NIST Standard Reference Materials® 2018 Technical Catalog NIST SP 260-176
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NIST SP 260-176

January 2018

Editors: Regina R. Montgomery and 

Jennifer E. Benkstein

Office of Reference Materials

National Institute of Standards and Technology

Gaithersburg, MD 20899-2300

Steven J. Choquette, Director

U.S. Department of Commerce

Secretary of Commerce, Wilbur Ross

National Institute of Standards and Technology

Dr. Walter G. Copan, Director 

Under Secretary of Commerce for Standards and Technology 

United States Department of Commerce 

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Standard 

Reference 

Materials® 

Catalog

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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 260-176, 2017

106 pages (January 2018)

CODEN: NSPUE2

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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 the International System of Units (SI). 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

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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 https://www.nist.gov/srm. 

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Chemical Composition 

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

Plain Carbon Steels................................2

Low Alloy Steels.....................................2

Special Low Alloy Steels........................2

Low Alloy Steels.....................................3

High Alloy Steels....................................3

High Temperature Alloys .....................3

Stainless Steels (chip form)...................4

Stainless Steels (disk form)...................4

Tool Steels...............................................4

Specialty Steels .......................................4

Steelmaking Alloys................................4

Gases in Ferrous Metals........................5

Cast Steels, White Cast Irons, and 

Ductile Irons....................................5

Cast Irons................................................5

102. Nonferrous Metals ............ 7

Aluminum Base Alloys.........................8

 Cobalt Base Alloys................................8

Copper Base Alloys ...............................8

Copper Base Alloys ..............................8

Copper “Benchmark”............................9

Lead Base Alloys....................................9

Nickel Base Alloys .................................9

Tin Base Alloys ....................................10

Titanium Base Alloys..........................10

Zinc Base Alloys...................................10

Zirconium Base Alloys........................10

103. Microanalysis...................11

Metals....................................................12

Synthetic Glasses for 

Microanalysis.................................12

Semiconductor Thin Film for the 

Composition of Thin Films.........12

Nanomaterials: Composition.............12

104. High-Purity Materials......13

High Purity Metals .............................14

Stoichiometry.......................................14

Microchemistry....................................14

Spectrometry, Single Element 

Standard Solutions........................15

Anion Chromatography......................16

Stable Isotopic Materials.....................16

Light Stable Isotopic Materials...........17

105. Health & Clinical

Industrial Hygiene .............19

Clinical Laboratory Materials............20

Serum and Plasma Materials..............21

Ethanol Solutions ................................21

Toxic Substances in Urine ..................21

Drugs of Abuse.....................................22

Biomaterials..........................................22

Respirable Materials 

on Filter Media .............................22

Respirable Materials............................22

DNA Profiling and Nucleic Acid 

Materials.........................................23

Lead in Paint, Dust, and Soil..............24

106. Inorganics........................25

Metal (Inorganics) Constituents 

in Natural Matrices.......................26

Mercury in Activated Carbon............27

Environmental Matrices with 

Carbon Values...............................27

Used Auto Catalysts.............................27

Zeolites..................................................27

107. Primary Gas Mixtures......29

Primary Gas Mixtures ........................30

108. Fossil & Alternative Fuels..33

Alcohols and Ethers [Oxygenates] 

in Gasoline ....................................34

Metal Constituents in Fossil Fuels ....34

Sulfur, Mercury, and Chlorine 

in Fuels...........................................34

Moisture in Oils and Alcohols...........35

Fossil Fuel: Trace Elements.................35

Biofuels .................................................35

Biomass Feedstock ..............................35

109. Organics ..........................37

Organics ...............................................38

EPA: Organic Compounds Related to 

Water Analysis...............................39

Perfluorinated and Polyfluorinated 

Alkyl Substances (PFAS)..............39 

Crime Scene Investigations................39

110. Food & Agriculture ..........41

Foods and Beverages ..........................42

Food Contaminants and Allergens ...42

Agricultural Materials.........................42

Fertilizers..............................................42

Wheat Hardness...................................43

Dietary Supplement Materials...........43

111. Geological Materials 

& Ores ...............................45

Ores .......................................................46

Ore Bioleaching Substrate ..................46

Clays......................................................46

Rock and Minerals...............................46

Refractories...........................................46

Soils, Sediments, and Sludges.............47

112. Ceramics & Glasses..........49

Nitrides..................................................50

Cemented Carbides.............................50

Glasses...................................................50

Trace Elements.....................................50

113. Cement ............................51

Cements and Related Materials.........52

Portland Cement Clinkers 

(solid form) ...................................52

114. Engine Wear Materials.....53

Lubricating Oils ..................................54

115. Forensics..........................55

Ethanol Solutions ................................56

Drugs of Abuse.....................................56

DNA Profiling and Nucleic 

Acid Materials ...............................56

Crime Scene Investigations................56

Physical Properties

201. Ion Activity......................57

pH Calibration .....................................58

Biological Buffer Systems ...................58

pD Calibration .....................................58

Ion-Selective Electrode Calibration .....58

202. Polymeric Properties .......59

Polymers................................................60 

Melt Flow Rate .....................................60

Viscosity................................................60

Biomaterials .........................................60

203. Thermodynamic 

Properties ..........................61

Combustion Calorimetry ...................62

Solution Calorimetry ..........................62

Differential Scanning Calorimetry and 

Differential Thermal Analysis.....62

Enthalpy and Temperature of Fusion...62 

Enthalpy and Heat Capacity ..............62

Thermal Analysis Purity Set ..............62

Defining Fixed Point, 

International Temperature 

Scale of 1990, ITS-90....................62

Reference Points...................................63

Freezing Point, Melting Point, and 

Triple Point Cells ..........................63

Thermocouple Materials ....................63

Thermal Conductivity of Iron, Fibrous 

Glass, and Polystyrene .................63

Thermal Expansion of Glass...............63

Table of Contents

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Thermal Resistance Properties of 

Fibrous Glass and Fumed Silica 

Board ..............................................63

Thermoelectric Materials....................63

204. Optical Properties ...........65

Molecular Absorption ........................66

Optical Properties ...............................66

Fluorescence and Raman 

Spectroscopy .................................66

Infrared Reflectance (solid form)......66

Optical Rotation (powder form)........66

Photography (chart form) ..................66

205. Radioactivity ...................67

Radiation Dosimetry...........................68

Radioactive Solutions .........................68

Radiopharmaceuticals ........................69

Carbon-14 Dating................................70

Radioactive Natural Matrix 

Materials.........................................70

206. Electrical Properties ........71

Electrical Resistivity and Conductivity 

of Iron ............................................72

Electrical Resistivity and Conductivity 

of Silicon ........................................72

Superconducting Critical Current.....72

207. Metrology ........................73

Scanning Electron 

Microscope (SEM) .......................74

Depth Profiling ....................................74

Optoelectronics....................................74

Nonmagnetic Coating Thickness ......75

Microscale Dimensional 

Measurement Standards ..............75

208. Liquids & Glasses.............77

Chemical Resistance [Durability] of 

Glass ...............................................78

Electrical Properties of Dielectrics ...78

Viscosity of Glass ................................78

Glass Liquidus Temperature ..............78

Viscosity Fixpoints ..............................78

Relative Stress Optical Coefficient ....78

Density ..................................................78

209. X-Ray Diffraction ............79

X-Ray Diffraction ................................80

Engineering Materials

301. Sizing...............................81

Particle Size ..........................................82

Cement and Coal Fly Ash Fineness.....83

Electrophoretic Mobility, E ................83

Surface Area of Powders and 

Mercury Porosimetry Standards ....83

Particle Count Materials.....................83

302. Surface Finish ..................85

Microindentation Hardness...............86

Abrasive Wear......................................86

Surface Roughness ..............................86

Rockwell Hardness..............................86

305. Fire Research ...................87

Flooring Radiant Panel .......................88

Standard Cigarettes for Ignition 

Strength and Ignition Resistance 

Testing ...........................................88

308. Nanomaterials .................89

Nanomaterials......................................90

309. Miscellaneous Performance 

Engineering Materials........91

Impact Standards: Charpy V-Notch 

and Izod Impact Specimens ........92

Tape Adhesion Testing........................93

Bleached Kraft Pulps...........................93

Healthcare Equipment Standards......93

Fracture Toughness of Ceramics.......93

Magnetic Moment ...............................94

Standard Bullet and Cartridge Case ....94

Microelectromechanical Systems 

(MEMS) .........................................94

Table of Contents

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Standard Reference Materials

for Chemical Composition 101 Ferrous Metals

1

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Chemical Composition 101 ■ Ferrous Metals

2

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Plain Carbon Steels 

(chip form) 

SRM Description

Unit of 

Issue

8k Bessemer Steel (Simulated), 0.1 % Carbon 150 g

12h Basic Open-Hearth Steel, 0.4% Carbon 150 g

13g 0.6% Carbon Steel 150 g

14g Carbon Steel (AISI 1078) 150 g

16f Basic Open-Hearth Steel, 1% Carbon 

(chip form)

150 g

19h Basic Electric Steel, 0.2% Carbon 150 g

20g AISI 1045 Steel 150 g

152a Basic Open-Hearth Steel 0.5% Carbon 

(Tin Bearing)

150 g

178 0.4C Basic Oxygen Furnace Steel 150 g

368 Carbon Steel (AISI 1211) 150 g

See Table 101.1 on the website for more information.

Special Low Alloy Steels 

(chip and pin forms)

SRM Description

Unit of 

Issue

361 AISI 4340 Steel (chip form) 150 g

363 Chromium-Vanadium Steel (Modified) 150 g

364 LA Steel, High C (Modified) 150 g

2159 Low-Alloy Steel (pin form) 200 g

2160 Low-Alloy Steel (pin form) 200 g

2165 Low Alloy Steel 150 g

2166 Low Alloy Steel 150 g

2167 Low Alloy Steel 150 g

2168 High-Purity Iron (chip form) 150 g

See Table 101.3 on the website for more information.

Low Alloy Steels 

(chip form) 

SRM Description

Unit of 

Issue

30f Cr-V Steel (SAE 6150) 150 g

32e Carbon Low Alloy Steel (SAE 3140) 

(chip form)

50 g

33e Nickel Steel 150 g

36b Chromium-Molybdenum Steel 150 g

72g Low Alloy Steel (AISI 4130) 150 g

100b Manganese Steel 150 g

125b LA Steel, High Silicon 100 g

129c LA Steel, High Sulfur (SAE 112) 150 g

131h Refined Cast Iron 100 g

139b Chromium-Nickel-Molybdenum Steel 150 g

155 Chromium-Tungsten Steel 150 g

163 Chromium Steel 100 g

179 LA Steel, High Silicon 150 g

291 Cr-Mo Steel (ASTM A-213) 150 g

293 Cr-Ni-Mo (AISI 8620) 150 g

2171 LA Steel (HSLA 100) 150 g

See Table 101.2 on the website for more information.

These SRMs are for checking optical emission and X-ray fluorescence spectrometric methods and for other methods of chemical 

analysis. They consist of steel alloys selected to provide a wide range of analytical values for elements. They are furnished as chips 

(small metal turnings), rods, disks, pins or powders from selected portions of commercial ingots. A “C” preceding the SRM number 

indicates a chill cast sample. Certificates are available on the website with information regarding specific alloy composition.

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101 ■ Ferrous Metals Chemical Composition

Low Alloy Steels 

(disk and rod forms)

SRM Description

Unit of 

Issue

663 Chromium-Vanadium Steel (Modified) 5 rods

665 Electrolytic Iron 5 rods

1134 LA Steel, High Silicon disk

1135 LA Steel, High Silicon disk

1218 LA Steel, High Silicon disk

1224 LA Steel, Carbon (AISI 1078) disk

1225 LA Steel (AISI 4130) disk

1226 LA Steel disk

1227 LA Steel, Basic Open Hearth, 1% C disk

1228 LA Steel, 0.1% C disk

1264a LA Steel, High Carbon (Modified) disk

1265a Electrolytic Iron disk

1269 Line Pipe (AISI 1526 (Modified)) disk

1270 LA Steel, Cr-Mo (A336) (F-22) disk

1271 LA Steel (HSLA-100) disk

1286 Low Alloy Steel (HY 80) disk

1761a Low Alloy Steel disk

1762a Low Alloy Steel disk

1763a Low Alloy Steel disk

1764a Low Alloy Steel disk

1765 Low Alloy Steel disk

1766 Low Alloy Steel disk

1767 Low Alloy Steel disk

1768 High-Purity Iron disk

C1285 LA Steel (A242) (Modified) disk

See Table 101.8 on the website for more information.

High Alloy Steels 

(chip form) 

SRM Description

Unit of 

Issue

126c High-Nickel Steel 

(Nominal Mass Fraction 36 % Ni) 

(chip form)

150 g

344 15 Chromium-7 Nickel Steel 

(Mo Precipitation Hardening)

150 g

345b Fe-Cr-Ni Alloy UNS J92180 (chip form) 150 g

346a Valve Steel 150 g

862 High-Temperature Alloy L 605 (chip form) 100 g

868 High-Temperature Alloy (Fe-Ni-Co) 

(chip form)

100 g

See Table 101.4 on the website for more information.

High Temperature Alloys 

(chip and disk forms)

SRM Description

Unit of 

Issue

866 Incoloy® 800 (chip form) 100 g

867 Ni-Fe-Cr Alloy UNS N08825 (chip form) 100 g

1230 High-Temperature Alloy A286 (disk form) disk

1246 Incoloy® 800 (disk form) disk

1247 Ni-Fe-Cr Alloy UNS N08825 (disk form) disk

1250 High-Temperature Alloy Fe-Ni-Co disk

C2400 Fe-Cr-Ni Alloy UNS J92180 (disk form) disk

C2401 HA Steel (ACI-C-4M-Cu) disk

See Table 101.9 on the website for more information.

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Stainless Steels 

(chip form) 

SRM Description

Unit of 

Issue

101g 18 Cr-10 Ni Steel (AISI 304L) (powder form) 100 g

123c Stainless Steel, Cr-Ni-Nb (AISI 348) 150 g

133b Chromium-Molybdenum Steel 150 g

160b Stainless Steel 

(Cr 18-Ni 12-Mo 2) (AISI 316)

150 g

166c Stainless Steel, Low-Carbon (AISI 316L) 100 g

339 17 Chromium-9 Nickel-0.2 Selenium Steel 150 g

343a Stainless Steel (AISI 431) 150 g

893 Stainless Steel (SAE 405) 150 g

895 Stainless Steel (SAE 201) 150 g

See Table 101.6 on the website for more information.

Stainless Steels 

(disk form)

SRM Description

Unit of 

Issue

1155a Stainless Steel (Cr 18 Ni 12, Mo 2) disk

1171 Stainless Steel Cr 17-Ni 11-Ti 0.3 

(AISI 321)

disk

1172 Stainless Steel Cr 17-Ni 11-Nb 0.6 

(AISI 348)

disk

1219 Stainless Steel Cr16 - Ni2 (AISI 431) disk

1223 Chromium Steel disk

1295 Stainless Steel (SAE 405) disk

1297 Stainless Steel (SAE 201) disk

C1151a Stainless Steel 23Cr-7Ni disk

C1152a Stainless Steel 18Cr-11Ni disk

C1153a Stainless Steel 17Cr-9Ni disk

C1154a Stainless Steel 19Cr-13Ni disk

C1296 Stainless Steel disk

See Table 101.10 on the website for more information.

Tool Steels 

(chip form)

SRM Description

Unit of 

Issue

50c Tungsten-Chromium-Vanadium Steel 150 g

132b Tool Steel (AISI M2) 150 g

134a Molybdenum-Tungsten-ChromiumVanadium Steel150 g

2172 S-7 Tool Steel 150 g

See Table 101.7 on the website for more information.

Specialty Steels 

(disk form)

SRM Description

Unit of 

Issue

1157 Tool Steel (AISI M2) disk

1158 High-Nickel Steel 

(Nominal Mass Fraction 36 % Ni) 

disk

1772 Tool Steel (S-7) disk

See Table 101.11 on the website for more information.

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).

SRM Description

Unit of 

Issue

57b Silicon Metal 40 g

58a Ferrosilicon (73 % Si Regular Grade) 75 g

59a Ferrosilicon 50 g

64c Ferrochromium, High Carbon 100 g

68c High-Carbon Ferromanganese 100 g

90 Ferrophosphorus 75 g

195 Ferrosilicon (75 % Si-High Purity Grade) 75 g

196 Ferrochromium, (Low-Carbon) 100 g

689 Ferrochromium Silicon 100 g

See Table 101.12 on the website for more information.

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101 ■ Ferrous Metals Chemical Composition

Gases in Ferrous Metals 

(rod and disk forms)

These SRMs are for determining oxygen and nitrogen by 

vacuum fusion, inert gas fusion, and neutron activation 

methods. 

SRM Description

Unit of 

Issue

1089† Steels, Set (consists of SRMs 1095, 1096, 

1097, 1098 and 1099)

5 rods

1090 Oxygen in Ingot Iron rod

1091a Oxygen in Stainless Steel (AISI 431) rod

1093 Oxygen in Valve Steel rod

1094 Oxygen in Maraging Steel rod

1754 Low-Alloy Steel, AISI 4320 rod

1755 Nitrogen in Low Alloy Steel disk

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

See Table 101.5 on the website for more information.

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.

SRM Description

Unit of 

Issue

1138a Cast Steel Standard block

1139a Cast Steel Standard block

1173 Ni-Cr-Mo-V Steel disk

C1137a White Cast Iron disk

C1145a White Cast Iron disk

C1173 Cast Steel 3 disk

C1290 High-Alloy White Cast Iron (HC-250+V) disk

C1291 High-Alloy White Cast Iron 

(Ni-Hard, Type I)

disk

C1292 High-Alloy White Cast Iron I 

(Ni-Hard, Type IV)

disk

C2424 Ductile Iron C disk

See Table 101.14 on the website for more information.

Cast Irons 

(chip form) 

SRM Description

Unit of 

Issue

4l Cast Iron 150 g

5m Cast Iron 150 g

6g Cast Iron 150 g

82b Nickel-Chromium Cast Iron 150 g

107c Cast Iron (Ni-Cr-Mo) 150 g

115a Copper-Nickel-Chromium Cast Iron 150 g

122i Cast Iron 150 g

334 Gray Cast Iron 150 g

341 Ductile Cast Iron 150 g

342a Nodular Cast Iron 150 g

892 High-Alloy White Cast Iron 

(Ni-Hard, Type IV)

150 g

See Table 101.13 on the website for more information.

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Chemical Composition 101 ■ Ferrous Metals

6

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Standard Reference Materials

for Chemical Composition 102 Nonferrous Metals

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Chemical Composition 102 ■ Nonferrous Metals

Aluminum Base Alloys 

(chip and disk forms) 

These SRMs are intended for analyses of aluminum alloys 

by chemical and instrumental methods. SRMs 1710 

through 1713 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. 

