75 g 50 g 5 g 50 g 50 g 50 g 50 g 40 g 70 g 50 g

(Concentrations are in mass fractions, in mg/kg, unless noted as %)

Aluminum 2.297 % 5.33% 6.652% 5.86 % 5.05 % 8.41 % 8.33 % 7.37 % 5.95 % 6.72 % 8.87 % 1.6 % 1.37 % 6.10 %

Antimony (0.3) 4.6 5.60 5.62 1.55 52.5 23.8 (160) (2.0) 3.07

Arsenic 6.23 18.9 8.7 13.7 45.3 45.5 10.5 0.154% 107 48.8 7.82 166 (17)

Barium (210) 413 568 397.4 416 979 792 730 993 254 413

Beryllium (< 1) 1.6 (1.4) (9.2) (3.0)

Boron (74) (20) (50)

Bromine 86

Cadmium 0.148 8.8 2.71 1.92 0.817 0.811 0.371 12.3 54.1 12.10 12.78 4.17 2.94

Calcium 0.519 % 1.0 % 2.218 % 0.927 % 7.47 % 0.343 % 0.31% 1.91 % 0.964 % 2.42 % 0.195 % 3.9 % 0.67 % 2.641 %

Carbon (organic) (3.27 %)

Carbon (total) (3.36 %) (2.1 %) 3.351 %

Cerium (34) (65) 58 (57) 123.4 125.5 42 (60) (70) (64) 1240 66.5

Cesium 3.0 (7.1) 7.7 5.0 8.25 6.7 (13) 5.83

Chlorine 1.4 %

Chromium 40.9 266 301 92 4.26 % 352 130 23 52.3 (44) 202 109 121.9

Cobalt (5) 14 (35) (14) 27.76 27.70 12 5.99 9.89 (2.2) 66.3 13.57

Copper 10.01 380 (81) (160) 117.7 120 33.9 0.342% 140 215.5 627.4 2594

Dysprosium (5.4) (3) (3) (5)

Erbium (3.3)

Europium (1.3) (1.5) 0.83 0.82 1.1 (0.34) 1.31

Gadolinium (5.8) 3.0 3.0 (5)

Gallium (5) (14) (13) 24.3 (26) 35
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127

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- Reference values are italicized

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111.7 - Soils, Sediments, and Sludges (powder form) (Cont.)

1646a 1944 2586** 2587** 2701** 2702* 2703 2709a** 2710a** 2711a** 2780 2781** 2782** 8704

Description >>

Estuarine

Sediment

New York/

New Jersey

Waterway

Sediment

Trace

Elements in

Soil (contains

lead from paint)

Trace

Elements in

Soil (contains

lead from paint)

Hexavalent

Chromium in

Contaminated

Soil (High Level)

Inorganics

in Marine

Sediment

Sediment for

Solid Sampling

(Small, Sample)

Analytical

Techniques

San Joaquin

Soil

Montana I

Soil

Montana II

Soil

Hard Rock

Mine Waste

Domestic

Sludge

Industrial

Sludge

Buffalo River

Sediment

Unit of Issue >> 70 g 50 g 55 g 55 g 75 g 50 g 5 g 50 g 50 g 50 g 50 g 40 g 70 g 50 g

(Concentrations are in mass fractions, in mg/kg, unless noted as %)

Gold (0.10) (0.2) (0.18) (2.2)

Hafnium (12.6) 11.8 (4) (7) 9.2 (4.4) (0.77) 8.4

Hexavalent Cr 551.2

Holmium (1.1) (0.84)

Indium (7) (1) 238

Iron (total) 2.008 % 3.53 % 5.161 % 2.813 % 23.73 % 7.91 % 7.38 % 3.36 % 4.32 % 2.82 % 2.784 % 2.8 % 26.9 % 3.97 %

Lanthanum (17) (39) 29.7 (29) 73.5 75.9 21.7 30.6 38 (38) 58.1

Lead 11.7 330 432 3242 132.8 130 17.3 0.552% 0.140 % 0.577 % 202.1 574 150

Lithium (18) (25) (32) (78.2) (18) (5.0)

Lutetium (0.3) 0.31 (0.5)

Magnesium 0.388 % (1.0 %) 1.707 % 0.669 % 7.47 % 0.990 % (1.0 %) 1.46 % 0.734 % 1.07 % 0.533 % 0.59 % 0.26 % 1.200 %

Manganese 234.5 505 1000 651 0.2137 % 1757 1734 529 0.214 % 675 462 (300) 544

Mercury (0.04) 3.4 0.367 0.290 0.4474 0.474 0.9 9.88 7.42 0.710 3.64 1.10

Molybdenum (1.8) 10.8 (11)* (11) 46.7 10.07

Neodymium (15) 26.4 (25) (56) (72) (17) 22 29 (28)

Nickel (23) 76.1 (75) (36) 75.4 (75)* 85 8 21.7 (12) 80.2 154.1 42.9

Niobium (6) (14) (63) (63)* (18)

Nitrogen 4.78 %

Phosphorus 0.027 % 1001 970 0.1552 % (0.16 %)* 0.0688 % 0.105 % 842 427 2.42 % 0.50 %

Potassium 0.864 % 1.6 % 0.976 % 1.583 % 0.174 % 2.054 % 2.08 % 2.11 % 2.17 % 2.53 % 3.38 % 0.49 % 0.32 % 2.001 %

Praseodymium (7.3)

Rubidium (38) 75 127.7 130 99 117 120 (175) (23)

Samarium (6.1) (10.8) 10.8 (4) 4 5.93 (1.3)

Scandium (5) 10.2 (24) (11) 25.9 25.95 11.1 9.9 8.5 (23) (3.4) 11.26

Selenium 0.193 1.4 (0.6) 4.95 (4.9)* (1.5) (1) (2) (5) 16.0 0.44
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111.7 - Soils, Sediments, and Sludges (powder form) (Cont.)

1646a 1944 2586** 2587** 2701** 2702* 2703 2709a** 2710a** 2711a** 2780 2781** 2782** 8704

Description >>

Estuarine

Sediment

New York/

New Jersey

Waterway

Sediment

Trace

Elements in

Soil (contains

lead from paint)

Trace

Elements in

Soil (contains

lead from paint)

Hexavalent

Chromium in

Contaminated

Soil (High Level)

Inorganics

in Marine

Sediment

Sediment for

Solid Sampling

(Small, Sample)

Analytical

Techniques

San Joaquin

Soil

Montana I

Soil

Montana II

Soil

Hard Rock

Mine Waste

Domestic

Sludge

Industrial

Sludge

Buffalo River

Sediment

Unit of Issue >> 70 g 50 g 55 g 55 g 75 g 50 g 5 g 50 g 50 g 50 g 50 g 40 g 70 g 50 g

(Concentrations are in mass fractions, in mg/kg, unless noted as %)

Silicon 40.0 % 31 % 29.15 % 33.13 % 4.17 % 30.3 % 31.1 % 31.4 % (31 %) (5.1 %) (20.3 %)

Silver (<0.3) 6.4 0.622 0.59 (40) (6) (27) 98 30.6

Sodium 0.741 % 1.9 % 0.468 % 1.127 % 0.255 % 0.681 % 0.693 % 1.22 % 0.894 % 1.20 % 0.221 % 0.21 % 1.30 % 0.553 %

Strontium (68) 84.1 126 119.7 118 239 255 242 217

Sulfur 0.352 % (1.5 %) 1.263 % (0.2 %)

Tantalum (0.7) (0.9) (1) (0.73)

Tellurium (5)

Terbium (0.9) (0.5) (0.5) (0.8) (0.58) (0.48)

Thallium (< 0.5) 0.59 0.8267 (0.83)* 0.58 1.52 (3) (5)

Thorium (5.8) (13) (7) (7.5) 20.51 20.22 10.9 18.1 15 (12) (2.4) 9.07

Thulium (0.5) (32)* (0.4)

Tin 42 31.6

Titanium 0.456 % 4300 0.605 % 3920 0.547 % 0.884 % 0.880 % 0.336 % 0.311 % 0.317 % 0.699 % 0.32 % 880 0.457 %

Tungsten (6.2) 6.4 (190) (24)

Uranium (2.0) (3.1) (10.4) 3.15 9.11 3.01 (4) 8.3 3.09

Vanadium 44.84 100 (160) (78) 0.236 % 357.6 360 110 82 80.7 268 80 94.6

Ytterbium 2.64 (1.6) (2) (2) (3) (0.74)

Yttrium (21) (15) (10)

Zinc 48.9 656 352 335.8 485.3 480 103 0.418% 414 0.257 % 1273 1254 408

Zirconium 195 (200) (176)

* Determination made in parent material (SRM 2702)

** These SRMs also have noncertified leach data. See certificate for details and leach methods used.
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Standard Reference Materials 

for Chemical Composition

112. Ceramics and Glasses

129
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130

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- Reference values are italicized

- Values in parentheses are for information only

112.1 - Carbides and Nitrides (powder form) 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

112b 276b 8983

Description >> Silicon Carbide Tungsten Carbide Silicon Nitride Powder

Unit of Issue >> 80 g 75 g 4.5 g

Composition (mass fraction, in %)

Aluminum 0.44

Calcium 0.04

Free carbon 0.26 (0.04)

Iron 0.13

Nitrogen (0.01) 39.23

Oxygen (0.08) 1.20

Silicon carbide 97.37

Total C 29.43 6.10 0.107

112.2 - Cemented Carbides (powder form) 

SRMs 887-889 are prepared from sintered tungsten carbide base materials.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

887 888 889

Description >> Cemented Carbide

(W-83,Co-10)

Cemented Carbide

(W-64,Co-25,Ta-5)

Cemented Carbide

(W-75,Co-9,Ta-5,Ti-4)

Unit of Issue >> 100 g 100 g 100 g

Carbon (5.5) (4.6) (6.0)

Cobalt 10.35 24.7 9.50

Tantalum 4.77 4.60

Titanium 4.03
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112.3 - Glasses (powder and solid forms) 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

81a 89 92 93a 165a 620 621

Description >> Glass Sand Glass, Lead Barium Soda-Lime Glass Powder Borosilicate Glass Glass Sand (Low Iron) Soda Lime, Flat Soda-Lime Container

Unit Size >> 75 g 45 g 45 g wafer 75 g set (3) set (3)

(Concentrations are in mass fractions, in %, unless noted by an asterisk for mg/kg)

Al2O3 0.66 0.18 2.28 0.059 1.80 2.76

As2O3 0.03 0.056 0.030

As2O5 0.36

B2O3 0.70 12.56

Cr2O3 46* (1*)

Fe2O3 0.082 0.049 0.028 0.012 0.043 0.040

K2O 8.40 (0.6) 0.014 0.41 2.01

Li2O

Mn2O3

Na2O 5.70 (13.1) 3.98 14.39 12.74

P2O5 0.23

SiO2 65.35 (75.0) 80.8 72.08 71.13

SO3 0.03 0.28 0.13

TiO2 0.12 0.01 0.014 0.011 0.018 0.014

ZrO2 0.034 0.005 0.042 0.006 0.007

Barium oxide 1.40 0.12

Cadmium oxide

Calcium oxide 0.21 (8.3) 0.01 7.11 10.71

Chlorine 0.05 0.060

Chromium

Component

Fluorine 

Iron 

Iron oxide 0.016

Lead oxide 17.50

Loss on Ignition 0.32 (0.42)

Magnesium oxide 0.03 (0.1) 0.005 3.69 0.27

Manganese oxide 0.088

Strontium oxide

Zinc oxide (0.2)
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- Reference values are italicized

- Values in parentheses are for information only

112.3 - Glasses (powder and solid forms) (Cont.)

1411 1412 1413 1830 1831 1834 2696

Description >> Soft Borosilicate Glass Multicomponent Glass Glass Sand (High Alumina) Soda Lime Float Glass Soda Lime Sheet Glass Fused Ore (Glass) Silica Fume

Unit Size >> set (10) set (8) 75 g set (3) set (3) disk 70 g

(Concentrations are in mass fractions, in %, unless noted by an asterisk for mg/kg)

Al2O3 5.68 7.52 9.90 0.12 1.21 Al 20.71 0.2080

As2O3

As2O5

B2O3 10.94 4.53 B (1.1)

Cr2O3 2.11

Fe2O3 0.050 (0.031) 0.24 0.121 0.087 0.055

K2O 2.97 4.14 3.94 0.04 0.33 K 0.42 0.652

Li2O (4.50) Li (4.6)

Mn2O3 0.032

Na2O 10.14 4.69 1.75 13.75 13.32 Na (0.14) 0.129

P2O5 P 0.152 0.0863

SiO2 58.04 42.38 82.77 73.07 73.08 Si 20.19 95.61

SO3 0.26 0.25

TiO2 0.02 0.011 0.019 Ti 1.11

ZrO2 Zr (0.047)

Barium oxide 5.00 4.67 0.12 Ba 0.062

Cadmium oxide 4.38

Calcium oxide 2.18 4.53 0.74 8.56 8.20 Ca 0.095 0.426

Chlorine 

Chromium (0.02)

Component

Fluorine 

Iron 0.32

Iron oxide 0.032 0.025

Lead oxide 4.40

Loss on Ignition (2.11)

Magnesium oxide 0.33 (4.69) 0.06 3.90 3.51 Mg 0.088 0.235

Manganese oxide

Strontium oxide 0.09 4.55 Sr 0.153

Zinc oxide 3.85 4.48 0.051
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112.4 - Trace Elements (wafer form) 

These SRMs are for calibrating instruments and evaluating analytical techniques used to determine trace elements in inorganic matrices. 

NOTE: The nominal glass composition of SRMs 610 through 617 is 72% SiO2, 12% CaO, 14% Na2O, and 2% Al2O3.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

610 611 612 613 614 615 616 617

Description >> Trace Elements

in Glass

Trace Elements

in Glass

Trace Elements

in Glass

Trace Elements

in Glass

Trace Elements

in Glass

Trace Elements

in Glass

Trace Elements

in Glass

Trace Elements

in Glass

Unit of Issue >> 4 wafers 4 wafers 4 wafers 4 wafers 4 wafers 4 wafers 4 wafers 4 wafers

Element (in mg/kg) Wafer Thickness (in mm) 3 and 1

Antimony 415.3 415.3 34.9 34.9 (106) (106) 0.078 0.078

Arsenic 340 340 37.4 37.4

Barium 453 453 38.6 38.6

Boron (351) (351) (32) (32) 130 1.30 0.20 0.20

Cadmium 244 244 29.9 29.9 (0.55) (0.55)

Cerium (39) (39)

Chromium 415 415 35.0 35.0

Cobalt (390) (390) 35.5 35.5 0.73 0.73

Copper 444 444 37.7 37.7 1.37 1.37 0.80 0.80

Dysprosium (35) (35)

Erbium (39) (39)

Europium (36) (36) 0.99 0.99

Gadolinium (39) (39)

Gallium (1.3) (1.3) 0.23 0.23

Gold (25) (25) (5) (5) (0.5) (0.5) 0.18 0.18

Iron 458 458 51 51 13.3 13.3 11 11

Lanthanum (36) (36) 0.83 0.83 0.034 0.034

Lead 426 426 38.57 38.57 2.32 2.32 1.85 1.85

Lithium (488) (488) (40) (40)

Manganese 457 457 37.7 37.7

Neodymium (36) (36)

Nickel 458.7 458.7 38.8 38.8 (0.95) (0.95)
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112.4 - Trace Elements (wafer form) 

These SRMs are for calibrating instruments and evaluating analytical techniques used to determine trace elements in inorganic matrices. 

NOTE: The nominal glass composition of SRMs 610 through 617 is 72% SiO2, 12% CaO, 14% Na2O, and 2% Al2O3.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

610 611 612 613 614 615 616 617

Description >> Trace Elements

in Glass

Trace Elements

in Glass

Trace Elements

in Glass

Trace Elements

in Glass

Trace Elements

in Glass

Trace Elements

in Glass

Trace Elements

in Glass

Trace Elements

in Glass

Unit of Issue >> 4 wafers 4 wafers 4 wafers 4 wafers 4 wafers 4 wafers 4 wafers 4 wafers

Element (in mg/kg) Wafer Thickness (in mm) 3 and 1

Potassium (461) (461) (64) (64) 30 30 29 29

Rubidium 425.7 425.7 31.4 31.4 0.855 0.855 0.100 0.100

Samarium (39) (39)

Scandium 0.59 0.59 0.026 0.026

Selenium 115.2 115.2 16.1 16.1

Silver 268 268 22.0 22.0 0.42 0.42

Strontium 515.5 515.5 78.4 78.4 45.8 45.8 41.72 41.72

Thallium 61.8 61.8 15.7 15.7 0.269 0.269 0.0082 0.0082

Thorium 457.2 457.2 37.79 37.79 0.748 0.748 0.0252 0.0252

Titanium (437) (437) 50.1 50.1 3.1 3.1 2.5 2.5

Uranium 461.5 461.5 37.38 37.38 0.823 0.823 0.0721 0.0721

Ytterbium (42) (42)

Zinc (433) (433)

In addition to the elements listed above, the glass SRMs contain the following 25 elements: As, Be, Bi, Cs, Cl, F, Ge, Hf, Hg, Li, Lu, Mg, Nb, P, Pr, Se, S, Te, Tb, Tm, Sn, W, V, Y, and Zr.
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Standard Reference Materials 

for Chemical Composition

113. Cement

135
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136

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113.1 - Cements and Related materials (powder form) 

These portland (1880b, 1881a, 1884b, 1885a, 1886a, 1887a, 1888b, and 1889a) and calcium aluminate (1882a and 1883a) cement SRMs are for x-ray spectroscopic and chemical 

analysis of cements and related materials. [Also see Table 301.2 Cement Turbidimetry and Fineness, Table 113.2 Portland Cement Clinkers, and Table 201.1(3) Viscosity] SRM 2696 

Silica Fume is a cement additive. Each unit of SRM 2696 consists of one bottle.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

633a 634a 1880b 1881a 1882a 1883a 1884b 1885a 1886a 1887a 1888b 1889a 2696

Description >>

Portland

Cement

Portland

Cement

Portland

Cement

Portland

Cement

Calcium

Aluminate

Cement

Calcium

Aluminate

Cement

Portland

Cement

Portland

Cement

Portland

Cement

(White Portland

Cement with

Low Iron)

Portland

Cement

Portland

Cement

Portland

Cement

(Blended with

Limestone)

Silica

Fume

Unit Size >> 4 x 5 g 100 g 4 x 5 g 4 x 5 g 4 x 5 g 4 x 5 g 5 x 4.5 g 4 x 5 g 4 x 5 g 4 x 5 g 4 x 5 g 4 x 5 g 70 g

Component (mass fraction, in %; unless otherwise noted with *μg/g or **ng/g)

Al2O3 2.911 5.015 5.183 7.060 39.14 70.04 4.851 4.026 3.875 6.202 4.277 3.89 0.2080

Cr2O3 0.0124 0.0114 0.01927 0.0588 0.113 0.006 0.00791 0.0195 0.0024 0.009 0.01253 0.0072

Fe2O3 3.738 3.362 3.681 3.09 14.67 0.078 2.937 1.929 0.152 2.861 3.062 1.937 0.055

K2O 0.391 0.3572 0.646 1.228 0.051 0.014 0.957 0.206 0.093 1.100 0.658 0.605 0.655

Loss on Ignition at 950° C 2.460 1.66 1.666 (1.59) (0.20) (0.35) (1.448) (1.68) (1.56) (1.43) (2.039) (3.28) 2.11***

Mn2O3 0.1176 0.0229 0.1981 0.1042 0.060 (0.003) 0.0750 0.0478 0.0073 0.1186 0.0652 0.2588 0.0299

Na2O 0.203 0.0842 0.0914 0.199 0.021 0.30 0.278 1.068 0.021 0.4778 0.1364 0.195 0.129

P2O5 0.14263 0.1767 0.2443 0.1459 00.70 (0.003) 0.0965 0.1220 0.022 0.306 0.07307 0.110 0.0863

SiO2 22.38 20.493 20.42 22.26 4.01 0.24 19.30 20.909 22.38 18.637 20.42 20.66 95.61

TiO2 0.2157 0.2463 0.236 0.3663 1.786 0.020 0.2651 0.195 0.084 0.2658 0.2316 0.227

Barium Oxide 0.256

Calcium oxide 64.129 65.07 64.16 57.58 39.29 29.52 61.31 62.39 67.87 60.90 63.13 65.34 0.426

Chlorine 0.087 0.01830 0.013 0.0065 0.0040 0.0042 0.0104 0.0143

Fluoride 0.038 0.0539 0.0394 0.048

Free CaO 1.60 1.567 (0.29) 0.418 (2.05) (2.16) (0.53) 1.42 (0.58)

Insoluble Residue 0.23 0.487 (5.2) 0.159 (0.22) (0.23) (0.13) 0.32 (0.66)

LOI 220 °C to 550 °C 0.381 0.261 0.616

LOI 45 °C to 220 °C 0.264 0.590 0.573

LOI 550 °C to 950 °C 1.805 0.597 0.850

Magnesium oxide 1.1532 1.0057 1.176 2.981 0.51 0.19 4.74 4.033 1.932 2.835 3.562 0.814 0.235
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113.1 - Cements and Related materials (powder form) (Cont.)

633a 634a 1880b 1881a 1882a 1883a 1884b 1885a 1886a 1887a 1888b 1889a 2696

Description >>

Portland

Cement

Portland

Cement

Portland

Cement

Portland

Cement

Calcium

Aluminate

Cement

Calcium

Aluminate

Cement

Portland

Cement

Portland

Cement

Portland

Cement

(White Portland

Cement with

Low Iron)

Portland

Cement

Portland

Cement

Portland

Cement

(Blended with

Limestone)

Silica

Fume

Unit Size >> 4 x 5 g 100 g 4 x 5 g 4 x 5 g 4 x 5 g 4 x 5 g 5 x 4.5 g 4 x 5 g 4 x 5 g 4 x 5 g 4 x 5 g 4 x 5 g 70 g

Component (mass fraction, in %; unless otherwise noted with *μg/g or **ng/g)

Mercury 24.70**

Strontium oxide 0.0507 0.0735 0.0272 0.036 0.024 0.019 0.0258 0.638 0.018 0.322 0.1009 0.042

Sulfide Sulfur 0.049 0.0131 (0.035) 0.0072 0.015

Sulfur trioxide 2.178 2.780 2.710 3.366 4.034 2.830 2.086 4.622 2.634 2.69

Total (100.41) (100.49) (100.18) (99.95) (100.78) (100.54) (100.18) (100.12) (100.21) (100.42) (100.09)*

Zinc oxide 0.123 0.0222 0.01054 0.0489 0.004 0.0042 0.0029 (0.001) 0.0667 0.01253 0.0048 0.051

***Loss on Ignition at 750 oC
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113.2 - Portland Cement Clinkers (solid form) 

These SRMs provide certified values for the abundance of major phases in cement clinkers, i.e., the percentages of alite (C3S), belite (C2S), aluminate (C3A), and ferrite (C2[A,F]). 

NOTE: In cement chemist notation, C=CaO, S=SiO2, A=Al2O3 and F=Fe2O3.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

2686a 2687 2688

Description >> Portland Cement

Clinker

Portland Cement

Clinker

Portland

Cement Clinker

Unit Size >> 4 x 7 g 3 x 10 g 3 x 10 g

Component (mass fraction, in %)

Alite (C3S) 63.35 71.24 64.95

Alkali Sulfates 0.87

Aluminate (C3A) 2.46 11.82 4.99

Aluminum oxide (3.70) (5.53) (4.90)

Aphthitalite 0.74

Arcanite 0.27 0.92

Belite (C2S) 18.68 12.57 17.45

Calcium oxide (64.09) (67.20) (66.50)

Ferrite (C2AF) 10.76 2.81 12.20

Free CaO (2.2) (0.2)

Iron oxide (3.65) (1.98) (4.07)

Loss on Ignition at 1000 oC (0.51) (0.17) (0.21)

Magnesium oxide (4.81) (1.48) (0.98)

Manganese trioxide (0.13) (0.04) (0.03)

Periclase 3.40

Phosphorus pentoxide (0.07) (0.29) (0.08)

Potassium oxide (0.49) (0.72) (0.35)

Silicon dioxide (21.71) (21.43) (22.68)

Sodium oxide (0.20) (0.14) (0.11)

Strontium oxide (0.04) (0.11) (0.13)

Sulfur trioxide (0.56) (0.83) (0.31)

Titanium dioxide (0.22) (0.27) (0.24)

Total (100.18) (100.20) (100.60)
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Standard Reference Materials 

for Chemical Composition

114. Engine Wear Materials

139
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114.1 - Metallo-Organic Compounds (solid form) 

These SRMs are for preparing solutions in oils of known and reproducible concentrations of metals. Each SRM unit consists of 5g of material.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

Elemental Composition (mass fraction, in % unless otherwise noted with *μg/g)

SRM Description Unit of 

Issue

Aluminum Barium Cadmium Chromium Copper Iron Nickel Silicon Silver Sodium Tin Vanadium Zinc

1051b Barium Cyclohexanebutyrate

(Metallo-Organic)

5 g 28.7

1052b Bis(1-phenyl-1,3-butanediono)

oxovanadium(IV)

5 g 13.01

1053a Cadmium Cyclohexanebutyrate

(Metallo-Organic)

5 g 24.8

1057b Tin (Metallo-Organic) 5 g 22.95

1065b Nickel (Metallo-Organic) 5 g 13.89

1066a Silicon (Metallo-Organic) 5 g 14.14

1069b Sodium (Metallo-Organic) 5 g 12.0

1075a Aluminum (Metallo-Organic) 5 g 8.07

1077a Silver (Metallo-Organic) 5 g 42.60

1078b Chromium (Metallo-Organic) 5 g 9.6

1079b Iron (Metallo-Organic) 5 g 10.45

1080a Copper (Metallo-Organic) 5 g 16.37
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114.2 - Lubricating Oils 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

1083 1085b 1818a 1819a 1848

Description >> Wear Metals (Base Oil) Wear Metals in Lubricating Oil Chlorine in Lub. Base Oil Sulfur in Lub. Base Oil Lubricating Oil Additive Package

Unit Size >> 150 mL set (5) set (5) set (5) 100 g

114.2(1) - Metals in Lubricating Oil 

1083 1085b 1848

Description >> Wear Metals (Base Oil) Wear Metals in Lubricating Oil Lubricating Oil Additive Package

Unit Size >> 150 mL set (5) 100 g

Aluminum (<0.5) 300.4

Arsenic 51.3

Barium (314)

Boron (300) 0.137*

Cadmium (<0.04) 302.9

Calcium (298) 0.359*

Chlorine (<1.7) 57.6 927

Chromium (<0.02) 302.9

Cobalt (<0.01)

Copper (<0.5) 295.6

Hydrogen 12.3*

Iron (<1) 301.2

Lead (<0.04) 297.7

Magnesium (<0.1) 297.3 0.821*

Manganese (0.005) (289)

Molybdenum (<0.01) (296)

Nickel (<0.4) 295.9

Nitrogen 0.57*

Phosphorus 299.9 0.788*

Silicon (<1) 300.2 50
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114.2(1) - Metals in Lubricating Oil 

1083 1085b 1848

Description >> Wear Metals (Base Oil) Wear Metals in Lubricating Oil Lubricating Oil Additive Package

Unit Size >> 150 mL set (5) 100 g

Silver (<0.05) 304.6

Sodium (<0.06) 305.2

Sulfur (980) 2.3270*

Tin (<0.4) (294)

Titanium (<5) 301.1

Vanadium (<0.3) 297.8

Zinc (<0.08) 296.8 0.873*

114.2(2) - Sulfur and Chlorine in Lubricating Base Oil

1818a 1819a

Description >> Chlorine in

Lub. Base Oil

Sulfur in

Lub. Base Oil

Unit Size >> set (5) set (5)

II 60.0 741.1

III 78.2 4022

Iodine 31.6 423.5

IV 154.4 4689

Vanadium 234.0 6135

114.3 - Catalyst Characterization Material (liquid form) 

This RM is for determining the activity of FCC Catalysts by Microactivity Test. It is distributed by NIST in cooperation with the ASTM.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue

8590 High Sulfur Gas Oil Feed 946 mL
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Standard Reference Materials 

for Engineering Materials

115. Forensics

143
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- Values in parentheses are for information only

115.1 - Forensics 

These SRMs and RMs are for calibrating and verifying the accuracy of methods used in a variety of forensic related applications. 