SRM Description

Unit of 

Issue

87a Silicon-Aluminum Alloy (chip form) 75 g

853a Aluminum Alloy 3004 (chip form) 40 g

854a Aluminum Alloy 5182 (chip form) 40 g

855a Aluminum Casting Alloy 356 (chip form) 30 g

856a Aluminum Casting Alloy 380 (chip form) 30 g

858 Aluminum Alloy 6011 (chip form) 35 g

1240c Aluminum Alloy 3004 disk

1241c Aluminum Alloy 5182 disk

1255b Aluminum Alloy 356 disk

1256b Aluminum Alloy 380 disk

1258-I Aluminum Alloy 6011 disk

1259 Aluminum Alloy 7075 disk

1710 Aluminum Alloy 3004 disk

1711 Aluminum Alloy 3004 disk

1713 Aluminum Alloy 5182 disk

2426 55 % Aluminum-Zinc Alloy 40 g

See Table 102.1 on the website for more information.

 Cobalt Base Alloys 

(chip and disk forms)

SRM Description

Unit of 

Issue

862 High-Temperature Alloy L 605 (chip form) 100 g

1242 High Temperature Alloy L 605 disk

1775 Refractory Alloy MP-35-N disk

2175 Refractory Alloy MP-35-N (chip form) 150 g

See Table 102.2 on the website for more information.

Copper Base Alloys (chip and rod forms) 

SRM Description

Unit of 

Issue

158a Silicon Bronze (chip form) 150 g

458 Beryllium-Copper (17510) (chip form) 50 g

459 Beryllium-Copper (17200) (chip form) 50 g

460 Beryllium-Copper Alloy (chip form) 50 g

871 Phosphor Bronze (CDA 521) (chip form) 100 g

872 Phosphor Bronze (CDA 544) (chip form) 100 g

874 Cupro-Nickel, 10 % (CDA 706) 

“HIGH-PURITY” (chip form)

100 g

875 Cupro-76t5Nickel, 10 % (CDA 706) 

“DOPED” (chip form)

100 g

880 Nickel Silver (CDA 770) (chip form) 100 g

1034 Unalloyed Copper rod

1035 Leaded-Tin Bronze Alloy (chip form) 50 g

See Table 102.3 on the website for more information.

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. 

SRM Description

Unit of 

Issue

1107 Naval Brass UNS 46400 disk

1110 Red Brass B disk

1111 Red Brass Standard disk

1112 Gilding Metal disk

1113 Gilding Metal disk

1114 Gilding Metal disk

1115 Commercial Bronze Standard for Optical

Emission and X-ray Spectroscopic Analysis

disk

1116 Commercial Bronze Standard for Optical 

Emission and X-ray Spectroscopic Analysis

disk

1117 Commercial Bronze Standard for Optical 

Emission and X-ray Spectroscopic Analysis

disk

1124 Free Cutting Brass (UNS C36000) disk

1276a Cupro-Nickel (CDA 715) disk

C1114 Gilding Metal C (block) block

C1115 Commercial Bronze A (block) block

C1117 Commercial Bronze C (block) block

See Table 102.4 on the website for more information.

These SRMs are for checking optical emission and X-ray fluorescence spectrometric methods and for other methods of chemical 

analysis. They consist of alloys selected to provide a wide range of analytical values for elements. They are furnished as chips (small 

metal turnings), rods, disks, pins or powders from selected portions of commercial ingots. A “C” preceding the SRM number 

indicates a chill cast sample. Certificates are available on the website with information regarding specific alloy composition.

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102 ■ Nonferrous Metals Chemical Composition

Copper “Benchmark” 

(block, chip and rod forms)

SRMs with a “C” prefix are chill-cast blocks approximately 

32 mm square and 19 mm thick.

SRM Description

Unit of 

Issue

399 Unalloyed Copper - Cu VI (chip form) 50 g

400 Unalloyed Copper - Cu VII (chip form) 50 g

454 Unalloyed Copper XI (chips) 35 g

457 Unalloyed Copper IV (solid) rod

494 Unalloyed Copper I (solid) rod

495 Unalloyed Copper II (solid) rod

498 Unalloyed Copper V (solid) rod

499 Unalloyed Copper VI (solid) rod

500 Unalloyed Copper - Cu VII (solid) rod

C1251a Phosphorus Deoxidized Copper - Cu VIII block

C1252a Phosphorus Deoxidized Copper - Cu IX block

C1253a Phosphorus Deoxidized Copper - Cu X block

See Table 102.5 on the website for more information.

Lead-Base Alloys 

(disk and powder forms)

SRMs in the form of disks are approximately 50 mm in 

diameter and 16 mm thick.  They are intended for use with 

optical emission spectrometric methods of analysis.

SRM Description

Unit of 

Issue

53e Lead-Base Bearing Metal (84Pb-10Sb-6Sn) 150 g

127b Solder (40Sn—60Pb) 150 g

1129 Solder (63Sn—37Pb) 200 g

1131 Solder (40Sn—60Pb) disk

1132 Lead-Base Bearing Metal (84Pb-10Sb-6Sn) disk

C2415a Battery Lead (UNS 52770) disk

C2416 Bullet Lead disk

C2417 Lead-Base Alloy disk

C2418 High-Purity Lead disk

See Table 102.10 on the website for more information.

Nickel Base Alloys 

(chip and disk forms)

SRM Description

Unit of 

Issue

349a Waspaloy 150 g

861 Nickel-based Superalloy PWA 1484 

(chip form)

50 g

864 Nickel Alloy UNS N06600 (chip form) 100 g

865 Inconel 625 (chip form) 150 g

882 Nickel-Copper Alloy (65Ni-31Cu-3Al)

(ship form)

100 g

897 Tracealloy A (chip form) 35 g

899 Tracealloy C (chip form) 35 g

1159 Electronic and Magnetic Alloy Standard disk

1160 Elec/Mag Ni-Mo-Fe disk

1243 Ni-Cr-Co Alloy UNS N07001 (disk form) disk

1244 Nickel Alloy UNS N06600 disk

1249 Ni-Cr-Fe-Nb-Mo Alloy UNS N077178 

(disk form)

disk

1775 Refractory Alloy MP-35-N disk

2175 Refractory Alloy MP-35-N (chip form) 150 g

C1248 Nickel-Copper Alloy disk

C2402 Hastelloy 7C disk

See Table 102.12 on the website for more information.

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Chemical Composition 102 ■ Nonferrous Metals

Tin Base Alloys

SRM Description

Unit of 

Issue

54d Bearing Metal (Tin Base) 75 g

1727 Anode Tin block

1728 Tin Alloy (Sn-3Cu-0.5Ag) disk

1729 Tin Alloy (97Sn-3Pb) disk

See Table 102.15 on the website for more information.

Titanium Base Alloys 

(chip and disk forms) 

SRM Description

Unit of 

Issue

173c Titanium Alloy UNS R56400 (chip form) 50 g

641 Spectroscopic TitaniumBase Standards Titanium Alloy, 8 Mn (A)disk

642 Spectroscopic Titanium-Base Standards 

Titanium Alloy, 8 Mn (B)

disk

643 Spectroscopic Titanium-Base Standards 

Titanium Alloy, 8 Mn (C)

disk

647 Titanium Alloy, Al-Mo-Sn-Zr (chip form) 50 g

648 Titanium-Base Alloy 5Al-2Sn-2Zr-4Cr-4Mo

(chip form)

50 g

649 Titanium-Base Alloy (15V-3Al-3Cr-3Sn) 

(chip form)

50 g

654b Titanium Alloy, Al-V disk

1128 Titanium -Base Alloy (15V-3Al-3Cr-3Sn) disk

2061 TiAl(NbW) Alloy for Microanalysis cube

2062 Titanium Alloy,  Al-Nb-W disk

2431 Titanium Base Alloy (chip form) 50 g

2432 Titanium-Base Alloy 10V-2Fe-3Al 

(chip form)

50 g

2433 Titanium-Base Alloy 8Al-1Mo-1V 

(chip form)

50 g

2452 Hydrogen In Titanium Alloy (chip form) 10 g

2453a Hydrogen In Titanium Alloy 

(Nominal Mass Fraction 125 mg/kg H) 

(chip form)

10 g

2454 Hydrogen In Titanium Alloy (chip form) 10 g

See Table 102.16 on the website for more information.

Zinc Base Alloys 

(block, chip and disk forms)

SRM 1738 through 1742 and SRM 2139 are specially 

prepared alloys primarily intended for use with 

spectrometric methods of analysis.

SRM Description

Unit of 

Issue

94c Zinc-Base Alloy (Die Casting) (chip form) 150 g

625 Spectrographic Zinc-Base Die-Casting 

Alloy A

block

626 Spectrographic Zinc-Base Die-Casting 

Alloy B

block

627 Spectrographic Zinc-Base Die-Casting 

Alloy C

block

628 Spectrographic Zinc-Base Die-Casting 

Alloy D

block

629 Spectrographic Zinc-Base Die-Casting 

Alloy E

block

630 Spectrographic Zinc-Base Die-Casting 

Alloy F

block

631 Spectrographic Zinc Spelter (Modified) block

1738 Zinc-Aluminum Alloy disk

1739 Zinc-Aluminum Alloy disk

1740 Zinc-Aluminum Alloy disk

1741 Zinc-Aluminum Alloy disk

1742 Zinc-Aluminum Alloy disk

2139 Zinc-Aluminum Alloy 100 g

2426 55 % Aluminum-Zinc Alloy (chip form) 40 g

See Table 102.17 on the website for more information.

Zirconium Base Alloys 

(chip form)

SRM Description

Unit of 

Issue

360b Zirconium (Sn-Fe-Cr) Alloy 100 g

See Table 102.18 on the website for more information.

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Standard Reference Materials

for Chemical Composition 103 Microanalysis

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Chemical Composition 103 ■ Microanalysis

Metals 

(wire, disk and cube forms) 

SRM Description

Unit of 

Issue

480 Tungsten 20 % - Molybdenum Alloy 

Electron Microprobe Standard

disk

481 Gold-Silver Wires for Microprobe Analysis set (6)

482 Gold-Copper Wires for Microprobe Analysis set (6)

2061 TiAl(NbW) Alloy for Microanalysis cube

See Table 103.1 on the website for more information.

Synthetic Glasses for Microanalysis 

(rod and microsphere forms)

The glass SRM listed below is suitable for microanalysis, 

such as electron probe microanalysis (EMPA) secondary ion 

mass spectrometry (SIMS) and other methods that require 

high homogeneity.

SRM Description

Unit of 

Issue

2066 K-411 Glass Microspheres 50 mg

See Table 103.2 on the website for more information.

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.

SRM Description

Unit of 

Issue

2841 Semiconductor Thin Film: 

AlxGa1-xAs Epitaxial Layers 

(Al mole fraction x near 0.20)

disk

2842 Semiconductor Thin Film: 

AlxGa1-xAs Epitaxial Layers 

(Al mole fraction x near 0.30)

disk

8095 Si1-xGex Films on Si 2 wafers, 

1 each level

See Table 103.4 on the website for more information.

Nanomaterials: Composition

SRM Description

Unit of 

Issue

2483 Single-Wall Carbon Nanotubes (Raw Soot) 250 mg

See Table 103.5 on the website for more information.

Scanning Electron Microscopy Image of SRM 2483

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Standard Reference Materials

for Chemical Composition 104 High-Purity Materials

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Chemical Composition 104 ■ High-Purity Materials

High Purity Metals (solid forms) 

These SRMs are for determining impurity elements in high 

purity metals.

SRM Description

Unit of 

Issue

682 High-Purity Zinc block

683 Zinc Metal block

685r High-Purity Gold (rod) 15g

728 Intermediate-Purity Zinc (pellet) 450 g

885 Refined Copper (pin) 200 g

See Table 104.1 on the website for more information.

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:

A 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.

SRM Description

Unit of 

Issue

17f Sucrose Optical Rotation 60 g

84L Potassium Hydrogen Phthalate 60 g

136f Potassium Dichromate, 

(Oxidimetric Standard)

60 g

154c Titanium Dioxide 90 g

350c Benzoic Acid (Acidimetric) 30 g

351a Sodium Carbonate 50 g

723e Tris Acidimetric 50 g

917c D-Glucose (Dextrose) 50 g

973 Boric Acid Acidimetric Standard 100 g

999c Potassium Chloride Primary Standard

(Dried at 500 ° C) 

30 g

8040 Sodium Oxalate (Na2

C2O4) 

Reductometric Standard

60 g

See Table 104.3 on the website for more information.

Microchemistry (powder form)

SRM Description

Unit of 

Issue

141d Acetanilide 2 g

143d Cystine 2 g

148 Nicotinic Acid 2 g

2141 Urea 2 g

2143 p-Fluorobenzoic Acid 2 g

2144 m-Chlorobenzoic Acid 2 g

See Table 104.4 on the website for more information.

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104 ■ High-Purity Materials Chemical Composition

Spectrometry, Single Element Standard 

Solutions

These SRMs are intended as standard solutions for 

calibrating instruments 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. Each 

unit is provided in either a single high density polyethylene 

bottle or in 5 x 10 mL borosilicate glass ampoules. 

SRM Description

Unit of 

Issue

3101a Aluminum (Al) Standard Solution 5 x 10 mL

3102a Antimony (Sb) Standard Solution 50 mL

3103a Arsenic (As) Standard Solution 5 x 10 mL

3104a Barium (Ba) Standard Solution 50 mL

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

3106 Bismuth (Bi) Standard Solution 5 x 10 mL

3107 Boron (B) Standard Solution 50 mL

3108 Cadmium (Cd) Standard Solution 5 x 10 mL

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

3110 Cerium (Ce) Standard Solution 5 x 10 mL

3111a Cesium (Cs) Standard Solution 5 x 10 mL

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

3113 Cobalt (Co) Standard Solution 5 x 10 mL

3114 Copper (Cu) Standard Solution 50 mL

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

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

3117a Europium (Eu) Standard Solution 5 x 10 mL

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

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

3120a Germanium (Ge) Standard Solution 50 mL

3121 Gold (Au) Standard Solution 5 x 10 mL

3122 Hafnium (Hf) Standard Solution 50 mL

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

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

3126a Iron (Fe) Standard Solution 5 x 10 mL

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

3128 Lead (Pb) Standard Solution 5 x 10 mL

3129a Lithium (Li) Standard Solution 5 x 10 mL

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

3131a Magnesium (Mg) Standard Solution 5 x 10 mL

SRM Description

Unit of 

Issue

3132 Manganese (Mn) Standard Solution 5 x 10 mL

3133 Mercury (Hg) Standard Solution 5 x 10 mL

3134 Molybdenum (Mo) Standard Solution 5 x 10 mL

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

3136 Nickel (Ni) Standard Solution 5 x 10 mL

3137 Niobium (Nb) Standard Solution 50 mL

3138 Palladium (Pd) Standard Solution 5 x 10 mL

3139a Phosphorus (P)  Standard Solution 5 x 10 mL

3140 Platinum (Pt) Standard Solution 5 x 10 mL

3141a Potassium (K) Standard Solution 5 x 10 mL

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

3143 Rhenium (Re) Standard Solution 5 x 10 mL

3144 Rhodium (Rh) Standard Solution 5 x 10 mL

3145a Rubidium (Rb) Standard Solution 5 x 10 mL

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

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

3149 Selenium (Se) Standard Solution 5 x 10 mL

3150 Silicon (Si) Standard Solution 50 mL

3151 Silver (Ag) Standard Solution 5 x 10 mL

3152a Sodium (Na) Standard Solution 50 mL

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

3154 Sulfur (S) Standard Solution 5 x 10 mL

3155 Tantalum (Ta) Standard Solution 50 mL

3156 Tellurium (Te) Standard Solution 5 x 10 mL

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

3158 Thallium (Tl) Standard Solution 5 x 10 mL

3159 Thorium (Th) Standard Solution 50 mL

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

3161a Tin (Sn) Standard Solution 50 mL

3162a Titanium (Ti) Standard Solution 50 mL

3163 Tungsten (W) Standard Solution 50 mL

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

3165 Vanadium (V) Standard Solution  5 x 10 mL

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

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

3168a Zinc (Zn) Standard Solution 5 x 10 mL

3169 Zirconium (Zr) Standard Solution 50 mL

3177 Mercuric Chloride Standard Solution 5 x 10 mL

See Table 104.5 on the website for more information.

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Chemical Composition 104 ■ High-Purity Materials

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. 

SRM Description

Unit of 

Issue

3180 Iodide Anion (I-

) Standard Solution 5 x 5 mL

3181 Sulfate Anion (SO42-) Standard Solution 5 x 10 mL

3182 Chloride Anion (Cl-

) Standard Solution 5 x 10 mL

3183 Fluoride Anion (F-

) Standard Solution 50 mL

3184 Bromide Anion (Br -) Standard Solution 5 x 10 mL

3185 Nitrate Anion (NO3-

) Standard Solution 5 x 10 mL

3186 Phosphate Anion (PO4

3-) Standard Solution 5 x 10 mL

See Table 104.8 on the website for more information.

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 Light Stable Isotopic Materials 

SRM Description

Unit of 

Issue

951a Boric Acid Isotopic Standard 10 g

952 Enriched Boric Acid Standard  0.25 g

973 Boric Acid Acidimetric Standard 100 g

975a Isotopic Standard for Chlorine 0.25 g

977 Isotopic Standard for Bromine 0.25 g

978a Assay-Isotopic Standard for Silver 0.25 g

979 Chromium Isotopic Standard 0.25 g

980 Isotopic Standard for Magnesium 0.25 g

981 Common Lead Isotopic Standard (wire) 1 g

982 Equal-Atom Lead Isotopic Standard (wire) 1 g

983 Radiogenic Lead Isotopic Standard (wire) 1 g

984 Rubidium Chloride 0.25 g

986 Isotopic Standard for Nickel 0.5 g

987 Strontium Carbonate Isotopic Standard 1 g

994 Isotopic Standard for Gallium 0.25 g

997 Thallium Isotopic Standard 0.25 g

8599 Henderson Molybdenite 10 g

See Table 104.9 on the website for more information.

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104 ■ High-Purity Materials Chemical Composition

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.