Please click the desired links below to view related SRMs and RMs.

NIST SRMs Supporting Metrology and Traceability for the Forensic Science Community

Table 105.3 Ethanol Solutions see page 63

Table 105.7 Drugs of Abuse (Hair, Urine, Serum) see page 66

Table 105.8 DNA Profiling see page 67

Table 109.4 Crime Scene Investigations see page 100

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source. 
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Standard Reference Materials 

for Physical Properties

201. Ion Activity

145
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201.1 - pH Calibration (powder form) 

These SRMs are used to prepare solutions of known hydrogen ion activity to calibrate commercial pH instruments. SRMs 186g and 191d are each certified for use as an admixture 

only. SRM 186g (186-I-g and 186-II-g) may be used to prepare solutions with a pH of 6. 8640 at 25 °C, or physiological buffer solutions with a pH of 7.4157 at 25 °C.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size pH(s) Values at 25 °C

185h Potassium Hydrogen Phthalate, pH Standard 60 G 4.008

186g pH Standards, (set of 186-I-g + 186-II-g) set (see text above)

187e Sodium Tetraborate (Borax), pH 30 g 9.186

188 Potassium Hydrogen Tartrate, pH 60 g 3.557

189c Potassium Tetroxalate Dihydrate pH Standard 65 g 1.677

191d pH Standards, (set of 191d-I + 191d-II) 1 bottle x 25 g; 1 bottle x 30 g 10.014

2193a Calcium Carbonate pH Standard 30 g 12.469

201.2 - Biological Buffer Systems (powder form) 

These SRMs are used to calibrate clinical instruments (e.g., blood pH measurements), in the physiologically important range of pH 7 to 8. They are based on a biological buffer system 

for clinical pH measurements and are each certified for use as an admixture only. The pH(s) values for the buffer solutions are certified at 0.05 molal and 0.08 molal with respect to the 

free acid and the sodium salt admixture as a function of temperature. The certified temperature range is from 0 °C to 50 °C.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. For specific values and 

uncertainties, the certificate is the only official source.

pH(s) Values (at 37 °C)

SRM Description Unit Size 0.05 molal 0.08 molal

2181 HEPES Free Acid 60 g 7.364 7.373

2182 NaHEPESate 60 g

2183 MOPSO Free Acid 50 g 6.699 6.694

2184 NaMOPSOate 50 g
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201.3 - pD Calibration (powder form) 

These SRMs are for the preparation of solutions of known deuterium ion activity to calibrate pH instruments to indicate pD data. SRMs 2186-I and 2186-II, and 2191a and 2192a are 

certified for use as admixtures only.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue pD(s) Values (at 25 °C)

2185 Pot. Hydrogen Phthalate 60 g 4.518

2186-I Potassium Dihydrogen Phosphate 30 g 7.428

2186-II Disodium Hydrogen Phosphate 30 g 7.428

2191a Sodium Bicarbonate 30 g 10.732

2192a Sodium Carbonate 30 g 10.732

201.4 - Ion-Selective Electrode Calibration (powder form) 

These SRMs are certified for the calibration of ion-selective electrodes and have conventional ionic activities based on the Stokes-Robinson hydration theory for ionic strengths greater 

than 0.1mol/L.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Certified Component

2201 Sodium Chloride (Ion-Selective) 125 g pNa, pCI

2202 Potassium Chloride (Ion-Selective Electrodes) 160 g pK, pCl

2203 Potassium Fluoride (Ion-Selective Electrodes) 125 g pF
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201.5 - Electrolytic Conductivity (liquid form) 

These SRMs are for calibrating and standardizing conductivity cells and meters used in water purity determinations and in clinical applications. SRM 3190 is an aqueous solution of 

hydrochloric acid; SRMs 3191 through 3193 are solutions of high purity potassium chloride in deionized water in equilibrium with atmospheric carbon dioxide. SRMs 3198 and 3199 

are solutions of potassium chloride in a mixture of n-propanol and deionized water.

Conductivity SRMs 3194 (10000 μS/cm), 3195 (100000 μS/cm), and 3196 (20000 μS/cm) have been replaced by their own molality-based NIST traceable primary reference materials 

at conductivity levels of 1409.33 μS/cm, 108621 μS/cm, and 12825.7 μS/cm, respectively by starting with any issuance of SRM 999 Potassium Chloride. 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Nominal Conductivity (μS/cm)

3190 Aqueous Electrolytic Conductivity (25 μS/cm) 500 mL 25

3191 Aqueous Electrolytic Conductivity, (100 μS/cm) 500 mL 100

3192 Aqueous Electrolytic Conductivity (500 μS/cm) 8x50 mL 500

3193 Aqueous Electrolytic Conductivity (1000 μS/cm) 8x50 mL 1000

3198 Aqueous Electrolytic Conductivity (5 μS/cm) 500 mL 5

3199 Aqueous Electrolytic Conductivity (15 μS/cm) 500 mL 15
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Standard Reference Materials 

for Physical Properties

202. Polymeric Properties

149
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- Values in parentheses are for information only

202.1 - Polymers (liquid, pellet, and powder forms) 

These SRMs are for the calibration of instrumentation used in polymer technology science for the determination of molecular weight and molecular weight distribution and as 

characterized samples for other physical properties of polymers.

For further information see: SP 260-42, SP 260-61, SP 260-144 , SP 260-147 and SP 260-152

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size

705a Polystyrene 5 g

706a Polystyrene 18 g

1473b Low Density Polyethylene Resin 60 g

1474a Polyethylene Resin 60 g

1475a Polyethylene, Linear 50 g

1476a Branched Polyethylene Resin 12 g

1478 Polystyrene, Narrow Mol. Wt. 2 g

1479 Polystyrene, Narrow Mol. Wt. 2 g

1482a Polyethylene, 14 K Molecular Weight 0.3 g

1483a Polyethylene, Linear 0.3 g

1484a Polyethylene, Linear 0.3 g

1487 Poly (methyl methacrylate) 2 g

1488 Poly (methyl methacrylate) 2 g

1489 Poly (methyl methacrylate) 2 g

1496 Polyethylene Gas Pipe Resin 0.9 kg

2490 Non-Newtonian Polymer Solution for Rheological Measurements 100 mL

2491 Non-Newtonian Polymer Melt for Rheology 100 mL

2492 Bingham Paste Mixture for Rheological Measurements kit for two batches

2881 Polystyrene Absolute Molecular Mass Distribution Standard 0.3 g

2885 Polyethylene (6280 g/mol) 0.3 g

2886 Polyethylene (87000 g/mol) 0.3 g

2887 Polyethylene (196,400 g/mol) 0.3 g

8395 Tissue Engineering Reference, Scaffold 1 scaffold

8396 Tissue Engineering Reference, Scaffold 1 scaffold

8397 Tissue Engineering Reference, Scaffold 1 scaffold

8456 Ultra High Molecular Weight Polyethylene each

8457 Ultra High Molecular Weight Polyethylene 10 cubes x 0.5 cm
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202.1(1) - Polymers

SRM Description Unit Size

705a Polystyrene 5 g

706a Polystyrene 18 g

1473b Low Density Polyethylene Resin 60 g

1474a Polyethylene Resin 60 g

1475a Polyethylene, Linear 50 g

1476a Branched Polyethylene Resin 12 g

1478 Polystyrene, Narrow Mol. Wt. 2 g

1479 Polystyrene, Narrow Mol. Wt. 2 g

1482a Polyethylene, 14 K Molecular Weight 0.3 g

1483a Polyethylene, Linear 0.3 g

1484a Polyethylene, Linear 0.3 g

1487 Poly (methyl methacrylate) 2 g

1488 Poly (methyl methacrylate) 2 g

1489 Poly (methyl methacrylate) 2 g

2492 Bingham Paste Mixture for Rheological Measurements kit for two batches

2881 Polystyrene Absolute Molecular Mass Distribution Standard 0.3 g

2885 Polyethylene (6280 g/mol) 0.3 g

2886 Polyethylene (87,000 g/mol) 0.3 g

2887 Polyethylene (196,400 g/mol) 0.3 g

202.1(2) - Melt Flow Rate

SRM Description Unit Size

1473b Low Density Polyethylene Resin 60 g

1474a Polyethylene Resin 60 g

1496 Polyethylene Gas Pipe Resin 0.9 kg
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202.1(3) - Viscosity

SRM Description Unit Size

2490 Non-Newtonian Polymer Solution for Rheological Measurements 100 mL

2491 Non-Newtonian Polymer Melt for Rheology 100 mL

2492 Bingham Paste Mixture for Rheological Measurements kit for two batches

202.1(4) - Biomaterials

SRM Description Unit Size Properties Purity/Constituent (mass fraction in %)

8395 Tissue Engineering Reference, Scaffold 1 scaffold 200

8396 Tissue Engineering Reference, Scaffold 1 scaffold 300

8397 Tissue Engineering Reference, Scaffold 1 scaffold 450

8456 Ultra High Molecular Weight Polyethylene each - Young Modulus

- Yield Strength

- Ultimate Tensile Strength

- Elongation

8457 Ultra High Molecular Weight Polyethylene 10 cubes x 0.5 cm - Young Modulus

- Yield Strength

- Ultimate Tensile Strength

- Elongation
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Standard Reference Materials 

for Physical Properties

203. Thermodynamic Properties 

153
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203.1 - Combustion Calorimetry (powder form) 

These SRMs are for use as standards for calibration of combustion bomb calorimeters used in checking the performance of apparatus and analytical procedures.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Heat of Combustion (in MJ/kg)*

39j Benzoic Acid (Calorimetric Standard) 30 g 26.434

1656 Thianthrene Combustion Calorimetry 30 g 33.480

1657 Synthetic Refuse-Derived Fuel 100 g 13.87**

2151 Nicotinic Acid (Combustion Calorimetric Standard) 25 g 22.184

2152 Urea (Combustion Calorimetric Standard) 25 g 10.536

* The calorific values (MJ/kg) may decrease upon the aging or normal oxidation of the coals. NIST will continue to monitor these calorific values and report any substantive change to the purchaser.

** Gross calorific value or HHV (Higher Heating Value).

203.2 - Solution Calorimetry 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Heat of Solution (in MJ/kg) Absorbed

1655 Potassium Chloride, KCl (cr) for Solution Calorimetry 30 g 0.235

203.5 - Differential Scanning Calorimetry and Differential Thermal Analysis 

These SRMs are for calibration and validation of differential scanning calorimeters, differential thermal analyzers, and similar instruments.

Enthalpy and Temperature of Fusion

Enthalpy and Heat Capacity

Thermal Analysis Purity Set

SRM 1514 is for evaluating methods of determining purity by differential scanning calorimetry. It consists of pure phenacetin and phenacetin doped with p-aminobenzoic acid.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size Enthalpy of Fusion (J/g) Melting Temperature (K)

2225 Mercury (Differential Scanning Calorimeters) 2.5 g 11.469 234.30

2232 Indium DSC Calibration Standard - Temperature and Enthalpy of Fusion 1 g 28.51 156.5985 °C

2234 Gallium for Thermal Analysis approximately 2 g 80.097 302.9146

2235 Bismuth for Thermal Analysis 1.5 g 53.146 544.556
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203.5(2) - Enthalpy and Heat Capacity 

SRM Description Unit Size Molecular Weight (in g/mol) Temperature Range (in K)

705a Polystyrene 5 g 170,900 10 to 350

720 Sapphire Heat Capacity 15 g 10 to 2250

781d2 Molybdenum (Heat Capacity) 10 cm 273.15 to 2800

203.5(3) - Thermal Analysis Purity Set

SRM 1514 is for evaluating methods of determining purity by differential scanning calorimetry. It consists of pure phenacetin and phenacetin doped with p-aminobenzoic acid.

SRM Description Unit of Issue

1514 Thermal Analysis Purity Set (DSC) set (4)

* Certified for four levels of p-ABA (in mol %).

203.8 - Defining Fixed Point, International Temperature Scale of 1990, ITS-90 (solid forms) 

These SRMs are for use in preparing defining fixed points of the International Temperature Scale of 1990, ITS-90.

For further information see SP 260-138

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size Temperature (in °C)

740a Zinc (Freezing Point) 200 g 419.527

741a Tin (Freezing Point) 200 g 231.928

1745 Indium (Freezing Point) 200 g 156.5985

1746 Silver (Freezing Point) 300 g 961.78

1751 Gallium Melting-Point 200 g 29.7646
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203.9 - Defining Fixed Point Cells, International Temperature Scale of 1990, ITS-90 

These SRM fixed point devices are for use in the realization of the International Temperature Scale of 1990, ITS-90. 

For further information see SP 260-127

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size Temperature (in °C)

1747 Tin Freezing Point Cell each 231.928

1748 Zinc Freezing Point Cell each 419.527

203.10 - Reference Points (solid forms) 

These moderate purity SRMs are for use in preparing reference point devices and for calibrating thermometers, thermocouples and other temperature measuring devices.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Temperature (in °C)

45d Cu Freezing Point 450 g 1084.8

49e Lead Freezing Point 600 g 327.45

742 Alumina (Reference Point) 10 g 2052

203.11 - Freezing Point, Melting Point, and Triple Point Cells (solid forms)

These SRM fixed point devices are for use in the realization of internationally accepted secondary reference points and/or triple points. They are not intended for calibration of 

differential scanning calorimeters.

For further information see SP 260-87 and SP 260-101

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Temperature (in °C)

1968 Gallium Melting Point each 29.7646

1969 Rubidium Triple Point each 39.3

1970 Succinonitrile Triple Point each 58.0642

1971 Indium Freezing-Point each 156.598

1972 1,3-Dioxolan-2-one Triple Point 60 g 36.3143
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203.13 - Thermocouple Materials 

For further information see SP 260-56, SP 260-134 and SP 260-139

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Temperature Range (°C)

1749 Gold vs. Platinum Thermocouple Thermometer each 197 to 1767

1750 Standard Platinum Resistance Thermometer each 0 to 1000

1967 Pt Thermocouple Wire 1 m 13.8033 K to 429.7485 (K)

203.15 - Thermal Conductivity of Iron (rod form) 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size Conductivity at 293 K (W • m-1 • k-1) Temperature Range (K)

8420 Iron Electrolytic 0.64 D x 5.0 77.9 2 to 1000

203.16 - Thermal Expansion of Metal, Glass (rod form) 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size Temperature Range (K)

731l1 Borosilicate Glass - Thermal Expansion 5 cm 80 to 680

731l2 Borosilicate Glass - Thermal Expansion 10 cm 80 to 680

731l3 Borosilicate Glass - Thermal Expansion 15 cm 80 to 680

738 Stainless Steel - Thermal Expansion 51 x 6.4 mm 293 to 780
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203.17 - Thermal Resistance and Thermal Conductivity Properties of Glass, Silica, and Polystyrene (solid forms) 

For further information see SP 260-130

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Temperature Range (K) Thermal Resistance at 293 K (m2 · K · W-1)

1449 Thermal Resistance - Fumed Silica Board each 297.1 1.2

1450d Thermal Conductivity, Fibrous Glass Board each 280 to 340 0.78*

1452 Thermal Resistance - Fibrous Glass Blanket for High Precision Measurements each 297.1 0.6

1453 Thermal Resistance Expanded Polystyrene Board each 285 to 310 0.4

1459 Thermal Resistance - Fumed Silica Board each 297.1 1.2

*SRM 1450d is certified for thermal conductivity between 280 K to 340 K. Thermal resistance at 293 K is listed here to facilitate comparisons to related materials.

203.18 - Thermoelectric Materials 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size Seebeck Coefficient Range

3451 Low Temperature Seebeck Coefficient Standard bar -20.83 μV/K to -208.17 μV/K
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Standard Reference Materials 

for Physical Properties

204. Optical Properties 

159
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- Values in parentheses are for information only

204.1 - Molecular Absorption (film, filter, solid, and solution forms) 

The optical SRMs for spectrophotometry are certified transfer standards that fall into three general categories transmittance, wavelength, and stray radiant energy each of which 

addresses a specific instrumental parameter of an absorption spectrometer that must be in control for accurate optical transmittance measurements. To obtain optimum verification 

results, each SRM must be used within the specified range of conditions for which it is intended.

SRM 2009a Didymium Wavelength: SRM 2009a is now being supported by Calibration Service (Service No. 38061S). Also, SRM 2065 is a possible alternative. Click here for further 

information: http://ts.nist.gov/MeasurementServices/Calibrations/opticalproperties.cfm#38061S

SRM 2034 Holmium Oxide Solution Wavelength from 240 nm to 650 nm has been discontinued. For an approach using commercial CRMs and intrinsic properties to meet traceability 

needs formerly provided by this SRM, see Intrinsic Wavelength Standard Absorption Bands in Holmium Oxide Solution for UV/visible Molecular Absorption Spectrophotometry, JPCRD, 

Vol 34, No. 1, 2005.

The series number associated with SRM 2034 is the last two digits of the year of issue. All series of SRM 2034 are functionally equivalent; however, minor editorial changes in the 

certificate are incorporated from year to year. Thus, the latest certificate is always considered applicable to units of all prior series with the single exception of the series-specific 

expiration date. The expiration policy on SRM 2034 is that the unit expires on December 31 of the tenth year following its production. Thus, a Series 04 unit is certified through 

December 31, 2014.

The conversion from SRM 2037 Solvent Red Dye 24 to Solvent Red Dye 26 is provided in the SRM 2037 article (pages 3 & 4) of the June SRM 2005 Spotlight.

For further information see:

SP 260-51 - Glass Filters as a Standard Reference Material for Spectrophotometry Selection, Preparation, Certification, Use SRM 930 (November 1975).

SP 260-54 - Certification and Use of Acidic Potassium Dichromate Solutions as an Ultraviolet Absorbance Standard SRM 935 (August 1977).

SP 260-68 - Metal-On- Quartz Filters as a Standard Reference Material for Spectrophotometry SRM 2031 (April 1980).

SP 260-102 - Holmium Oxide Solution Wavelength Standard from 240 650 nm, SRM 2034 (July 1986).

SP 260-116 - Glass Filters as a Standard Reference Material for Spectrophotometry Selection, Preparation, Certification and Use of SRM 930 and SRM 1930 (March 1994).

SP 260-128 - Transmission Filters With Measured Optical Density at 1064 nm Wavelength--SRMs 2046, 2047, 2048, 2049, 2050, and 2051 (1998).

Also see: Table 204.2 - Other Optical Properties Standards

Notice regarding Letter Circular LC-1017: Users who need Letter Circular LC-1017 by Kasson Gibson et al. on spectrophotometric practices can find it reproduced in SP 260-116 as 

Appendix 3. SP 260-116 is available as a PDF from the link above. Appendix 3 starts on page 112 of the 200-page PDF file.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size Wavelength Range (in nm)

931g Liquid Absorbance Filters, UV-VIS set (12) 302 to 678

935a Potassium Dichromate, UV Absorbance Standard 15 g 235 to 350

1921b IR Transmission Wavelength (Polystyrene Film) 1 card 3 μm to 18 μm

1935a Potassium Dichromate Solution/UV Absorbance Standard set (10) 235, 247, 313, 350

2031a Metal-on-Quartz Filters set (3) 250 to 635

2035a Near Infrared Wavelength/Wavenumber each 975 to 1946

2036 Near-IR Wavelength/Wavenumber Reflection each 975 to 1946

2037 Solvent Red 24 Diesel Fuel Dye 100 mg powder
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204.2 - Optical Properties 

See also: Table 204.1 - Molecular Transmittance/Absorbance

For wavelength reference SRMs see:

Table 207.4 Optoelectronics (solid forms)

Molecular Luminescence (solid form) - This SRM is for use in the evaluation of methods and the calibration of fluorescence spectrometers. Issued in 1 g units, SRM 936 consists of 

solid quinine sulfate dihydrate. It is certified for the relative molecular emission spectrum, E (λ), in radiometric units for a solution of 1.28 x 10-6 mol/L quinine sulfate dihydrate in 0.105 

mol/L perchloric acid using an excitation wavelength of 347.5 nm. The values of the molecular emission spectrum are certified at 5 nm wavelength intervals from 375 nm to 675 nm. 

The user must prepare the solution and transfer it to a cuvette of known pathlength. A detailed discussion of this SRM is given in Special Publication 260-64.

For further information see SP 260-64

Specular Spectral Reflectance - These SRMs are for calibrating the reflectance scale of integrating sphere reflectometers used to evaluate materials for solar energy collectors and to 

calibrate reflectometers used in evaluating the appearance of polished metals and metal-plated objects.

SRMs 2011, 2013, 2015, 2017 and 2021 are now being supported by Calibration Service (Service No. 38060S). Check here for further information: 

http://ts.nist.gov/MeasurementServices/Calibrations/opticalproperties.cfm#38061S

For further information see SP 260-79 and SP 260-75

Infrared Reflectance (solid form)

Optical Rotation (powder form) - SRM 17f is intended for calibrating or checking polarimetric apparatus. In aqueous solution, the optical rotation of SRM 17e is value assigned at 

four wavelengths. Please note: Unlike SRM 917b, SRM 917c (current lot) is characterized for purity only. For optical rotation see SRM 17f Sucrose.

Photography (chart form) - SRM 1010a is used to test the resolving power of cameras or of whole microcopying systems. It consists of 5 charts printed photographically on paper, 

that have 26 high-contrast, 5-line patterns ranging in spatial frequency of 1 mm>-1 to 18 mm-1.

Liquid Refractive Index -Mineral Oil - SRM 1922 is intended for use as a calibration material for refractometers, specifically for the refractive index range applicable to solutions of 

sugar and water. SRM 1922 is a mineral oil characterized for refractive index in the visible light range, and consists of one bottle of approximately 30 mL of liquid. Certified values of 

refractive index were conducted on a precision goniometer using the classical method of minimum deviation.

Certified values are given for the refractive indices at six wavelengths, at 20 °C, and for the change in n with respect to temperature, dn/dT valid over the temperature range from 

15 °C to 35 °C.

The refractive index corresponds to approximately 71.6 on the Brix scale.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size

17f Sucrose Optical Rotation 60 g

1010a Microcopy Resolution Test Charts set (5)
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204.2 - Optical Properties (Cont.) 

SRM Description Unit Size

1922 Liquid Refractive Index - Mineral Oil 30 mL

1932 Fluorescein Solution 3 x 2 mL

2036 Near-IR Wavelength/Wavenumber Reflection each

2241 Relative Intensity Correction Standard for Raman Spectroscopy: 785 nm Excitation each

2242 Relative Intensity Correction Standard for Raman Spectroscopy: 532 nm Excitation each

2243 Relative Intensity Correction Standard for Raman Spectroscopy: 488 nm and 514.5 nm Excitation each

2244 Relative Intensity Correction Standard for Raman Spectroscopy: 1064 nm Excitation each

2245 Relative Intensity Correction Standard for Raman Spectroscopy: 633 nm Excitation each

2246 Relative Intensity Correction Standard for Raman Spectroscopy: 830 nm Excitation each

2940 Relative Intensity Correction Standard for Fluorescence Spectroscopy: Orange Emission 412 nm each (12.5 x 12.5 x 45) mm

2941 Relative Intensity Correction Standard for Fluorescence Spectroscopy: Green Emission 427 nm each (12.5 x 12.5 x 45) mm

2942 Relative Intensity Correction Standard for Fluorescence Spectroscopy: Ultraviolet Emission 310.0 nm each (12.5 x 12.5 x 45) mm

2943 Relative Intensity Correction Standard for Fluorescence Spectroscopy: Blue Emission each (12.5 x 12.5 x 45) mm

2944 Relative Intensity Correction Standard for Fluorescence Spectroscopy: Red Emission 510.0 nm
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204.2(3) - Infrared Reflectance (solid form)

Infrared Reflectance (solid form)

SRM Description Unit Size Wavelength Range (nm)

2036 Near-IR Wavelength/Wavenumber Reflection each 975 to 1946

204.2(1) - Fluorescence and Raman Spectroscopy

SRM Description Unit Size Wavelength Range (nm)

1932 Fluorescein Solution 3 x 2 mL 488 to 491

2241 Relative Intensity Correction Standard for Raman Spectroscopy: 785 nm Excitation each 785

2242 Relative Intensity Correction Standard for Raman Spectroscopy: 532 nm Excitation each 532

2243 Relative Intensity Correction Standard for Raman Spectroscopy: 488 nm and 514.5 nm Excitation each 488 and 514.5

2244 Relative Intensity Correction Standard for Raman Spectroscopy: 1064 nm Excitation each 1064

2245 Relative Intensity Correction Standard for Raman Spectroscopy: 633 nm Excitation each 632.8

2246 Relative Intensity Correction Standard for Raman Spectroscopy: 830 nm Excitation each 830

2940 Relative Intensity Correction Standard for Fluorescence Spectroscopy: Orange Emission 412 nm each(12.5 x 12.5 x 45)mm 500 to 800

2941 Relative Intensity Correction Standard for Fluorescence Spectroscopy: Green Emission 427 nm each(12.5 x 12.5 x 45)mm 450 to 650

2942 Relative Intensity Correction Standard for Fluorescence Spectroscopy: Ultraviolet Emission 310.0 nm each(12.5 x 12.5 x 45)mm 320 to 430

2943 Relative Intensity Correction Standard for Fluorescence Spectroscopy: Blue Emission each(12.5 x 12.5 x 45)mm 350 to 640

2944 Relative Intensity Correction Standard for Fluorescence Spectroscopy: Red Emission 510.0 nm 530 to 830
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204.2(5) - Optical Rotation

Optical Rotation (in mrad) Aqueous Solution Wavelength (200 mm cell)

SRM Description Unit Size 546.2271 nm 589.4400 nm 632.9914 nm 882.60 nm

17f Sucrose Optical Rotation 60 g 711.36 604.06 519.02 258.81

204.2(6) - Photography (chart form)

Photography (chart form) - SRM 1010a is used to test the resolving power of cameras or of whole microcopying systems. It consists of 5 charts printed photographically 

on paper, that have 26 high-contrast, 5-line patterns ranging in spatial frequency of 1 mm-1 to 18 mm-1.

For further information see SP 260-135

Technical Contact: maria.nadal@nist.gov

SRM Description Unit Size

1010a Microcopy Resolution Test Charts set (5)

204.2(4) - Optical Rotation (powder form)

Optical Rotation (powder form) - SRM 17f is intended for calibrating or checking polarimetric apparatus. In aqueous solution, the optical rotation of SRM 17f is value assigned 

at four wavelengths. Please note: Unlike SRM 917b, SRM 917c (current lot) is characterized for purity only. For optical rotation see SRM 17f Sucrose.

Optical Rotation (in mrad) 3/4 Aqueous Solution Wavelength (100 mm cell)

SRM Description Unit Size 546.2271 nm 589.4400 nm 632.9914 nm 882.60 nm

17f Sucrose Optical Rotation 60 g 355.68 302.03 259.51 129.41
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204.2(7) - Liquid Refractive Index - Mineral Oil

Liquid Refractive Index - Mineral Oil - SRM 1922 is intended for use as a calibration material for refractometers, specifically for the refractive index range applicable to solutions of 

sugar and water. SRM 1922 is a mineral oil characterized for refractive index in the visible light range, and consists of one bottle of approximately 30 mL of liquid. Certified values of 

refractive index were conducted on a precision goniometer using the classical method of minimum deviation.

Certified values are given for the refractive indices at six wavelengths, at 20 °C, and for the change in n with respect to temperature, dn/dT valid over the temperature 

range from 15 °C to 35 °C.

The refractive index corresponds to approximately 71.6 on the Brix scale.

SRM Description Unit Size n (at 20 °C) dn/dT °C-1 Wavelength (nm)

1922 Liquid Refractive Index - Mineral Oil 30 mL 1.47685 ± 2x10-5

1.47583 ± 3x10-5

1.47373 ± 2x10-5

1.47149 ± 2x10-5

1.46744 ± 2x10-5

1.46945 ± 6x10-5

-3.74x10-4 ± 3x10-6

-3.74x10-4 ± 3x10-6

-3.74x10-4 ± 3x10-6

-3.74x10-4 ± 3x10-6

-3.74x10-4 ± 3x10-6

-3.74x10-4 ± 3x10-6

467.8

480.0

 508.6

546.1

643.8

589.3
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166

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

204.10 - Optical Properties-Notes 

SRM 930e: This SRM is for the verification of the transmittance and absorbance scales of visible absorption spectrometers. It differs from the prior series, SRM 930d, only with respect 

to tightened optical polishing tolerances. SRM 930e has been polished to a parallelism of 20 arc seconds or better, to reduce the optical deviation (relative to SRM 930d) and improve 

performance in instruments where wavelength dispersion occurs after the light has passed through the filter. SRM 930e consists of three individual Schott NG-type glass filters in 

separate metal cuvette-style holders and an empty filter holder. The nominal percent transmittances of the three filters are 10%, 20%, and 30%. The three filters are individually 

certified for transmittance at five wavelengths in the visible spectrum: 440.0 nm, 465.0 nm, 546.1 nm, 590.0 nm, and 635.0 nm. The optical transmittance neutrality of SRM 930e is 

sufficient for the filters to be used to accurately verify absorption spectrometers with maximum spectral bandpasses ranging from 2.2 nm to 6.5 nm for the five wavelengths at which 

the transmittances are certified. When SRM 930e is used in combination with SRM 1930, a 6-point stepwise verification of the transmittance scale is possible over the transmittance 

range from 1% to 50%. A detailed discussion of this SRM and SRM 1930 is given in Special Publication 260-116. (See NOTE.)

SRM 931g: This SRM is for the verification of the absorbance scales of ultraviolet and visible absorption spectrometers having narrow spectral bandpasses. SRM 931g consists of 

three sets of four solutions in sealed 10 mL ampoules. The four solutions include a blank solution and three concentrations of an empirical inorganic solution prepared from high purity 

cobalt and nickel metals dissolved in a mixture of nitric and perchloric acids. The user must transfer the blank and standard solutions to cuvettes of known pathlength. The spectrum 

has absorption maxima at 302 nm, 395 nm, and 512 nm, and a plateau in the region of 678 nm at which the absorbances are certified. The nominal absorbances of the three empirical 

inorganic solution standards are 0.3, 0.6, and 0.9, respectively, at wavelengths 302 nm, 395 nm, and 512 nm. At wavelength 678 nm, the nominal absorbances of the three solutions 

are 0.1, 0.2, and 0.3, respectively. The liquid filters may be used to verify absorption spectrometers with maximum spectral bandpasses ranging from 1.5 nm to 8.5 nm for the four 

wavelengths at which the absorbances are certified.

SRM 935a: This SRM is for the verification of the absorbance scales of ultraviolet absorption spectrometers having spectral bandpasses not exceeding 2 nm. Issued in 15 g units, 

SRM 935a consists of crystalline potassium dichromate of established purity. Solutions of ten known concentrations of this SRM in 0.001 N perchloric acid (between 20 mg/kg and 

200 mg/kg) are certified for their specific absorbances under well-defined conditions. The user must prepare the liquid solutions from SRM 935a and then transfer them to cuvettes 

of known pathlength. The certified specific absorbances for the solutions prepared may be converted to their corresponding reference absorbance values using Beer’s Law. Acidic 

SRM 935a solutions may be prepared anywhere within the concentra tion range of 20 mg/kg to 200 mg/kg to provide a standard with the desired absorbance at a specified 

wavelength. The spectrum has absorption maxima at 257 nm and 350 nm, and absorption minima at 235 nm and 313 nm at which the specific absorbance values are certified. 

A detailed discussion of this SRM is given in Special Publication 260-54.

SRM 1921b: This SRM is for use in the calibration of the wavelength scale of spectrometers in the infrared (IR) spectral region from 3.2 mm to 18 mm (555 cm-1 to 3125 cm-1). 

SRM 1921a consists of three cards made of a matte finish polystyrene film, approximately 38 mm thick with a 25-mm diameter clear aperture and centered 38 mm from the bottom 

of a cardboard holder 5 cm  ́ 11 cm  ́ 2 mm in size. The certified wavelength values, corresponding peak wavenumber values for thirteen absorption peak positions in the 3 mm to 18 

mm range, and a spectrum marked with arrows identifying the certified peaks, are provided with each unit. A detailed discussion of this SRM is given in Special Publication 260-122.

SRM 2031a: This SRM is for the verification of the transmittance and absorbance scales of ultraviolet and visible absorption spectrometers. SRM 2031a consists of three individual 

non-fluorescent, fused silica filters in separate metal cuvette-style holders and an empty filter holder. The nominal transmittances of the three filters are 10%, 30%, and 90%. The 

quartz base plates of the 10% and 30% filters carry different thicknesses of semi-transparent chromium metal that are optically contacted to quartz cover plates. The nominal 90% 

filter is a single clear quartz plate. The three filters are individually certified for transmittances at ten wavelengths in the ultraviolet and visible spectral regions: 250.0 nm, 280.0 nm, 340 

nm, 360.0 nm, 400.0 nm, 465.0 nm, 500.0 nm, 546.1 nm, 590.0 nm, and 635.0 nm. The optical transmittance neutrality of SRM 2031 is such that wider spectral bandpasses can be 

used. Consequently, it is the only transmittance SRM that is suitable for use with those absorption spectrometers with large spectral bandpasses (up to 10 nm). A detailed discussion of 

this SRM is given in Special Publication 260-68. CAUTION: Because the 10% and 30% chromium-coated filters attenuate incident radiation by reflection to a large extent, SRM 2031a 

may possibly generate interreflections between optical surfaces in the sample compartment of some absorption spectrometers. Such interreflections may affect the accuracy of the 

transmittance measurement. Consequently, when contemplating the purchase of SRM 2031a, the user should contact the instrument manufacturer to verify that metal-on-quartz filters 

are compatible with the spectrometer.

NOTE: A recertification service for units of this SRM whose certification has expired, is available directly from the NIST Chemical Science Division. 

Contact the Division for details: Phone: (301) 975-4115; Fax: (301) 977-0587.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.
www.nist.gov/srm | Phone: 301.975.2200 | Fax: 301.948.3730 | Email: srminfo@nist.gov

Standard Reference Materials 

for Physical Properties

205. Radioactivity 

167
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168

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

205.1 - Radiation Dosimetry (wire form) 

This SRM is a cobalt-in-aluminum alloy wire 0.5 mm in diameter and 1 m in length for use as a neutron density monitor standard.

“Radionuclide Calibration Services”

“Radioactive SRM Purchasing Instructions & License Certification Form”

“Radioactive SRMs-General Info”

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Cobalt Composition

(mass fraction, in %)

NRC License or

Equivalent Required

953 Neutron Density Monitor Wire 1 m 0.116 --

If no “X”, then license is not required unless the institution possesses a specific license that covers the listed radionuclide.

205.3 - Special Nuclear Materials 

The U.S. Department of Energy New Brunswick Laboratory issues special nuclear reference materials as NBL Certified Reference Materials (CRMs). These CRMs include the plutonium 

and uranium assay and isotopic materials previously issued by the National Institute of Standards and Technology. All orders or inquiries should be addressed to: U.S. Department of 

Energy, New Brunswick Laboratory, 9800 S. Cass Avenue, Bldg. 350, Argonne, IL 60439-4899. Attn: Reference Materials Sales; Phone: (630) 252-2767; Fax: (630) 252-6256; 

E-mail: usdoe.nbl@ch.doe.gov

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.
www.nist.gov/srm | Phone: 301.975.2200 | Fax: 301.948.3730 | Email: srminfo@nist.gov

169

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

205.4 - Radioactive Solutions 

These SRMs are intended for the calibration of radioactivity measuring instruments and for the monitoring of chemical and geochemical processes. They are calibrated 

in terms of activity per gram of solution. Each SRM is contained in a flame-sealed glass ampoule or bottle and, except as noted, consists of the radionuclide dissolved in 

an aqueous solution (usually acidic). 

When an import permit for radioactive material is required of a customer outside the U.S., NIST must have a copy to complete an order and facilitate shipment.

“Radionuclide Calibration Services”

“Radioactive SRM Purchasing Instructions & License Certification Form”

“Radioactive SRMs-General Info”

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Chemical

Form

Reference Time

(month/year)

Approx.Massic

Activity (Bq/g)

Decay Modes NRC License or

Equivalent Required*

4222C Carbon-14 Hexadecane Radioactivity Standard Solution 5 mL n-hexadecane 09/90 50 000 β - --

4226D Nickel-63 Radioactivity Standard Solution 5 mL NiCl2 11/09 85 000 β- X

4233E Cesium-137 Radioactivity Standard Solution 5 mL CsCl 09/05 300 000 β -,γ X

4239 Strontium-90 Radioactivity Standard Solution 5 mL SrCl2 12/06 32 000 β - X

4251C Barium-133 Radioactivity Standard Solution 5 mL BaCl2 09/93 500 000 EC X

4274 Holmium-166m Gamma-ray Emission Rate Standard Solution 5 mL HoCl3 02/06 20 000 γ X

4288B Technetium-99 Radioactivity Standard Solution 5 mL KTcO4 05/08 30 000 β – --

4320A Curium-244 Radioactivity Standard Solution 5 mL Cm(NO3)3 02/96 35 α X

4321C Natural Uranium Radioactivity Standard Solution 5 mL UO2(NO3)2 01/92 250 α X

4322C Americium-241 Radioactivity Standard Solution 5 mL Am(NO3)3 05/07 100 α X

4323B Plutonium-238 Radioactivity Standard Solution 5 mL Pu(NO3)6 11/99 40 α X

4324B Uranium-232 Radioactivity Standard Solution 5 mL UO2(NO3)2 7/2002 30 α X

4326 Polonium-209 Radioactivity Standard Solution 5 mL PoCl4 03/94 85 α, EC X

4328C Thorium-229 Radioactivity Standard Solution 5 mL Th(NO3)4 12/07 35 α X

4329 Curium-243 Radioactivity Standard Solution 5 mL Cm(NO3)3 06/84 70 α X

4330C Plutonium-239 Radioactivity Standard Solution 3 mL Pu(NO3)6 05/09 40 α X

4332E Americium-243 Radioactivity Standard Solution 5 mL Am(NO3)3 10/08 40 α X

4334I Plutonium-242 Radioactivity Standard Solution 5 mL Pu(NO3)6 01/10 25 α X

4337 Lead-210 Radioactivity Standard Solution 5 mL Pb(NO3)2 06/06 9 000 β - X

4338A Plutonium-240 Radioactivity Standard Solution 5 mL Pu(NO3)6 05/96 40 α X

4339b Radium-228 Radioactivity Standard Solution 5 mL Ra(NO3)2 10/10 200 α, EC X

4340B Plutonium-241 Radioactivity Standard Solution 5 mL Pu(NO3)6 06/07 250 β - X

4341 Neptunium-237 Radioactivity Standard Solution 5 mL Np(NO3)5 03/94 100 α X
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170

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

205.4 - Radioactive Solutions 

SRM Description Unit of Issue Chemical

Form

Reference Time

(month/year)

Approx.Massic

Activity (Bq/g)

Decay Modes NRC License or

Equivalent Required*

4342A Thorium-230 Radioactivity Standard Solution 5 mL Th(NO3)4 04/07 40 α X

4361C Hydrogen-3 Water Radioactivity Standard 500 mL H2O 09/98 2 β - --

4370C Europium-152 Radioactivity Standard Solution 5 mL EuCl3 02/87 90 000 β -,EC,γ X

4915F Cobalt-60 Radioactivity Standard Solution 5 mL CoCl2 11/05 60 000 β -,γ X

4919I Strontium-90 Radioactivity Standard Solution 5 mL SrCl2 12/06 4 200 β - X

4926E Hydrogen-3 Water Radioactivity Standard 20 mL H2O 09/98 5 000 β - --

4927F Hydrogen-3 Water Radioactivity Standard 5 mL H2O 09/98 600 000 β - --

4929F Iron-55 Radioactivity Standard Solution 5 mL FeCl3 11/05 59 000 EC, β - --

4943 Chlorine-36 Radioactivity Standard Solution 3 mL NaCl 12/84 10 000 β - --

4947C Hydrogen-3 Toluene Radioactivity Standard Solution 4 mL H2O 03/87 300 000 β - --

4949C Iodine-129 Radioactivity Standard Solution 5 mL NaI 03/93 3 500 β - X

4965 Radium-226 Radioactivity Standard Solution 5 mL RaCl2 09/91 30 α, γ X

4966A Radium-226 Radioactivity Standard Solution 5 mL RaCl2 01/07 290 α, γ X

4967A Radium-226 Radioactivity Standard Solution 5 mL RaCl2 09/03 2 500 α, γ X

4969 Radium-226 Radioactivity Standard Solution 5 mL RaCl2 09/98 3 α, γ X

*If no “X”, then license is not required unless the institution possesses a specific license that covers the listed radionuclide.
www.nist.gov/srm | Phone: 301.975.2200 | Fax: 301.948.3730 | Email: srminfo@nist.gov

171

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

205.5 - Radiopharmaceuticals (solution and gaseous forms) 

These SRMs are intended for the calibration of radioactivity-measuring instruments. They are calibrated in terms of activity per gram of solution (except SRM 4415, which is calibrated 

in terms of activity). Each SRM is contained in a 5 mL flame-sealed glass ampoule and, except for SRM 4415, consists of the radionuclide dissolved in an aqueous solution (usually 

acidic).These SRMs are produced in collaboration with the NRMAP, Inc. and, because of the short half lives, are available only at specific times.

When an import permit for radioactive material is required of a customer outside the U.S., NIST must have a copy to complete an order and facilitate shipment.

“Radionuclide Calibration Services”

“Radioactive SRM Purchasing Instructions & License Certification Form”

“Radioactive SRMs-General Info”

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Approx Activity

per gram(MBq · g -1)

Half Life (days) Month Produced ** NRC License or

Equivalent Required*

4401L Iodine-131 Radioactivity Standard Solution 5 mL 25 8.0 Jan X

4401H*** Iodine-131 Radioactivity Standard Solution 5 mL 1 GBq/g 8.0 Jan X

4404L Thallium-201 Radioactivity Standard Solution 5 mL 7 3.0 June X

4404H*** Thallium-201 Radioactivity Standard Solution 5 mL 80 3.0 June X

4407L Iodine-125 Radioactivity Standard Solution 5 mL 3 59.4 Dec X

4407H*** Iodine-125 Radioactivity Standard Solution 5 mL 150 59.4 Dec X

4410H Technetium-99m Radioactivity Standard Solution 5 mL 1.5 GBq·g-1 0.3 May X

4412L Molybdenum-99 Radioactivity Standard Solution 5 mL 25 2.74 Feb X

4412H*** Molybdenum-99 Radioactivity Standard Solution 5 mL 890 2.74 Feb X

4415L Xenon-133 Radioactivity Standard Gas Ampoule 150 5.243 Sept X

4415H*** Xenon-133 Radioactivity Standard Gas Ampoule 12 GBq·g-1 5.243 Sept X

4416L Gallium-67 Radioactivity Standard Solution 5 mL 8 3.3 April X

4416H*** Gallium-67 Radioactivity Standard Solution 5 mL 90 3.3 April X

4417L Indium-111 Radioactivity Standard Solution 5 mL 4 2.8 Aug X

4417H*** Indium-111 Radioactivity Standard Solution 5 mL 60 2.8 Aug X

4427L Yttrium-90 Radioactivity Standard Solution 5 mL 5 64.0 h Oct X

4427H*** Yttrium-90 Radioactivity Standard Solution 5 mL 55 64.0 h Oct X

* If no “X” then license is not required unless the institution possesses a specific license that covers the listed radionuclide.

** Orders for these radionuclides must be received by the 3rd day of the month in which the distribution is scheduled. (See SRM Users’ Information section for scheduling updates). For further information contact NIST Radioactivity Group at radsrm@nist.gov

*** Only available to members of NRMAP, Inc. For information on membership: NRMAP/NIST Program
www.nist.gov/srm | Phone: 301.975.2200 | Fax: 301.948.3730 | Email: srminfo@nist.gov

172

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

205.7 - Carbon-14 Dating (solid form) 

This SRM is an international standard for contemporary carbon-14 against which world-wide measurements can be compared. Each SRM consists of approximately 225g of a 450kg 

lot of oxalic acid prepared by fermentation of French beet molasses from the 1977 spring, summer, and autumn harvests.

“Radioactive SRM Purchasing Instructions & License Certification Form”

“Radioactive SRMs-General Info”

“Radionuclide Calibration Services”

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue NRC License or Equivalent Required* Reference Time

4990C Oxalic Acid Powder 8 x 28 g -- 1980

*If no “X”, then license is not required unless the institution possesses a specific license that covers the listed radionuclide.

205.10 - Radon Emanation (encapsulated solution form) 

These SRMs are intended for the calibration of radon-222 measuring instruments.

SRMs 4971, 4972, and 4973 are intended for the calibration of radon-222 measuring instruments. They consist of small heat-sealed polyethylene cylinders containing approximately 

0.2 g of radium-226 solution. These SRMs are calibrated in terms of radium-226 activity and in terms of the emanation fraction of the radon-222 under specified conditions.

When an import permit for radioactive material is required of a customer outside the U.S., NIST must have a copy to complete an order and facilitate shipment.

“Radionuclide Calibration Services”

“Radioactive SRM Purchasing Instructions & License Certification Form”

“Radioactive SRMs-General Info”

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Nominal Total Radium 226 

Activity (Bq)

NRC License or 

Equivalent Required*

Reference Time 

(month/year)

4971 Radon-222 Emanation Standard 0.2 mL 5 X 9/03

4972 Radon-222 Emanation Standard 0.2 mL 50 X 9/03

4973 Radon-222 Emanation Standard 0.2 mL 500 X 9/03

4974 Radon-222 Emanation Standard 0.2 mL 5 000 X 5/05

*If no “X”, then license is not required unless the institution possesses a specific license that covers the listed radionuclide.
www.nist.gov/srm | Phone: 301.975.2200 | Fax: 301.948.3730 | Email: srminfo@nist.gov

173

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

205.11 - Radioactive Natural-Matrix Materials (powder form) 

For further information on the Descriptions of Radioactive Environmental Natural-Matrix Standards click link: Descriptions of Environmental Natural-Matrix Standards.

When an import permit for radioactive material is required of a customer outside the U.S., NIST must have a copy to complete an order and facilitate shipment.

“Radionuclide Calibration Services”

“Radioactive SRM Purchasing Instructions & License Certification Form”

“Radioactive SRMs-General Info”

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

4350B 4351 4352 4353A 4354 4355 4356 4357 4359

Description >>

River Sediment

(Radioactivity)

Human Lung

Powder

Human Liver

Powder

Rocky Flats

Soil Number 2

Lake Sediment

Powder

Peruvian Soil

Powder

Ashed Bone

(Radioactivity)

Ocean

Sediment

Powder

Seaweed

Radionuclide

Standard

Unit Size >> 85 g 45 g 45 g 90 g 25 g 75 g 15 g 85 g 300 g

Massic Activity (mBq/g)

NRC License or Equivalent Required* -- -- -- X -- -- -- -- --

Ref. Date 9-Sep-81 1200 EST 

1-Oct-82

1-Jun-82 1-Apr-98 14-Feb-86 1-June-82 1200 EST 

31-Dec-95

16-Feb-94 1-Jan-02

Americium-241 (241Am) 0.15 0.15 1.1 0.004 0.0432

Antimony-125 (125Sb) <0.14

Cesium-137 (137Cs) 29.0 21.6 59.2 0.33 12.7 0.933

Cobalt-60 (60Co) 4.64 320 <0.016

Curium-243,244 (243Cm + 244Cm) 0.12

Europium-152 (152Eu) 30.5 <0.23

Europium-154 (154Eu) 3.78 <0.2

Europium-155 (155Eu) <0.2

Lead-210 (210Pb) 58.0 21.0

Plutonium-238 (238Pu) 0.013 0.055 0.278 0.26 0.86 2.29 0.00606

Plutonium-239 (239Pu) 0.0840

Plutonium-239,240 (239Pu + 240Pu) 0.508 1.1 2.06 16.8 4.00 0.0075 1.26 10.4 0.1296

Polonium-210 (210Po) 20.6

Potassium-40 (40K) 225 734

Radium-226 (226Ra) 35.8 74.9 14.5 12.7
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174

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- Reference values are italicized

- Values in parentheses are for information only

205.11 - Radioactive Natural Matrix Materials (powder form) 

For further information on the Descriptions of Radioactive Environmental Natural Matrix Standards click link: Descriptions of Environmental Natural Matrix Standards.

When an import permit for radioactive material is required of a customer outside the U.S., NIST must have a copy to complete an order and facilitate shipment.

“Radionuclide Calibration Services”

“Radioactive SRM Purchasing Instructions & License Certification Form”

“Radioactive SRMs-General Info”

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

4350B 4351 4352 4353A 4354 4355 4356 4357 4359

Description >>

River Sediment

(Radioactivity)

Human Lung

Powder

Human Liver

Powder

Rocky Flats

Soil Number 2

Lake Sediment

Powder

Peruvian Soil

Powder

Ashed Bone

(Radioactivity)

Ocean

Sediment

Powder

Seaweed

Radionuclide

Standard

Unit Size >> 85 g 45 g 45 g 90 g 25 g 75 g 15 g 85 g 300 g

Massic Activity (mBq/g)

NRC License or Equivalent Required* -- -- -- X -- -- -- -- --

Ref. Date 9-Sep-81 1200 EST 

1-Oct-82

1-Jun-82 1-Apr-98 14-Feb-86 1-June-82 1200 EST 

31-Dec-95

16-Feb-94 1-Jan-02

Radium-228 (228Ra) 13.3 4.32

Strontium-90 (90Sr) 10.5 1090 42.6 4.4

Thorium-228 (228Th) 28.6 42.2 12.1

Thorium-230 (230Th) 39.7 0.52 12.0

Thorium-232 (232Th) 0.21 26.8 43.0 0.98 13.0 2.40

Uranium-234 (234U) 0.100 40.4 0.64 9.5

Uranium-235 (235U) 1.88 0.75 0.400

Uranium-238 (238U) 0.101 39.6 17.4 0.63 8.67

*If no “X”, then license is not required unless the institution possesses a specific license that covers the listed radionuclide.
www.nist.gov/srm | Phone: 301.975.2200 | Fax: 301.948.3730 | Email: srminfo@nist.gov

Standard Reference Materials 

for Physical Properties

206. Electrical Properties 

175
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176

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

206.1 - Electrical Resistivity and Conductivity of Iron (rod form) 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size Resistivity at 293 K (μΩ · cm) Temperature Range (K)

8420 Iron Electrolytic 0.64 D x 5.0 10.1 2 to 1000

206.2 - Electrical Resistivity and Conductivity of Silicon (block and wafer forms) 

SRMs 2541 through 2547 consist of single wafers intended for use as reference standards for sheet resistance and resistivity measurements utilizing the four-point probe method. 