SRM Description

Unit of 

Issue

8529 IAEA-S-3 (Sulfur Isotopes in Silver Sulfide) 1 x 0.5 g

8535a VSMOW2 Vienna Standard Mean Ocean Water 

(Hydrogen and Oxyen Isotopes in Water)

20 mL

8536 GISP-Water 20 mL

8537 SLAP-Water Light Stable Isotopic Standard 20 mL

8539 NBS22 Oil 

(Carbon and Hydrogen Isotopes in Oil)

1 mL

8540 IAEA-CH-7 

(Carbon and Hydrogen Isotopes 

in Polyethylene Foil)

3.5 g

8541 USGS24 Graphite 

(Carbon Isotopes in Graphite)

0.8 g

8542 IAEA-CH-6 Sucrose 

(Carbon Isotopes in Sucrose)

1 g

8543 NBS 18 (Carbon Isotopes in Carbonatite) 0.4 g

8544 NBS 19 Limestone 

(Carbon and Oxygen Isotopes in Carbonate)

0.4 g

8545 LSVEC (Carbon, Oxygen, and Lithium 

Isotopes in Lithium Carbonate)

0.4 g

8546 NBS28 

(Silicon and Oxygen Isotopes in Silica Sand) 

0.4 g

8547 IAEA-N-1 

(Nitrogen Isotopes in Ammonium Sulfate)

0.4 g

8548 IAEA-N-2 

(Nitrogen Isotopes in Ammonium Sulfate)

0.4 g

8550 USGS25 

(Nitrogen Isotopes in Ammonium Sulfate)

0.5 g

SRM Description

Unit of 

Issue

8551 USGS26 

(Nitrogen Isotopes in Ammonium Sulfate)

0.5 g

8552 NSVEC 

(Nitrogen Isotopes in Gaseous Nitrogen)

300 μmol

8553 IAEA-S-4 (Soufre De Lacq)

(Sulfur Isotopes in Elemental Sulfur) 

0.5 g

8554 IAEA-S-1 (Sulfur Isotopes in Silver Sulfide) 0.5 g

8555 IAEA-S-2 (Sulfur Isotopes in Silver Sulfide) 0.5 g

8556 NBS123 (Sulfur Isotopes in Sphalerite) 1.5 g

8557 NBS127 

(Sulfur and Oxygen Isotopes in Barium Sulfate)

0.5 g

8558 USGS32 

(Nitrogen and Oxygen Isotopes in Nitrate)

0.9 g

8562 CO2

-Heavy, Paleomarine Origin 

(Carbon Dioxide)

set (2)

8563 CO2

-Light, Petrochemical Origin 

(Carbon Dioxide)

set (2)

8564 CO2

-Biogenic, Modern Biomass Origin 

(Carbon Dioxide)

set (2)

8568 USGS34 Nitrogen and Oxygen Isotopes 

in Nitrate

0.9 g

8569 USGS35 Nitrogen and Oxygen Isotopes 

in Nitrate

0.9 g

8573 L-glutamic Acid USGS40(Light Carbon 

and Nitrogen Isotopes in L-glutamic Acid)

1 g

8574 L-glutamic Acid USGS41 (Heavy Carbon 

and Nitrogen Isotopes in L-glutamic Acid)

0.5 g

See Table 104.10 on the website for more information.

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Pittsburgh Conference (PITTCON)

Booth #3019 

February 27 – March 1, 2018

Orange County Convention Center

Orlando, FL

American Chemical Society Spring Meeting 

(ACS)

March 18-20, 2018

Ernest N. Morial Convention Center

New Orleans, LA

AACC Meeting & Clinical Lab Exposition 

(AACC) 

July 31 – August 2, 2018

McCormick Place Convention Center

Chicago, IL

American Chemical Society Fall Meeting 

(ACS)

Hynes Convention Center

August 19-21, 2018

Boston, MA

AOAC Annual Meeting & Exposition (AOAC)

Sheraton Centre Hotel

August 26-29, 2018

Toronto, CANADA

NIST 2018 SRM 

EXHIBIT SCHEDULE

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Standard Reference Materials

for Chemical Composition 105 Health & Industrial Hygiene

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Chemical Composition 105 ■ Health & Industrial Hygiene

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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 Serum and Plasma Materials.

SRM Description

Unit of 

Issue

900a Antiepilepsy Drugs in Frozen Human Serum 4 vials

909c Frozen Human Serum 3 x 2 mL

911c Cholesterol 2 g

912a Urea-Clinical 25 g

913b Uric Acid 10 g

914a Creatinine 10 g

915b Calcium Carbonate (Clinical Standard) 20 g

916a Bilirubin 100 mg

917c D-Glucose (Dextrose) 50 g

918c Potassium Chloride (Clinical) 30 g

919b Sodium Chloride (Clinical) 30 g

920 D-Mannitol 50 g

921 Cortisol (Hydrocortisone) 1 g

924a Lithium Carbonate 30 g

927e Bovine Serum Albumin (7 %, solution)

(Total Protein Solution)

10 x 2.2 mL

928 Lead Nitrate (Clinical) 30 g

929a Magnesium Gluconate 5 g

937 Iron Metal (Clinical Standard) 50 g

955c Toxic Metals in Caprine Blood 4 vials

956d Electrolytes in Frozen Human Serum 6 x 2.0 mL

965b Glucose in Frozen Human Serum set (8)

967a Creatinine in Frozen Human Serum set(4) 

968e Fat-Soluble Vitamins, Carotenoids, and 

Cholesterol in Human Serum

set (3) 

971 Hormones in Frozen Human Serum 2 x 5 mL

972a Vitamin D Metabolites in Frozen 

Human Serum

4 x 1 mL

998 Angiotensin I (Human) 0.5 mg

1400 Bone Ash 50 g

1486 Bone Meal 50 g

1595 Tripalmitin 2 g

1598a Inorganic Constituents in Animal Serum 2 vials

1599 Anticonvulsant Drug Level Assay Standard set (4)

1950 Metabolites in Human Plasma 5 x 1 mL

1951c Lipids in Frozen Human Serum 4 vials

1952a Cholesterol in Human Serum set (6)

SRM Description

Unit of 

Issue

2366a Cytomegalovirus DNA (TowneΔ147 BAC) 

for DNA Measurements

1 vial

2378 Fatty Acids in Frozen Human Serum 3 vials

2389a Amino Acids in 0.1 mol/L Hydrochloric Acid 5 x 1.2 mL

2668 Toxic Elements in Frozen Human Urine set (10)

2669 Arsenic Species in Frozen Human Urine set (10)

2670a Toxic Elements in Urine (Freeze-Dried) sets (4)

2921 Human Cardiac Troponin Complex 5 x 115 μL

2924 C-Reactive Protein Solution 3 x 1 mL

2972a 25-Hydroxyvitamin D Calibration Solutions 20 x 1.2 mL

2973 Vitamin D Metabolites

in Frozen Human Serum (High Level)

1 vial

3667 Creatinine in Frozen Human Urine 10 mL

3668 Mercury, Perchlorate, and Iodide in Frozen 

Human Urine

set (10)

3669 Arsenic Species in Frozen Human 

Urine (Elevated Levels)

5 x 1.5 mL

3671 Nicotine Metabolites in Human 

Urine (Frozen)

3 x 10 mL

3672 Organic Contaminants in Smokers’ 

Urine (Frozen)

5 x 10 mL

3673 Organic Contaminants in Non-Smokers’ 

Urine (Frozen)

5 x 10 mL

3950 Vitamin B6 in Frozen Human Serum 2 vials

8321 Peptide Mixture of Proteomics 3 vials

8323 Yeast Protein Extract 3 x 0.2 mL

8327 Peptide Reference Material for Molecular 

Mass and Purity Measurements

set (3)

8642a FDA Saxitoxin Dihydrochloride Solution 10 x 1.2 mL

8671 NISTmAb, Humanized IgG1κ 

Monoclonal Antibody

800 μL

See Table 105.1 on the website for more information.

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105 ■ Health & Industrial Hygiene Chemical Composition

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Serum and Plasma Materials 

(frozen, liquid, and lyophilized forms)

These SRMs serve a variety of clinical measurement needs.

SRMs 1957 and 1958 are freeze-dried human sera for 

evaluating PCB congeners, chlorinated pesticides, and PBDE 

congeners with non-certified values for PFCs and dioxins 

and furans.

SRM Description

Unit of 

Issue

909c Frozen Human Serum 3 x 2 mL

927e Bovine Serum Albumin (7 %, solution)

(Total Protein Solution)

10 x 2.2 mL

956d Electrolytes in Frozen Human Serum 6 x 2.0 mL

965b Glucose in Frozen Human Serum set (8)

967a Creatinine in Frozen Human Serum set(4)

968e Fat-Soluble Vitamins, Carotenoids, 

and Cholesterol in Human Serum

set (3)

971 Hormones in Frozen Human Serum 2 x 5 mL

972a Vitamin D Metabolites in 

Frozen Human Serum

4 x 1 mL

1950 Metabolites in Human Plasma 5 x 1 mL

1951c Lipids in Frozen Human Serum 4 vials

1952a Cholesterol in Human Serum set (6)

1957 Organic Contaminants in 

Non-Fortified Human Serum

5 x 10 mL

1958 Organic Contaminants in 

Fortified Human Serum

5 x 10 mL

2378 Fatty Acids in Frozen Human Serum 3 x 1 mL

2921 Human Cardiac Troponin Complex 5 x 115 μL

2973 Vitamin D Metabolites 

in Frozen Human Serum (High Level)

1 vial

3950 Vitamin B6 in Frozen Human Serum 2 vials

See Table 105.2 on the website for more information.

Ethanol Solutions 

These SRMs are for use in the calibration of instruments 

and techniques for the determination of ethanol (ethyl 

alcohol) in breath and blood. SRM 1828a consists of four 

concentrations of ethanol-water solutions in a set of five 

ampoules.

SRM Description

Unit of 

Issue

1828b Ethanol-Water Solutions 

(Nominal Mass Fractions of 0.02 %, 0.04 %, 

0.08 %, 0.1 %, 0.2 %, and 0.3 %,)

6 x 1.2 mL

2891 Ethanol-Water Solution 

(Nominal Mass Fraction 0.02 %)

5 x 1.2 mL

2892 Ethanol-Water Solution 

(Nominal Mass Fraction 0.04 %)

5 x 1.2 mL

2893 Ethanol-Water Solution 

(Nominal Mass Fraction 0.08 %)

5 x 1.2 mL

2894 Ethanol-Water Solution 

(Nominal Mass Fraction 0.1 %)

5 x 1.2 mL

2895 Ethanol-Water Solution 

(Nominal Mass Fraction 0.2 %)

5 x 1.2 mL

2896 Ethanol-Water Solution 

(Nominal Mass Fraction 0.3 %)

5 x 1.2 mL

2897a Ethanol Water Solution 

(Nominal Mass Fraction 2 %)

5 x 10 mL

2898a Ethanol Water Solution 

(Nominal Mass Fraction 6 %)

5 x 10 mL

2899a Ethanol-Water Solution 

(Nominal Mass Fraction 25 %)

5 x 10 mL

2900 Ethanol-Water Solution 

(Nominal Mass Fraction 95.6 %)

5 x 10 mL

See Table 105.3 on the website for more information.

Toxic Substances in Urine 

(powder and frozen form)

SRM 2669 is 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.

SRM Description

Unit of 

Issue

2668 Toxic Elements in Frozen Human Urine set (10) 

2669 Arsenic Species in Frozen Human Urine set (10)

2670a Toxic Elements in Urine (Freeze-Dried) set (4) 

3668 Mercury, Perchlorate, and Iodide 

in Frozen Human Urine

set (10) 

3669 Arsenic Species in Frozen Human 

Urine (Elevated Levels)

set (5)

See Table 105.4 on the website for more information.

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Drugs of Abuse 

(hair, serum, and urine)

SRM Description

Unit of 

Issue

1507b THC-COOH in Freeze-Dried Urine set (3)

1508a Benzoylecgonine (Cocaine Metabolite) 

in Freeze-Dried Urine

set (4)

See Table 105.7 on the website for more information.

Biomaterials 

(solid forms)

Biomaterials are found in medical devices that are in 

intimate contact with tissues and body fliuds.

SRM Description

Unit of 

Issue

2910b Hydroxyapatite 2 g

8011 Gold Nanoparticles, 

Nominal 10 nm Diameter

2 x 5 mL

8012 Gold Nanoparticles, 

Nominal 30 nm Diameter

2 x 5 mL

8013 Gold Nanoparticles, 

Nominal 60 nm Diameter

2 x 5 mL

8394 Tissue Engineering Reference Scaffolds 

for Cell Culture

24 scaffolds

See Table 105.9 on the website for more information.

Respirable Materials on Filter Media 

These SRMs enable the determination of hazardous materials 

potentially found in industrial environments. SRMs 2676d, 2677a, 

and 3087a have been superseded by SRM 2783 Air Particulate on 

Filter Media. 

SRM Description

Unit of 

Issue

2681 Trace Constituent Elements in Blank 

Filters (47 mm dia) 

10 filters

2783 Air Particulate on Filter Media 

(47 mm dia)

2 + 2 Blank 

2950a Respirable Alpha Quartz on Filter Media 

(Nominal Mass of Alpha Quartz 5 μg - 

500 μg)

35 filters 

plus 35 

blanks

2960 Respirable Cristobalite on Filter Media 

(Nominal Mass of Cristobalite: 5 μg - 250 μg)

30 filters 

plus 30 

blanks

8785 Air Particulate Matter on Filter Media 3 filters

8786 Filter Blank for RM 8785 filter

See Table 105.10 on the website for more information.

Respirable Materials

SRMs 1878b and 1879b are crystalline silica materials with 

particle size 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.

SRM Description

Unit of 

Issue

1648a Urban Particulate Matter 2 g

1649b Urban Dust 2 g

1650b Diesel Particulate Matter 200 mg

1877 Beryllium Oxide Powder 20 g

1878b Respirable Alpha Quartz (Quantitative 

X-Ray Powder Diffraction Standard)

5 g

1879b Respirable Cristobalite (Quantitative 

X-Ray Powder Diffraction Standard) 

5 g

1975 Diesel Particulate Extract 4 x 1.2 mL

2583 Trace Elements in Indoor Dust (Nominal 

Mass Fraction of 90 mg/kg Lead)

8 g

2584 Trace Elements in Indoor Dust (Nominal 

Mass Fraction of 1% Lead)

8 g

2585 Organic Contaminants in House Dust 10 g

2786 Fine Atmospheric Particulate Matter

(Mean Particle Diameter < 4 μm)

100 mg

2787 Fine Atmospheric Particulate Matter

(Mean Particle Diameter < 10 μm)

100 mg

2975 Diesel Particulate Matter (Industrial 

Forklift)

1 g

See Table 105.12 on the website for more information.

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105 ■ Health & Industrial Hygiene Chemical Composition

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DNA Profiling and Nucleic Acid 

Materials (solid forms)

SRM 2374 is intended for use as a template for ribonucleic acid 

(RNA) control synthesis using in vitro transcription (IVT). These 

RNA controls are designed to be used as external, or “spikein”, controls to support confidence in gene expression assays by 

providing quantitative assessment of the technical performance 

of a gene expression measurement. A unit of the SRM contains 

96 different 0.5 mL polypropylene tubes, with approximately 10 

μg of dehydrated plasmid deoxyribonucleic acid (DNA) in each 

tube. Depending on the strand transcribed, the controls will mimic 

either “sense” or “anti-sense” eukaryotic messenger RNA (mRNA). 

SRM 2391c is intended for use in the standardization of forensic 

and paternity quality assurance procedures and instructional 

law enforcement or non-clinical research purposes. 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) core STR loci and other loci that were commercially 

available at the time of certification. Certified values for a total of 

54 STR loci plus Amelogenin, 29 of which are Y-STRs, Reference 

values for 26 STR loci, and Information values for 1 STR locus, 

12 X-STR loci, and 30 Insertion/Deletions (Indels) 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 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 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. For 

further information see: SP260-155

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. For 

further information see: SP260-155

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 lowfrequency single nucleotide mutation detection techniques.

RMs 8375, 8391, 8392, 8393, and 8398 are intended for assessing 

performance of human genome sequencing, including whole 

genome sequencing, whole exome sequencing, and more targeted 

sequencing such as gene panels. Specifically, the material can be 

used to obtain estimates of true positives, false positives, true 

negatives, and false negatives for variant calls.

SRM Description

Unit of 

Issue

2366a Cytomegalovirus DNA (TowneΔ147 BAC) 

for DNA Measurements

1 vial

2372 Human DNA Quantitation Standard set (3)

2373 Genomic DNA Standards for 

HER2 Measurements

5 vials

2374 DNA Sequence Library for External 

RNA Controls

96 tubes

2391c PCR-Based DNA Profiling Standard 6 vials

2392 Mitochondrial DNA Sequencing set (3)

2392-I Mitochondrial DNA Sequencing 1 vial

2393 CAG Repeat Length Mutation 

in Huntington’s Disease

set (6)

2394 Heteroplasmic Mitochondrial DNA 

Mutation Detection Standard

set (10)

2396 Oxidative DNA Damage Mass 

Spectrometry Standards

set (10)

8375 Microbial Genomic DNA Standards 

for Sequencing Performance Assessment 

4 vials

8391 Human DNA for Whole-Genome 

Variant Assessment (Son of Eastern 

European Ashkenazim Jewish Ancestry)

1 vial

8392 Human DNA for Whole-Genome 

Variant Assessment (Trio of Eastern 

European Ashkenazim Jewish Ancestry)

3 vials

8393 Human DNA for Whole-Genome Variant 

Assessment (Son of Chinese Ancestry)

1 vial

8398 Human DNA for Whole-Genome Variant 

Assessment (Daughter of Utah/European 

Ancestry)

1 vial

See Table 105.8 on the website for more information.

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Chemical Composition 105 ■ Health & Industrial Hygiene

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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, 7.6 cm x 10.2 cm, is coated with a single uniform paint layer 

for use with portable x-ray fluorescence analyzers. SRMs 2580, 

2581, 2582, and 2589 consist of paint that has been ground and 

homogenized into a powder, 99+% of which passes a 100 mm 

sieve. SRM 2583 and SRM 2584 consist of dust, 99+% of which 

passes a 100 mm 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. 