SRMs 2541, 2542, and 2543 are made of Czochralski-grown, boron-doped silicon with (100) crystallographic orientation; SRMs 2546 and 2547 are float zone (111) orientation and 

phosphorus-doped by the neutron transmutation doping process.

SRM 2524 Optical Fiber Chromatic Dispersion Standard has been discontinued. Special-test chromatic-dispersion measurements can be arranged, for interested customers. Contact 

Tasshi Dennis at tasshi@boulder.nist.gov.

SRM 2525 Optical Retardance Standard has been discontinued. Special-test optical-retardance measurements can be arranged, for interested customers. Contact Paul Williams at 

pwilliams@boulder.nist.gov.

For further information see SP260-131

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size Resistivity (Ω · cm)

2541 Silicon Resistivity each 0.01

2543 Silicon Resistivity each 1

2546 Silicon Resistivity each 100

206.4 - Superconducting Critical Current (wire form) 

This SRM is for checking the performance of measurement systems used in superconductor technology. It consists of 2.2 m of a multifilamentary niobium titanium, copper-stabilized 

superconducting wire wound in a single layer onto a spool with a core diameter of 8.7 cm.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Critical Current (A) Magnetic Field (T)

1457 Superconducting Nb-Ti Wire each 293.30, 187.38, 124.72, 69.72 2.000, 4.000, 6.000, 8.000

206.5 - On-Wafer Calibration Artifacts 

RM 8130 is an on-wafer calibration artifact for microwave scattering parameters.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size

8130 Coplanar Waveguide Calibration Set each
www.nist.gov/srm | Phone: 301.975.2200 | Fax: 301.948.3730 | Email: srminfo@nist.gov

Standard Reference Materials 

for Physical Properties

207. Metrology 

177
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178

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

207.1 - Scanning Electron Microscope (SEM) 

These SRMs and RM are for calibrating the magnification scale and evaluating the performance of scanning electron microscopes. SRM 484g can be used to calibrate the 

magnification scale of an SEM from 1000 to 20,000 X. SRM 2069b consists of graphitized rayon fibers with smooth and uniform edges on a 12.5 mm diameter 

SEM specimen mount with a 3 mm peg.

SRM 2800 is used in calibrating magnification and consists of a pattern of parallel lines whose nominal distances from the centerline range from ± 1μm to ± 5mm. 

Certified values are given for the center-to-center distance of each line from the centerline; the linewidths are not certified.

RM 8091 is used in checking the sharpness performance of scanning electron microscopes.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. For specific values and 

uncertainties, the certificate is the only official source.

SRM Description Unit Size Spacings

2800 Microscope Magnification Standard each 1 μm to 5 mm

8090 SEM Magnification RM each

8091 Scanning Electron Microscope Sharpness Standard each

8820 Scanning Electron Microscope Scale Calibration Artifact 1 chip

9951 Aluminum Wafer Drop-In Sample Holder (6 in) each

9952 Aluminum Wafer Drop-In Sample Holder (8 in) each

207.2 - Optical Microscope Linewidth Measurement (photomask) 

SRM 2059 is a chrome-on-quartz photomask intended primarily for use in calibrating optical microscopes used to make dimensional measurements 

on antireflecting chromium integrated circuit photomasks, and supersedes SRM 473 Optical Microscope Linewidth Standard.

For further information see SP 260-129, SP 260-119, SP 260-117 and 260-114

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Linewidth (μm) Pitch (μm)

2059 Photomask Linewidth Calibration Standard each 0.25 to 32.0 0.5 to 250
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207.3 - Depth Profiling (wafer form) 

SRMs 2133, 2134 and 2137 are for calibrating the secondary ion response to minor and trace element levels in a silicon matrix. SRM 2133 is certified for phosphorus;SRM 2134 is 

certified for arsenic; SRM 2137 is certified for boron. SRM 2135c is for calibrating equipment used to measure sputtered depth and erosion rates in surface analysis. SRM 2135c is 

certified for total chromium and total nickel thickness, for individual layer uniformity, for nickel/chromium bilayer uniformity, and for individual layer thickness.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size Chromium Nickel Value

2133 Phosphorus Implant in Si Depth Profile each 31P: 0.04927 μg/cm2

(9.25 × 1014 atoms/cm2)

2134 Arsenic in Silicon each 75As: 0.09120 μg/cm2

(7.330 × 1014 atoms/cm2)

2135c Ni-Cr Thin Film Depth Profile each 41.3 μg/cm2 49.4 μg/cm2

2137 B Implant in Si Depth Profile each 10B: 0.01692 μg/cm2

(1.018 × 1015 atoms/cm2)

207.4 - Optoelectronics (solid forms) 

These SRMs are intended for calibrating equipment (tunable diode lasers, video microscopes, optical spectrum analyzers, etc.) and measurement systems used in optoelectronics 

manufacturing and in the testing of optoelectronics components (lasers and detectors, optical fiber and fiber components, etc.). SRMs 2514, 2515, 2517a and 2519a are 

fiber-connected molecular gas absorption cells with lines in the 1510 to 1630 nm region; SRMs 2518 and 2538 are devices with stable and known polarization mode 

dispersion-2518 simulates mode-coupled differential group delay (DGD) typical of optical fiber, whereas 2538 is a non-mode-coupled device exhibiting relatively 

wavelength-independent DGD typically found in components; SRM 2520 is an optical fiber specimen with a known cladding diameter value; SRM 2522 is a steel wire, 

with a known diameter, like those used to size bores in fiber connector ferrules.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size

2514 Wavelength Calibration Reference for 1560 nm to 1595 nm (Carbon Monoxide C-12/O-16) each

2515 Wavelength Calibration Reference for 1595 nm to 1630 nm (Carbon Monoxide C-13/O-16) each

2517a High Resolution Wavelength Calibration Reference for 1510-1540 nm Acetylene 12C2H2 each

2518 Polarization Mode Dispersion each

2519a High Resolution Wavelength Calibration Reference for 1530-1565 nm Hydrogen Cyanide each

2520 Optical Fiber Diameter each

2522 Pin Gage for Optical Fiber Ferrul each

2523 Optical Fiber Ferrule Geometry each

2538 Polarization-Mode Dispersion (Non-Mode-Coupled) each
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207.5 - Nonmagnetic Coating Thickness (plate form) 

These SRMs are suitable for calibrating instruments used in the measurement of organics and nonmagnetic inorganic coatings over steel. They consist of fine grained copper of 

varying thicknesses electrodeposited onto low carbon steel substrates having the properties of AISI 1010 steel. These uniform coatings are then overplated with a thin protective 

layer of chromium and the total coating thickness is then certified. The thickness range covered is between 6 μm and 2000 μm. Each unit is also supplied with a blank substrate. 

NOTE: Based on the stability of the coating, wear is the primary factor in determining if a copper on steel SRM needs reverification. If excessive wear is suspected, contact the 

NIST Thin Film and Nanostructure Processing Group at: Phone: (301) 975-6400; Fax: (301) 926-7679 or e-mail: coating.thickness@nist.gov

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

Coating Thickness, nominal

SRM Description Unit Size (m) (mils)

1358b Coating Thickness Standard, (Nonmagnetic Coating on Steel) set (4) 20, 80, 255, 1000 0.8, 3.1, 9.8, 39

1359b Coating Thickness Standard (Nonmagnetic Coating on Steel) set (4) 48, 140, 505, 800 2.0, 5.5, 20, 32

1361b Coating Thickness Standard (Nonmagnetic Coating on Steel set (4) 6, 12, 25, 48 0.2, 0.5, 1.0, 2.0

1362b Coating Thickness Standard (Nonmagnetic Coating on Steel set (4) 40, 80, 140, 205 1.6, 3.1, 5.5, 7.9

1363b Coating Thickness Standard (Nonmagnetic Coating on Steel) set (4) 255, 385, 505, 635 9.8, 16, 20, 26

1364b Coating Thickness Standard (Nonmagnetic Coating on Steel set (4) 800, 1000, 1525, 1935 32, 39, 59, 79

207.6 - Solder Thickness (plate form) 

This SRM is for calibrating x-ray fluorescence equipment. Each unit, which consists of a 1.5 cm x 1.5 cm plate of an electroplated tin-lead alloy coating on a copper substrate, 

is individually certified for composition and mass per unit area.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Coating Mass/Area, nominal (mg/cm2) Coating Thickness, estimated (m) Composition

2321 Sn-Pb Alloy Coating each 6.8 295, 7.5 Sn: 60

Pb: 40

207.9 - Microscale Dimensional Measurement Standards 

SRM 2800 is intended primarily for use in calibrating the magnification or scale of microscopes used to make dimensional measurements. These microscopes include optical and scanning electron microscopes, 

imaging in either transmission or reflection modes, and scanning probe microscopes.

SRM 5000 is intended primarily for calibrating optical microscopes used to make overlay measurements. It is also useful in calibrating other types of instruments capable of making overlay measurements, such as 

scanning electron microscopes or atomic force microscopes, provided that they have an appropriate level of magnification and have the proper sample-holding capabilities.

SRM Description Unit Size

2800 Microscope Magnification Standard each

5000 Overlay Wafer Standard each

5001 Two-Dimensional Grid Photomask, Std each

8820 Scanning Electron Microscope Scale Calibration Artifact 1 chip
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Standard Reference Materials 

for Physical Properties

208. Liquids and Glasses 

181
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208.1 - Chemical Resistance [Durability] of Glass (solid form) 

These SRMs are for checking test methods and calibrating equipment used to determine the resistance of glass containers to chemical attack. The values given represent the volume 

of 0.02 N sulfuric acid used to titrate to the methyl red end point of the alkaline extract from a crushed sample of glass after exposure to high purity water at 121° C.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. For specific values and 

uncertainties, the certificate is the only official source.

SRM Description Unit of Issue mL of N/50 H2 SO4

622 Soda-Lime Silica (Durability) 2.2 kg 7.67

623 Borosilicate (Durability) 2.2 kg 0.34

208.2 - Electrical Properties of Dielectrics 

SRM 624 is a lead-silica glass block that is intended to validate test methods and for calibrating equipment used to determine the dc volume resistivity of glass per ASTM C 657.

SRM 774 is a lead-silica glass block that is intended to validate methods used to determine the low-frequency dielectric constant and ac loss characteristics of insulating 

materials per ASTM D 150. Certified values of dielectric constant and dissipation factor are specified at frequencies between 0.06 to 10 kHz.

SRM 2870 is a cross-linked polystyrene puck that is intended to validate techniques used to measure the high-frequency relative permittivity and loss tangent of insulating materials. 

Certified values for relative permittivity and loss tangent are specified at 10 GHz, including supplemental data between 1 and 25 GHz.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Geometry and Unit Size Parameter(s)

624 Lead-Silica, for dc resistivity 200 g Block

5 cm square

2.5 cm thick

DC Volume Resistivity

774 Lead-Silica (Dielectric Constant) block Block Dielectric

2870 Relative Permittivity and Loss Tangent, 1422 Cross-Linked Polystyrene circular-cylindrical puck Circular-Cylindrical Puck

60 mm diameter

10 mm thick

Relative Permittivity

Loss Tangent
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208.3 - Viscosity of Glass (bar form) 

SRM 717a is for checking the performance of high-temperature viscosity equipment (rotating cylinders) and low temperature viscosity equipment (fiber elongation, beam bending, 

parallel plates, etc.).

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. For specific values and 

uncertainties, the certificate is the only official source.

717a

Description >> Hi Boron

Glass Viscosity

Unit of Issue >> 450 g

Log 10 [Viscosity (Pa · s)] 1 at 1555.4 °C

2 at 1256.5 °C

3 at 1065.1 °C

4 at 932.1 °C

(5) at 834 °C

(6) at 758 °C

(7) at 697 °C

(7) at 697 °C

(8) at 647 °C

(9) at 606 °C

(10) at 570 °C

(11) at 540 °C

208.4 - Glass Liquidus Temperature (solid form) 

This SRM is for checking test methods and for calibrating equipment used to determine the liquidus temperature of glass by the gradient furnace methods per ASTM C 829.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size Method Temperature (C)

773 Soda-Lime-Silica (Glass Liquidus) 7-2.5 cm2 x 0.6cm, ~65g A (boat) 

B (perforated plate)

988

991

1416 Aluminosilicate Glass for Liquidus Temperature 250 g 1147
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208.5 - Viscosity Fixpoints (solid forms) 

These SRMs are for the calibration of equipment for the determination of the softening, annealing, and strain points of glass. SRM 709 is also used to measure relative 

stress optical coefficient. [Also see table 208.6].

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size Annealing Point (°C) Softening Point (°C) Strain Point (°C)

709 Extra Dense Lead Glass 500 g 328 384 311

714 Alumina Glass Anneal Pt 225 g 710 908 622

717a Hi Boron Glass Viscosity 450 g (513) (719) (470)

208.6 - Relative Stress Optical Coefficient (bar form) 

This SRM is for calibrating instruments used to measure the relative stress optical coefficient of glass.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size Relative Stress Optical Coefficient (C) at λ=546.1 nm (Value x 10 -12 m2/N)

709 Extra Dense Lead Glass 4 x 4 x 5 cm Block C = 1.359

208.8 - Density (liquid form) 

SRMs 211d and 2214 are for reference in the determination of the density of liquids. The certified densities were determined by means of hydrostatic weighing and are 

provided at 15 °C, 20 °C, and 25 °C .

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size Density (kg/m3)

211d Toluene Liquid Density 4x5 mL 871.476 ± 0.025

2214 Isooctane Liquid Density 4x5 mL 695.969 ± 0.035
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Standard Reference Materials 

for Physical Properties

209. X-Ray Diffraction

185
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209.1 - X-Ray Diffraction (powder and solid forms) 

SRMs 656, 676a, 674b, 1878a and 1879a consist of high phase purity materials for use in the quantitative analysis of samples by the internal standard method. SRM 656 consists 

of 2 silicon nitride powders, one high in α phase powder, the other high in β phase powder. SRMs 640d, 660b, 675, and 1976a consist of materials with select crystallographic and 

microstructure properties used in the evaluation of diffraction equipment for the following variables; 1) d-spacing or line position, 2) line or instrument intensity, and 3) instrumental or 

sample contributions to the shape of reflection profiles. SRM 1976a, a sintered alumina plate, is also certified with respect to lattice parameters as well as 13 relative intensity values 

from 22° to 155° 2q (Cu Ka ). 

SRM 1990 is certified for lattice parameter. SRM 1994 is certified for miss orientation of the crystal axis relative to the surface normal.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size XRD Application

640d Silicon Powder Line Position + Line Shape Std for Powder Dif 7.5 g Line Position

Line Shape

656 Silicon Nitride Powders for Quantitative Analysis 2 x 10 g Quantitative Analysis

660b Line Position and Line Shape, Std for Powder Diffraction 6 g Line Position

Line Shape

674b X-Ray Powder Diffraction Intensity Set (Quantitative Powder Diffraction Standard) 10.00 g (powder) Quantitative Analysis

675 Line Position, Mica (XRD) 7.5 g Line Position - Low 2θ

676a Alumina Powder for Quantitative Analysis by X-ray Diffraction 20 g Quantitative Analysis

1878a Respirable Alpha Quartz 5 g Quantitative Analysis

1879a Respirable Cristobalite 5 g Quantitative Analysis

1976b Instrument Response Std for, X-Ray Powder Diffraction 1 disc

1990 Lattice Parameter/Single, Crystal (Ruby Spheres) 3 spheres Quantitative Analysis

1994 Standard Silicon Single Crystal Wafer for Crystalline Orientation 100-mm wafer Crystalline Orientation

1995 Standard Sapphire Single Crystal Wafer for Crystalline Orientation 50-mm wafer Crystalline Orientation

2000 Calibration Standard for High-Resolution X-Ray Diffraction 1 block Line Position

2012 Calibration Standard for High Resolution X Ray Diffraction wafer Line Position
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Standard Reference Materials 

for Engineering Materials

301. Sizing

187
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301.1 - Particle Size (powder and solid forms) 

These SRMs are for evaluating and calibrating specific types of particle size measuring instruments, including light scattering, electrical zone flow-through counters, optical and 

scanning electron microscopes, sedimentation systems, and wire cloth sieving devices.

SRMs 1003c, 1004b, 1017b, 1018b and 1019b each consist of soda-lime glass beads covering a particular size distribution (PSD) range. RM 8010 is a three bottle set of different 

sands (A, C and D), intended for use in sieving only, and covers the sieve size range from 30 mesh to 325 mesh.

SRM 659 consists of equiaxed silicon nitride particles measured using sedimentation. SRM 1978 consists of granular, irregular shaped zirconium oxide particles measured using 

sedimentation. SRM 1982 consists of spheroidal particles measured using scanning electron microscopy, laser scattering, and sieving.

SRMs 1690, 1691, 1692, 1963 and 1964 are commercially manufactured monodisperse latex particles in a water suspension. SRMs 1960 and 1961 are monodisperse latex particles 

in a water suspension produced by the National Aeronautics and Space Administration (NASA). SRM 1965 consists of two different groupings of the SRM 1960 particles mounted 

on a microscope slide.

RMs 8011, 8012 and 8013 are gold nanoparticles in water.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size Particle Diameter Distribution

659 Particle Size Distribution Standard for Sedigraph Calibration set (5) 0.2 to 10 μm

1003c Glass Beads - Particle Size Distribution 28 g 20 to 45 μm (635 to 325 mesh)

1004b Glass Beads - Particle Size Distribution 43 g 40 to 150 μm (270 to 120 mesh)

1017b Glass (Particle Size) 70 g 100 to 400 μm (140 to 45 mesh)

1018b Glass (Particle Size) 87 g 220 to 750 μm (60 to 25 mesh)

1019b Glass (Particle Size) 200 g 750 to 2450 μm (20 to 10 mesh)

1021 Glass ( Particle Size) 4 g 2 to 12 μm

1690 Polystyrene Spheres (1 µm Diameter Particle Size) 5 mL 0.895 μm

1691 Polystyrene Spheres (0.3 µm Diameter Particle Size) 5 mL 0.269 μm

1961 Polystyrene Spheres (30 μm Diameter Particle Size) 5 mL 29.64 μm

1963a Nominal 100 nm Diameter Polystyrene Spheres 5 mL 0.1018 μm

1964 Nominal 60 nm Diameter Polystyrene Spheres 5 mL 0.06039 μm

1965 Polystyrene Spheres (on Slide) (10 μm Particle Size) slide 9.94 μm (hexagonal array)

9.89 μm (unordered clusters)

1978 Zirconium Oxide (Particle Size) 5 g 0.33 to 2.19 μm

1982 Zirconia Thermal Spray Powder 10 g 10 to 150 μm

1984 Thermal Spray Powder - Particle Size Distribution Tungsten Carbide/Cobalt (Acicular) 14 g 9 to 30 μm

1985 Thermal Spray Powder - Particle Size Distribution Tungsten Carbide/Cobalt (Spheroidal) 14 g 18 to 55 μm
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301.1 - Particle Size (powder and solid forms) (Cont.) 

SRM Description Unit Size Particle Diameter Distribution

8010 Sand for Sand Sieve Analysis 3 x 150 g A (30 to 100 mesh)

C (70 to 200 mesh)

D (100 to 325 mesh)

8011 Gold Nanoparticles, Nominal 10 nm Diameter two 5 mL ampoules 10 nm

8012 Gold Nanoparticles, Nominal 30 nm Diameter two 5 mL ampoules 30 nm

8013 Gold Nanoparticles, Nominal 60 nm Diameter two 5 mL ampoules 60 nm

8988 Titanium Dioxide Powder - Particle Size Distribution 6 g 0.1 to 0.5 μm
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301.2 - Cement and Coal Fly Ash Fineness 

SRM 46h is only to determine sieve residue according to ASTM C430. Each set consists of 10 sealed vials, each containing approximately 5g of cement.

SRM 114q is for calibrating the Blaine fineness meter according to the latest issue of ASTM C204, to calibrate the Wagner turbidimeter according to ASTM C115, 

to determine sieve residue according to ASTM C430, and to verify procedure for particle size distribution by a laser diffraction method (no-standard method available). 

Each set consists of 20 sealed vials, each containing approximately 5g of cement.

For further information see SP 260-161 SP 260-166

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Properties Value

46h Portland Cement Fineness Std 10 x 5 g Sieve Residue (45 μm residue) (No. 325) 7.43 %

114q Portland Cement Fineness Std set (20) Residue on 45 μm (No. 325) sieve

Specific Surface area (Wagner turbidimeter)

Specific Surface area (Blaine Air Permeability Apparatus)

Particle Size Distribution

0.79 %

2183 cm2 g-1

3818 cm2 g-1

1-128 μm

2689 Coal Fly Ash set (3) Sieve Residue (45 μm residue) (No. 325) 12.8 %

2690 Coal Fly Ash set (3) Sieve Residue (45 μm residue) (No. 325) 8.0 %

2691 Coal Fly Ash set (3) Sieve Residue (45 μm residue) (No. 325) 10.5 %
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301.3 - Electrophoretic Mobility, E (suspension form) 

SRM 1980 is intended for use in the calibration and evaluation of equipment used to measure electrophoretic mobility. It consists of a goethite suspension saturated 

with phosphate in a sodium perchlorate electrolyte solution.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size Property Certified

1980 Positive Electrophoretic Mobility 500 mg/L +μE,  2.53 μm • cm/V • s

301.4 - Surface Area of Powders and Mercury Porosimetry Standards 

These SRMs are intended for calibrating and verifying the performance of instruments used to determine the specific surface area of powders by the Brunauer, Emmett, and Teller 

(BET) method or instruments that use mercury intrusion to measure the pore size and porosity of porous materials. The surface areas of SRMs 1898, 1900, 2206 and 2207 are based 

on both multi-point and single point analysis of the BET equation.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size

1898 Titanium Dioxide Nanomaterial 15 g

1900 Specific Surface Area Standard 4 g

1917 Mercury Porosimetry Standard 10 g

1918 Mercury Porosimeter Intrusion Standard 12 g

2206 Controlled Pore Glass - BET Specific Surface Area (300nm) 5 g

2207 Controlled Pore Glass - BET Specific Surface Area (18nm) 5 g

2696 Silica Fume 70 g
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301.5 - Particle Count Materials (powder and suspension forms) 

These SRM and RM materials are intended for use in calibrating the response of particle sizing instrumentation, including optical counters, in accordance with National Fluid Power 

Association (NFPA) and ISO standard methods (NFPA/T2.9.6 R2-1998, ISO/FDIS 11171, ISO/FDIS 12103) for determining particle contamination in oils. SRM 2806a is certified for 

particle concentration and projected area diameter. It consists of a polydisperse, irregularly-shaped mineral dust suspended in 5606 hydraulic fluid. RMs 8631 and 8632 are mineral test 

dusts of medium and ultrafine particle size and can be used to prepare suspensions in other types of oils. NOTE: The same lot of medium test dust was used to produce SRM 2806 

and RM 8631, and is a derivative of Arizona Road Dust.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size Particle Concentration

2806a Medium Test Dust (MTD) in Hydraulic Fluid 2x400 mL

8631a Medium Test Dust (MTD) 20 g 4 μm to 40 μm

8632 Ultra Fine Test Dust 20 g 1 μm to 20 μm
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Standard Reference Materials 

for Engineering Materials

302. Surface Finish

193
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302.1 - Microindentation Hardness (block form) 

These SRMs are for use in calibrating and checking the performance of microhardness testers and may be used in conjunction with ASTM E 384. SRMs 1893 through 1907 are 

1.25 cm x 1.25 cm (SRM 2798 is 1.35 cm x 1.35 cm) and were made by electroforming the test metal on AISI 1010 steel substrate. SRMs 2830 and 2831 are intended to meet 

the needs of the structural, electronic and biomedical ceramics communities.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Hardness, nominal (kgf/mm2) Load (Newtons)

1893 Copper Microhardness Test Block (Knoop) each 125 0.245, 0.490, 0.981

1894a Microhardness Cu-Vickers each 125 0.245, 0.490, 0.981

1895 Nickel Microhardness Test Block (Knoop) each 600 0.245, 0.490, 0.981

1896b Microhardness Ni-Vickers each 600 0.245, 0.490, 0.981

1905 Microhardness, Ni-Knoop each 600 2.943

1906 Microhardness, Ni-Knoop each 600 4.905

1907 Microhardness, Ni-Knoop each 600 9.81

1908 Vickers Microhardness of Nickel each 600 2.943

1909 Vickers Microhardness of Nickel each 600 9.81

2798a Vickers Microhardness of Nickel each 600 4.905

2828 Knoop Microhardness of Steel 1 block 800 4.90

2829 Vickers Microhardness of Steel 1 block 800 4.90

2830 Microhardness, Ceramic-Knoop each 1500 19.6

2831 Vickers Hardness, Ceramics and Hardmetals each 1530 9.8
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302.4 - Surface Roughness (block form) 

These SRMs are for calibrating stylus instruments that measure surface roughness. These electroless-nickel coated steel blocks have a sinusoidal roughness profile machined on the 

top surface.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Roughness, Ra (μm) Wavelength, D (μm)

2071b Sinusoidal Roughness each 0.3 100

2072 Sinusodial Roughness each

2073a Sinusoidal Roughness each 3 100

2074 Sinusoidal Roughness each 1 40

2075 Sinusoidal Roughness each 1 800

302.2 - Abrasive Wear (block form) 

This SRM is for use in the dry sand/rubber wheel abrasion test per ASTM G 65, Procedure A.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size

1857 Tool Steel for Abrasive Wear 2 blocks
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302.5 - Rockwell Hardness (block form)

These Standard Reference Materials (SRMs) are transfer standards intended primarily for use in the calibration and verification of the performance of Rockwell hardness equipment 

using the applicable Rockwell hardness C scale (HRC), Rockwell hardness 15N scale (HR15N), or Rockwell hardness 30N scale (HR30N).Each SRM unit is a steel test block, nominally 

64 mm in diameter and 15 mm thick, having a polished test surface described by a micro-engraved circle 52 mm in diameter. Each SRM unit is individually certified and bears a unique 

serial number on the edge of the block.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Nominal Hardness

2810 Rockwell C Hardness, Low Range each 25 HRC

2811 Rockwell C Hardness, Mid Range each 45 HRC

2812 Rockwell C Hardness, High Range each 63 HRC

2816 Rockwell Hardness 15N Scale Low Range (Nominal 72 HR 15N) 1 block 72 HR15N

2817 Rockwell Hardness 15N Scale Mid Range (Nominal 83 HR 15N) 1 block 83 HR15N

2818 Rockwell Hardness 15N Scale,High Range (Nominal 91 HR 15N) 1 block 91 HR15N

2819 Rockwell Hardness 30N Scale Low Range (Nominal 45 HR30N) 1 block 45 HR30N

2820 Rockwell Hardness 30N Scale Mid Range (Nominal 64 HR30N) 1 block 64 HR30N

2821 Rockwell Hardness 15N Scale High Range (Nominal 79 HR30N) 1 block 79 HR30N
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Standard Reference Materials 

for Engineering Materials

303. Nondestructive Evaluation

197
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198

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

303.2 - Artificial Flaw for Eddy Current NDE

RM 8458 provides a flaw of known size and geometry that closely resembles an actual fatigue crack. It is intended to produce a response suitable for calibrating eddy current 

nondestructive evaluation (NDE) systems. The flaw size is 3.0 mm ± 0.1 mm long by 1.0 mm deep in a 7 cm x 7 cm x 2 cm block of 7075-T651 aluminum alloy, heat treated to 

the T6 temper.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size

8458 Artificial Flaw for Eddy Current each
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Standard Reference Materials 

for Engineering Materials

305. Fire Research

199
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200

- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

305.1 - Surface Flammability (sheet form) 

This SRM is for checking the operation of radiant panel test equipment in accordance with the procedures outlined in ASTM E 162-78.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size Certification

1002d Hard Board (Surface Flammability) set (4) Flame Spread Index, I = 203

Heat Evolution Factor, Q = 42.0

305.2 - Smoke Density Chamber (sheet form) 

These SRM are certified for maximum specific optical density and for performing operational checks of smoke density chambersin accordance with NFPA 258.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size Maximum Specific Optical Density

1007b Smoke Density Chamber Standard set (3) DM (corr.) = 421 to 493
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- Reference values are italicized

- Values in parentheses are for information only

305.3 - Smoke Toxicity (granular and sheet forms) 

SRM 1048 is for checking the operation of the Cup Furnace Smoke Toxicity Method under two observation periods. It consists of eight sheets, 16 cm x 16 cm x 0.76 cm each, 

of acrylonitrile-butadiene-styrene copolymer. SRM 1049 is for checking the operation of the University of Pittsburgh I Smoke Toxicity Method. It consists of 150 g of Nylon 6/6 

granules which is enough to determine the LC50 value four times.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Combustion Mode Observation Time Values LC50 Values N-Gas

1048 Smoke Toxicity (Cup Furnace) 8 sheets Flaming

(ABS Sheets)

Nonflaming

WE*

WE & PE**

WE*

WE & PE**

27

25

58

53

1.4

1.5

1.2

1.4

1049 Smoke Toxicity (University of Pittsburgh) 150 g (Nylon 6/6) 30 min. exposure

10 min. post-exposure

*WE = within 30 min.

**WE & PE = 30 min + 14 d.

305.4 - Flooring Radiant Panel (sheet form) 

This SRM consists of three sheets of kraft paperboard. It is for checking the operation of flooring radiant panel test apparatus used to measure critical radiant flux as per ASTM E 648.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size Critical Radiant Flux

1012 Flooring Radiant Panel set (3) 0.36 W/cm2
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- Reference values are italicized

- Values in parentheses are for information only

305.5 - Standard Cigarettes for Ignition Strength and Ignition Resistance Testing 

SRM 1082 is intended for use by test laboratories to assess and control their testing of cigarette ignition in accordance with ASTM Standard Methods E 2187-04 (or ASTM E 2187-

02b). SRM 1196 is intended for use by test laboratories to test mattresses, upholstered furniture and its components, and thermal insulation for resistance to cigarette ignition in 

accordance with 16 CFR 1632, 16 CFR 1634 (proposed) and 16 CFR 1209. SRM 1202 is used in conjunction with SRM 1196 to evaluate upholstery for their tendency to support 

smoldering combustion.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size Measurand

1082 Cigarette Ignition Strength Standard 1 carton (200 cigarettes) Ignition Strength 12.6 %

1196 Standard Cigarette for Ignition Resistance Testing 2 cartons(400 cigarettes) Ignition Strength 90.0 %

1202 Fabric Smoldering Ignition Testing Materials 1 box Mass Loss 16 %
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Standard Reference Materials 

for Engineering Materials

309. Miscellaneous Performance Engineering Materials

203
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- Reference values are italicized

- Values in parentheses are for information only

309.1 - Impact Standards: Charpy V-Notch and Izod Impact Specimens 

These SRMs are test specimens intended primarily for the verification of Charpy V-Notch testing machines and Izod testing machines. The dimensions of these SRMs comply with 

the current ASTM Standard E23 and the current ISO 148-1 Standard.

SRMs 2092, 2096, and 2098 are NIST-Verification Charpy V-notch specimens that have a post-test evaluation service and proficiency test data available with them. SRMs 2092 and 

2096 are to be tested at -40° C; SRM 2098 is to be tested at room temperature (21 °C). These SRMs should be tested (broken) at the same time, then returned to NIST Boulder for 

evaluation. An acceptable machine will produce an average value within 1.4 J or 5% of the certified energy value, whichever is greater.

SRMs 2093 and 2097 are Self-Verification Charpy V-notch specimens that do not have any post-test services available with them. These SRMs provide a lower cost option for the 

Self-Service user. SRMs 2093 and 2097 are to be tested at -40° C; These SRMs are not returned to NIST Boulder for evaluation.

SRMs 2112 and 2113 are NIST-Verification Charpy V-notch specimens that are certified for absorbed energy at two test temperatures and are also certified for maximum force.

These SRMs provide a means to verify the performance of the energy and force scales of an instrumented Charpy impact machine at room temperature (21 °C). They can also be 

used to verify just the energy scale of a machine at -40° C, interchangeably with SRMs 2092 and 2096. Theses SRMs should be tested (broken) at the same time, then returned to 

NIST Boulder for evaluation. An acceptable machine will produce an average value within 1.4 J or 5% of the certified energy value, whichever is greater. Currently formal bounds 

are not available to verify the performance of the force scale for a Charpy impact test machine.

SRM 2115 is a NIST Izod specimen. Each SRM consists of a set of specimens needed to perform one evaluation. This SRM complies with ASTM Standard E23 dimensional 

requirements for the Izod (Cantilever Beam) impact specimen, Type D, geometry.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

Energy Range

SRM Description Unit of Issue (J)

2092 Low-Energy Charpy V-Notch Impact Specimen (NIST-Verification) set 13 to 20

2093 Low Energy Charpy V-Notch Impact Specimen (Self- Verification) 5 bars

2096 High-Energy Charpy V-Notch Impact Specimen (NIST-Verification) set 88 to 133

2097 High Energy Charpy V Notch Impact Specimen (Self-Verification) 5 bars

2098 Super High-Energy Charpy V-Notch Impact Specimen (NIST-Verification) set 176 to 244

2112 Dynamic Impact Force Verific Specimens (Nominal 24kN) set of four

2113 Dynamic Impact Force Verific, Specimens (Nominal 33kN) set of four

2115 Low Energy Izod Impact Specimen (NIST-Verification) set 13 to 25

309.4 - Tape Adhesion Testing (sheet form) 

This SRM is intended as a uniform source of linerboard for use with ASTM>Standards D 2860 Standard Test Method for Adhesion of Pressure-Sensitive Tape to Fiberboard at 90° 

Angle and Constant Stress, D 3654 Standard Test Method for Holding Power of Pressure-Sensitive Tapes, and D 3889 Standard Method for Adherence to Linerboard of PressureSensitive Tapes at Low Temperature.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue

1810a Linerboard 50 each
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- Certified values are normal font

- Reference values are italicized

- Values in parentheses are for information only

309.5 - Bleached Kraft Pulps (sheet form) 

RM 8495 Northern Softwood Bleached Kraft Pulp and RM 8496 Eucalyptus Hardwood Bleached Kraft Pulp are intended primarily for use in fundamental studies on the physical 

properties of fibers and paper sheets. The materials selected for these two RMs are bleached dried lap pulp, each from a single lot of a standard commercial production run. The 

materials were selected because of their differing fiber size, differing papermaking properties, and similarity to commercially available materials.

RMs 8495 and 8496 were developed and prepared with input and support from the Pulp Material Research Committee (PMRC), a subcommittee of the Fundamental Research 

Committee. These materials were donated by industry and are being distributed by the SRM Program. At this time, no extensive property measurements have been made on these 

materials beyond ensuring they were within the control limits of the normal production run. A measurement error study is in progress with participation by international paper technical 

laboratories. As results become available, they will be published and added to the Report of Investigation that accompanies each of these materials.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size

8495 Northern Softwood 10 sheets

8496 Eucalyptus Hardwood 10 sheets

309.6 - Secondary Ferrite Standards 

Reference Materials RM 8480 and RM 8481, Secondary Ferrite Standards, are intended for the calibration of instruments used to measure weld metal ferrite content in accordance with 

American National Standards Institute / American Welding Society (ANSI/AWS) Standard A4.2 and International Organization of Standardization (ISO) Standard 8249. RM 8480 consists 

of a low range (8 specimens distributed in the range of 0 FN to 30 FN) and RM 8481 is the corresponding high range (8 specimens distributed in the range of 30 FN to 120 FN).

Previously issued SRMs 485 to 488, are a suite of SRMs for Austenite in Ferrite, which were produced a little over 20 years ago. They are now considered technically obsolete and are 

not longer suitable for their intended purpose. NIST has more recently developed other reference mixtures of austenite and ferrite, RM 8480 Secondary Ferrite Number Standard--Low 

Range and RM 8481 Secondary Ferrite Number Standard--High Range, which are listed below. These are in units of FN, as they were designed for magnetic response measurements 

of ferrite in an austenitic matrix.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit of Issue Range

8480 Secondary Ferrite Number Standard - Low Range 10x12x20 Low Range

8481 Secondary Ferrite Number Standard - High Range set (8) High Range
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- Reference values are italicized

- Values in parentheses are for information only

309.7 - Fracture Toughness of Ceramics 

SRM 2100 Fracture Toughness of Ceramic is intended for verification of fracture toughness testing procedures and may be used in conjunction with ASTM Standard Test Method 

ASTM C1421-99 “Standard Test Methods for Fracture Toughness of Advanced Ceramics.”

A unit of SRM 2100 consists of five hot-pressed silicon nitride flexure specimens. Each specimen is 3 mm x 4 mm x (45 to 47) mm. The SRM may be used with any fracture toughness 

test method, but is optimized for beam bending test configurations.

The certified fracture toughness is 4.57 M Pa • m1/2 ± 0.23 M Pa • m1/2

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. For specific values and 

uncertainties, the certificate is the only official source.

SRM Description Unit Size

2100 Fracture Toughness of Ceramic 5 bars

309.8 - Magnetic Moment 

These Standard Reference Materials are intended for use in the calibration of magnetometers (such as vibrating sample magnetometers) that are used in the measurement 

of magnetic properties of materials.

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size Certified Value

762 Magnetic Moment Standard Nickel Disk 6 mm dia 54.78 A•M2

/kg±0.15 A•m2/kg

(54.78 emu/g ± 0.15 emu/g)

764a Magnetic Susceptibility Standard - Platinum Cylinder 3 mm dia. x 3.42 L 1.268 × 10-8 m3

/kg ± 0.004 × 10-8

m3/kg (1.009 × 10-6 emu/g/0e ± 0.003 × 10-6 emu/g.0e)

772a Nickel Sphere for Magnetic Moment each 3.47 mA•m2 ± 0.01 mA•m2

(3.47 emu ± 0.01 emu)

2853 Magnetic Moment Standard - Yttrium Iron Garnet Sphere each 27.6 A•m2 /kg ± 0.1 A•m2

/kg

(27.6 emu/g ± 0.1 emu/g)

309.10 - Healthcare Equipment Standards 

PLEASE NOTE: The tables are presented to facilitate comparisons among a family of materials to help customers select the best SRM for their needs. 

For specific values and uncertainties, the certificate is the only official source.

SRM Description Unit Size

2087 Dimensional Standard for Medical Computed Tomography each
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207

Numeric Index
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209

Numeric Index

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208

SRM Descriptor Page #

1d Limestone, Argillaceous.............................................. 123, 124

4l Cast Iron............................................................................. 19

5m Cast Iron............................................................................. 19

6g Cast Iron............................................................................. 19

8k Bessemer Steel (Simulated), 0.1 % Carbon............................. 2

12h Basic Open-Hearth Steel, 0.4% Carbon .................................. 2

13g 0.6% Carbon Steel................................................................ 2

14g Carbon Steel (AISI 1078)........................................................ 2

15h Basic Open-Hearth Steel, 0.1% Carbon .................................. 2

16f Basic Open-Hearth Steel, 1% Carbon ..................................... 2

17f Sucrose Optical Rotation........................................ 47, 161, 164

19h Basic Electric Steel, 0.2% Carbon .......................................... 2

20g AISI 1045 Steel .................................................................... 2

25d Manganese Ore ................................................ 116 , 117, 118 

30F LA Steel, Cr-V (SAE 6150)...................................................... 3

32e Nickel-Chromium Steel (SAE 4820) ........................................ 3

33e LA Steel, Ni-Mo (SAE 4820 ................................................... 3

36b Chromium-Molybdenum Steel ............................................... 3

39j Benzoic Acid (Calorimetric Standard) .................................. 154

45d Cu Freezing Point ............................................................. 156

46h Portland Cement Fineness St ............................................. 190

49e Lead Freezing Point........................................................... 156

50c Tungsten-Chromium-Vanadium Steel...................................... 9

53e Bearing Metal (84Pb-10Sb-6Sn) .......................................... 28

54d Bearing Metal (Tin Base)...................................................... 33

57b Silicon Metal ....................................................................... 18

58a Ferrosilicon (73% Si Regular Grade) ..................................... 18

59a Ferrosilicon......................................................................... 18

64c Ferrochromium, High Carbon ............................................... 18

68c Ferromanganese, High Carbon ............................................. 18

69b Bauxite (Arkansas)............................................... 116, 120, 121 

70a Feldspar, Potash.......................................................... 123, 124

72g LA Steel (AISI 4130 ............................................................... 3

73c Stainless Steel, Cr (SAE 420) ................................................. 8

76a Burnt Refractory (Al203-40%)............................................ 125

77a Burnt Refractory (Al203-60%)............................................ 125

78a Burnt Refractory (Al203-70%)............................................ 125

79a Fluorspar, Customs Grade.................................... 116, 118, 117 

81a Glass Sand ........................................................ 123, 124, 131

82b Cast Iron (Ni-Cr) .................................................................. 19

83d Arsenic Trioxide (Reductometric)........................................... 47

84l Potassium Hydrogen Phthalate............................................. 47

87a Aluminum-Silicon Alloy........................................................ 22

88b Dolomitic Limestone ................................................... 123, 124

SRM Descriptor Page #

89 Glass, Lead Barium ........................................................... 131

90 Ferrophosphorus................................................................. 18

92 Soda-Lime Glass Powder................................................... 131

93a Borosilicate Glass.............................................................. 131

94c Zinc-Base Die Casting Alloy ................................................. 36

97b Flint Clay .......................................................................... 122

98b Plastic Clay....................................................................... 122

99b Soda Feldspar............................................................ 123, 124

100b LA Steel, Manganese (SAE T340) ........................................... 3

101g Stainless Steel (AISI 304L) ..................................................... 8

106b LA Steel, CR-Mo-Al (Nitralloy rG) ............................................ 3

107c Cast Iron (Ni-Cr-Mo) ............................................................ 19

112b Silicon Carbide.................................................................. 130

113b Zinc Concentrate............................................... 116 , 117, 118

114q Portland Cement Fineness Std ........................................... 190

115a Cast Iron (Cu-Ni-Cr)............................................................. 19

120c Phosphate Rock (Florida) .................... 111, 112, 116, 120, 121

121d Stainless Steel, (Cr 17-Ni 11-Ti 0.3) (AISI 321)........................ 8

122i Cast Iron............................................................................. 19

123c Stainless Steel, Cr-Ni-Nb (AISI 348)........................................ 8

125b LA Steel, High Silicon............................................................. 3

126c High-Nickel Steel (36 % Ni).................................................... 6

127b Solder, 40Sn-60Pb.............................................................. 28

129c LA Steel, High Sulfur (SAE 112).............................................. 3

131g Low Alloy Silicon Steel ........................................................... 3

132b Tool Steel (AISI M2) ............................................................... 9

133b Chromium-Molybdenum Steel ............................................... 8

134a Tool Steel, Mo-W-Cr-V ........................................................... 9

136f Potassium Dichromate, (Oxidimetric Standard) ...................... 47

139b LA Steel, Cr-Mo-Mo (AISI 8640) ............................................. 3

141d Acetanilide.......................................................................... 48

142 Anisic Acid.......................................................................... 48

143d Cystine ............................................................................... 48

148 Nicotinic Acid ...................................................................... 48

152a Basic Open-Hearth Steel, 0.5% Carbon (Tin Bearing)............... 2

154c Titanium Dioxide................................................................ 125

155 LA Steel, Cr-W ...................................................................... 3

158a Bronze, Silicon .................................................................... 25

160b Stainless Steel (Cr 18-Ni 12-Mo 2) (AISI 316) ......................... 8

163 LA Steel, 1.0 C...................................................................... 3

165a Glass Sand (Low Iron)......................................... 123, 124, 131

166c Stainless Steel, Low-Carbon (AISI 316L) ................................. 8

173c Titanium Alloy (6Al-4V) ........................................................ 34

178 0.4 C Basic Oxygen Furnace Steel.......................................... 2

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210 211

Numeric Index Numeric Index

SRM Descriptor Page #

179 LA Steel, High Silicon............................................................. 3

180 Fluorspar, High Grade ......................................... 116, 117, 118

181 Lithium Ore (Spodumene) .................................... 116, 117, 118

182 Lithium Ore (Petalite)........................................... 116, 117, 118

183 Lithium Ore (Lepidolite)....................................... 116, 117, 118

185h Potassium Hydrogen Phthalate, pH Standard....................... 146

186g pH Standards, (set of 186-I-g + 186-II-g) ........................... 146

187e Sodium Tetraborate (Borax), pH .......................................... 146

188 Potassium Hydrogen Tartrate, pH........................................ 146

189c Potassium Tetroxalate Dihydrate pH Standard...................... 146

191d pH Standards, (set of 191d-I + 191d-II).............................. 146

193 Potassium Nitrate....................................................... 111, 112

194 Ammonium Dihydrogen Phosphate.............................. 111, 112

195 Ferrosilicon (75% Si-HP Grade)............................................ 18

196 Ferrochromium, Low Carbon................................................ 18

198 Silica Brick........................................................................ 125

199 Silica Brick........................................................................ 125

200b Potassium Dihydrogen Phosphate, (KH2PO4 ................ 111, 112

211d Toluene Liquid Density....................................................... 184

276b Tungsten Carbide .............................................................. 130

277 Tungsten Concentrate......................................... 116, 117, 118

278 Obsidian Rock............................................................ 123, 124

291 LA Steel, Cr-Mo (ASTM A 213) ............................................... 3

293 LA Steel, Cr-Ni-Mo (AISI 8620)............................................... 3

330a Copper Ore Mill Heads......................................... 116, 117, 118

331a Copper Ore Mill Tails............................................ 116,117, 118

333a Molybdenum Sulfide Concentrate ......................... 116, 117, 118

334 Gray Cast Iron (Carbon & Sulfur)........................................... 19

338 White Cast Iron (Carbon & Sulfur) ......................................... 19

339 Stainless Steel, Cr-Ni-Se (SAE 30).......................................... 8

341 Ductile Cast Iron.................................................................. 19

342a Nodular Cast Iron ................................................................ 19

343a Stainless Steel (AISI 431)....................................................... 8

344 HA Steel, (Mo Precipitation Hardening).................................... 6

345a HA Steel, (Cu Precipitation Hardening) .................................... 6

346a Valve Steel............................................................................ 6

348a Hi Temp. Alloy, (A286) Ni-Cr ................................................... 6

349a Waspaloy............................................................................ 30

350b Benzoic Acid (Acidimetric).................................................... 47

351a Sodium Carbonate............................................................... 47

360b Zirconium (Sn-Fe-Cr) Alloy................................................... 38

361 AISI 4340 Steel.................................................................. 4, 5

363 Chromium-Vanadium Steel (Modified).................................. 4, 5

364 LA Steel, High C (mod.)....................................................... 4, 5

SRM Descriptor Page #

368 Carbon Steel (AISI 1211)........................................................ 2

399 Unalloyed Copper VI (chips).................................................. 27

400 Unalloyed Copper VII (chips) ................................................. 27

423 Molybdenum Oxide Concentrate........................... 116, 117, 118

454 Unalloyed Copper XI (chips).................................................. 27

457 Unalloyed Copper IV (solid)................................................... 27

458 Beryllium-Copper (17510) ................................................... 25

459 Beryllium-Copper (17200) ................................................... 25

460 Beryllium-Copper (17300) ................................................... 25

480 Tungsten-Molybdenum EPMA .............................................. 40

481 Gold-Silver EPMA................................................................ 40

482 Gold-Copper EPMA ............................................................. 40

494 Unalloyed Copper I (solid)..................................................... 27

495 Unalloyed Copper II (solid).................................................... 27

498 Unalloyed Copper V (solid).................................................... 27

499 Unalloyed Copper VI (solid)................................................... 27

500 Unalloyed Copper VII (solid) .................................................. 27

600 Bauxite, Australian-Darling Range........................ 116, 120, 121

607 Potassium Feldspar.................................................... 123, 124

610 Trace Elements in Glass.............................................. 133, 134

611 Trace Elements in Glass.............................................. 133, 134

612 Trace Elements in Glass.............................................. 133, 134

613 Trace Elements in Glass.............................................. 133, 134

614 Trace Elements in Glass.............................................. 133, 134

615 Trace Elements in Glass.............................................. 133, 134

616 Trace Elements in Glass.............................................. 133, 134

617 Trace Elements in Glass.............................................. 133, 134

620 Soda Lime, Flat ................................................................. 131

621 Soda-Lime Container......................................................... 131

622 Soda-Lime Silica (Durability)............................................... 182

623 Borosilicate (Durability) ...................................................... 182

624 Lead-Silica, for dc resistivity............................................... 182

625 Zinc-Base A ........................................................................ 36

626 Zinc-Base B........................................................................ 36

627 Zinc-Base C........................................................................ 36

628 Zinc-Base D........................................................................ 36

629 Zinc-Base E-ASTM AC 41A.................................................. 36

630 Zinc-Base E-ASTM AC 41A.................................................. 36

631 Zinc Spelter (mod.).............................................................. 36

633a Portland Cement ........................................................ 136, 137

634a Portland Cement ........................................................ 136, 137

640d Silicon Powder Line Position + Line Shape Std for Powder Dif...... 186

641 Titanium Alloy, 8 Mn (A) ....................................................... 34

642 Titanium Alloy, 8 Mn (B) ....................................................... 34

SRM Descriptor Page #

643 Titanium Alloy, 8 Mn (C) ....................................................... 34

647 Titanium Alloy, Al-Mo-Sn-Zr ................................................. 34

648 Titanium Alloy, Al-Sn-Zr-Cr-Mo ............................................. 34

649 Titanium Alloy, V-Al-Cr-Sn .................................................... 34

650 Unalloyed Titanium A ........................................................... 34

654b Titanium Alloy, Al-V.............................................................. 34

656 Silicon Nitride Powders for Quantitative Analysis.................. 186

659 Particle Size Distribution Standard for Sedigraph Calibration ..... 188

660b Line Position and Line Shape, Std for Powder Diffraction .......... 186

662 AISI 94B17 Steel (Modified) ............................................ 10, 11

663 Chromium-Vanadium Steel (Modified).............................. 10, 11

665 Electrolytic Iron............................................................... 10, 11

670 Rutile Ore .......................................................... 116, 119, 120

671 Nickel Oxide 1..................................................................... 32

672 Nickel Oxide 2..................................................................... 32

673 Nickel Oxide 3..................................................................... 32

674b X-Ray Powder Diffraction Intensity Set

 (Quantitative Powder Diffraction Standard) ...................... 186

675 Line Position, Mica (XRD) ................................................... 186

676a Alumina Powder for Quantitative Analysis by X-ray Diffraction..... 186

679 Brick Clay......................................................................... 122

680A-L1 High Purity Platinum............................................................ 46

682 High Purity Zinc................................................................... 46

683 Zinc, Metal.......................................................................... 46

685r High Purity Gold (Rod).......................................................... 46

688 Basalt Rock................................................................ 123, 124

689 Ferrochromium Silicon......................................................... 18

690 Iron Ore Canada.................................................. 116, 119, 120

691 Iron Oxide, Reduced ........................................... 116, 119, 120

692 Iron Ore, Labrador............................................... 116, 119, 120

693 Iron Ore, Labrador............................................................. 116

Iron Ore, Nimba.......................................................... 119, 120

694 Phosphate Rock, Western ................... 111, 112, 116, 120, 121

695 Trace Elements in Multi-Nutrient Fertilizer.................... 111, 112

696 Bauxite, Surinam................................................ 116, 120, 121

697 Bauxite, Dominican............................................. 116, 120, 121

698 Bauxite, Jamaican .............................................. 116, 120, 121

699 Alumina (Reduction Grade)................................... 116, 120, 121

705a Polystyrene ......................................................... 150, 151, 155

706a Polystyrene ................................................................. 150, 151