SRM Description

Unit of 

Issue

1648a Urban Particulate Matter 2 g

2569 Lead Paint Films for Children’s Products 8 sheets

2570 Lead Paint Film for Portable X-Ray 

Fluorescence Analyzers - Blank 

(Color: White)

1 film

2571 Lead Paint Film for Building Surfaces

(Nominal Pb 3.5 mg/cm2)(Color: Yellow)

1 + blank

2572 Lead Paint Film for Building Surfaces

(Nominal Pb 1.6 mg/cm2)(Color: Orange)

1 + blank

2573 Lead Paint Film for Building Surfaces

(Nominal Pb 1.0 mg/cm2)(Color: Red)

1 + blank

2574 Lead Paint Film for Building Surfaces

(Nominal Pb 0.7 mg/cm2)(Color: Gold)

1 + blank

SRM Description

Unit of 

Issue

2575 Lead Paint Film for Building Surfaces

(Nominal Pb 0.3 mg/cm2)(Color: Green)

1 + blank

2576 Lead Paint Film for Building Surfaces

(Nominal Pb 5.6 mg/cm2)(Color: Blue)

1 + blank

2579a Lead Paint Films For Building Surfaces 

(SRM 2570 through SRM 2575)

set (6)

2580 Powdered Paint (Nominal Mass 

Fraction 4 % Lead)

30 g

2581 Powdered Paint (Nominal Mass 

Fraction 0.5 % Lead)

35 g

2582 Powdered Paint (Nominal Mass 

Fraction 200 mg/kg Lead)

20 g

2583 Trace Elements in Indoor Dust (Nominal 

Mass Fraction of 90 mg/kg Lead)

8 g

2584 Trace Elements in Indoor Dust (Nominal 

Mass Fraction of 90 mg/kg Lead)

8 g

2586 Trace Elements in Soil Containing Lead 

From Paint (Nominal Mass 

Fraction 500 mg/kg Lead)

55 g

2587 Trace Elements in Soil (Nominal Mass 

Fraction of 3000 mg/kg Lead)

55 g

2589 Powdered Paint (Nominal Mass 

Fraction 10% Lead)

35 g

2783 Air Particulate on Filter Media

(47 mm dia)

2 + 2 Blank

8680 Paint on Fiberboard, 

Nominal 1 to 2 mg/cm2

 Lead

each

See Table 105.13 on the website for more information.

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Standard Reference Materials

for Chemical Composition 106 Inorganics

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Chemical Composition 106 ■ Inorganics

Metal (Inorganics) Constituents 

in Natural Matrices 

(liquid and solid forms)

These SRMs and RM are for analysis of materials of health or 

environmental interest. 

SRM Description

Unit of 

Issue

1640a Trace Elements in Natural Water 250 mL

1641e Mercury in Water 10 x 10 mL

1643f Trace Elements in Water 250 mL

1646a Estuarine Sediment 70 g

1648a Urban Particulate Matter 2 g

1944 New York/New Jersey Waterway Sediment 50 g

1946 Lake Superior Fish Tissue 5 x 7-9 g

1947 Lake Michigan Fish Tissue 5 x 8 g

2385 Slurried Spinach 4 x 70 g

2387 Peanut Butter 3 x 170 g

2451 Fine Carbon (Activated)

From Cyanide Ore Leaching

100 g

2583 Trace Elements in Indoor Dust (Nominal 

Mass Fraction of 90 mg/kg Lead)

8 g

2584 Trace Elements in Indoor Dust (Nominal 

Mass Fraction of 1 % Lead)

8 g

2586 Trace Elements in Soil Containing Lead 

From Paint (Nominal Mass 

Fraction 500 mg/kg Lead)

55 g

2587 Trace Elements in Soil (Nominal Mass 

Fraction of 3000 mg/kg Lead)

55 g

2700 Hexavalent Chromium in 

Contaminated Soil (Low Level)

75 g

2701 Hexavalent Chromium 

in Contaminated Soil (High Level)

75 g

2702 Inorganics in Marine Sediment 50 g

2703 Sediment for Solid Sampling 

(Small Sample) Analytical Techniques

5 g

2709a San Joaquin Soil 50 g

2710a Montana I Soil 50 g

2711a Montana II Soil 50 g

2780a Hard Rock Mine Waste 50 g

2781 Domestic Sludge 40 g

SRM Description

Unit of 

Issue

2782 Industrial Sludge 70 g

2783 Air Particulate on Filter Media

(47 mm dia)

2 + 2 Blank 

2976 Mussel Tissue (Trace Elements & 

Methylmercury) Freeze-Dried

25 g

8704 Buffalo River Sediment 50 g

8785 Air Particulate Matter on Filter Media 3 filters

8786 Filter Blank for RM 8785 filter

See Table 106.1 on the website for more information.

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106 ■ Inorganics Chemical Composition

Mercury in Activated Carbon

These SRMs are intended for use in the evaluation of 

chemical methods of analysis for mercury.

SRM Description

Unit of 

Issue

2445 Mercury in Iodinated Activated Carbon 25 g

2448 Mercury in Brominated Activated Carbon 25 g

2451 Fine Carbon (Activated) - From Cyanide 

Ore Leaching

100 g

See Table 106.3 on the website for more information.

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.

SRM Description

Unit of 

Issue

1216 Carbon Modified Silica 3 x 1 g

1632d Trace Elements in Coal (Bituminous) 50 g

1944 New York/New Jersey Waterway Sediment 50 g

2718a Green Petroleum Coke 50 g

2719 Calcined Petroleum Coke 50 g

2775 Foundry Coke 50 g

2776 Furnace Coke 50 g

8704 Buffalo River Sediment 50 g

8785 Air Particulate Matter on Filter Media 3 filters

8786 Filter Blank for RM 8785 filter

See Table 106.4 on the website for more information.

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 μm, 200 mesh) powders.

SRM Description

Unit of 

Issue

2556 Used Auto Catalyst (Pellets) 70 g

2557 Used Auto Catalyst (Monolith) 70 g

See Table 106.6 on the website for more information.

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.

SRM Description

Unit of 

Issue

8850 Zeolite Y 35-40 g

8851 Zeolite A 35-40 g

8852 Ammonium ZSM-5 Zeolite 35-40 g

See Table 106.7 on the website for more information.

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Chemical Composition 106 ■ Inorganics

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Standard Reference Materials

for Chemical Composition 107 Primary Gas Mixtures

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Chemical Composition 107 ■ Primary Gas Mixtures

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. 

SRM Description Unit of Issue

Carbon Dioxide

2745* Carbon Dioxide in Nitrogen (Nominal Amount-of-Substance Fraction 16 % mol/mol) 6 L Cylinder

1674b* Carbon Dioxide in Nitrogen (Nominal Amount-of-Substance Fraction 7 % mol/mol) 6 L Cylinder

2625a* Carbon Dioxide in Nitrogen (Nominal Amount-of-Substance Fraction 3.5 % mol/mol) 6 L Cylinder

2624a Carbon Dioxide in Nitrogen (Nominal Amount-of-Substance Fraction 3 % mol/mol) 6 L Cylinder

2623a Carbon Dioxide in Nitrogen (Nominal Amount-of-Substance Fraction 2.5 % mol/mol) 6 L Cylinder

2622a Carbon Dioxide in Nitrogen (Nominal Amount-of-Substance Fraction 2 % mol/mol) 6 L Cylinder

2621a Carbon Dioxide in Nitrogen (Nominal Amount-of-Substance Fraction 1.5 % mol/mol) 6 L Cylinder

2620a Carbon Dioxide in Nitrogen (Nominal Amount-of-Substance Fraction 1 % mol/mol) 6 L Cylinder

2619a Carbon Dioxide in Nitrogen (Nominal Amount-of-Substance Fraction 0.5 % mol/mol) 6 L Cylinder

2617 Carbon Dioxide in Nitrogen (Nominal Amount-of-Substance Fraction 500 μmol/mol) 6 L Cylinder

Carbon Monoxide

2614a Carbon Monoxide in Air (Nominal Amount-of-Substance Fraction 45 μmol/mol) 6 L Cylinder

2613a Carbon Monoxide in Air (Nominal Amount-of-Substance Fraction 20 μmol/mol) 6 L Cylinder

2741a Carbon Monoxide in Nitrogen (Nominal Amount-of-Substance Fraction 13 % mol/mol) 6 L Cylinder

2740a Carbon Monoxide in Nitrogen (Nominal Amount-of-Substance Fraction 10 % mol/mol) 6 L Cylinder

2642a* Carbon Monoxide in Nitrogen (Nominal Amount-of-Substance Fraction 8 % mol/mol) 6 L Cylinder

2641a Carbon Monoxide in Nitrogen (Nominal Amount-of-Substance Fraction 4 % mol/mol) 6 L Cylinder

2640a Carbon Monoxide in Nitrogen (Nominal Amount-of-Substance Fraction 2 % mol/mol) 6 L Cylinder

2639a Carbon Monoxide in Nitrogen (Nominal Amount-of-Substance Fraction 1 % mol/mol) 6 L Cylinder

2638a* Carbon Monoxide in Nitrogen (Nominal Amount-of-Substance Fraction 5000 μmol/mol) 6 L Cylinder

2637a* Carbon Monoxide in Nitrogen (Nominal Amount-of-Substance Fraction 2500 μmol/mol) 6 L Cylinder

1681b* Carbon Monoxide in Nitrogen (Nominal Amount-of-Substance Fraction 1000 μmol/mol) 6 L Cylinder

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107 ■ Primary Gas Mixtures Chemical Composition

SRM Description Unit of Issue

Carbon Monoxide

1680b* Carbon Monoxide in Nitrogen (Nominal Amount-of-Substance Fraction 500 μmol/mol) 6 L Cylinder

2636a* Carbon Monoxide in Nitrogen (Nominal Amount-of-Substance Fraction 250 μmol/mol) 6 L Cylinder

1679c* Carbon Monoxide in Nitrogen (Nominal Amount-of-Substance Fraction 100 μmol/mol) 6 L Cylinder

1678c* Carbon Monoxide in Nitrogen (Nominal Amount-of-Substance Fraction 50 μmol/mol) 6 L Cylinder

2635a* Carbon Monoxide in Nitrogen (Nominal Amount-of-Substance Fraction 25 μmol/mol) 6 L Cylinder

1677c* Carbon Monoxide in Nitrogen (Nominal Amount-of-Substance Fraction 10 μmol/mol) 6 L Cylinder

Nitric Oxide, Nitrous Oxide and Total Oxides of Nitrogen

2631a* Nitric Oxide in Nitrogen (Nominal Amount-of-Substance Fraction 3000 μmol/mol) 6 L Cylinder

2630* Nitric Oxide in Nitrogen (Nominal Amount-of-Substance Fraction 1500 μmol/mol) 6 L Cylinder

2735 Nitric Oxide in Nitrogen (Nominal Amount-of-Substance Fraction 800 μmol/mol) 6 L Cylinder

1687b* Nitric Oxide in Nitrogen (Nominal Amount-of-Substance Fraction 1000 μmol/mol) 6 L Cylinder

1686b* Nitric Oxide in Nitrogen (Nominal Amount-of-Substance Fraction 500 μmol/mol) 6 L Cylinder

1685b* Nitric Oxide in Nitrogen (Nominal Amount-of-Substance Fraction 250 μmol/mol) 6 L Cylinder

1684b* Nitric Oxide in Nitrogen (Nominal Amount-of-Substance Fraction 100 μmol/mol) 6 L Cylinder

1683b* Nitric Oxide in Nitrogen (Nominal Amount-of-Substance Fraction 50 μmol/mol) 6 L Cylinder

2629a* Nitric Oxide in Nitrogen (Nominal Amount-of-Substance Fraction 20 μmol/mol) 6 L Cylinder

2628a Nitric Oxide in Nitrogen (Nominal Amount-of-Substance Fraction 10 μmol/mol) 6 L Cylinder

2627a Nitric Oxide in Nitrogen (Nominal Amount-of-Substance Fraction 5 μmol/mol) 6 L Cylinder

2738 Nitric Oxide in Nitrogen (Nominal Amount-of-Substance Fraction 1000 nmol/mol) 30 L Cylinder

2737 Nitric Oxide in Nitrogen (Nominal Amount-of-Substance Fraction 500 nmol/mol) 30 L Cylinder

1718 Nitrous Oxide in Air (Nominal Amount-of-Substance Fraction 1 μmol/mol) 6 L Cylinder

2660a* Total Oxides of Nitrogen (NOx) in Air (Nominal Amount-of-Substance Fraction 100 μmol/mol) 6 L Cylinder

Oxygen

2659a* Oxygen in Nitrogen (Nominal Amount-of-Substance Fraction 21 % mol/mol) 6 L Cylinder

2658a* Oxygen in Nitrogen (Nominal Amount-of-Substance Fraction 10 % mol/mol) 6 L Cylinder

2657a* Oxygen in Nitrogen (Nominal Amount-of-Substance Fraction 2 % mol/mol) 6 L Cylinder

Sulfur Dioxide

1696a* Sulfur Dioxide in Nitrogen (Nominal Amount-of-Substance Fraction 3500 μmol/mol) 6 L Cylinder

1664a* Sulfur Dioxide in Nitrogen (Nominal Amount-of-Substance Fraction 2500 μmol/mol) 6 L Cylinder

1663a* Sulfur Dioxide in Nitrogen (Nominal Amount-of-Substance Fraction 1500 μmol/mol) 6 L Cylinder

1662a* Sulfur Dioxide in Nitrogen (Nominal Amount-of-Substance Fraction 1000 μmol/mol) 6 L Cylinder

1661a* Sulfur Dioxide in Nitrogen (Nominal Amount-of-Substance Fraction 500 μmol/mol) 6 L Cylinder

1694a* Sulfur Dioxide in Nitrogen (Nominal Amount-of-Substance Fraction 100 μmol/mol) 6 L Cylinder

1693a* Sulfur Dioxide in Nitrogen (Nominal Amount-of-Substance Fraction 50 μmol/mol) 6 L Cylinder

1689 Sulfur Dioxide in Nitrogen (Nominal Amount-of-Substance Fraction 5 μmol/mol) 6 L Cylinder

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Chemical Composition 107 ■ Primary Gas Mixtures

SRM Description Unit of Issue

Hydrogen Sulfide

2731 Hydrogen Sulfide in Nitrogen (Nominal Amount-of-Substance Fraction 20 μmol/mol) 6 L Cylinder

2730 Hydrogen Sulfide in Nitrogen (Nominal Amount-of-Substance Fraction 5 μmol/mol) 6 L Cylinder

Organic Compounds

1800b Eighteen Non-Methane Hydrocarbon Compounds in Nitrogen (Nominal 5 nmol/mol) 6 L Cylinder

1660a Methane and Propane in Air  (Nominal: 4 μmol/mol Methane; 1 μmol/mol Propane) 6 L Cylinder

2751 Methane in Air (Nominal Amount-of-Substance Fraction 100 μmol/mol) 6 L Cylinder

2750 Methane in Air (Nominal Amount-of-Substance Fraction 50 μmol/mol) 6 L Cylinder

1659a Methane in Air (Nominal Amount-of-Substance Fraction 10 umol/mol) 6 L Cylinder

1658a Methane in Air (Nominal Amount-of-Substance Fraction 1 umol/mol) 6 L Cylinder

1669b Propane in Air (Nominal Amount-of-Substance Fraction 500 μmol/mol) 6 L Cylinder

1668b* Propane in Air (Nominal Amount-of-Substance Fraction 100 μmol/mol) 6 L Cylinder

1666b Propane in Air (Nominal Amount-of-Substance Fraction 10 μmol/mol) 6 L Cylinder

1667b Propane in Air (Nominal Amount-of-Substance Fraction 50 μmol/mol) 6 L Cylinder

1665b Propane in Air (Nominal Amount-of-Substance Fraction 3 μmol/mol) 6 L Cylinder

2764 Propane in Air (Nominal Amount-of-Substance Fraction 0.25 μmol/mol) 6 L Cylinder

2765 Propane in Air (Nominal Amount-of-Substance Fraction 100 nmol/mol) 6 L Cylinder

2647a Propane in Nitrogen (Nominal Amount-of-Substance Fraction 2500 μmol/mol) 6 L Cylinder

2646a Propane in Nitrogen (Nominal Amount-of-Substance Fraction 1000 μmol/mol) 6 L Cylinder

2644a Propane in Nitrogen (Nominal Amount-of-Substance Fraction 250 μmol/mol) 6 L Cylinder

Ambient Air

1720 Northern Continental Air (Ambient Nominal Amount-of-Substance Fraction: Carbon Dioxide, 

Methane, Nitrous Oxide) 

30 L Cylinder

1721 Southern Oceanic Air (Ambient Nominal Amount-of-Substance Fraction: Carbon Dioxide, 

Methane, Nitrous Oxide)

30 L Cylinder

See Table 107.1 on the website for more information.

Those SRMs that are marked “*” are available as NTRMs from commercial suppliers.

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Standard Reference Materials

for Chemical Composition 108 Fossil & Alternative Fuels

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Chemical Composition 108 ■ Fossil & Alternative Fuels

Alcohols and Ethers [Oxygenates] 

in Gasoline 

SRMs 2294 through 2297 were produced in response to the 

U.S. EPA Final Rule on Reformulated Gas aimed at reducing 

the volatile organic compounds emitted from gasoline. 

SRMs 2294 through 2297 are certified for oxygenate, sulfur, 

benzene, and toluene, with reference values for olefins and 

aromatics. 

SRM Description

Unit of 

Issue

2294 Reformulated Gasoline  

(Nominal Mass Fraction 11 % MTBE)

2 x 20 mL

2295 Reformulated Gasoline 

(Nominal Mass Fraction 15 % MTBE)

2 x 20 mL

2296 Reformulated Gasoline 

(Nominal Mass Fraction 13 % ETBE)

2 x 20 mL

2297 Reformulated Gasoline  

(Nominal Mass Fraction 10 % Ethanol)

2 x 20 mL

See Table 108.1 on the website for more information.

Metal Constituents in Fossil Fuels 

(liquid forms) 

This SRM and RM are for analysis of metal trace elements in 

fuel oil and reference fuel. SRM 1634c is a “No. 6” fuel oil in 

terms of viscosity but has a flash point of 43 °C.

SRM Description

Unit of 

Issue

1634c Trace Elements in Fuel Oil 100 mL

8505 Vanadium in Crude Oil 250 mL

See Table 108.2 on the website for more information.

Sulfur, Mercury, and Chlorine in Fuels 

(liquid and solid forms)

These materials are for analysis of sulfur, mercury, and 

chlorine in fossil fuels. 

SRM Description

Unit of 

Issue

1616b Sulfur in Kerosene (Low Level) 100 mL

1617b 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

1622e Sulfur in Residual Fuel Oil 

(Nominal Mass Fraction 2 %)

100 mL

1623c Sulfur in Residual Fuel Oil 0.3 % 100 mL

1624d Sulfur in Diesel Fuel Oil, 0.4 % 100 mL

SRM Description

Unit of 

Issue

1632d Trace Elements in Coal (Bituminous) 50 g

1635a Trace Elements in Coal, (Subbitumimous) 50 g

2294 Reformulated Gasoline  

(Nominal Mass Fraction 11% MTBE)

2 x 20 mL

2295 Reformulated Gasoline 

(Nominal Mass Fraction 15 % MTBE)

2 x 20 mL

2296 Reformulated Gasoline 

(Nominal Mass Fraction 13 % ETBE)

2 x 20 mL

2297 Reformulated Gasoline  

(Nominal Mass Fraction 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

2682c Subbituminous Coal 

(Nominal Mass Fraction 0.5 % Sulfur)

1 x 50 g

2683c Bituminous Coal 

(Nominal Mass Fraction 2 % Sulfur) 

50 g

2684c Bituminous Coal 

(Nominal Mass Fraction 3 % Sulfur)

50 g

2685c Bituminous Coal 

(Nominal Mass Fraction 5 % Sulfur)

50 g

2693 Bituminous Coal 

(Nominal Mass Fraction 0.5 % Sulfur)

50 g

2716 Sulfur in Gasoline (<1 mg/kg) 5 x 20 mL

2717a Sulfur in Residual Fuel Oil 

(Nominal Mass Fraction 3 %)

100 mL

2718a 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

2723b Sulfur in Diesel Fuel Oil 

(Nominal Mass Fraction 10 mg/kg)

100 mL

2770 Sulfur in Diesel Fuel Oil (40 mg/kg) 10 x 10 mL

2771 Sulfur in Diesel Fuel Blend Stock 100 mL

2773 B100 Biodiesel (Animal-Based) 5 x 10 mL

2775 Foundry Coke 50 g

2776 Furnace Coke 50 g

See Table 108.3 on the website for more infomration and additional 

resources.

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108 ■ Fossil & Alternative Fuels Chemical Composition

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. 

SRM Description

Unit of 

Issue

2721 Crude Oil (Light -Sour) 5 x 10 mL

2722 Crude Oil (Heavy Sweet) 5 x 10 mL

2890 Water Saturated 1-Octanol 5 x 2 mL

8506a Moisture in Transformer Oil 5 x 9.5 mL

8509 Moisture in Methanol 5 x 5 mL

8510 Moisture in Methanol 5 x 5 mL

See Table 108.4 on the website for more information.

Fossil Fuel: Trace Elements 

(solid forms)

SRM Description

Unit of 

Issue

1632d Trace Elements in Coal (Bituminous) 50 g

1633c Trace Elements in Coal Fly Ash 75 g

1635a Trace Elements in Coal, (Subbitumimous) 50 g

2429 Flue Gas Desulfurization Gypsum 1 x 200 g

2689 Coal Fly Ash 3 x 10 g

2690 Coal Fly Ash 3 x 10 g

2691 Coal Fly Ash 3 x 10 g

2718a Green Petroleum Coke 50 g

2719 Calcined Petroleum Coke 50 g

See Table 108.6 on the website for more information.

Biofuels 

SRM Description

Unit of 

Issue

2377 Fatty Acid Methyl Esters in

2,2,4-Trimethylpentane

5 x 1.2 mL

2772 B100 Biodiesel (Soy-Based) 5 x 10 mL

2773 B100 Biodiesel (Animal-Based) 5 x 10 mL

See Table 108.8 on the website for more information.

Biomass Feedstock 

SRM Description

Unit of 

Issue

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

See Table 108.9 on the website for more information.

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Standard Reference Materials

for Chemical Composition 109 Organics

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Chemical Composition 109 ■ Organics

Organics 

SRM Description

Unit of 

Issue

869b Column Selectivity Test Mixture 

for Liquid Chromatography

5 x 1.1 mL

870 Column Performance Test Mixture 

for Liquid Chromatography

5 x 1.1 mL

1491a Methyl-Substituted Polycyclic Aromatic 

Hydrocarbons in Toluene

5 x 1.2 mL

1492 Chlorinated Pesticides in Hexane 5 x 1.2 mL

1493 Polychlorinated Biphenyl Congeners 

in 2,2,4-Trimethylpentane

5 x 1.2 mL

1494 Aliphatic Hydrocarbons 

in 2,2,4-Trimethylpentane

5 x 1.2 mL

1543 GC/MS System Performance 4 x 1 mL

1584 Priority Pollutant Phenols in Methanol 5 x 1.2 mL

1596 Dinitropyrene Isomers and 

1-Nitropyrene in Methylene Chloride

5 x 1.3 mL

1597a Complex Mixture of Polycyclic Aromatic 

Hydrocarbons Coal Tar

1 x 1.3 mL

1614 Dioxin (2,3,7,8-TCDD in Isooctane) 6 x 1.2 mL

1647f Priority Pollutant Polycyclic Aromatic 

Hydrocarbons in Acetonitrile

5 x 1.3 mL

1649b Urban Dust 2 g

1650b Diesel Particulate Matter 200 mg

1941b Organics in Marine Sediment 50 g

1944 New York/New Jersey Waterway Sediment 50 g

1945 Organics in Whale Blubber 2 x 15 g

1946 Lake Superior Fish Tissue 5 x 7-9 g

1947 Lake Michigan Fish Tissue 5 x 8 g

1953 Organic Contaminants in 

Non-Fortified Human Milk

5 x 5 mL

1954 Organic Contaminants in 

Fortified Human Milk

5 x 5 mL

1957 Organic Contaminants in 

Non-Fortified Human Serum (Freeze 

Dried)

5 x 10 mL

1958 Organic Contaminants in 

Fortified Human Serum (Freeze Dried)

5 x 10 mL

1974c Organics in Mussel Tissue 

(Mytilus edulis)

5 x 10 g

1975 Diesel Particulate Extract 4 x 1.2 mL

1991 Mix Coal Tar/Petroleum Extract 

in Methylene Chloride

5 x 1.2 mL

2257 PBDE Congeners in 2,2,4-Trimethylpentane 5 x 1.2 mL

2258 BDE 209 in 2,2,4-Trimethylpentane 5 x 1.2 mL

SRM Description

Unit of 

Issue

2259 PCB Congeners in 2,2,4-Trimethylpentane 5 x 1.2 mL

2260a Aromatic Hydrocarbon in Toluene 5 x 1.2 mL

2261 Chlorinated Pesticides in Hexane 5 x 1.2 mL

2262 Chlorinated Biphenyl Cogeners 

in Isooctane

5 x 1.2 mL

2266 Hopanes and Steranes in, 

2,2,4 Trimethylpentane

5 x 1.2 mL

2269 Perdeuterated PAH-I Solution 

in Hexane/Toluene

5 x 1.2 mL

2270 Perdeuterated PAH-II Solution 

in Hexane/Toluene

5 x 1.2 mL

2273 Chlorinated Pesticides (DDTs) 

and Metabolites in Isooctane

5 x 1.2 mL

2274 PCB Congener Solution-II in Isooctane 5 x 1.2 mL

2275 Chlorinated Pesticide Solution-II 

in Isooctane

5 x 1.2 mL

2377 Fatty Acid Methyl Esters in

2,2,4-Trimethylpentane

5 x 1.2 mL

2585 Organic Contaminants in House Dust 10 g

2779 Gulf of Mexico Crude Oil 5 x 1.2 mL

2781 Domestic Sludge 40 g

2786 Fine Particulate Matter (<4 μm) 1 bottle

2787 Fine Particulate Matter ( <10 μm) 1 bottle

2974a Organics in Freeze-Dried Mussel Tissue 

(Mytilus edulis)

5 g

2975 Diesel Particulate Matter 1 g

3060 Monoester Phthalates in Acetonitrile 5 x 1.2 mL

3257 Catechin Calibration Solutions 12 x 2 mL

3262 St. John’s Wort (Hypericum perforatum L.) 

Aerial Parts

5 x 3.3 g

3264 St. John’s Wort (Hypericum perforatum L.)

Methanol Extract

5 x 1.6 g

3672 Organic Contaminants 

in Smokers’ Urine (Frozen)

5 x 10 mL

3673 Organic Contaminants 

in Non-Smokers’ Urine (Frozen)

5 x 10 mL

8446 Perfluorinated Carboxylic Acids and 

Perfluorooctane Sulfonamide in Methanol

4 x 1.2 mL

8447 Perfluorinated Sulfonic Acids in Methanol 3 x 1.2 mL

See Table 109.1 on the website for more information.

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109 ■ Organics Chemical Composition

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 primarily 

to support the Chemical Calibration Providers of the 

Proficiency Testing Program with support by the U.S. 

Environmental Protection Agency (EPA).

SRM Description

Unit of 

Issue

3074 Phthalates in Methanol 5 x 1.2 mL

3077 Aroclor 1242 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

8504 Transformer Oil 100 mL

See Table 109.3 on the website for more information.

Perfluorinated and Polyfluorinated 

Alkyl Substances (PFAS)

SRM Description

Unit of 

Issue

1946 Lake Superior Fish Tissue 5 x 7-9 g

1947 Lake Michigan Fish Tissue 5 x 8 g

1957 Organic Contaminants in Non-fortified 

Human Serum (Freeze-Dried)

5 x 10.7 mL

1958 Organic Contaminants in Fortified 

Human Serum (Freeze-Dried)

5 x 10 mL

2781 Domestic Sludge 40 g

8446 Perfluorinated Carboxylic Acids and 

Perfluorooctane Sulfonamide in Methanol

4 x 1.2 mL

8447 Perfluorinated Sulfonic Acids in Methanol 3 x 1.2 mL

See Table 109.5 on the website for more information.

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.

SRM Description

Unit of 

Issue

2285 Ignitable Liquids Test Mixture 5 x 1.2 mL

2460 Standard Bullet each

2461 Standard Cartridge Case each

2905 Trace Terrorist Explosives Simulants 4 x 1 g

2907 Trace Terrorist Explosives Simulants 2 x 1 g

See Table 109.4 on the website for more information.

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Please Register Your SRM Online!

Registering will ensure that you will be notified of 

any technical updates or developments.

https://www.nist.gov/srm_reg

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Standard Reference Materials

for Chemical Composition 110 Food & Agriculture

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Chemical Composition 110 ■ Food & Agriculture

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. 

SRM Description

Unit of 

Issue

1546a Meat Homogenate 4 x 85 g

1548a Typical Diet set (2)

1549a Whole Milk Powder 5 x 10 g

1566b Oyster Tissue 25 g

1567b Wheat Flour 50 g

1568b Rice Flour 50 g

1570a Trace Elements in Spinach Leaves 60 g

1577c Bovine Liver 20 g

1845a Whole Egg Powder 5 x 10 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

2383a Baby Food Composite 4 x 70 g

2384 Baking Chocolate 5 x 91 g

2385 Slurried Spinach 4 x 70 g

3035 Arsenic Species in Apple Juice 5 x 1.5 mL

3233 Fortified Breakfast Cereal 60 g

3234 Soy Flour 50 g

3252 Protein Drink Mix 5 x 10 g

3254 Green Tea (Camellia sinensis) Leaves 5 x 3 g

3255 Green Tea (Camellia sinensis) Extract 5 x 1 g

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 

3290 Dry Cat Food 5 x 10 g

3530 Iodized Table Salt (Iodide) 1 x 200 g

See Table 110.1 on the website for more information.

Food Contaminants and Allergens

SRM Description

Unit of 

Issue

1566b Oyster Tissue 25 g

1946 Lake Superior Fish Tissue 5 x 7-9 g

1947 Lake Michigan Fish Tissue 5 x 8 g

1953 Organic Contaminants in NonFortified Human Milk5 x 5 mL

1954 Organic Contaminants 

in Fortified Human Milk

5 x 5 mL

2387 Peanut Butter 3 x 170 g

3256 Green Tea-Containing Solid 

Oral Dosage Form

5 x 2.5 g

8445 Spray-Dried Whole Egg for 

Allergen Detection

5 g

8642a FDA Saxitoxin Dihydrochloride Solution 5 x 1.2 mL

See Table 110.2 on the website for more information.

Agricultural Materials 

(powder form) 

SRM Description

Unit of 

Issue

1515 Apple Leaves 50 g

1547 Peach Leaves 50 g

1570a Trace Elements in Spinach Leaves 60 g

1573a Tomato Leaves 50 g

1575a Trace Elements in Pine Needles 50 g

See Table 110.4 on the website for more information.

Fertilizers 

(powder form) 

These SRMs are intended for use in the fertilizer industry as 

working standards. 

SRM Description

Unit of 

Issue

120c Phosphate Rock (Florida) 90 g

193 Potassium Nitrate 90 g

194a Ammonium Dihydrogen Phosphate 

(Fertilizer Standard)

90 g

200b Potassium Dihydrogen Phosphate, (KH2

PO4) 90 g

694 Phosphate Rock, Western 90 g

695 Trace Elements in Multi-Nutrient 

Fertilizer

70 g

2429 Flue Gas Desulfurization Gypsum 200 g

See Table 110.5 on the website for more information.

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110 ■ Food & Agriculture Chemical Composition

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.’ 

SRM Description

Unit of 

Issue

8441a Wheat Hardness set (50)

See Table 110.6 on the website for more information.

Tobacco Related Materials 

SRM Description

Unit of 

Issue

3222 Cigarette Tobacco Filler 20 x 10 g

See Table 110.10 on the website for more information.

Dietary Supplement Materials 

(includes nutraceuticals and herbs) 

SRM Description

Unit of 

Issue

3232 Kelp Powder (Thallus laminariae) 3 x 5 g

3235 Soy Milk 10 x 10 mL

3236 Soy Protein Isolate 5 x 10 g

3237 Soy Protein Concentrate 5 x 10 g

3238 Soy-Containing Solid Oral Dosage Form 5 x 10 g

3239 Isoflavones Calibration Solutions 10 x 1.2 mL

3246 Ginkgo biloba (Leaves) 5 x 3 g

3247 Ginkgo biloba (Extract) 5 x 1 g

3248 Ginkgo-Containing Tablets 5 x 1 g

3250 Saw Palmetto (Serenoa repens) Fruit 5 x 6 g

3251 Saw Palmetto (Serenoa repens) Extract 5 x 1 mL

3254 Green Tea (Camellia sinensis) Leaves 5 x 3 g

3255 Green Tea (Camellia sinensis) Extract 5 x 1 g

3256 Green Tea-Containing Solid Oral 

Dosage Form

5 x 2.5 g

3257 Catechin Calibration Solutions 12 x 2 mL

3262 St. John’s Wort (Hypericum perforatum L.) 

Aerial Parts

5 x 3.3 g

3264 St. John’s Wort (Hypericum perforatum L.) 

Methanol Extract

5 x 1.6 g

3274 Botanical Oils Containing Omega-3 

and Omega-6 Fatty Acids

4 x 1.2 mL

3275 Omega-3 and Omega-6 Fatty Acids 

in Fish Oil

3 ea 

(2 x 1.2 mL)

3280 Multivitamin/Multielement Tablets 30 x 5 

bottles

3281 Cranberry (Fruit) 5 x 6 g

3282 Low-Calorie Cranberry Juice Cocktail 5 x 1.2 mL

3283 Cranberry Extract 5 x 2.5 g

3284 Cranberry-Containing Solid Oral 

Dosage Form

5 x 2.5 g

3285 Mixed-Berry Containing Solid Oral 

Dosage Form

5 x 2.5 g

3286 Organic Acids Calibration Solution 5 x 2 mL

3291 Bilberry Extract 5 x 1 g

3530 Iodized Table Salt (Iodide) 1 x 200 g

3532 Calcium-Containing Solid Oral 

Dosage Form

5 x 10 g

See Table 110.9 on the website for more information.

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Distribution of SRMs in the AOAC Food Triangle

1 WR Wolf, KW Andrews (1995) Fresenius J Anal Chem 352:73-76. 

 

1 SRM 1588c Organics in Fish Oil

SRM 3274 Fatty Acids in Botanical Oils

SRM 3275 Fatty Acids in Fish Oils

2 SRM 2384 Baking Chocolate

3 SRM 2387 Peanut Butter

SRM 2386 Avocado Powder*

4 SRM 1546a Meat Homogenate

SRM 1845a Whole Egg Powder

5 SRM 1568b Rice Flour

SRM 2383a Baby Food Composite

SRM 3233 Fortified Breakfast Cereal

SRM 1869 Infant/Adult Nutritional Formula*

SRM 3287 Blueberries

6 SRM 1544 Fatty Acids in Frozen Diet Composite

SRM 1548a Typical Diet

SRM 1549a Whole Milk Powder

SRM 1849a Infant/Adult Nutritional Formula

7 SRM 1566b Oyster Tissue

SRM 2385 Slurried Spinach

SRM 3234 Soy Flour

SRM 3290 Dry Cat Food

9 SRM 1946 Lake Superior sh Tissue Fi

SRM 1947 Lake Michigan Fish Tissue

SRM 2974a Mussel Tissue

*in preparation

SRM 3252 Protein Drink Mix

NIST classifies food-matrix SRMs based on fat, protein, and carbohydrate content using a triangle developed 

by AOAC INTERNATIONAL1, based on the supposition that foods (and thus reference materials) within each 

sector will have similar properties and therefore will pose similar challenges in determination of the same 

nutrient. Preparation of food-matrix SRMs has been based on the distribution of foods from a typical US diet 

in the AOAC triangle, with a majority of common foods and SRMs categorized in sectors 5 and 6 (e.g., fruits, 

vegetables, cereals, and grains). Conversely, only a small fraction of foods and SRMs are categorized in 

sectors 1 through 4 (higher-fat foods like meats and nuts). Additional materials are also prepared based on 

suggestions from user communities.

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Standard Reference Materials

for Chemical Composition 111 Geological Materials & Ores

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Chemical Composition 111 ■ Geological Materials & Ores

Ores 

(powder form) 

SRM Description

Unit of 

Issue

25d Manganese Ore 60 g

69b Bauxite (Arkansas) 60 g

79a Fluorspar 120 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 Refractory Gold Ore 200 g

1835 Borate Ore 60 g

2430 Scheelite Ore 100 g

See Table 111.2 on the website for more information.

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. 

SRM Description

Unit of 

Issue

8455 Pyrite Ore Bioleaching Substrate 100 g

See Table 111.3 on the website for more information.

Clays 

(powder form)

SRM Description

Unit of 

Issue

97b Flint Clay 60 g

98b Plastic Clay 60 g

679 Brick Clay 75 g

See Table 111.4 on the website for more information.

Rock and Minerals 

(powder form)

SRM Description

Unit of 

Issue

1d Limestone, Argillaceous 70 g

70b Potassium Feldspar 40 g

81a Glass Sand 75 g

88b Dolomitic Limestone 75 g

99b Soda Feldspar 40 g

165a Glass Sand  75 g

278 Obsidian Rock 35 g

607 Potassium Feldspar 5 g

688 Basalt Rock 60 g

1413 High Alumina Sand 75 g

2429 Flue Gas Desulfurization Gypsum 200 g

See Table 111.5 on the website for more information.

Refractories (powder form)

SRM Description

Unit of 

Issue

76a Burnt Refractory (Al2O3-40%) 75 g

77a Burnt Refractory (Al2O3-60%) 75 g

78a Burnt Refractory (Al2O3-70%) 75 g

154c*** Titanium Dioxide 90 g

198 Silica Brick 45 g

199 Silica Brick 45 g

*** Information values are provided for additional 71 elements

See Table 111.6 on the website for more information.

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111 ■ Geological Materials & Ores Chemical Composition

Soils, Sediments, and Sludges 

(powder form) 

SRMs 2586, 2587, 2700 2701, 2709a, 2710a, 2711a, 2781, 

2782 also have non-certified leach data. See certificate for 

details and leach methods used. 