709 Extra Dense Lead Glass...................................................... 184

714 Alumina Glass Anneal Pt.................................................... 184

717a Hi Boron Glass Viscosity.............................................. 183, 184

720 Sapphire Heat Capacity...................................................... 155

SRM Descriptor Page #

723e Tris Acidimetric.................................................................... 47

726 Selenium, Inter-Purity.......................................................... 46

728 Zinc, Intermediate Purity...................................................... 46

731l1 Borosilicate Glass - Thermal Expansion............................... 157

731l2 Borosilicate Glass - Thermal Expansion............................... 157

731l3 Borosilicate Glass - Thermal Expansion............................... 157

738 Stainless Steel - Thermal Expansion ................................... 157

740a Zinc (Freezing Point).......................................................... 155

741a Tin (Freezing Point)............................................................ 155

742 Alumina (Reference Point).................................................. 156

762 Magnetic Moment Standard Nickel Disk.............................. 206

764a Magnetic Susceptibility Standard - Platinum Cylinder........... 206

772a Nickel Sphere for Magnetic Moment................................... 206

773 Soda-Lime-Silica (Glass Liquidus)....................................... 183

774 Lead-Silica (Dielectric Constant)......................................... 182

781d2 Molybdenum (Heat Capacity).............................................. 155

853a Aluminum Alloy 3004 .......................................................... 22

854a Aluminum Alloy 5182 .......................................................... 22

855a Aluminum Casting Alloy 356 ................................................ 22

856a Aluminum Casting Alloy 380 ................................................ 22

858 Aluminum Alloy 6011 .......................................................... 22

861 Nickel-based Superalloy ...................................................... 30

862 High Temp. Alloy L605....................................................... 6, 24

864 Inconel 600 ........................................................................ 30

865 Inconel 625 ........................................................................ 30

866 Incoloy, 800 ........................................................................ 14

867 Incoloy, 825 ........................................................................ 14

868 High Temp. Alloy Fe-Ni-Co ..................................................... 6

869b Column Selectivity Test Mixture for Liquid Chromatography.... 96

870 Column Performance Test Mixture of Liquid Chromatography. 96

871 Bronze, Phosphor (CDA 521)................................................ 25

872 Bronze, Phosphor (CDA 544)................................................ 25

874 Cupro-Nickel, 10% (CDA 706).............................................. 25

875 Cupro-Nickel, 10% (CDA 706).............................................. 25

879 Nickel Silver, (CDA 762) ....................................................... 25

880 Nickel Silver, (CDA 770) ....................................................... 25

882 Alloy Ni-Cu-Al ..................................................................... 30

885 Refined Copper ................................................................... 46

886 Gold, Ore Refractory........................................... 116, 119, 120

887 Cemented Carbide (W-83,Co-10)....................................... 130

888 Cemented Carbide (W-64,Co-25,Ta-5) ............................... 130

889 Cemented Carbide (W-75,Co-9,Ta-5,Ti-4) .......................... 130

890 Cast Iron, HC250+V ............................................................ 19

891 Cast Iron, Ni-Hard, Type I ..................................................... 19
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212 213

Numeric Index Numeric Index

SRM Descriptor Page #

892 Cast Iron, Ni-Hard, Type IV ................................................... 19

893 Stainless Steel (SAE 405)....................................................... 8

895 Stainless Steel (SAE 201)....................................................... 8

897 Tracealloy A ........................................................................ 31

898 Tracealloy B ........................................................................ 31

899 Tracealloy C ........................................................................ 31

900a Antiepilepsy Drugs in Frozen Human Serum.......................... 56

909c Human Serum.......................................................... 56, 59, 61

911c Cholesterol ......................................................................... 56

912a Urea-Clinical ....................................................................... 56

913a Uric Acid............................................................................. 56

914a Creatinine........................................................................... 56

915b Calcium Carbonate (Clinical Standard) .................................. 56

916a Bilirubin .............................................................................. 56

917c D-Glucose (Dextrose)...................................... 47, 56, 161, 164

918b Potassium Chloride (Clinical) ................................................ 56

919b Sodium Chloride (Clinical) .................................................... 56

920 D-Mannitol.......................................................................... 56

921 Cortisol (Hydrocortisone) ...................................................... 56

924a Lithium Carbonate (Clinical) ................................................. 56

925 VMA (Clinical)...................................................................... 56

927d Bovine Serum Albumin (7%, solution) ........................ 56, 59, 61

928 Lead Nitrate (Clinical)........................................................... 56

929a Magnesium Gluconate......................................................... 57

931g Liquid Absorbance Filters, UV-VIS................................. 160, 166

935a Potassium Dichromate, UV Absorbance Standard ...........160, 166

937 Iron Metal (Clinical).............................................................. 57

951a Boric Acid Isotopic Standard................................................. 52

952 Enriched Boric Acid Standard .............................................. 52

953 Neutron Density Monitor Wire............................................. 168

955c Toxic Metals in Caprine Blood............................................... 57

956c Electrolytes in Frozen Human Serum.......................... 57, 59, 61

965b Glucose in Frozen Human Serum................................ 57, 59, 61

967a Creatinine in Frozen Human Serum ........................... 57, 59, 61

968e Fat-Sol Vitamins, Carotenoids, and Cholesterol

 in Human Serum.................................................. 57, 59, 61

970 Ascorbic Acid in Frozen Human Serum ....................... 57, 59, 61

971 Hormones in Frozen Human Serum ............................ 57, 59, 61

972 Vitamin D in Human Serum........................................ 57, 59, 61 

973 Boric Acid Acidimetric Standard....................................... 47, 52

975a Chlorine Isotopic Standard .................................................. 52

977 Bromine Isotopic Standard ................................................... 52

978a Silver Isotopic Standard ....................................................... 52

979 Chromium Isotopic Standard ................................................ 52

SRM Descriptor Page #

980 Magnesium Isotopic Standard .............................................. 52

981 Common Lead Isotopic Standard.......................................... 52

982 Equal-Atom Lead Isotopic Standard...................................... 52

983 Radiogenic Lead Isotopic Standard....................................... 52

984 Rubidium Assay Isotopic Standard........................................ 52

986 Nickel Isotopic Standard ...................................................... 52

987 Strontium Carbonate Isotopic Standard................................. 52

994 Gallium Isotopic Standard .................................................... 52

997 Thallium Isotopic Standard................................................... 52

998 Angiotensin I (Human).......................................................... 57

999b Potassium Chloride (Primary Chemical)................................. 47

1002d Hard Board (Surface Flammability)...................................... 200

1003c Glass Beads - Particle Size Distribution............................... 188

1004b Glass Beads - Particle Size Distribution............................... 188

1007b Smoke Density Chamber Standard .................................... 200

1010a Microcopy Resolution Test Charts................................ 161, 164

1012 Flooring Radiant Panel....................................................... 201

1017b Glass (Particle Size) ........................................................... 188

1018b Glass (Particle Size) ........................................................... 188

1019b Glass (Particle Size) ........................................................... 188

1021 Glass ( Particle Size) .......................................................... 188

1034 Unalloyed Copper................................................................ 25

1035 Leaded-Tin Bronze Alloy ...................................................... 25

1048 Smoke Toxicity (Cup Furnace)............................................. 201

1049 Smoke Toxicity (University of Pittsburgh).............................. 201

1051b Barium Cyclohexanebutyrate (Metallo-Organic).................... 140

1052b Bis(1-phenyl-1,3-butanediono)oxovanadium(IV)................... 140

1053a Cadmium Cyclohexanebutyrate (Metallo-Organic)................ 140

1057b Tin (Metallo-Organic) ......................................................... 140

1065b Nickel (Metallo-Organic)..................................................... 140

1066a Silicon (Metallo-Organic).................................................... 140

1069b Sodium (Metallo-Organic) .................................................. 140

1075a Aluminum (Metallo-Organic)............................................... 140

1077a Silver (Metallo-Organic) ..................................................... 140

1078b Chromium (Metallo-Organic) .............................................. 140

1079b Iron (Metallo-Organic)........................................................ 140

1080a Copper (Metallo-Organic)................................................... 140

1082 Cigarette Ignition Strength Standard ................................... 202

1083 Wear Metals (Base Oil) ............................................... 141, 142

1085b Wear Metals in Lubricating Oil..................................... 141, 142

1089 Steels, Set (consists of SRMs 1095, 1096, 1097, 1098 and 1099) ..... 7

1090 Ingot Iron, Oxygen ................................................................. 7

1091a Stainless Steel (AISI 431)....................................................... 7

1093 Valve Steel, Oxygen ............................................................... 7

SRM Descriptor Page #

1094 Maraging Steel...................................................................... 7

1107 Naval Brass B ..................................................................... 26

1110 Red Brass B........................................................................ 26

1111 Red Brass C........................................................................ 26

1112 Gilding Metal A (disk)........................................................... 26

C1112 Gilding Metal A (block) ......................................................... 26

1113 Gilding Metal B (disk)........................................................... 26

C1113 Gilding Metal B (block)......................................................... 26

1114 Gilding Metal C (disk)........................................................... 26

C1114 Gilding Metal C (block)......................................................... 26

1115 Commercial Bronze A (disk) ................................................. 26

C1115 Commercial Bronze A (block)................................................ 26

1116 Commercial Bronze B (disk) ................................................. 26

1117 Commercial Bronze C (disk) ................................................. 26

C1117 Commercial Bronze C (block) ............................................... 26

1124 Free Cutting Brass (UNS C36000) ........................................ 26

1128 Ti Alloy, V-Al-Cr-Sn .............................................................. 35

1129 Solder (63Sn-37Pb)............................................................. 28

1131 Solder (60Pb-40Sn)............................................................. 28

1132 Bearing Metal (Pb-Sn).......................................................... 28

1134 LA Steel, High Silicon...................................................... 10, 11

1135 LA Steel, High Silicon...................................................... 10, 11

C1137a White Cast Iron ................................................................... 20

1138a Cast Steel (No. 1) ................................................................ 20

1139a Cast Steel (No. 2) ................................................................ 20

C1145a White Cast Iron ................................................................... 20

C1151a Stainless Steel 23Cr-7Ni...................................................... 15

C1152a Stainless Steel 18Cr-11Ni.................................................... 15

C1153a Stainless Steel 17Cr-9Ni...................................................... 15

C1154a Stainless Steel 19Cr-13Ni.................................................... 15

1155 Stainless Steel Cr 18-Ni 12-Mo 2 (AISI 316) .................... 15, 16

1157 Specialty Steel, Tool (AISI M2)............................................... 17

1158 High-Nickel Steel (36% Ni).................................................. 17

1159 Elec/Mag Ni-Fe ................................................................... 30

1160 Elec/Mag Ni-Mo-Fe ............................................................. 30

1171 Stainless Steel Cr 17-Ni 11-Ti 0.3 (AISI 321) ................... 15, 16

1172 Stainless Steel Cr 17-Ni 11-Nb 0.6 (AISI 348).................. 15, 16

1173 Ni-Cr-Mo-V Steel................................................................. 20

C1173 Cast Steel 3........................................................................ 20

1196 Standard Cigarette for Ignition Resistance Testing................ 202

1202 Fabric Smoldering Ignition Testing Materials........................ 202

1216 Carbon Modified Silica......................................................... 76

1218 LA Steel, High Silicon...................................................... 10, 11

1219 Stainless Steel Cr-Ni (AISI 431) ....................................... 15, 16

SRM Descriptor Page #

C1221 LA Carbon (AISI 1211)......................................................... 12

1223 Chromium Steel ............................................................. 15, 16

1224 LA Steel, Carbon (AISI 1078)........................................... 10, 11

1225 LA Steel (AISI 4130) ....................................................... 10, 11

1226 LA Steel......................................................................... 10, 11

1227 LA Steel, Basic Open Hearth, 1% C ................................. 10, 11

1228 LA Steel, 0.1% C............................................................ 10, 11

1230 High Temp. Alloy, A286 ........................................................ 14

1233 Specialty Steel, Valve Steel................................................... 17

1240c Aluminum Alloy 3004 .......................................................... 22

1241c Aluminum Alloy 5182 .......................................................... 22

1242 High Temp. Alloy L-605........................................................ 24

1243 Waspaloy............................................................................ 30

1244 Inconel 600 ........................................................................ 30

1246 Incoloy® 800....................................................................... 14

1247 Incoloy® 825....................................................................... 14

C1248 Nickel-Copper Alloy............................................................. 30

1249 Nickel-based Superalloy ..................................................... 30

1250 High Temp. Alloy Fe-Ni-Co ................................................... 14

C1251a Phosphorus Copper Cu VIII................................................... 27

C1252a Phosphorus Copper Cu IX .................................................... 27

C1253a Phosphorus Copper X .......................................................... 27

1254 LA Steel (Ca only)........................................................... 10, 11

1255b Aluminum Alloy 356 ............................................................ 22

1256b Aluminum Alloy 380 ............................................................ 22

1258-I Aluminum Alloy 6011 .......................................................... 23

1259 Aluminum Alloy 7075 .......................................................... 23

1264a LA Steel, High Carbon (mod.) .......................................... 10, 11

1265a Electrolytic Iron............................................................... 10, 11

1269 Line Pipe (AISI 1526 mod.) ............................................. 10, 11

1270 LA Steel, Cr-Mo (A336) (F-22)......................................... 10, 11

1271 LA Steel (HSLA-100) ...................................................... 12, 13

1276a Cupro-Nickel (CDA 715) ...................................................... 26

C1285 LA Steel (A242) (mod.) ........................................................ 12

1286 Low Alloy Steel (HY 80)................................................... 12, 13

C1290 High Alloy (HC-250 + V)....................................................... 20

C1291 High Alloy (Ni-Hard, Type I)................................................... 20

C1292 High Alloy (Ni-Hard, Type IV) ................................................. 20

1295 Stainless Steel (SAE 405)................................................ 15, 16

C1296 Stainless Steel .................................................................... 15

1297 Stainless Steel (SAE 201)................................................ 15, 16

1358b Coating Thickness Standard, (Nonmagnetic Coating on Steel) 180

1359b Coating Thickness Standard (Nonmagnetic Coating on Steel) 180

1361b Coating Thickness Standard (Nonmagnetic Coating on Steel 180
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214 215

Numeric Index Numeric Index

SRM Descriptor Page #

1362b Coating Thickness Standard (Nonmagnetic Coating on Steel 180

1363b Coating Thickness Standard (Nonmagnetic Coating on Steel) 180

1364b Coating Thickness Standard (Nonmagnetic Coating on Steel 180

1400 Bone Ash............................................................................ 57

1411 Soft Borosilicate Glass....................................................... 132

1412 Multicomponent Glass....................................................... 132

1413 Glass Sand (High Alumina) .................................. 123, 124, 132

1416 Aluminosilicate Glass for Liquidus Temperature ................... 183

1449 Thermal Resistance - Fumed Silica Board........................... 158

1450d Thermal Conductivity, Fibrous Glass Board.......................... 158

1452 Thermal Resistance - Fibrous Glass Blanket

 for High Precision Measurements................................... 158

1453 Thermal Resistance Expanded Polystyrene Board ................ 158

1457 Superconducting Nb-Ti Wire .............................................. 176

1459 Thermal Resistance - Fumed Silica Board........................... 158

1473b Low Density Polyethylene Resin................................... 150, 151

1474a Polyethylene Resin ..................................................... 150, 151

1475a Polyethylene, Linear ................................................... 150, 151

1476a Branched Polyethylene Resin ...................................... 150, 151

1478 Polystyrene, Narrow Mol. Wt........................................ 150, 151

1479 Polystyrene, Narrow Mol. Wt........................................ 150, 151

1482a Polyethylene, 14 K Molecular Weight ........................... 150, 151

1483a Polyethylene, Linear ................................................... 150, 151

1484a Polyethylene, Linear ................................................... 150, 151

1486 Bone Meal .......................................................................... 57

1487 Poly (methyl methacrylate) .......................................... 150, 151

1488 Poly (methyl methacrylate) .......................................... 150, 151

1489 Poly (methyl methacrylate) .......................................... 150, 151

1491a Methyl-Substituted Polycyclic Aromatic Hydrocarbons in Toluene .. 96

1492 Chlorinated Pesticides/Hexane ............................................. 96

1493 PCB Congeners................................................................... 96

1494 Aliphatic Hydrocarbons........................................................ 96

1496 Polyethylene Gas Pipe Resin ....................................... 150, 151

1507b THC-COOH in Freeze-Dried Urine ......................................... 66

1508a Benzoylecgonine (Cocaine Metabolite) in Freeze-dried Urine... 66

1511 Multi Drugs of Abuse in Urine............................................... 66

1514 Thermal Analysis Purity Set (DSC)....................................... 155

1515 Apple Leaves............................................................. 109, 110

1543 GC/MS System Performance................................................ 96

1544 Fatty Acids/Cholesterol in Frozen Diet Composite.......... 102, 103

1546 Meat Homogenate...................................................... 102, 103

1547 Peach Leaves............................................................. 109, 110

1548a Typical Diet ................................................................ 102, 103

1549 Non-Fat Milk Powder.................................................. 102, 103

SRM Descriptor Page #

1566b Oyster Tissue ..................................................... 102, 103, 106

1567a Wheat Flour............................................................... 102, 103

1568a Rice Flour .................................................................. 102, 103

1570a Trace Elements in Spinach Leaves............... 102, 103, 109, 110

1573a Tomato Leaves........................................................... 109, 110

1575a Trace Elements in Pine Needles................................... 109, 110

1577c Bovine Liver............................................................... 102, 103

1580 Organics in Shale Oil ........................................................... 96

1582 Petroleum Crude Oil ............................................................ 96

1584 Priority Pollutant Phenols in Methanol................................... 96

1586 Isotope Label Pollutants....................................................... 96

1588c Organics in Fish Oil ............................................................. 96

1595 Tripalmitin........................................................................... 57

1596 Dinitropyrene Isomers and 1-Nitropyrene in Methylene Chloride ... 96

1597a Complex Mixture of Polycyclic Aromatic Hydrocarbons Coal Tar 96

1598a Inorganic Constituents in Animal Serum................................ 57

1599 2 Anticonvulsant Drugs........................................................ 57

1614 Dioxin in Isooctane .............................................................. 96

1616b Sulfur in Kerosene (Low Level) ........................................ 86, 88

1617a Sulfur in Kerosine (High Level)......................................... 86, 88

1619b Sulfur in Residual Fuel Oil (0.7%) .................................... 86, 89

1620c Sulfur in Residual Fuel Oil (4%) ....................................... 86, 89

1621e Sulfur in Residual Fuel Oil (1%) ....................................... 86, 89

1622e Sulfur in Residual Fuel Oil (2 %) ...................................... 86, 89

1623c Sulfur in Residual Fuel Oil (0.3%) .................................... 86, 89

1624d Sulfur in Diesel Fuel Oil, (0.4%)....................................... 86, 88

1632d Trace Elements in Coal, (Bituminous) .............. 76, 86, 89, 91, 92

1633c Trace Elements in Coal Fly Ash........................................ 91, 92

1634c Trace Elements in Fuel Oil.................................................... 85

1635a Trace Elements in Coal, (Subbitumimous)............. 86, 89, 91, 92

1639 Halocarbons (in Methanol).................................................... 96

1640a Trace Elements in Natural Water........................................... 74

1641d Mercury In Water................................................................. 74

1643e Trace Elements in Water ...................................................... 74

1646a Estuarine Sediment ...................................... 74, 126, 127, 128

1647e Priority Pollutant PAHs (in Acetonitrile) .................................. 96

1648a Urban Particulate Matter........................................... 71, 72, 74

1649b Urban Dust .................................................................... 71, 96

1650b Diesel Particulate Matter................................................. 71, 96

1655 Potassium Chloride, KCl (cr) for Solution Calorimetry ........... 154

1656 Thianthrene Combustion Calorimetry.................................. 154

1657 Synthetic Refuse-Derived Fuel............................................ 154

1658a Methane in Air (Nominal 1 umol/mol).................................... 80

1659a Methane in Air (Nominal 10 umol/mol).................................. 80

SRM Descriptor Page #

1660a Methane and Propane in Air (Nominal: Methane 4 μmol/mol; 

 Propane 1 μmol/mol)....................................................... 80

1661a Sulfur Dioxide in Nitrogen (Nominal 500 μmol/mol)................ 80

1662a Sulfur Dioxide in Nitrogen (Nominal 1000 µmol/mol) .... 80

1663a Sulfur Dioxide in Nitrogen (Nominal 1500 µmol/mol) .... 80

1664a Sulfur Dioxide in Nitrogen (Nominal 2500 μmol/mol).............. 80

1665b Propane in Air (Nominal 3 μmol/mol)..................................... 80

1666b Propane in Air (Nominal 10 μmol/mol)................................... 80

1667b Propane in Air (Nominal 50 μmol/mol)................................... 80

1668b Propane in Air (Nominal 100 μmol/mol)................................. 80

1669b Propane in Air (Nominal 500 μmol/mol)................................. 80

1674b Carbon Dioxide in Nitrogen (Nominal 7 % mol/mol)................ 80

1677c Carbon Monoxide in Nitrogen (Nominal 10 μmol/mol) ............ 80

1678c Carbon Monoxide in Nitrogen (Nominal 50 μmol/mol) ............ 80

1679c Carbon Monoxide in Nitrogen (Nominal 100 μmol/mol) .......... 80

1680b Carbon Monoxide in Nitrogen (Nominal 500 μmol/mol) .......... 80

1681b Carbon Monoxide in Nitrogen (Nominal 1000 μmol/mol) ........ 81

1683b Nitric Oxide in Nitrogen (Nominal 50 μmol/mol) ..................... 81

1684b Nitric Oxide in Nitrogen (Nominal 100 μmol/mol) ................... 81

1685b Nitric Oxide in Nitrogen (Nominal 250 μmol/mol) ................... 81

1686b Nitric Oxide in Nitrogen (Nominal 500 μmol/mol) ................... 81

1687b Nitric Oxide in Nitrogen (Nominal 1000 μmol/mol) ................. 81

1689 Sulfur Dioxide in Nitrogen..................................................... 81

1690 Polystyrene Spheres (1 μm Diameter Particle Size) .............. 188

1691 Polystyrene Spheres (0.3 μm Diameter Particle Size) ........... 188

1693a Sulfur Dioxide in Nitrogen (Nominal 50 μmol/mol).................. 81

1694a Sulfur Dioxide in Nitrogen (Nominal 100 μmol/mol)................ 81

1696a Sulfur Dioxide in Nitrogen (Nominal 3500 μmol/mol).............. 81

1710 Aluminum Alloy 3004 .......................................................... 23

1711 Aluminum Alloy 3004 .......................................................... 23

1712 Aluminum Alloy 3004 .......................................................... 23

1713 Aluminum Alloy 5182 .......................................................... 23

1714 Aluminum Alloy 5182 .......................................................... 23

1715 Aluminum Alloy 5182 .......................................................... 23

1727 Anode Tin ...................................................................... 28, 33

1728 Tin Alloy (Sn-3Cu-0.5Ag) ..................................................... 33

1729 Tin Alloy (97Sn-3Pb)............................................................ 33

1736 Zinc-Aluminum Alloy............................................................ 36

1737 Zinc-Aluminum Alloy............................................................ 37

1738 Zinc-Aluminum Alloy............................................................ 37

1739 Zinc-Aluminum Alloy............................................................ 37

1740 Zinc-Aluminum Alloy............................................................ 37

1741 Zinc-Aluminum Alloy............................................................ 37

1742 Zinc-Aluminum Alloy............................................................ 37

SRM Descriptor Page #

1745 Indium (Freezing Point) ...................................................... 155

1746 Silver (Freezing Point) ........................................................ 155

1747 Tin Freezing Point Cell ....................................................... 156

1748 Zinc Freezing Point Cell ..................................................... 156

1749 Gold vs. Platinum Thermocouple Thermometer.................... 157

1750 Standard Platinum Resistance Thermometer....................... 157

1751 Gallium Melting-Point ........................................................ 155

1754 Steel (AISI 4320) ................................................................... 7

1755 Nitrogen in Low Alloy Steel..................................................... 7

1761a Low Alloy Steel............................................................... 12, 13

1762a Low Alloy Steel............................................................... 12, 13

1763a Low Alloy Steel............................................................... 12, 13

1764a Low Alloy Steel............................................................... 12, 13

1765 Low Alloy Steel............................................................... 12, 13

1766 Low Alloy Steel............................................................... 12, 13

1767 Low Alloy Steel............................................................... 12, 13

1768 High-Purity Iron.............................................................. 12, 13

1772 Tool Steel (S-7) ................................................................... 17

1775 MP 35N Refractory Alloy................................................. 24, 30

1800b Eighteen Non-Methane Hydrocarbon Compounds

 in Nitrogen (Nominal 5 nmol/mol) ..................................... 81

1804c Toxic Volatile Organic Compounds in Nitrogen

 (Nominal 5.0 nmol/mol) ................................................... 81

1810a Linerboard ........................................................................ 204

1815a n-Heptane (Fuel Rating) ....................................................... 90

1816a Isooctane (Fuel Rating) ........................................................ 90

1818a Chlorine in Lub. Base Oil............................................. 141,142

1819a Sulfur in Lub. Base Oil ................................................ 141,142

1828b Ethanol-Water Solutions....................................................... 63

1829 Alcohols in Reference Fuels................................................. 84

1830 Soda Lime Float Glass....................................................... 132

1831 Soda Lime Sheet Glass...................................................... 132

1834 Fused Ore (Glass).............................................................. 132

1835 Borate Ore ......................................................... 116, 119, 120

1837 Methanol and Butanol (in Gasoline)....................................... 84

1838 Ethanol (in Gasoline)............................................................ 84

1839 Methanol (in Gasoline) ......................................................... 84

1845 Cholesterol in Whole Egg Powder ................................. 102, 104

1847 Ethanol-Water Solutions....................................................... 63

1848 Lubricating Oil Additive Package.................................. 141, 142

1849a Infant/Adult Nutritional Formula ................................... 102, 104

1857 Tool Steel for Abrasive Wear............................................... 195

1872 Synthetic Glass ................................................................... 41

1873 Synthetic Glass ................................................................... 41
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Numeric Index Numeric Index

SRM Descriptor Page #

1877 Beryllium Oxide Powder....................................................... 71

1878a Respirable Alpha Quartz................................................ 71, 186