SRM Description

Unit of 

Issue

1646a Estuarine Sediment 70 g

1944 New York/New Jersey Waterway Sediment 50 g

2586 Trace Elements in Soil Containing Lead 

From Paint (Nominal 500 mg/kg Lead)

55 g

2587 Trace Elements in Soil Containing Lead 

From Paint (Nominal 3000 mg/kg Lead)

55 g

2700 Hexavalent Chromium 

in Contaminated Soil (Low Level)

75 g

2701 Hexavalent Chromium 

in Contaminated Soil (High Level)

75 g

2702 Inorganics in Marine Sediment 50 g

2703 Sediment for Solid Sampling 

(Small Sample) Analytical Techniques

5 g

2709a San Joaquin Soil 50 g

2710a Montana I Soil 50 g

2711a Montana II Soil 50 g

2780 Hard Rock Mine Waste 50 g

2781 Domestic Sludge 40 g

2782 Industrial Sludge 70 g

8704 Buffalo River Sediment 50 g

See Table 111.7 on the website for more information.

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Chemical Composition 111 ■ Geological Materials & Ores

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Standard Reference Materials

for Chemical Composition 112 Ceramics & Glasses

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Chemical Composition 112 ■ Ceramics & Glasses

Nitrides 

(powder form) 

SRM Description

Unit of 

Issue

8983 Silicon Nitride  4.5 g

See Table 112.1 on the website for more information.

Cemented Carbides 

(powder form)

SRMs 887-889 are prepared from sintered tungsten carbide base 

materials. 

SRM Description

Unit of 

Issue

887 Cemented Carbide (W-83,Co-10) 100 g

888 Cemented Carbide (W-64,Co-25,Ta-5) 100 g

889 Cemented Carbide (W-75,Co-9,Ta-5,Ti-4) 100 g

See Table 112.2 on the website for more information.

Glasses (powder and solid forms) 

SRM Description

Unit of 

Issue

80a Soda-Lime Glass 45 g

81a Glass Sand 75 g

89 Glass, Lead Barium 45 g

92 Soda-Lime Glass (Low Boron) 45 g

93a Borosilicate Glass wafer

165a Glass Sand  75 g

620 Soda Lime, Flat set (3)

1411 Soft Borosilicate Glass set (10)

1412 Multicomponent Glass set (8)

1413 High Alumina Sand 75 g

1830 Soda Lime Float Glass (Nominal Mass 

Fraction 0.1 % Al2O3)

3 platelets

1831 Soda Lime Sheet Glass (Nominal Mass 

Fraction 1.2 % Al2O3)

3 platelets

2696 Silica Fume 70 g

See Table 112.3 on the website for more information.

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. 

SRM Description

Unit of 

Issue

610 Trace Elements in Glass 4 wafers

611 Trace Elements in Glass 4 wafers

612 Trace Elements in Glass 4 wafers

613 Trace Elements in Glass 4 wafers

614 Trace Elements in Glass 4 wafers

616 Trace Elements in Glass 4 wafers

617 Trace Elements in Glass 4 wafers

In addition to the elements listed above, the glass SRMs 

contain the following 23 elements:  Be, Bi, Cs, Cl, F, Ge, 

Hf, Hg, Li, Lu, Mg, Nb, P, Pr, S, Tb, Te, Tm, Sn, W, V, Y, 

and Zr.

See Table 112.4 on the website for more information.

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Standard Reference Materials

for Chemical Composition 113 Cement

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Chemical Composition 113 ■ Cement

Cements and Related Materials 

(powder form)

These portland (1880b, 1881b, 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. 

SRM Description

Unit of 

Issue

633a Portland Cement 4 x 5 g

634a Portland Cement 100 g

635a Portland Cement (Blended with Slag) 5 x 5 g

1880b Portland Cement 4 x 5 g

1881b Portland Cement (Blended with Fly Ash) 4 x 5g

1882a Calcium Aluminate Cement 4 x 5 g

1883a Calcium Aluminate Cement 4 x 5 g

1884b Portland Cement 5 x 4.5 g

1885b Portland Cement 5 x 5 g

1886a Portland Cement 

(White Portland Cement with Low Iron)

4 x 5 g

1886b White Portland Cement 5 x 5 g

1887b Portland Cement 5 x 4 g

1888b Portland Cement 4 x 5 g

1889a Portland Cement 

(Blended with Limestone)

4 x 5 g

2429 Flue Gas Desulfurization Gypsum 200 g

2696 Silica Fume 70 g

See Table 113.1 on the website for more information.

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. 

SRM Description

Unit of 

Issue

2686a Portland Cement Clinker 4 x 7 g

2687 Portland Cement Clinker 3 x 10 g

2688 Portland Cement Clinker 3 x 10 g

See Table 113.2 on the website for more information.

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Standard Reference Materials

for Chemical Composition 114 Engine Wear Materials

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Chemical Composition 114. Engine Wear Materials

Lubricating Oils 

SRM Description

Unit of 

Issue

1083 Wear Metals in Lubricating Oil  150 mL

1085c Wear Metals in Lubricating Oil set (10)

1818a Chlorine in Lubricating Base Oils set (5)

1819a Sulfur in Lubricating Base Oil set (5)

1848 Lubricating Oil Additive Package 100 g

See Table 114.2 on the website for more information.

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Standard Reference Materials

for Chemical Composition 115 Forensics

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Chemical Composition 115 ■ Forensics

Ethanol Solutions

SRM Description

Unit of 

Issue

1828b Ethanol-Water Solutions 6 x 1.2 mL

2891 Ethanol-Water Solution 

(Nominal Mass Fraction 0.02 %)

5 x 1.2 mL

2892 Ethanol-Water Solution 

(Nominal Mass Fraction 0.04 %)

5 x 1.2 mL

2893 Ethanol-Water Solution 

(Nominal Mass Fraction 0.08 %)

5 x 1.2 mL

2894 Ethanol-Water Solution 

(Nominal Mass Fraction 0.1 %)

5 x 1.2 mL

2895 Ethanol-Water Solution 

(Nominal Mass Fraction 0.2 %)

5 x 1.2 mL

2896 Ethanol-Water Solution 

(Nominal Mass Fraction 0.3 %)

5 x 1.2 mL

2897a Ethanol Water Solution 

(Nominal Mass Fraction 2 %)

5 x 10 mL

2898a Ethanol Water Solution

(Nominal Mass Fraction 6 %)

5 x 10 mL

2899a Ethanol-Water Solution

(Nominal Mass Fraction 25 %)

5 x 10 mL

2900 Ethanol-Water Solution 

(Nominal Mass Fraction 95.6 %)

5 x 10 mL

See Table 105.3 on the website for more information.

Drugs of Abuse 

(hair, serum, and urine)

SRM Description

Unit of 

Issue

1507b THC-COOH in Freeze-Dried Urine set (3)

1508a Benzoylecgonine (Cocaine Metabolite) 

in Freeze-dried Urine

set (4)

See Table 105.7 on the website for more information.

DNA Profiling and Nucleic 

Acid Materials (solid forms)

SRM Description

Unit of 

Issue

2366a Cytomegalovirus DNA (TowneΔ147 BAC) 

for DNA Measurements

1 vial

2372 Human DNA Quantitation Standard set (3)

2373 Genomic DNA Standards for 

HER2 Measurements

5 vials

2374 DNA Sequence Library for External 

RNA Controls

96 tubes

SRM Description

Unit of 

Issue

2391c PCR-Based DNA Profiling Standard 6 vials

2392 Mitochondrial DNA Sequencing set (3)

2392-I Mitochondrial DNA Sequencing

(Human HL-60 DNA)

1 vial

2393 CAG Repeat Length Mutation 

in Huntington’s Disease

set (6)

2394 Heteroplasmic Mitochondrial DNA 

Mutation Detection Std

set (10)

2396 Oxidative DNA Damage Mass 

Spectrometry Standards

set (10)

8375 Microbial Genomic DNA Standards 

for Sequencing Performance Assessment

4 vials

8391 Human DNA for Whole-Variant Assessment 

(Son of Eastern European Ashkenazim 

Jewish Ancestry)

1 vial

8392 Human DNA for Whole-Genome 

Variant Assessment (Trio of Eastern 

European Ashkenazim Jewish Ancestry)

3 vials

8393 Human DNA for Whole-Genome Variant 

Assessment (Son of Chinese Ancestry)

1 vial

8398 Human DNA for Whole-Genome Variant 

Assessment (Daughter of Utah/European 

Ancestry)

1 vial

See Table 105.8 on the website for more information.

Crime Scene Investigations

SRM Description

Unit of 

Issue

2285 Ignitable Liquids Test Mixture 5 x 1.2 mL

2460 Standard Bullet each

2461 Standard Cartridge Case each

2905 Trace Terrorist Explosives Simulants 4 x 1 g

2907 Trace Terrorist Explosives Simulants 2 bottles

See Table 109.4 on the website for more information.

Right - optical micrograph showing 

the three certified areas of the SRM, 

breech face impression (BF), firing 

pin impression (FP), and ejector 

mark (EM); 

Left - a NIST SRM 2461 Standard 

Cartridge Case mounted on a brass 

cylinder holder.

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Standard Reference Materials

for Physical Properties 201 Ion Activity

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Physical Properties 201 ■ Ion Activity

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. 

SRM Description

Unit of 

Issue

185i Potassium Hydrogen Phthalate 

pH Standard

60 g

186g pH Standards Potassium Dihydrogen 

Phosphate (186-I-g)

Disodium Hydrogen Phosphate (186-II-g)

1 x 30 g; 

1 x 45 g 

187e Sodium Tetraborate (Borax), pH 30 g

188 Potassium Hydrogen Tartrate 

(pH Standard)

60 g

189c Potassium Tetroxalate Dihydrate 

pH Standard

65 g

191d pH Standard 

Sodium Bicarbonate (191d-I) 

Sodium Carbonate (191d-II)

1 x 25 g;

1 x 30 g

2193a Calcium Carbonate pH Standard

[used as saturated Ca(OH)2 solution]

30 g

See Table 201.1 on the website for more information.

Biological Buffer Systems (powder form) 

These SRMs are used to calibrate clinical instruments (e.g., 

blood pH measurements), in the range of pH 7 to 8. They 

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. 

SRM Description

Unit of 

Issue

2181 HEPES 60 g

2182 HEPES Sodium Salt 60 g

See Table 201.2 on the website for more information.

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.

SRM Description

Unit of 

Issue

2185 Potassium Hydrogen Phthalate pD Standard 60 g

2186I Potassium Dihydrogen Phosphate 30 g

2186II Disodium Hydrogen Phosphate 30 g

2191a Sodium Bicarbonate 30 g

2192a Sodium Carbonate 30 g

See Table 201.3 on the website for more information.

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 0.1 mol/L. 

SRM Description

Unit of 

Issue

2201 Sodium Chloride (Ion-Selective) 125 g

2203 Potassium Fluoride (Standard for 

Ion-Selective Electrodes)

125 g

See Table 201.4 on the website for more information.

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Standard Reference Materials

for Physical Properties 202 Polymeric Properties

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Physical Properties 202 ■ Polymeric Properties

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. 

Polymers 

SRM Description

Unit of 

Issue

705a Polystyrene 

(Narrow Molecular Weight Distribution)

5 g

706a Polystyrene (Broad Molecular Mass 

Distribution)

18 g

1473c Low Density Polyethylene Resin 60 g

1474b Polyethylene Resin 60 g

1475a Polyethylene, Linear 50 g

1476a Branched Polyethylene Resin 12 g

1478 Polystyrene 

(Narrow Molecular Weight Distribution)

2 g

1479 Polystyrene 

(Narrow Molecular Weight Distribution)

2 g

1482a Polyethylene 0.3 g

1483a Linear Polyethylene 0.3 g

1484a Linear Polyethylene 0.3 g

1487 Poly(Methyl Methacrylate) 

(6 K Narrow Molecular Weight Distribution)

2 g

1488 Poly(Methyl Methacrylate) 

(29 K Narrow Molecular Weight Distribution)

2 g

2881 Polystyrene Absolute Molecular Mass 

Distribution Standard

0.3 g

2885 Polyethylene (Mw, 6 280 g/mol) 0.3 g

2886 Polyethylene (Mw, 87 000 g/mol) 0.3 g

2887 Polyethylene (Mw, 196 400 g/mol) 0.3 g

See Table 202.1 on the website for more information.

Melt Flow Rate 

SRM Description

Unit of 

Issue

1496 Unpigmented Polyethylene Gas Pipe Resin 0.9 kg

See Table 202.1 on the website for more information.

Viscosity

SRM Description

Unit of 

Issue

2490 Non-Newtonian Polymer Solution 

for Rheological Measurements

100 mL

2492 Bingham Paste Mixture 

for Rheological Measurements

kit for 

two 

batches

2493 Bingham Mortar Mixture 

for Rheological Measurements

kit for 

two 

batches

See Table 202.1 on the website for more information.

Biomaterials 

SRM Description

Unit of 

Issue

8394 Tissue Engineering Reference Scaffolds 

for Cell Culture

24 

scaffolds

See Table 202.1 on the website for more information.

RM 8394: 10 scaffolds used for structural characterization as 

(a) Stereomicrographs and (b) X ray microcomputed 3D tomographs. 

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Standard Reference Materials

for Physical Properties 203 Thermodynamic Properties

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Physical Properties 203 ■ Thermodynamic Properties

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. 

SRM Description

Unit of 

Issue

39j Benzoic Acid (Calorimetric Standard) 30 g

1656 Thianthrene Combustion Calorimetric 

Standard

30 g

1657 Synthetic Refuse-Derived Fuel 

Combustion Calorimetric Standard

100 g

2152 Urea Combustion Calorimetric Standard 25 g

See Table 203.1 on the website for more information.

Solution Calorimetry 

This SRM is for calibration and validation of differential 

scanning calorimeters, differential thermal analyzers, and 

similar instruments.

SRM Description

Unit of 

Issue

1655 Potassium Chloride, KCl (cr) 

for Solution Calorimetry

30 g

See Table 203.2 on the website for more information.

Enthalpy and Temperature of Fusion

These SRMs are for calibration and validation of differential 

scanning calorimeters, differential thermal analyzers, and 

similar instruments.

SRM Description

Unit of 

Issue

2234 Gallium for Thermal Analysis 2 g

2235 Bismuth for Thermal Analysis 1.5 g

See Table 203.5 on the website for more information.

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 Heat Capacity 

SRM Description

Unit of 

Issue

705a Polystyrene (Narrow Molecular 

Weight Distribution)

5 g

720 Sapphire Heat Capacity 15 g

781D2 Molybdenum - Heat Capacity 10 cm

See Table 203.5 on the website for more information.

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 set (4)

See Table 203.5 on the website for more information.

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. 

SRM Description

Unit of 

Issue

740a Zinc Freezing Point Standard  200 g

741a Tin Freezing-Point Standard 200 g

1746 Silver Freezing-Point Standard 300 g

1751 Gallium Melting-Point Standard 200 g

See Table 203.8 on the website for more information.

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203 ■ Thermodynamic Properties Physical Properties

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. 

SRM Description

Unit of 

Issue

45d Copper Secondary Freezing Point 450 g

49e Lead Secondary Freezing Point Standard 600 g

742 Aluminum Oxide Pyrometric Standard 10 g

See Table 203.10 on the website for more information.

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. 

SRM Description

Unit of 

Issue

1968 Gallium Melting-Point Standard 25 g

1970 Succinonitrile Triple Point 60 g

1972 1,3-Dioxolan-2-one Triple Point 60 g

See Table 203.11 on the website for more information.

Thermocouple Materials 

SRM Description

Unit of 

Issue

1749 Gold versus Platinum Thermocouple 

Certified Thermometer

each

1750 Standard Platinum Resistance 

Thermometer Certified Thermometer

each

1967a High-Purity Platinum Thermoelement

(platinum wire)

0.51 x 1m

See Table 203.13 on the website for more information.

Thermal Conductivity of Iron (rod 

form), Fibrous Glass, and Polystyrene 

SRM Description

Unit of 

Issue

1450d Thermal Conductivity, Fibrous Glass Board each

1453 Thermal Conductivity -

Expanded Polystyrene Board

each

8420 Electrolytic Iron 0.64 D x 5.0

See Table 203.15 on the website for more information.

Thermal Expansion of Glass 

(rod form)

SRM Description

Unit of 

Issue

731L1 Borosilicate Glass - Thermal Expansion 5 cm

731L2 Borosilicate Glass - Thermal Expansion 10 cm

731L3 Borosilicate Glass - Thermal Expansion 15 cm

See Table 203.16 on the website for more information.

Thermal Resistance Properties of 

Fibrous Glass and Fumed Silica Board 

SRM Description

Unit of 

Issue

1449 Thermal Resistance - Fumed Silica Board each

1452 Thermal Resistance - Fibrous Glass Blanket 

for High Precision Measurements

each

1459 Thermal Resistance - Fumed Silica Board each

See Table 203.17 on the website for more information.

Thermoelectric Materials 

SRM Description

Unit of 

Issue

3451 Low Temperature Seebeck 

Coefficient Standard

bar

 See Table 203.18 on the website for more information.

SRM 3451 Low-Termperature Seebeck Coefficient Standard

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Standard Reference Materials . • L , 

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Standard Reference Data . • L , 

. , 

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NIST Measurement Services Websites of Interest

Standard Reference Materials

https://www.nist.gov/srm

Historical Archived Certificates/Reports of Investigation

https://www-s.nist.gov/srmors/certArchive.cfm

NIST Scientific and Technical Databases

https://www.nist.gov/srd

NIST Data Gateway

https://srdata.nist.gov/gateway

Calibrations Services

https://www.nist.gov/calibrations

Standard Reference Instruments

https://www.nist.gov/srm/standard-reference-instruments.cfm

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Standard Reference Materials

for Physical Properties 204 Optical Properties

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Physical Properties 204 ■ Optical Properties

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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 Description

Unit of 

Issue

931h Liquid Absorbance Filters, UV-VIS set (12)

935a Potassium Dichromate (Ultraviolet 

Absorbance Standard)

15 g

1921b IR Transmission Wavelength 

(Polystyrene Film)

1 card

2031b Metal-on-Fused-Silica Neutral Density 

Filters (250 nm to 635 nm)

set (3)

2034 Holmium Oxide Solution Wavelength 

from 240 nm to 650 nm

Cuvette

2035a Ultraviolet-Visible-Near-Infrared 

Wavelength/Wavenumber Transmission 

Standard

each

2036 Near Infrared Wavelength/Wavenumber 

Reflection Standard

each

2082 Pathlength Absorbance Standards for 

Microliter Volume Spectrophotometers

3 vials

See Table 204.1 on the website for more information.

Fluorescence and Raman Spectroscopy 

SRM Description

Unit of 

Issue

1932 Fluorescein Solution 3 x 2 mL

1934 Fluorescent Dyes for Quantitative Flow 

Cytometry (Visible Spectral Range)

4 ampoules 

2241 Relative Intensity Correction Standard 

for Raman Spectroscopy: 785 nm Excitation

each

2242 Relative Intensity Correction Standard 

for Raman Spectroscopy: 532 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

SRM Description

Unit of 

Issue

2940 Relative Intensity Correction Standard 

for Fluorescence Spectroscopy: 

Orange Emission

each

2941 Relative Intensity Correction Standard 

for Fluorescence Spectroscopy: 

Green Emission

each

2942 Relative Intensity Correction Standard 

for Fluorescence Spectroscopy: 

Ultraviolet Emission

each

2943 Relative Intensity Correction Standard 

for Fluorescence Spectroscopy: 

Blue Emission

each

2944 Relative Intensity Correction Standard 

for Fluorescence Spectroscopy: 

Red Emission

each

See Table 204.2 on the website for more information.

Infrared Reflectance (solid form) 

SRM Description

Unit of 

Issue

2036 Near Infrared Wavelength/

Wavenumber Reflection Standard

each

See Table 204.2 on the website for more information.

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.

SRM Description

Unit of 

Issue

17f Sucrose Optical Rotation 60 g

See Table 204.2 on the website for more information.

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 highcontrast, 5-line patterns ranging in spatial frequency of 

1 mm-1 to 18 mm-1.

SRM Description

Unit of 

Issue

1010a Microcopy Resolution Test Charts set (5)

See Table 204.2 on the website for more information.

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Standard Reference Materials

for Physical Properties 205 Radioactivity

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Physical Properties 205 ■ Radioactivity

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” 

SRM Description

Unit of 

Issue

953 Neutron Density Monitor Wire 1 m

See Table 205.1 on the website for more information.

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

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. 

SRM Description

Unit of 

Issue

4222c Carbon-14 Radioactivity Standard for 

Liquid Scintillation Counting

5 mL

4226d Nickel-63 Radioactivity Standard  5 mL

4233e Cesium-137 Radioactivity 

Standard Solution

5 mL

4239 Strontium-90 Radioactivity 

Standard Solution

5 mL

4251C Barium-133 Radioactivity 

Standard Solution

5 mL

SRM Description

Unit of 

Issue

4274 Holmium-166m Gamma-ray 

Emission Rate Standard Solution

5 mL

4288b Technetium-99 Radioactivity Standard 5 mL

4320b Curium-244 Radioactivity Standard 5 mL

4321c Natural Uranium Radioactivity 

Standard Solution

5 mL

4322c Americium-241 Radioactivity Standard 5 mL

4323b Plutonium-238 Radioactivity Standard 5 mL

4324b Uranium-232 Radioactivity 

Standard Solution

5 mL

4326a Polonium-209 Radioactivity Standard 5 mL

4328c Thorium-229 Radioactivity 

Standard Solution

5 mL

4329 Curium-243 Radioactivity 

Standard Solution

5 mL

4330c Plutonium-239 Radioactivity Standard 3 mL

4332e Americium-243 Radioactivity Standard 5 mL

4334i Plutonium-242 Radioactivity 

Standard Solution

5 mL

4337 Lead-210 Radioactivity Standard Solution 5 mL

4338a Plutonium-240 Radioactivity 

Standard Solution

5 mL

4339b Radium-228 Radioactivity Solution 5 mL

4340b Plutonium-241 Radioactivity Standard  5 mL

4341a Neptunium-237 Radioactivity Standard 5 mL

4342a Thorium-230 Radioactivity Standard  5 mL

4361c Hydrogen-3 Radioactivity Standard 500 mL

4370c Europium-152 Radioactivity 

Standard Solution

5 mL

4915f Cobalt-60 Radioactivity Standard Solution 5 mL

4919i Strontium-90 Radioactivity Standard  5 mL

4926e Hydrogen-3 Radioactivity Standard 20 mL

4927f Hydrogen-3 Water Radioactivity Standard 5 mL

4929f Iron-55 Radioactivity Standard 5 mL

4943 Chlorine-36 Radioactivity Standard  3 mL

4949d Iodine-129 Radioactivity 

Standard Solution

5 mL

4965 Radium-226  Radioactivity 

Standard Solution

5 mL

4966a Radium-226 Radioactivity Standard  5 mL

4967a Radium-226 Radioactivity 

Standard Solution

5 mL

4969 Radium-226 Radioactivity Standard 5 mL

See Table 205.4 on the website for more information.

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205 ■ Radioactivity Physical Properties

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.

SRM Description

Unit of 

Issue

Approximate 

Activity 

Half Life 

(days) Month Produced*

4401L Iodine-131 Radioactivity Standard 5 mL 5 MBq/g 8 February

4401H** Iodine-131 Radioactivity Standard  5 mL 600 MBq/g 8 February

4404L Thallium-201 Radioactivity Standard  5 mL 10 MBq/g 3 June

4404H** Thallium-201 Radioactivity Standard  5 mL 500 MBq/g 3 June

4407L Iodine-125 Radioactivity Standard  5 mL 5 MBq/g 59.4 December

4407H** Iodine-125 Radioactivity Standard  5 mL 370 MBq/g 59.4 December

4410H Technetium-99m Radioactivity Standard  5 mL 1.0 GBq/g 0.3 September

4412L Molybdenum-99 Radioactivity Standard  5 mL 10 MBq/g 2.74 April

4412H** Molybdenum-99 Radioactivity Standard  5 mL 700 Mbq/g 2.74 April

4415L Xenon-133 Radioactivity Standard 5 mL 150 MBq/g 5.243 September

4415H** Xenon-133 Radioactivity Standard 5 mL 12 GBq/g 5.243 September

4416L Gallium-67 Radioactivity Standard  5 mL 5 MBq/g 3.3 May

4416H** Gallium-67 Radioactivity Standard  5 mL 370 MBq/g 3.3 May

4417L Indium-111 Radioactivity Standard  5 mL 10 MBq/g 2.8 August

4417H** Indium-111 Radioactivity Standard  5 mL 500 MBq/g 2.8 August

4427L Yttrium-90 Radioactivity Standard  5 mL 5 MBq/g 2.67 October

4427H** Yttrium-90 Radioactivity Standard  5 mL 50 MBq/g 2.67 October

See Table 205.5 on the website for more information.

*Check the website for details as to the order date deadline for these SRMs. 

**Only available to members of NRMAP, Inc. For information on membership: NRMAP/NIST Program https://www-s.nist.gov/srmors/certificates/documents/

NRMAP-PharmBroch2012.pdf

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Physical Properties 205 ■ Radioactivity

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 225 g of a 

450 kg lot of oxalic acid prepared by fermentation of French 

beet molasses from the 1977 spring, summer, and autumn 

harvests. 

SRM Description

Unit of 

Issue

4990c Oxalic Acid  8 x 28 g

See Table 205.7 on the website for more information.

Radioactive Natural Matrix Materials 

(powder form)

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.

SRM Description

Unit of 

Issue

4350b River Sediment Environmental 

Radioactivity Standard

85 g

4351 Human Lung Environmental 

Radioactivity Standard

45 g

4352 Human Liver Powder 45 g

4353a Rocky Flats Soil Number 2 90 g

4354 Lake Sediment Powder 25 g

4355 Peruvian Soil Powder 75 g

4356 Ashed Bone (Radioactivity) 15 g

4357 Ocean Sediment Powder 85 g

4358 Ocean Shellfish Radionuclide Standard 150 g

4359 Seaweed Radionuclide Standard 300 g

See Table 205.11 on the website for more information.

Considering a Radioactive 

SRM(s) Order?

Start by submitting a request to our SRM Sales Office, via 

email (srminfo@nist.gov) or fax (301-948-3730). After it 

has been received, you will be contacted for any additional 

information needed. Based on the regulations that apply 

to you as a customer either within the United States (United 

States includes Puerto Rico and all territories and 

possessions of t h e United States) or outside the United 

States, NIST will determine if your request can be cleared 

f o r processing. Requirements for the different customer 

locations are outlined below. 

Customers in Organizations within the United States:

If the material(s) requested is/are subject to license 

requirements by the Nuclear Regulatory Commission 

(NRC). Prior t o shipment, NIST is required by law t o 

verify t h e domestic customer’s authorization to receive 

and possess radioactive material. Once NIST makes a 

determination, you will be notified with the disposition of 

your request. For approved requests, your order confirmation 

or quote will be forwarded to you.

Customers in Organizations outside the United States:

l Import permit for radioactive material: Your country 

may require an import permit for radioactive material. 

Prior confirmation of your import permit status is 

necessary for the disposition of your request.

m If your country requires an import permit, NIST 

must have a copy in order to complete your 

order and facilitate shipment with the carrier. 

l Export controls: NIST is required to determine if your 

country is subject to export controls as determined by 

the Nuclear Regulatory Commission (NRC) and the 

U.S. Department of Commerce, Bureau of Industry and 

Security. NIST will review those controls and determine 

the disposition of your request.

l Once NIST has received your import permit (if 

applicable) and approved your request for export, your 

order confirmation or quote will be forwarded.

If you have any technical questions, please contact the NIST 

Radiation Physics Division at radsrms@nist.gov.

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Standard Reference Materials

for Physical Properties 206 Electrical Properties

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Physical Properties 206 ■ Electrical Properties

Electrical Resistivity and Conductivity 

of Iron (rod form) 

SRM Description

Unit of 

Issue

8420 Electrolytic Iron 0.64 D x 5.0

See Table 206.1 on the website for more information.

Electrical Resistivity and Conductivity 

of Silicon (block and wafer forms) 

SRMs 2541 and 2543 consist of single wafers intended for 

use as reference standards for sheet resistance and resistivity 

measurements utilizing the four-point probe method. SRMs 

2543 are made of Czochralski-grown, boron-doped silicon 

with (100) crystallographic orientation.

SRM Description

Unit of 

Issue

2541 Silicon Resistivity Standard - 

0.01 ohm•cm Level

each

2543 Silicon Resistivity Standard - 

1 ohm•cm Level

each

See Table 206.2 on the website for more information.

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. 

SRM Description

Unit of 

Issue

1457 Superconducting Critical Current - 

Nb Ti Wire

each

See Table 206.4 on the website for more information.

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Standard Reference Materials

for Physical Properties 207 Metrology

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Physical Properties 207 ■ Metrology

Scanning Electron Microscope (SEM) 

These RMs are for calibrating the magnification scale and 

evaluating the performance of scanning electron microscopes.

RM 8091 is used in checking the sharpness performance of 

scanning electron microscopes.

SRM Description

Unit of 

Issue

8091 Scanning Electron Microscope 

Sharpness Standard

each

8820 Scanning Electron Microscope Scale 

Calibration Artifact

each

See Table 207.1 on the website for more information.

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. 

SRM Description

Unit of 

Issue

2133 Phosphorus Implant in Si  Depth Profile each

2134 Arsenic Implant in Silicon Depth 

Profile Standard

each

2135c Ni/Cr Thin Film Depth Profile each

2137 Boron Implant in Silicon Standard

for Calibration of Concentration in 

a Depth Profile

each

See Table 207.3 on the website for more information.

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.  SRM 2520 is an optical fiber 

specimen with a known cladding diameter value. 

SRM Description

Unit of 

Issue

2514 Wavelength Calibration Reference 

for 1560 nm to 1595 nm 

each

2515 Wavelength Calibration Reference 

for 1595 nm to 1630 nm

each

2517a High Resolution Wavelength Calibration 

Reference for 1510 to 1540 nm Acetylene 

12C2H2

each

2519a High Resolution Wavelength Calibration 

Reference for 1530 nm -1565 nm Hydrogen 

Cyanide

each

2520 Optical Fiber Diameter Standard each

2553 Optical Fiber Coating Diameter 

(Nominal Refractive Index 1.504)

each

2554 Optical Fiber Coating Diameter 

(Nominal Refractive Index 1.515)

each

See Table 207.4 on the website for more information.

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207 ■ Metrology Physical Properties

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. 

SRM Description

Unit of 

Issue

1358b Coating Thickness Standard, 

(Nonmagnetic Coating on Steel)

set (5)

1359b Coating Thickness Standard 

(Nonmagnetic Coating on Steel)

set (5)

1361b Coating Thickness Standard 

(Nonmagnetic Coating on Steel)

set (5)

1362b Coating Thickness Standard 

(Nonmagnetic Coating on Steel)

set (5)

1363b Coating Thickness Standard 

(Nonmagnetic Coating on Steel)

set (5)

1364b Coating Thickness Standard 

(Nonmagnetic Coating on Steel)

set (5)

See Table 207.5 on the website for more information.

Microscale Dimensional 

Measurement Standards 

SRM 5001 is intended primarily for calibrating high 

accuracy two dimensional (X-Y) Photomask/Reticle 

registration metrology tools. In particular, this calibration 

artifact can also be used in the metrology tools capable 

of holding any artifact with these dimensions in need of 

a calibrated measurement field. An example of additional 

tools are defect inspection and classification tools, optical 

tools used in manufacture of flat panel displays or scanning 

electron microscopy tools used in photomask and wafer 

inspection. 

SRM Description

Unit of 

Issue

5001 Two-Dimensional Grid Photomask 

Standard

each

8820 Scanning Electron Microscope Scale 

Calibration Artifact

each

See Table 207.9 on the website for more information.

RM 8820. Optical microscope view of the 20 mm × 20 mm chip.

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of our Standard Reference Materials (SRMs)?

Join our mailing list to receive the SRM Spotlight newsletter which features information on 

our newly released SRMs, renewals and revisions. It also includes our exhibit schedule along 

with other helpful resources.

Sign up on our homepage at 

https://www.nist.gov/srm under SRM Spotlight.

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Standard Reference Materials

for Physical Properties 208 Liquids & Glasses

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Physical Properties 208 ■ Liquids & Glasses

Chemical Resistance [Durability] of 

Glass (solid form) 

This SRM is for checking test methods and calibrating 

equipment used to determine the resistance of glass 

containers to chemical attack. 

SRM Description

Unit of 

Issue

622 Soda-Lime-Silica Glass 2.2 kg

See Table 208.1 on the website for more information.

Electrical Properties of Dielectrics 

SRM 624 is intended to validate test methods and for 

calibrating equipment used to determine the dc volume 

resistivity of glass per ASTM C 657. 

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 GHz and 25 GHz. 

SRM Description

Unit of 

Issue

624 Lead-Silica Glass for dc Volume Resistivity 200 g

2870 Relative Permittivity and Loss Tangent 

1422 Cross-Linked Polystyrene

circularcylindrical 

puck

See Table 208.2 on the website for more information.

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.). 

SRM Description

Unit of 

Issue

717a Hi Boron Glass Viscosity block

See Table 208.3 on the website for more information.

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. 

SRM Description

Unit of 

Issue

1416 Aluminosilicate Glass for 

Liquidus Temperature

250 g

See Table 208.4 on the website for more information.

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 Description

Unit of 

Issue

709 Extra Dense Lead Glass block

717a Borosilicate Glass block

See Table 208.5 on the website for more information.

Relative Stress Optical Coefficient 

(bar form) 

SRM Description

Unit of 

Issue

709 Extra Dense Lead Glass block

See Table 208.6 on the website for more information.

Density 

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 

SRM Description

Unit of 

Issue

211d Toluene Liquid Density - Extended Range 4 x 5 mL

2214 Isooctane Liquid Density 4 x 5 mL

See Table 208.8 on the website for more information.

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Standard Reference Materials

for Physical Properties 209 X-Ray Diffraction

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Physical Properties 209 ■ X-Ray Diffraction

X-Ray Diffraction 

(powder and solid forms) 

SRMs 656, 676a, 674b, 1878b, and 1879b 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 a, the other high in b. SRMs 640e, 660c, 

675, and 1976b 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 1976b, 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 Kα ). SRM 1990 is certified for lattice parameter. SRM 

1994 is certified for mis-orientation of the crystal axis relative to the surface normal. 

SRM Description Unit of Issue

640e Line Position and Line Shape Standard for Powder Diffraction (Silicon Powder) 7.5 g

656 Silicon Nitride for Quantitative Analysis by Powder Diffraction 2 x 10 g

660c Line Position and Line Shape Standard for Powder Diffraction (Lanthanum Hexaboride Powder) 6 g

674b X-Ray Powder Diffraction Intensity Set (Quantitative Powder Diffraction Standard) 10 g

675 Line Position, Mica (XRD) 7.5 g

676a Alumina Powder for Quantitative Analysis by X-Ray Diffraction 20 g

1878b Respirable Alpha Quartz (Quantitative X-Ray Powder Diffraction Standard) 5 g

1879b Respirable Cristobalite 5 g

1976b Instrument Response Standard for X-Ray Powder Diffraction disc

1979 Powder Diffraction Line Profile Standard for Crystallite Size Analysis (Nano-Crystalline ZnO Powder) 2 x 3 g

1990 Single Crystal Diffractometer Alignment Standard - Ruby Sphere 3 spheres

1994 Standard Silicon Single Crystal Wafer for Crystalline Orientation 100-mm wafer

1995 Standard Sapphire Single Crystal Wafer for Crystalline Orientation 50-mm wafer

2000 Calibration Standard for High-Resolution X-Ray Diffraction block

2012 Calibration Standard for High-Resolution X-Ray Diffraction (200 mm Wafer) wafer

3600 Absolute Intensity Calibration Standard for Small-Angle X-Ray Scattering coupon

See Table 209.1 on the website for more information.

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Standard Reference Materials

for Engineering Materials 301 Sizing

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Engineering Materials 301 ■ Sizing

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 1961 is monodisperse latex particles in a water 

suspension produced by the National Aeronautics and Space 

Administration (NASA). SRM 1965 consists of two different 

groupings of particles mounted on a microscope slide.

RMs 8011, 8012, and 8013 are gold nanoparticles in water.