1879a Respirable Cristobalite .................................................. 71, 186

1880b Portland Cement ........................................................ 136, 137

1881a Portland Cement ........................................................ 136, 137

1882a Calcium Aluminate Cement......................................... 136, 137

1883a Calcium Aluminate Cement......................................... 136, 137

1884b Portland Cement ........................................................ 136, 137

1885a Portland Cement ........................................................ 136, 137

1886a Portland Cement (White Portland Cement with Low Iron) 136, 137

1887a Portland Cement ........................................................ 136, 137

1888b Portland Cement ........................................................ 136, 137

1889a Portland Cement (Blended with Limestone) .................. 136, 137

1893 Copper Microhardness Test Block (Knoop)........................... 194

1894a Microhardness Cu-Vickers................................................. 194

1895 Nickel Microhardness Test Block (Knoop) ............................ 194

1896b Microhardness Ni-Vickers.................................................. 194

1898 Titanium Dioxide Nanomaterial........................................... 191

1900 Specific Surface Area Standard ......................................... 191

1905 Microhardness, Ni-Knoop................................................... 194

1906 Microhardness, Ni-Knoop................................................... 194

1907 Microhardness, Ni-Knoop................................................... 194

1908 Vickers Microhardness of Nickel......................................... 194

1909 Vickers Microhardness of Nickel......................................... 194

1917 Mercury Porosimetry Standard........................................... 191

1918 Mercury Porosimeter Intrusion Standard ............................. 191

1921b IR Transmission Wavelength (Polystyrene Film) .................... 160

1922 Liquid Refractive Index - Mineral Oil .................... 161, 162, 165

1932 Fluorescein Solution ................................................... 162, 163

1935a Potassium Dichromate Solution/UV Absorbance Standard .... 160

1939a PCBs in River Sediment A .................................................... 96

1941b Organics in Marine Sediment ............................................... 96

1944 New York/New Jersey WaterwaySediment................. 74, 76, 96, 

New York/New Jersey Waterway Sediment.............126, 127, 128 

1945 Organics in Whale Blubber................................................... 96

1946 Lake Superior Fish Tissue ........................ 74, 96, 102, 104, 106

1947 Lake Michigan Fish Tissue ...................... 74, 96, 102, 104, 106

1950 Metabolites in Human Plasma.................................... 57, 60, 62

1951b Lipids in Frozen Human Serum................................... 57, 60, 62

1952a Cholesterol in Human Serum...................................... 57, 60, 62

1953 Organic Contaminants in Non-Fortified Human Milk......... 96, 106

1954 Organic Contaminants in Fortified Human Milk ................ 96, 106

1955 Homocysteine and Folate in Frozen Human Serum ...... 57, 60, 62

1957 Organic Contaminants in Non-Fortified Human Serum ..... 60, 62, 96

SRM Descriptor Page #

1958 Organic Contaminants in Fortified Human Serum........ 60, 62, 96

1959 Drugs of Abuse in Frozen Human Serum.................... 60, 62, 66

1961 Polystyrene Spheres (30 μm Diameter Particle Size) ............ 188

1963a Nominal 100 nm Diameter Polystyrene Spheres ................. 188

1964 Nominal 60 nm Diameter Polystyrene Spheres.................... 188

1965 Polystyrene Spheres (on Slide) (10 μm Particle Size)............ 188

1967 Platinum Thermocouple Wire.............................................. 157

1968 Gallium Melting Point......................................................... 156

1969 Rubidium Triple Point......................................................... 156

1970 Succinonitrile Triple Point ................................................... 156

1971 Indium Freezing-Point........................................................ 156

1972 1,3-Dioxolan-2-one Triple Point.......................................... 156

1974c Organics in Mussel Tissue, (Mytilus edulis)............................ 96

1975 Diesel Particulate Extract ................................................ 71, 96

1976b Instrument Response Std for, X-Ray Powder Diffraction........ 186

1978 Zirconium Oxide (Particle Size) ........................................... 188

1980 Positive Electrophoretic Mobility ......................................... 191

1982 Zirconia Thermal Spray Powder.......................................... 188

1984 Thermal Spray Powder - Particle Size Distribution

 Tungsten Carbide/Cobalt (Acicular) ................................. 188

1985 Thermal Spray Powder - Particle Size Distribution

 Tungsten Carbide/Cobalt (Spheroidal) ............................. 188

1990 Lattice Parameter/Single, Crystal (Ruby Spheres) ................ 186

1994 Standard Silicon Single Crystal Wafer for

 Crystalline Orientation..................................................... 186

1995 Standard Sapphire Single Crystal Wafer

 for Crystalline Orientation................................................. 186

2000 Calibration Standard for High-Resolution X-Ray Diffraction... 186

2009a Didymium......................................................................... 160

2012 Calibration Standard for High Resolution X Ray Diffraction.... 186

2031a Metal-on-Quartz Filters.................................................160, 166

2034 Holmium Oxide Solution..................................................... 160

2035a Near Infrared Wavelength/Wavenumber.............................. 160

2036 Near-IR Wavelength/Wavenumber Reflection........ 160, 162, 163

2037 Solvent Red 24 Diesel Fuel Dye..................................... 90, 160

2059 Photomask Linewidth Calibration Standard ......................... 178

2061 Ti Alloy, Al-Nb-W ........................................................... 35, 40

2062 Ti Alloy, Al-Nb-W .......................................................... 35, 40

2063a Mineral Glass (Thin Film)...................................................... 42

2066 K-411 Glass Microspheres................................................... 41

2071b Sinusoidal Roughness........................................................ 195

2072 Sinusodial Roughness........................................................ 195

2073a Sinusoidal Roughness........................................................ 195

2074 Sinusoidal Roughness........................................................ 195

SRM Descriptor Page #

2075 Sinusoidal Roughness........................................................ 195

2087 Dimensional Standard for Medical Computed

 Tomography.................................................................. 206

2092 Low-Energy Charpy V-Notch Impact Specimen

 (NIST-Verification).......................................................... 204

2093 Low Energy Charpy V-Notch Impact Specimen

 (Self-Verification) .......................................................... 204

2096 High-Energy Charpy V-Notch Impact Specimen

 (NIST-Verification).......................................................... 204

2097 High Energy Charpy V-Notch Impact Specimen

 (Self-Verification)........................................................... 204

2098 Super High-Energy Charpy V-Notch Impact Specimen

 (NIST-Verification).......................................................... 204

2100 Fracture Toughness of Ceramic .......................................... 206

2112 Dynamic Impact Force Verific Specimens (Nominal 24kN) .... 204

2113 Dynamic Impact Force Verific, Specimens (Nominal 33kN) ... 204

2115 Low Energy Izod Impact Specimen (NIST-Verification) .......... 204

2133 Phosphorus Implant in Si Depth Profile ............................... 179

2134 Arsenic in Silicon............................................................... 179

2135c Ni-Cr Thin Film Depth Profile.............................................. 179

2137 B Implant in Si Depth Profile............................................... 179

2139 Zinc-Aluminum Alloy............................................................ 37

2141 Urea ................................................................................... 48

2143 p-Fluorobenzoic Acid ........................................................... 48

2144 m-Chlorobenzoic Acid.......................................................... 48

2151 Nicotinic Acid (Combustion Calorimetric Standard)............... 154

2152 Urea (Combustion Calorimetric Standard)............................ 154

2159 LA Steel, Carbon & Sulfur only ............................................ 4, 5

2160 LA Steel, Carbon & Sulfur only ............................................ 4, 5

2165 Low Alloy Steel................................................................... 4, 5

2166 LA Steel, F ......................................................................... 4, 5

2167 LA Steel, G......................................................................... 4, 5

2168 High Purity Iron .................................................................. 4, 5

2171 LA Steel, (HSLA 100)............................................................. 3

2172 S-7 Tool Steel ....................................................................... 9

2175 MP 35N Refractory Alloy................................................. 24, 30

2181 HEPES Free Acid ............................................................... 146

2182 NaHEPESate ..................................................................... 146

2183 MOPSO Free Acid.............................................................. 146

2184 NaMOPSOate.................................................................... 146

2185 Pot. Hydrogen Phthalate .................................................... 147

2186i Potassium Dihydrogen Phosphate ...................................... 147

2186-II Disodium Hydrogen Phosphate........................................... 147

2191a Sodium Bicarbonate .......................................................... 147

SRM Descriptor Page #

2192a Sodium Carbonate............................................................. 147

2193a Calcium Carbonate pH Standard......................................... 146

2201 Sodium Chloride (Ion-Selective).......................................... 147

2202 Potassium Chloride (Ion-Selective Electrodes)...................... 147

2203 Potassium Fluoride (Ion-Selective Electrodes)...................... 147

2206 Controlled Pore Glass - BET Specific Surface Area (300nm)... 191

2207 Controlled Pore Glass - BET Specific Surface Area (18nm) ... 191

2214 Isooctane Liquid Density.................................................... 184

2225 Mercury (Differential Scanning Calorimeters)....................... 154

2232 Indium DSC Calibration Standard - Temperature

 and Enthalpy of Fusion .................................................. 154

2234 Gallium for Thermal Analysis.............................................. 154

2235 Bismuth for Thermal Analysis............................................. 154

2241 Relative Intensity Correction Standard

 for Raman Spectroscopy: 785 nm Excitation ........... 162, 163

2242 Relative Intensity Correction Standard

 for Raman Spectroscopy: 532 nm Excitation ............ 162, 163

2243 Relative Intensity Correction Standard for Raman

 Spectroscopy: 488 nm and 514.5 nm Excitation ...... 162, 163

2244 Relative Intensity Correction Standard for Raman

 Spectroscopy: 1064 nm Excitation........................... 162, 163

2245 Relative Intensity Correction Standard for Raman

 Spectroscopy: 633 nm Excitation............................ 162, 163

2246 Relative Intensity Correction Standard for

 Raman Spectroscopy: 830 nm Excitation ................. 162, 163

2257 PBDE Congeners in 2,2,4-Trimethylpentane.......................... 96

2258 BDE 209 in 2,2,4-Trimethylpentane...................................... 96

2259 PCB Congeners in 2,2,4-Trimethylpentane............................ 96

2260a Aromatic Hydrocarbon in Toluene ......................................... 97

2261 Chlorinated Pesticides in Hexane.......................................... 97

2262 Chlorinated Biphenyl Cogeners in Isooctane .......................... 97

2264 Nitrated Aromatic Hydrocarbons in Methylene Chloride I ........ 97

2265 Nitrated Polycyclic Hyrocarbons in Methylene Chloride II ........ 97

2266 Hopanes and Steranes in, 2,2,4 Trimethylpentane ................. 97

2267 Deuterated Levoglucosan in Ethyl Acetate ............................. 97

2268 Carbon-13 Labeled Levoglucosan in Ethyl Acetate................. 97

2269 Perdeuterated PAH-I Solution in Hexane/Toluene ................... 97

2270 Perdeuterated PAH-II Solution in Hexane/Toluene .................. 97

2273 Chlorinated Pesticides (DDTs) and Metabolites in Isooctane ... 97

2274 PCB Congener Solution-II in Isooctane .................................. 97

2275 Chlorinated Pesticide Solution-II in Isooctane......................... 97

2276 Three Planar Polychlorinated Biphenyl (PCB) Congeners

 in Isooctane .................................................................... 97

2285 Arson Test Mixture in Methylene Chloride............................ 100
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218 219

Numeric Index Numeric Index

SRM Descriptor Page #

2286 Ethanol (in Gasoline)............................................................ 84

2287 Ethanol (in Gasoline)............................................................ 84

2288 t-Amyl-methyl Ether (in Gasoline) ......................................... 84

2289 t-Amyl-methyl Ether (in Gasoline) ......................................... 84

2290 Ethyl-t-butyl Ether (in Gasoline) ............................................ 84

2291 Ethyl-t-butyl Ether (in Gasoline) ............................................ 84

2293 Methyl-t-butyl Ether (in Gasoline).......................................... 84

2294 Reformulated Gasoline (nominal 11% MTBE) ............ 84, 86, 88

2295 Reformulated Gasoline (nominal 15% MTBE) ............. 84, 86, 88

2296 Reformulated Gasoline (nominal 13% ETBE) .............. 84, 87, 88

2297 Reformulated Gasoline (nominal 10% Ethanol) .......... 84, 87, 88

2298 Sulfur in Gasoline (High-Octane)...................................... 87, 88

2299 Sulfur in Gasoline (Reformulated)..................................... 87, 88

2321 Sn-Pb Alloy Coating........................................................... 180

2366 Cytomegalovirus (CMV) for DNA Measurements ............... 58, 67

2372 Human DNA Quantitation Standard....................................... 67

2377 Fatty Acid Methyl Esters in, 2,2,4-Trimethylpentane.......... 93, 97

2379 Drugs of Abuse in Human Hair I............................................ 66

2380 Drugs of Abuse in Human Hair II........................................... 66

2381 Morphine and Codeine in Urine ............................................ 66

2382 Morphine Glucuronide in Urine ............................................. 66

2383 Baby Food Composite.................................................. 102, 104

2384 Baking Chocolate ....................................................... 102, 104

2385 Slurried Spinach.................................................... 74, 102,104

2387 Peanut Butter............................................... 74, 102, 104, 106

2389a Amino Acids in 0.1 mol/L Hydrochloric Acid .......................... 58

2391c PCR Based DNA Profiling Standard....................................... 67

2392 Mitochondrial DNA Sequencing ............................................ 67

2392-I Mitochondrial DNA Sequencing ............................................ 67

2393 CAG Repeat Length Mutation in Huntington’s Disease............ 67

2394 Heteroplasmic Mitochondrial DNA Mutation

 Detection Std .................................................................. 67

2395 Human Y-Chromosome DNA Profiling Standard ..................... 67

2396 Oxidative DNA Damage Mass Spectrometry Standards.......... 67

2399 Fragile X Human DNA Triplet Repeat Standard....................... 67

C2400 HA Steel ACI (17/4 PH) ........................................................ 14

C2401 HA Steel (ACI-C-4M-Cu) ...................................................... 14

C2402 Hastelloy7C......................................................................... 30

C2415 Battery Lead ....................................................................... 29

C2416 Bullet Lead ......................................................................... 29

C2417 Lead-Base Alloy.................................................................. 29

C2418 High-Purity Lead ................................................................. 29

C2424 Ductile Iron C...................................................................... 20

2426 55 % Aluminum - Zinc Alloy............................................ 23, 37

SRM Descriptor Page #

2430 Scheelite Ore ..................................................... 116, 119, 120

2431 Titanium Base Alloy............................................................. 35

2432 Titanium Base Alloy............................................................. 35

2433 Titanium Alloy ..................................................................... 35

2451 Fine Carbon (Activated) - From Cyanide Ore Leaching....... 74, 76

2452 Hydrogen In Titanium Alloy................................................... 35

2453 Hydrogen In Titanium Alloy................................................... 35

2454 Hydrogen In Titanium Alloy................................................... 35

2460 Standard Bullet ................................................................. 100

2461 Standard Cartridge Case.................................................... 100

2483 Single-Wall Carbon Nanotubes (Raw Soot) ............................ 44

2490 Non-Newtonian Polymer Solution for Rheological

 Measurements....................................................... 150, 152

2491 Non-Newtonian Polymer Melt for Rheology .................. 150, 152

2492 Bingham Paste Mixture for Rheological

 Measurements............................................... 150, 151, 152

2514 Wavelength Calibration Reference for 1560 nm to 1595 nm

 (Carbon Monoxide C-12/O-16)....................................... 179

2515 Wavelength Calibration Reference for 1595 nm to 1630 nm

 (Carbon Monoxide C-13/O-16)....................................... 179

2517a High Resolution Wavelength Calibration Reference

 for 1510-1540 nm Acetylene 12C2H2 ........................... 179

2518 Polarization Mode Dispersion ............................................. 179

2519a High Resolution Wavelength Calibration

 Reference for 1530-1565 nm Hydrogen Cyanide ........... 179

2520 Optical Fiber Diameter....................................................... 179

2522 Pin Gage for Optical Fiber Ferrules..................................... 179

2523 Optical Fiber Ferrule Geometry........................................... 179

2538 Polarization-Mode Dispersion (Non-Mode-Coupled) ............. 179

2541 Silicon Resistivity............................................................... 176

2543 Silicon Resistivity............................................................... 176

2546 Silicon Resistivity............................................................... 176

2556 Recycled Pellet (Autocatalyst)............................................... 77

2557 Recycled Monolith (Autocatalyst) .......................................... 77

2569 Lead Paint Films for Children’s Products............................... 72

2570 Lead Paint Film, White/Blank Nominal <0.001 mg/cm2......... 72

2571 Lead Paint Film (Yellow), Nominal 3.5 mg/cm2...................... 72

2572 Lead Paint Film (Orange), Nominal 1.6 mg/cm2 .................... 72

2573 Lead Paint Film (Red), Nominal 1.0 mg/cm2 ......................... 72

2574 Lead Paint Film (Gold), Nominal 0.7 mg/cm2 ........................ 72

2575 Lead Paint Film (Green), Nominal 0.3 mg/cm2 ...................... 72

2576 Lead Paint Film, High Level.................................................. 72

2579a Lead Paint Films for Portable XRF Analyzers.......................... 72

2580 Powdered Paint Nominal 4% Lead........................................ 72

SRM Descriptor Page #

2581 Powdered Paint Nominal 0.5 % Lead.................................... 72

2582 Powdered Paint Nominal 200mg/kg Lead ............................. 72

2583 Trace Elements in Indoor Dust................................... 71, 72, 75

2584 Trace Elements in Indoor Dust................................... 71, 72, 75

2585 Organic Contaminants in House Dust............................... 71, 97

2586 Trace Elements in Soil (contains lead from paint) .............. 72, 75

 Trace Elements in Soil (contains lead from paint) 126, 127, 128

2587 Trace Elements in Soil (contains lead from paint) .............. 72, 75

 Trace Elements in Soil (contains lead from paint) 126, 127, 128

2589 Powdered Paint Nominal 10% Lead...................................... 72

2612a Carbon Monoxide in Air (Nominal 10 μmol/mol)..................... 81

2613a Carbon Monoxide in Air (Nominal 20 μmol/mol)..................... 81

2614a Carbon Monoxide in Air (Nominal 42 μmol/mol)..................... 81

2617 Carbon Dioxide in Nitrogen (Nominal 500 μmol/mol).............. 81

2619a Carbon Dioxide in Nitrogen (Nominal 0.5 % mol/mol)............. 81

2620a Carbon Dioxide in Nitrogen (Nominal 1.0 % mol/mol)............. 81

2621a Carbon Dioxide in Nitrogen (Nominal 1.5 % mol/mol)............. 81

2622a Carbon Dioxide in Nitrogen (Nominal 2.0 % mol/mol)............... 81

2623a Carbon Dioxide in Nitrogen (Nominal 2.5 % mol/mol)............. 81

2624a Carbon Dioxide in Nitrogen (Nominal 3.0 % mol/mol)............. 81

2625a Carbon Dioxide in Nitrogen (Nominal 3.5 % mol/mol)............. 81

2627a Nitric Oxide in Nitrogen (Nominal 5 μmol/mol) ....................... 81

2628a Nitric Oxide in Nitrogen (Nominal 10 μmol/mol) ..................... 81

2629a Nitric Oxide in Nitrogen (Nominal 20 μmol/mol) ..................... 81

2630 Nitric Oxide in Nitrogen (Nominal 1500 μmol/mol) ................. 81

2631a Nitric Oxide in Nitrogen (Nominal 3000 μmol/mol) ................. 81

2635a Carbon Monoxide in Nitrogen (Nominal 25 μmol/mol) ............ 81

2636a Carbon Monoxide in Nitrogen (Nominal 250 μmol/mol) .......... 81

2637a Carbon Monoxide in Nitrogen (Nominal 2500 μmol/mol) ........ 82

2638a Carbon Monoxide in Nitrogen (Nominal 5000 μmol/mol) ........ 82

2639a Carbon Monoxide in Nitrogen (Nominal 1 % mol/mol) ............ 82

2640a Carbon Monoxide in Nitrogen (Nominal 2 % mol/mol) ............ 82

2641a Carbon Monoxide in Nitrogen (Nominal 4 % mol/mol) ............ 82

2642a Carbon Monoxide in Nitrogen (Nominal 8 % mol/mol) ............ 82

2644a Propane in Nitrogen (Nominal 250 μmol/mol)........................ 82

2646a Propane in Nitrogen (Nominal 1000 μmol/mol)...................... 82

2647a Propane in Nitrogen (Nominal 2500 μmol/mol)...................... 82

2657a Oxygen in Nitrogen (Nominal 2 % mol/mol) ........................... 82

2658a Oxygen in Nitrogen (Nominal 10 % mol/mol) ......................... 82

2659a Oxygen in Nitrogen (Nominal 21 % mol/mol) ......................... 82

2660a Total Oxides of Nitrogen (NOx) in Air (Nominal 100 μmol/mol). 82

2668 Toxic Elements in Frozen Human Urine........................ 58, 64, 65

2669 Arsenic Species in Frozen Human Urine...................... 58, 64, 65

2670a Toxic Elements in Urine (Freeze-Dried) ........................ 58, 64, 65

SRM Descriptor Page #

2678 Membrane Blank Filter......................................................... 70

2681 Ashless Blank Filter............................................................. 70

2682b Subbituminous Coal (Sulfur, Mercury, and Chlorine) .......... 87, 89

2683c Bituminous Coal (Sulfur, Mercury, and Chlorine)................ 87, 89

2684b Bituminous Coal (Sulfur and Mercury) ............................. 87, 89

2685b Bituminous Coal (Sulfur, Mercury, and Chlorine)................ 87, 89

2686a Portland Cement Clinker.................................................... 138

2687 Portland Cement Clinker.................................................... 138

2688 Portland Cement Clinker.................................................... 138

2689 Coal Fly Ash........................................................... 91, 92, 190

2690 Coal Fly Ash........................................................... 91, 92, 190

2691 Coal Fly Ash........................................................... 91, 92, 190

2692c Bituminous Coal (Sulfur, Mercury and Chlorine) ..................... 89

2693 Bituminous Coal (Sulfur, Mercury, and Chlorine)................ 87, 89

2695 Fluoride in Vegetation ................................................. 109, 110

2696 Silica Fume................................................ 132, 136, 137, 191

2701 Hexavalent Chromium in Contaminated Soil

 (High Level).................................................... 126, 127, 128

2702 Inorganics in Marine Sediment ...................... 75, 126, 127, 128

2703 Sediment for Solid Sampling (Small, Sample)

 Analytical Techniques................................. 75, 126, 127, 128

2709a San Joaquin Soil ........................................... 75,126, 127, 128

2710a Montana I Soil............................................... 75, 126, 127, 128

2711a Montana II Soil .............................................. 75,126, 127, 128

2716 Sulfur in Gasoline (<1 mg/kg) ......................................... 87, 88

2717a Sulfur in Residual Fuel Oil (3%) ....................................... 87, 89

2718 Green Petroleum Coke.................................. 76, 87, 89, 91, 92

2719 Calcined Petroleum Coke.............................. 76, 87, 89, 91, 92

2720 Sulfur in Di-n-Butyl Sulfide.............................................. 87, 88

2721 Crude Oil (Light -Sour).................................................... 87, 90

2722 Crude Oil (Heavy Sweet).................................................. 87, 90

2723a Sulfur in Diesel Fuel Oil................................................... 87, 88

2730 Hydrogen Sulfide in Nitrogen (Nominal 5 μmol/mol) ............... 82

2731 Hydrogen Sulfide in Nitrogen (Nominal 20 μmol/mol) ............. 82

2735 Nitric Oxide in Nitrogen (Nominal 800 μmol/mol) ................... 82

2737 Nitric Oxide in Nitrogen (500 nmol/mol) ................................ 82

2738 Nitric Oxide in Nitrogen (Nominal 1000 nmol/mol) ................. 82

2740a Carbon Monoxide in Nitrogen (Nominal 10 % mol/mol) .......... 82

2741a Carbon Monoxide in Nitrogen (Nominal 13 % mol/mol) .......... 82

2745 Carbon Dioxide in Nitrogen (Nominal 16 % mol/mol).............. 82

2750 Methane in Air (Nominal 50 μmol/mol).................................. 82

2751 Methane in Air (Nominal 100 μmol/mol)................................ 82

2764 Propane in Air (Nominal 0.25 μmol/mol)................................ 82

2765 Propane in Air (Nominal 100 nmol/mol)................................. 82
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220 221

Numeric Index Numeric Index

SRM Descriptor Page #

2770 Sulfur in Diesel Fuel Oil (40 mg/kg) ................................. 87, 88

2771 Sulfur in Diesel Fuel Blend Stock ..................................... 87, 88

2772 B100 Biodiesel (Soy-Based)................................................. 93

2773 B100 Biodiesel (Animal-Based) ................................. 87, 88, 93

2775 Foundry Coke........................................................... 76, 87, 90

2776 Furnace Coke........................................................... 76, 87, 90

2779 Gulf of Mexico Crude Oil ...................................................... 97

2780 Hard Rock Mine Waste ................................. 75, 126, 127, 128

2781 Domestic Sludge .......................................... 75, 126, 127, 128

2782 Industrial Sludge .......................................... 75, 126, 127, 128

2783 Air Particulate on Filter Media ................................... 69, 72, 75

2786 Fine Particulate Matter (<4 μm) ...................................... 71, 97

2787 Fine Particulate Matter ( <10 μm) ................................... 71, 97

2798a Vickers Microhardness of Nickel......................................... 194

2800 Microscope Magnification Standard............................. 178, 180

2806a Medium Test Dust (MTD) in Hydraulic Fluid ......................... 192

2810 Rockwell C Hardness, Low Range....................................... 196

2811 Rockwell C Hardness, Mid Range ....................................... 196

2812 Rockwell C Hardness, High Range ...................................... 196

2816 Rockwell Hardness 15N Scale Low Range

 (Nominal 72 HR 15N)..................................................... 196

2817 Rockwell Hardness 15N Scale Mid Range

 (Nominal 83 HR 15N)..................................................... 196

2818 Rockwell Hardness 15N Scale,High Range

 (Nominal 91 HR 15N)..................................................... 196

2819 Rockwell Hardness 30N Scale Low Range

 (Nominal 45 HR30N)...................................................... 196

2820 Rockwell Hardness 30N Scale Mid Range

 (Nominal 64 HR30N)...................................................... 196

2821 Rockwell Hardness 15N Scale High Range

 (Nominal 79 HR30N)...................................................... 196

2828 Knoop Microhardness of Steel............................................ 194

2829 Vickers Microhardness of Steel .......................................... 194

2830 Microhardness, Ceramic-Knoop ......................................... 194

2831 Vickers Hardness, Ceramics and Hardmetals....................... 194

2841 Semiconductor Thin Film: AlxGa1-xAs Epitaxial Layers.......... 43

2842 Semiconductor Thin Film: A1xGa1-xAs Epitaxial Layers.......... 43

2853 Magnetic Moment Standard - Yttrium Iron Garnet Sphere .... 206

2855 Additive Elements in Polyethylene......................................... 75

2870 Relative Permittivity and Loss Tangent,

 1422 Cross-Linked Polystyrene...................................... 182

2881 Polystyrene Absolute Molecular Mass

 Distribution Standard.............................................. 150, 151

2885 Polyethylene (6280 g/mol) .......................................... 150, 151

SRM Descriptor Page #

2886 Polyethylene (87000 g/mol) ........................................ 150, 151

2887 Polyethylene (196,400 g/mol) ..................................... 150, 151

2890 Water Saturated 1-Octanol .................................................. 90

2891 Ethanol-Water Solution (nom., 0.02 %)................................. 63

2892 Ethanol-Water Solution (nom., 0.04 %)................................. 63

2893 Ethanol-Water Solution (nom., 0.08 %)................................. 63

2894 Ethanol-Water Solution (nom., 0.1 %)................................... 63

2895 Ethanol-Water Solution (nom., 0.2 %)................................... 63

2896 Ethanol-Water Solution (nom., 0.3 %)................................... 63

2897 Ethanol-Water Solution, (nom. 2%) ....................................... 63

2898 Ethanol-Water Solution, (nom. 6%) ....................................... 63

2899a Ethanol-Water Solution, (nominal 25 % by mass)................... 63

2900 Ethanol-Water Solution, (nominal 95.6%).............................. 63

2905 Trace Particulate Explosive Simulants ................................. 100

2906 Trace Explosives Calibration Solutions................................. 100

2907 Trace Terrorist Explosives Simulants.................................... 100

2910a Calcium Hydroxyapatite ....................................................... 68

2921 Human Cardiac Troponin Complex............................. 58, 60, 62

2940 Relative Intensity Correction Standard for Fluorescence

 Spectroscopy: Orange Emission 412 nm.................. 162, 163

2941 Relative Intensity Correction Standard for Fluorescence

 Spectroscopy: Green Emission 427 nm.................... 162, 163

2942 Relative Intensity Correction Standard for Fluorescence

 Spectroscopy: Ultraviolet Emission 310.0 nm........... 162, 163

2943 Relative Intensity Correction Standard for Fluorescence

 Spectroscopy: Blue Emission................................... 162, 163

2944 Relative Intensity Correction Standard for Fluorescence

 Spectroscopy: Red Emission ................................... 162, 163

2950 Respirable Alpha Quartz on Filter Media, 10-500 μg.............. 69

2951 Respirable Alpha Quartz on Filter Media, 5 μg ....................... 69

2952 Respirable Alpha Quartz on Filter Media, 10 μg ..................... 69

2953 Respirable Alpha Quartz on Filter Media, 20 μg ..................... 69

2954 Respirable Alpha Quartz on Filter Media, 50 μg ..................... 69

2955 Respirable Alpha Quartz on, Filter Media, 100 μg .................. 69

2956 Respirable Alpha Quartz on Filter Media, 250 μg ................... 69

2957 Respirable Alpha Quartz on Filter Media, 500 μg ................... 69

2958 Respirable Alpha Quartz on Filter Media, 1000 μg ................. 69

2960 Respirable Cristobalite on Filter Media, 5 ug - 250 ug ........... 69

2961 Respirable Cristobalite on Filter Media, 5 ug.......................... 69

2962 Respirable Cristobalite on Filter Media, 10 ug........................ 69

2963 Respirable Cristobalite on Filter Media, 20 ug........................ 69

2964 Respirable Cristobalite on Filter Media, 50 ug........................ 69

2965 Respirable Cristobalite on Filter Media, 100 ug...................... 69

2966 Respirable Cristobalite on Filter Media, 250 ug...................... 69

SRM Descriptor Page #

2967 Respirable Cristobalite on Filter Media, 500 ug...................... 69

2972 25-Hydroxyvitamin D2 and D3 Calibration Solutions.............. 58

2974a Organics in Freeze-Dried Mussel Tissue (Mytilus edulis)......... 97

2975 Diesel Particulate Matter................................................. 71, 97

2976 Mussel Tissue (Trace Elements & Methylmercury) Freeze-dried 75

3000 Benzene in Methanol........................................................... 98

3001 Toluene in Methanol ............................................................ 98

3002 Ethylbenzene in Methanol .................................................... 98

3003 o-Xylene in Methanol........................................................... 98

3004 m-Xylene in Methanol.......................................................... 98

3005 p-Xylene in Methanol........................................................... 98

3006 Carbon Tetrachloride in Methanol ......................................... 98

3008 Methylene Chloride in Methanol

 (Nominal Mass Fraction, 0.01 g/g).................................... 98

3009 1,2-Dichloropropane in Methanol

 (Nominal Mass Fraction - 0.01 g/g) .................................. 98

3010 Tetrachloroethene (Tetrachloroethylene) in Methanol.............. 98

3011 1,1,1-Trichloroethane in Methanol

 (Nominal Mass Fraction, 0.01 g/g).................................... 98

3012 1,2-Dichloroethane in Methanol

 (Nominal Mass Fraction, 0.01 g/g).................................... 98

3014 1,2,3-Trichloropropane in Methanol

 (Nominal Mass Fraction - 0.01 g/g) .................................. 98

3015 Isopropylbenzene in Methanol .............................................. 98

3016 sec-Butylbenzene in Methanol.............................................. 98

3064 Endothall in Water ............................................................... 98

3067 Toxaphene in Methanol........................................................ 98

3068 Chlordane in Methanol......................................................... 98

3074 Phthalates in Methanol ........................................................ 98

3075 Aroclor 1016 in Transformer Oil ........................................... 98

3076 Aroclor 1232 in Transformer Oil ........................................... 98

3077 Aroclor 1242 in Transformer Oil ........................................... 99

3078 Aroclor 1248 in Transformer Oil ........................................... 99

3079 Aroclor 1254 in Transformer Oil ........................................... 99

3080 Aroclor 1260 in Transformer Oil ........................................... 99

3081 Aroclor 1016 in Methanol .................................................... 99

3082 Aroclor 1232 in Methanol .................................................... 99

3083 Aroclor 1242 in Methanol .................................................... 99

3084 Aroclor 1248 in Methanol .................................................... 99

3085 Aroclor 1254 in Methanol .................................................... 99

3086 Aroclor 1260 in Methanol .................................................... 99

3090 Aroclors in Transformer Oil................................................... 99

3091 Aroclors in Methanol............................................................ 99

3101a Aluminum (Al) Standard Solution .......................................... 49

SRM Descriptor Page #

3102a Antimony (Sb) Standard Solution .......................................... 49

3103a Arsenic (As) Standard Solution ............................................. 49

3104a Barium (Ba) Standard Solution.............................................. 49

3105a Beryllium (Be) Standard Solution ......................................... 49

3106 Bismuth (Bi) Standard Solution ............................................. 49

3107 Boron (B) Standard Solution ................................................. 49

3108 Cadmium (Cd) Standard Solution.......................................... 49

3109a Calcium (Ca) Standard Solution ............................................ 49

3110 Cerium (Ce) Standard Solution ............................................. 49

3111a Cesium (Cs) Standard Solution ............................................. 49

3112a Chromium (Cr) Standard Solution ......................................... 49

3113 Cobalt (Co) Standard Solution............................................... 49

3114 Copper (Cu) Standard Solution ............................................. 49

3115a Dysprosium (Dy) Standard Solution....................................... 49

3116a Erbium (Er) Standard Solution............................................... 49

3117a Europium (Eu) Standard Solution .......................................... 49

3118a Gadolinium (Gd) Standard Solution ....................................... 50

3119a Gallium (Ga) Standard Solution............................................. 50

3120a Germanium (Ge) Standard Solution....................................... 50

3121 Gold (Au) Standard Solution ................................................. 50

3122 Hafnium (Hf) Standard Solution............................................. 50

3123a Holmium (Ho) Standard Solution........................................... 50

3124a Indium (In) Standard Solution ............................................... 50

3126a Iron (Fe) Standard Solution................................................... 50

3127a Lanthanum (La) Standard Solution........................................ 50

3128 Lead (Pb) Standard Solution................................................. 50

3129a Lithium (Li) Standard Solution............................................... 50

3130a Lutetium (Lu) Standard Solution ........................................... 50

3131a Magnesium (Mg) Standard Solution ...................................... 50

3132 Manganese (Mn) Standard Solution ...................................... 50

3133 Mercury (Hg) Standard Solution............................................ 50

3134 Molybdenum (Mo) Standard Solution .................................... 50

3135a Neodymium (Nd) Standard Solution ...................................... 50

3136 Nickel (Ni) Standard Solution ................................................ 50

3137 Niobium (Nb) Standard Solution............................................ 50

3138 Palladium (Pd) Standard Solution.......................................... 50

3139a Phosphorus (P) Standard Solution........................................ 50

3140 Platinum (Pt) Standard Solution ............................................ 50

3141a Potassium (K) Standard Solution........................................... 50

3142a Praseodymium (Pr) Standard Solution................................... 50

3143 Rhenium (Re) Standard Solution ........................................... 50

3144 Rhodium (Rh) Standard Solution ........................................... 50

3145a Rubidium (Rb) Standard Solution .......................................... 50

3147a Samarium (Sm) Standard Solution ........................................ 50
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222 223

Numeric Index Numeric Index

SRM Descriptor Page #

3148a Scandium (Sc) Standard Solution.......................................... 50

3149 Selenium (Se) Standard Solution........................................... 50

3150 Silicon (Si) Standard Solution................................................ 50

3151 Silver (Ag) Standard Solution ................................................ 50

3152a Sodium (Na) Standard Solution............................................. 50

3153a Strontium (Sr) Standard Solution........................................... 50

3154 Sulfur (S) Standard Solution ................................................. 50

3155 Tantalum (Ta) Standard Solution ........................................... 50

3156 Tellurium (Te) Standard Solution ........................................... 50

3157a Terbium (Tb) Standard Solution ............................................ 51

3158 Thallium (Tl) Standard Solution............................................. 51

3159 Thorium (Th) Standard Solution (Radioactive)......................... 51

3160a Thulium (Tm) Standard Solution ........................................... 51

3161a Tin (Sn) Standard Solution.................................................... 51

3162a Titanium (Ti) Standard Solution............................................. 51

3163 Tungsten (W) Standard Solution............................................ 51

3164 Uranium (U) Standard Solution (Radioactive).......................... 51

3165 Vanadium (V) Standard Solution (nominal 5 mg/g) ................. 51

3166a Ytterbium (Yb) Standard Solution .......................................... 51

3167a Yttrium (Y) Standard Solution................................................ 51

3168a Zinc (Zn) Standard Solution.................................................. 51

3169 Zirconium (Zr) Standard Solution .......................................... 51

3177 Mercuric Chloride Standard Solution .................................... 51

3180 Iodide Anion (I-) Standard Solution ........................................ 51

3181 Sulfate Anion Standard Solution ........................................... 51

3182 Chloride Anion Standard Solution.......................................... 51

3183 Fluoride Anion Standard Solution.......................................... 51

3184 Bromide Anion Standard Solution ......................................... 51

3185 Nitrate Anion Standard Solution............................................ 51

3186 Phosphate Anion Standard Solution ...................................... 51

3190 Aqueous Electrolytic Conductivity (25 μS/cm)...................... 148

3191 Aqueous Electrolytic Conductivity, (100 μS/cm) ................... 148

3192 Aqueous Electrolytic Conductivity (500 μS/cm).................... 148

3193 Aqueous Electrolytic Conductivity (1000 μS/cm).................. 148

3198 Aqueous Electrolytic Conductivity (5 μS/cm)........................ 148

3199 Aqueous Electrolytic Conductivity (15 μS/cm)...................... 148

3233 Fortified Breakfast Cereal............................................ 102, 105

3234 Soy Flour ................................................................... 102, 105

3246 Ginkgo biloba (leaves)................................................. 113, 114

3247 Ginkgo biloba Extract.................................................. 113, 114

3248 Ginkgo-Containing Tablets .......................................... 113, 114

3249 Ginkgo Dietary Supplement Suite ................................ 113, 114

3250 Serenoa repens (Fruit) ................................................ 113, 114

3251 Serenoa repens Extract............................................... 113, 114

SRM Descriptor Page #

3254 Camellia sinensis (Green Tea) Leaves .......... 102, 105, 113, 114

3255 Camellia sinensis (Green Tea) Extract........... 102, 105, 113, 114

3256 Green Tea-Containing Solid Oral Dosage Form ..... 106, 113, 114

3257 Catechin Calibration Solution................................. 97, 113, 114

3258 Bitter Orange (Fruit).................................................... 113, 114

3259 Bitter Orange Extract .................................................. 113, 114

3260 Bitter Orange-Containing Solid Oral Dosage Form......... 113, 114

3261 Bitter Orange Dietary Supplemental Suite..................... 113, 114

3266 Hypericin Calibration Solution................................ 97, 113, 114

3274 Botanical Oils Containing Omega-3 and Omega-6 FattyAcids.. 113, 114

3275 Omega-3 and Omega-6 Fatty Acids in Fish Oil............. 113, 114

3276 Carrot Extract in Oil .................................................... 102, 105

3278 Tocopherols in Edible Oils........................................... 102, 105

3280 Multivitamin/Multielement Tablets................................ 113, 114

3281 Cranberry (fruit).......................................... 102, 105, 113, 114

3282 Low-Calorie Cranberry Juice Cocktail .......... 102, 105, 113, 114

3283 Cranberry Extract ....................................................... 113, 114

3284 Cranberry-Containing Solid, Oral Dosage Form............. 113, 114

3285 Mixed Berry-Containing Solid Oral Dosage Form .......... 113, 114

3286 Organic Acids Calibration Standard.............................. 113, 114

3287 Blueberry (Fruit) ......................................................... 102, 105

3291 Bilberry Extract........................................................... 113, 114

3451 Low Temperature Seebeck Coefficient Standard .................. 158

3668 Mercury, Perchlorate, and, Iodide in

 Frozen Human Urine............................................. 58, 64, 65

3950 Vitamin B6 in Frozen Human Serum .......................... 58, 60, 62

4222C Carbon-14 Hexadecane Radioactivity Standard Solution....... 169

4226D Nickel-63 Radioactivity Standard Solution ........................... 169

4233E Cesium-137 Radioactivity Standard Solution ....................... 169

4239 Strontium-90 Radioactivity Standard Solution...................... 169

4251C Barium-133 Radioactivity Standard Solution........................ 169

4274 Holmium-166m Gamma-ray Emission Rate Standard Solution 169

4288B Technetium-99 Radioactivity Standard Solution ................... 169

4320A Curium-244 Radioactivity Standard Solution ...................... 169

4321C Natural Uranium Radioactivity Standard Solution.................. 169

4322C Americium-241 Radioactivity Standard Solution .................. 169

4323B Plutonium-238 Radioactivity Standard Solution ................... 169

4324B Uranium-232 Radioactivity Standard Solution...................... 169

4326 Polonium-209 Radioactivity Standard Solution .................... 169

4328C Thorium-229 Radioactivity Standard Solution...................... 169

4329 Curium-243 Radioactivity Standard Solution ....................... 169

4330C Plutonium-239 Radioactivity Standard Solution ................... 169

4332E Americium-243 Radioactivity Standard Solution .................. 169

4334I Plutonium-242 Radioactivity Standard Solution ................... 169

SRM Descriptor Page #

4337 Lead-210 Radioactivity Standard Solution........................... 169

4338A Plutonium-240 Radioactivity Standard Solution ................... 169

4339A Radium-228 Radioactivity Standard Solution....................... 169

4340B Plutonium-241 Radioactivity Standard Solution ................... 169

4341 Neptunium-237 Radioactivity Standard Solution .................. 169

4342A Thorium-230 Radioactivity Standard Solution ..................... 170

4350B River Sediment .......................................................... 173, 174

4351 Human Lung Powder.................................................. 173, 174

4352 Human Liver Powder .................................................. 173, 174

4353A Rocky Flats Soil Number 2 .......................................... 173, 174

4354 Lake Sediment Powder............................................... 173, 174

4355 Peruvian Soil Powder.................................................. 173, 174

4356 Ashed Bone ...................................................................... 173

4357 Ocean Sediment Powder............................................. 173, 174

4359 Seaweed Radionuclide Standard ................................. 173, 174

4361C Hydrogen-3 Water Radioactivity Standard ........................... 170

4370C Europium-152 Radioactivity Standard Solution ................... 170

4401H Iodine-131 Radioactivity Standard Solution ......................... 171

4401L Iodine-131 Radioactivity Standard Solution ......................... 171

4404H Thallium-201 Radioactivity Standard Solution...................... 171

4404L Thallium-201 Radioactivity Standard Solution..................... 171

4407H Iodine-125 Radioactivity Standard Solution ........................ 171

4407L Iodine-125 Radioactivity Standard Solution ........................ 171

4410H Technetium-99m Radioactivity Standard Solution ................ 171

4412H Molybdenum-99 Radioactivity Standard Solution ................. 171

4412L Molybdenum-99 Radioactivity Standard Solution ................. 171

4415H Xenon-133 Radioactivity Standard Gas............................... 171

4415L Xenon-133 Radioactivity Standard Gas............................... 171

4416H Gallium-67 Radioactivity Standard Solution ......................... 171

4416L Gallium-67 Radioactivity Standard Solution ......................... 171

4417H Indium-111 Radioactivity Standard Solution ........................ 171

4417L Indium-111 Radioactivity Standard Solution ........................ 171

4427H Yttrium-90 Radioactivity Standard Solution.......................... 171

4427L Yttrium-90 Radioactivity Standard Solution ......................... 171

4915F Cobalt-60 Radioactivity Standard Solution........................... 170

4919I Strontium-90 Radioactivity Standard Solution...................... 170

4926E Hydrogen-3 Water Radioactivity Standard ........................... 170

4927F Hydrogen-3 Water Radioactivity Standard ........................... 170

4929F Iron-55 Radioactivity Standard Solution .............................. 170

4943 Chlorine-36 Radioactivity Standard Solution........................ 170

4947C Hydrogen-3 Toluene Radioactivity Standard Solution............ 170

4949C Iodine-129 Radioactivity Standard Solution ......................... 170

4965 Radium-226 Radioactivity Standard Solution...................... 170

4966A Radium-226 Radioactivity Standard Solution....................... 170

SRM Descriptor Page #

4967A Radium-226 Radioactivity Standard Solution....................... 170

4969 Radium-226 Radioactivity Standard Solution....................... 170

4971 Radon-222 Emanation Standard ........................................ 172

4972 Radon-222 Emanation Standard ........................................ 172

4973 Radon-222 Emanation Standard ........................................ 172

4974 Radon-222 Emanation Standard ........................................ 172

4990C Oxalic Acid Powder............................................................ 172

5000 Overlay Wafer Standard ..................................................... 180

5001 Two-Dimensional Grid Photomask, Std................................ 180

8010 Sand for Sand Sieve Analysis............................................. 189

8011 Gold Nanoparticles, Nominal 10nm Diameter ......... 68, 188, 189

8012 Gold Nanoparticles, Nominal 30nm Diameter ......... 68, 188, 189

8013 Gold Nanoparticles, Nominal 60nm Diameter ......... 68, 188, 189

8040 Sodium Oxalate (Reductometric)........................................... 47

8090 SEM Magnification RM ...................................................... 178

8091 Scanning Electron Microscope Sharpness Standard............. 178

8095 Si1-xGex Films on Si ........................................................... 43

8107 Additives in Smokeless Powder.......................................... 100

8130 Coplanar Waveguide Calibration Set ................................... 176

8323 Yeast Protein Extract............................................................ 58

8327 Peptide Reference Material for Molecular Mass

 and Purity Measurements................................................ 58

8395 Tissue Engineering Reference, Scaffold ................. 68, 150, 152

8396 Tissue Engineering Reference, Scaffold ................. 68, 150, 152

8397 Tissue Engineering Reference, Scaffold ................. 68, 150, 152

8412 Corn Stalk (Zea mays)................................. 107, 108, 109, 110

8413 Corn Kernel (Zea mays) .............................. 107, 108, 109, 110

8414 Bovine Muscle Powder (Beef)...................................... 107, 108

8415 Whole Egg Powder..................................................... 107, 108

8418 Wheat Gluten............................................................. 107, 108

8420 Iron Electrolytic........................................................... 157, 176

8432 Corn Starch ............................................................... 107, 108

8433 Corn Bran .................................................................. 107, 108

8436 Durum Wheat Flour .................................................... 107, 108

8437 Hard Red Spring Wheat Flour ...................................... 107, 108

8438 Soft Winter Wheat Flour.............................................. 107, 108

8444 Cotinine in Freeze-Dried Human Urine .................................. 66

8445 Spray-Dried Whole Egg for Allergen Detection ..................... 106

8455 Pyrite Ore ......................................................................... 121

8456 Ultra High Molecular Weight Polyethylene............... 68, 150, 152

8457 Ultra High Molecular Weight Polyethylene............... 68, 150, 152

8458 Artificial Flaw for Eddy Current ........................................... 198

8466 Y-HCH (Lindane) ................................................................. 97

8467 4,4’-DDE ........................................................................... 97
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224 225

Numeric Index Numeric Index

SRM Descriptor Page #

8469 Pesticide, 4,4’-DDT ............................................................ 97

8480 Secondary Ferrite Number Standard - Low Range ............... 205

8481 Secondary Ferrite Number Standard - High Range............... 205

8491 Sugarcane Bagasse Whole Biomass Feedstock ................ 93, 94

8492 Eastern Cottonwood Whole Biomass Feedstock................ 93, 94

8493 Monterey Pine Whole Biomass Feedstock ........................ 93, 94

8494 Wheat Straw Whole Biomass Feedstock........................... 93, 94

8495 Northern Softwood ................................................. 93, 94, 205

8496 Eucalyptus Hardwood ............................................. 93, 94, 205

8504 Transformer Oil ................................................................... 99

8505 Vanadium in Crude Oil......................................................... 85

8506a Moisture in Transformer Oil .................................................. 90

8509 Moisture in Methanol, 93 mg/kg........................................... 90

8510 Moisture in Methanol, 325 mg/kg......................................... 90

8535a VSMOW2 Vienna Standard Mean, Ocean Water..................... 53

8536 Greenland Ice Sheet Precipitation......................................... 53

8537 Standard Light Antarctic Precipitation ................................... 53

8539 NBS 22-Oil ......................................................................... 53

8540 PEFI-Polyethylene Foil.......................................................... 53

8541 USGS24-Graphite................................................................ 53

8542 Sucrose ANU-Sucrose ......................................................... 53

8543 NBS18-Carbonatite ............................................................. 53

8544 NBS19-Limestone............................................................... 53

8545 LSVEC-Lithium Carbonate.................................................... 53

8546 NBS28-Silica Sand.............................................................. 53

8547 IAEAN1-Ammonium Sulfate ................................................. 53

8548 IAEAN2-Ammonium Sulfate ................................................. 53

8549 IAEA-NO3 Nitrogen and Oxygen Isotopes in Nitrate................ 53

8550 USGS25-Ammonium Sulfate ................................................ 53

8551 USGS26-Ammonium Sulfate ................................................ 53

8553 Soufre De Lacq-Elemental Sulfur.......................................... 53

8554 NZ1-Silver Sulfide ............................................................... 53

8555 NZ2-Silver Sulfide ............................................................... 53

8556 NBS123-Sphalerite ............................................................. 53

8557 NBS127-Barium Sulfate ...................................................... 53

8558 USGS32 Nitrogen and Oxygen Isotopes in Nitrate .................. 53

8559 Natural Gas, Coal Origin....................................................... 53

8561 Natural Gas, Biogenic .......................................................... 53

8562 CO2-Heavy, Paleomarine Origin............................................ 54

8563 CO2-Light, Petrochemical Origin .......................................... 54

8564 CO2-Biogenic, Modern Biomass Origin ................................. 54

8568 USGS34 Nitrogen and Oxygen Isotopes in Nitrate .................. 54

8569 USGS35 Nitrogen and Oxygen Isotopes in Nitrate .................. 54

SRM Descriptor Page #

8573 L-glutamic Acid USGS40

 (Light Carbon and Nitrogen Isotopes in L-glutamic Acid) ...... 54

8574 L-glutamic Acid USGS41

 (Heavy Carbon and Nitrogen Isotopes in L-glutamic Acid) ..... 54

8590 High Sulfur Gas Oil Feed.................................................... 142

8599 Henderson Molybdenite ....................................................... 52

8631a Medium Test Dust (MTD).................................................... 192

8632 Ultra Fine Test Dust ........................................................... 192

8642 FDA Saxitoxin Dihydrochloride Solution .......................... 58, 106

8680 Paint on Fiberboard ............................................................. 72

8704 Buffalo River Sediment ........................... 75, 76, 126, 127, 128

8785 Air Particulate Matter on Filter Media......................... 69, 75, 76

8786 Filter Blank for RM 8785........................................... 69, 75, 76

8820 Scanning Electron Microscope Scale Calibration Artifact 178, 180

8850 Zeolite Y ............................................................................. 78

8851 Zeolite A ............................................................................ 78

8852 Ammonium ZSM-5 Zeolite ................................................... 78

8983 Silicon Nitride Powder........................................................ 130

8988 Titanium Dioxide Powder - Particle Size Distribution............. 189

9951 Aluminum Wafer Drop-In Sample Holder (6 in) .................... 178

9952 Aluminum Wafer Drop-In Sample Holder (8 in) .................... 178

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Technical Catalog

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SRM

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January 2013

Environmental Forensics

Food & Agriculture Industrial Materials

Radioactivity

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High Purity Materials

Physical Properties

Industrial Materials