SRM Description

Unit of 

Issue

659 Particle Size Distribution Standard 

for Sedigraph Calibration

set (5)

1003c Glass Beads - Particle Size Distribution 28 g

1004b Glass Beads - Particle Size Distribution 43 g

1017b Glass Beads - Particle Size Distribution 

(100 μm to 400 μm diameter range)

70 g

1018b Glass (Particle Size) 87 g

1019b Glass (Particle Size) 200 g

1021 Glass ( Particle Size) 4 g

1690 Polystyrene Spheres 

(1 μm Diameter Particle Size)

5 mL

1691 Polystyrene Spheres 

(0.3 μm Diameter Particle Size)

5 mL

1961 Polystyrene Spheres 

(30 μm Diameter Particle Size)

5 mL

1963a Polystyrene Spheres 

(100 nm Diameter Particle Size)

5 mL

1964 Polystyrene Spheres 

(60 nm Diameter Particle Size) 

5 mL

1965 Microsphere Slide 

(10 μm Polystyrene Spheres)

slide

SRM Description

Unit of 

Issue

1978 Particles Size Distribution Standard 

for Gravity Sedimentation

5 g

1982 Zirconia Thermal Spray Powder - 

Particle Size Distribution

10 g

1984 Thermal Spray Powder - Particle Size 

Distribution Tungsten Carbide/Cobalt 

(Acicular)

14 g

1985 Thermal Spray Powder - Particle Size 

Distribution Tungsten Carbide/Cobalt 

(Spheroidal)

14 g

8010 Sand for Sand Sieve Analysis 3 x 150 g

8011 Gold Nanoparticles, 

Nominal 10 nm Diameter

2 x 5 mL

8012 Gold Nanoparticles, 

Nominal 30 nm Diameter

2 x 5 mL

8013 Gold Nanoparticles, 

Nominal 60 nm Diameter

2 x 5 mL

8988 Titanium Dioxide Powder - 

Particle Size Distribution

6 g

See Table 301.1 on the website for more information.

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301 ■ Sizing Engineering Materials

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 5 g 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 

5 g of cement. 

SRM Description

Unit of 

Issue

46h Portland Cement Fineness Standard 10 x 5 g

114q Portland Cement Fineness Standard 20 vials

2689 Coal Fly Ash 3 x 10 g

2690 Coal Fly Ash 3 x 10 g

2691 Coal Fly Ash 3 x 10 g

See Table 301.2 on the website for more information.

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. 

SRM Description

Unit of 

Issue

1980 Positive Electrophoretic (+μE) 

Mobility Standard

500 mg/L

See Table 301.3 on the website for more information.

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. 

SRM Description

Unit of 

Issue

1898 Titanium Dioxide Nanomaterial 15 g

1900 Specific Surface Area Standard 4 g

1917 Mercury Porosimetry Standard 10 g

2206 Controlled Pore Glass - BET Specific 

Surface Area (300 nm)

5 g

2207 Controlled Pore Glass - 

BET Specific Surface Area 

(Nominal Pore Diameter 18 nm)

5 g

2696 Silica Fume 70 g

See Table 301.4 on the website for more information.

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 2806b 

is certified for particle concentration and projected area 

diameter. It consists of a polydisperse, irregularly-shaped 

mineral dust suspended in 5606 hydraulic fluid. RMs 8631a 

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 2806b and RM 8631a, and is a 

derivative of Arizona Road Dust. 

SRM Description

Unit of 

Issue

2806b Medium Test Dust (MTD) in Hydraulic Fluid 2 x 400 mL

8631a Medium Test Dust (MTD) 20 g

8632 Ultra Fine Test Dust (UFTD) 20 g

See Table 301.5 on the website for more information.

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Please Register Your SRM Online!

Registering will ensure that you will be notified of 

any technical updates or developments.

https://www.nist.gov/srm_reg

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Standard Reference Materials

for Engineering Materials 302 Surface Finish

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Engineering Materials 302 ■ Surface Finish

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. 

SRM Description

Unit of 

Issue

1893 Copper Microhardness Test Block (Knoop) each

1894a Vickers Microhardness of Copper each

1895 Nickel Microhardness Test Block (Knoop) each

1896b Vickers Microhardness of Nickel each

1905 Nickel Microhardness Test Block (Knoop) each

1906 Nickel Microhardness Test Block (Knoop) each

1907 Nickel Microhardness Test Block (Knoop) each

1908 Vickers Microhardness of Nickel each

1909 Vickers Microhardness of Nickel each

2798a Vickers Microhardness of Nickel each

2828 Knoop Microhardness of Steel each

2829 Vickers Microhardness of Steel each

2830 Knoop Hardness of Ceramics each

2831 Vickers Hardness of Ceramics 

and Hardmetals

each

See Table 302.1 on the website for more information.

Abrasive Wear 

(block form) 

This SRM is for use in the dry sand/rubber wheel abrasion 

test per ASTM G 65, Procedure A. 

SRM Description Unit Size

1857 Tool Steel for Abrasive Wear Standard 2 blocks

See Table 302.2 on the website for more information.

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. 

SRM Description

Unit of 

Issue

2073a Sinusoidal Roughness Specimen each

2074 Sinusoidal Roughness Specimen each

2075 Sinusoidal Roughness Specimen each

See Table 302.4 on the website for more information.

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. 

SRM Description

Unit of 

Issue

2810 Rockwell C Hardness - Low Range 1 block

2811 Rockwell C Hardness - Mid Range 1 block

2812 Rockwell C Scale Hardness - High Range 1 block

2816 Rockwell Hardness 15N Scale - Low Range 

(Nominal 72 HR15N)

1 block

2817 Rockwell Hardness 15N Scale - Mid Range 

(Nominal 83 HR15N)

1 block

2818 Rockwell Hardness 15N Scale - High Range 

(Nominal 91 HR15N)

1 block

2819 Rockwell Hardness 30N Scale - Low Range 

(Nominal 45 HR30N)

1 block

2820 Rockwell Hardness 30N Scale - Mid Range 

(Nominal 64 HR30N)

1 block

2821 Rockwell Hardness 30N Scale - High Range 

(Nominal 79 HR30N)

1 block

See Table 302.5 on the website for more information.

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Standard Reference Materials

for Engineering Materials 305 Fire Research

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Engineering Materials 305 ■ Fire Research

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. 

SRM Description

Unit of 

Issue

1012 Flooring Radiant Panel set (3)

See Table 305.4 on the website for more information.

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 Description

Unit of 

Issue

1082 Cigarette Ignition Strength Standard

(200 cigarettes)

1 carton

1196 Standard Cigarette for Ignition 

Resistance Testing (400 cigarettes)

2 cartons

See Table 305.5 on the website for more information.

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Standard Reference Materials

for Engineering Materials 308 Nanomaterials

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Engineering Materials 308 ■ Nanomaterials

Nanomaterials 

(less than or equal to 100 nm) 

SRM Description

Unit of 

Issue

1898 Titanium Dioxide Nanomaterial 15 g

1963a Polystyrene Spheres 

(Nominal 100 nm Diameter)

5 mL

1964 Polystyrene Spheres 

(Nominal 60 nm Diameter)

5 mL

2483 Single-Wall Carbon Nanotubes (Raw Soot) 250 mg

2484 Multiwall Carbon Nanotubes (Raw Soot) 6 g

8011 Gold Nanoparticles, 

Nominal 10 nm Diameter

2 x 5 mL

8012 Gold Nanoparticles, 

Nominal 30 nm Diameter

2 x 5 mL

8013 Gold Nanoparticles, 

Nominal 60 nm Diameter

2 x 5 mL

8017 Polyvinylpyrrolidone Coated Silver 

Nanoparticles (Nominal Diameter 75 nm)

5 vials

8027 Silicon Nanoparticles 

(Nominal Diameter 2 nm)

5 x 1.0 mL

8281 Single-Wall Carbon Nanotubes (Dispersed, 

Three Length-Resolved Populations)

4 x 2.5 mL

See Table 308.1 on the website for more information.

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Standard Reference Materials

for Engineering Materials 309 Miscellaneous Performance 

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Engineering Materials 309 ■ Miscellaneous Performance 

Impact Standards: Charpy V-Notch 

Specimens 

These SRMs are test specimens intended primarily for the 

verification of Charpy 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 -40 °C 

and room temperature and for maximum force at room 

temperature. These SRMs provide a means to verify the 

performance of both 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. An 

acceptable machine will produce an average value within 

1.4 J or 5 % of the certified energy value, whichever is 

greater. Currently, specific requirements are not available to 

verify the performance of the force scale for a Charpy test 

machine.

SRMs 2216, 2218, and 2219 are intended for the verification 

of maximum force and absorbed energy values measured 

at room temperature using a small-scale Charpy impact 

machine, in accordance with the current standards ASTM 

E2248 or ISO 14556. Each SRM unit consists of a set of 

three KLST-type specimens needed to perform a single 

verification.

SRM Description

Unit of 

Issue

2092 Low-Energy Charpy V-Notch Impact 

Specimens (NIST-Verification, 8-mm 

Striker) 

set

2093 Low-Energy Charpy V-Notch Impact 

Specimens (Self-Verification, 8-mm 

Striker) 

set

2096 High-Energy Charpy V-Notch Impact 

Specimens (NIST-Verification, 8-mm 

Striker)

set

2097 High-Energy Charpy V-Notch Impact 

Specimens (Self-Verification, 8-mm 

Striker) 

set

2098 Super High-Energy Charpy V-Notch 

Impact Specimen (NIST-Verification)

set

2112 Dynamic Impact Force Verific Specimens 

(Self-Verification, 8-mm Striker, 24 kN 

nominal)

set

2113 Dynamic Impact Force Verification 

Specimens (Self-Verification, 8-mm 

Striker, 33 kN nominal)

set

2197 Low-Energy Charpy V-Notch Specimens 

(Self-Verification, 2-mm Striker)

set

2198 High-Energy Charpy V-Notch Specimens 

(Self-Verification, 2-mm Striker)

set

2216 Miniaturized Low Energy Charpy, 

V-Notch KLST Impact Specimen

set

2218 Miniaturized Hi Energy Charpy, 

V-Notch KLST Impact Specimen

set

2219 Miniaturized Super High Energy, 

Charpy V-Notch KLST Impact Specimen

set

See Table 309.1 on the website for more information.

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309 ■ Miscellaneous Performance Engineering Materials

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. 

SRM Description

Unit of 

Issue

1810a Linerboard 50 each

See Table 309.4 on the website for more information.

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.

SRM Description

Unit of 

Issue

8495 Northern Softwood 10 sheets

8496 Eucalyptus Hardwood 10 sheets

See Table 309.5 on the website for more information.

Healthcare Equipment Standards 

SRM Description

Unit of 

Issue

2087 Dimensional Standard for Medical 

Computed Tomography

each

2088 Density Standard for Medical 

Computed Tomography

five foam 

blocks

See Table 309.10 on the website for more information.

Fracture Toughness of Ceramics 

SRMs 2100a and 2100b Fracture Toughness of Ceramic 

are 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 SRMs 2100a or 2100b 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.

SRM Description

Unit of 

Issue

2100a Fracture Toughness of Ceramic 5 bars

2100b Fracture Toughness of Ceramic 5 bars

See Table 309.7 on the website for more information.

SRM 2087 Dimensional Standard for Medical Computed Topography

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Engineering Materials 309 ■ Miscellaneous Performance 

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. 

SRM Description

Unit of 

Issue

762 Magnetic Moment Standard - Nickel Disk 6 mm

764a Magnetic Susceptibility Standard - 

Platinum Cylinder

3 mm x 

3.42 mm

772a Magnetic Moment Standard - Nickel Sphere each

See Table 309.8 on the website for more information.

Standard Bullet and Cartridge Case 

SRM Description

Unit of 

Issue

2460 Standard Bullet each

2461 Standard Cartridge Case each

See Table 309.11 on the website for more information.

Microelectromechanical Systems 

(MEMS) 

The MEMS 5-in-1 RM is a single test chip with test 

structures for the measurement of dimensional and material 

properties with the use of five documentary standard test 

methods (from which its name is derived). To validate 

the use of the test methods, companies can compare their 

measurements with NIST measurements on the same test 

structures. The MEMS Calculator (https://srdata.nist.gov/

gateway/ with the keyword “MEMS Calculator”) can be used 

for the calculations. 

The five test methods are for measuring Young’s modulus, 

residual strain, strain gradient, step height, and in-plane 

length. Eight properties are reported; the five mentioned plus 

residual stress, stress gradient, and beam thickness. Residual 

stress and stress gradient are obtained from calculations 

given in the Young’s modulus test method. Beam thickness is 

obtained using the step height test method (as described in 

NIST SP 260-177). Therefore, five test methods are used to 

obtain the reported eight properties. 

The instruments used for the MEMS 5-in-1 measurements 

are: 

• an optical vibrometer, stroboscopic interferometer, 

or comparable instrument for the measurement of 

Young’s modulus, and 

• an interferometric microscope and/or stylus 

profilometer or comparable instrument(s) for the 

measurement of residual strain, strain gradient, step 

height, in-plane length, and thickness. 

There are two types of chips (RM 8096 and RM 8097). RM 8096 

was fabricated on a multi-user 1.5μm complementary metal 

oxide semiconductor (CMOS) process followed by a bulkmicromachining etch. The supply of RM 8096 is limited. 

RM 8097 was fabricated using a polysilicon multi user 

surface micromachining MEMS process with a backside 

etch.  

Additional information is available on the website. 

Email mems-support@nist.gov for further assistance. 

SRM Description

Unit of 

Issue

8096 CMOS MEMS 5-in-1 Test Chip 1 computer 

chip

8097 MEMS 5-in-1 Test Chip 1 computer 

chip

See Table 309.12 on the website for more information.

RM 8096 - CMOS MEMS 5-in-1 Test Chip

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SRM Descriptor .............................................................Page # 

1d Limestone, Argillaceous..................................................... 46

4l Cast Iron................................................................................. 5

5m Cast Iron................................................................................. 5

6g Cast Iron................................................................................. 5

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

16f Basic Open- Hearth Steel, 1 % carbon ............................... 2

17f Sucrose Optical Rotation ..............................................14,66

18 Cr-10 Ni Steel (AISI 304L) (powder form)........................ 4

19h Basic Electric Steel, 0.2 % Carbon ...................................... 2

20g AISI 1045 Steel ...................................................................... 2

23c Stainless Steel, Cr-Ni-Nb (AISI 348).................................. 4

25d Manganese Ore.................................................................... 46

30f Cr-V Steel (SAE 6150).......................................................... 2

32e Nickel-Chromium Steel (SAE 3140).................................. 2

33e Nickel Steel............................................................................. 2

36b Chromim-Molybdenum Steel............................................. 2

39j Benzoic Acid (Calorimetric Standard) ............................ 62

45d Copper Secondary Freezing Point.................................... 63

46h Portland Cement Fineness Standard................................ 83

49e Lead Secondary Freezing Point Standard........................ 63

50c Tungsten-Chromium-Vanadium Steel............................... 4

53e Lead-Base Bearing Metal (84Pb-10Sb-6Sn)...................... 9

54d Bearing Metal (Tin Base)................................................... 10

57b Silicon Metal.......................................................................... 4

58a Ferrosilicon (73 % Si Regular Grade)................................. 4

59a Ferrosilicon............................................................................ 4

64c Ferrochromium, High Carbon............................................ 4

68c High-Carbon Ferromanganese ........................................... 4

69b Bauxite (Arkansas).............................................................. 46

70b Potassium Feldspar............................................................. 46

72g Low Alloy Steel (AISI 4130) ................................................ 2

76a Burnt Refractory (Al2O3-40%).......................................... 46

77a Burnt Refractory (Al2O3-60%).......................................... 46

78a Burnt Refractory (Al2O3-70%).......................................... 46

79a Fluorspar.............................................................................. 46

80a Soda-Lime Glass ................................................................. 50

81a Glass Sand......................................................................46, 50

82b Nickel-Chromium Cast Iron............................................... 5

84L Potassium Hydrogen Phthalate......................................... 14

87a Silicon-Aluminum Alloy...................................................... 8

88b Dolomitic Limestone.......................................................... 46

89 Glass, Lead Barium............................................................. 50

90 Ferrophosphorus................................................................... 4

92 Soda-Lime Glass (Low Boron).......................................... 50

93a Borosilicate Glass................................................................ 50

94c Zinc-Base Alloy (Die Casting).......................................... 10

95 1-Nitropyrene in Methylene Chloride ............................. 38

97b Flint Clay.............................................................................. 46

98b Plastic Clay........................................................................... 46

99b Soda Feldspar ...................................................................... 46

100b Manganese Steel.................................................................... 2

101g Stainless Steel (AISI 304L) (powder form)........................ 4

107c Cast Iron (Ni-Cr-Mo)........................................................... 5

114q Portland Cement Fineness Standard................................ 83

115a Copper-Nickel-Chromium Cast Iron ................................ 5

120c Phosphate Rock (Florida)............................................43, 46

122i Cast Iron................................................................................. 5 

123c Stainless Steel, Cr-Ni-Nb (AISI 348).................................. 4

125b LA Steel, High Silicon........................................................... 2

126c High-Nickel Steel (36 % Ni)................................................ 3

SRM Descriptor .............................................................Page # 

127b Solder (40Sn—60Pb)............................................................ 9

129c LA Steel, High Sulfur (SAE 112)......................................... 2

131h Refined Cast Iron.................................................................. 2

132b Tool Steel (AISI M2)............................................................. 4

133b Chromium-Molybdenum Steel........................................... 4

134a Molybdenum-Tungsten-Chromium-Vanadium Steel ..... 4

136f Potassium Dichromate, 

 (Oxidimetric Standard).................................................... 14

139b Chromium-Nickel-Molybdenum Steel.............................. 2

141d Acetanilide ........................................................................... 14

143d Cystine.................................................................................. 14

148 Nicotinic Acid ..................................................................... 14

152a Basic Open-Hearth Steel 0.5 % Carbon 

 (Tin Bearing)....................................................................... 2

154c Titanium Dioxide..........................................................14, 46

155 Chromium-Tungsten Steel .................................................. 2

158a Silicon Bronze........................................................................ 8

160b Stainless Steel (Cr 18-Ni 12-Mo 2) (AISI 316).................. 4

163 Chromium Steel .................................................................... 2

165a Glass Sand .....................................................................46, 50

166c Stainless Steel, Low-Carbon (AISI 316L)........................... 4

173c Titanium Alloy (6Al-4V)................................................... 10

178 0.4C Basic Oxygen Furnace Steel........................................ 2

179 LA Steel, High Silicon........................................................... 2

180 Fluorspar, High Grade........................................................ 46

181 Lithium Ore (Spodumene)................................................ 46

182 Lithium Ore (Petalite)........................................................ 46

183 Lithium Ore (Lepidolite) ................................................... 46

185i Potassium Hydrogen Phthalate......................................... 58

186g Disodium Hydrogen Phosphate (186-II-g)

187e Sodium Tetraborate (Borax), pH...................................... 58

188 Potassium Hydrogen Tartrate............................................ 58

189c Potassium Tetroxalate Dihydrate...................................... 58

191d pH Standard

 Sodium Bicarbonate (191d-I)

 Sodium Carbonate (191d-II)........................................... 58 

193 Potassium Nitrate................................................................ 43

194a Ammonium Dihydrogen Phosphate................................ 43

195 Ferrosilicon (75 % Si-HP Grade)........................................ 4

196 Ferrochromium, (Low-Carbon) ......................................... 4

198 Silica Brick ........................................................................... 46

199 Silica Brick ........................................................................... 46

200b Potassium Dihydrogen Phosphate, (KH2PO4) .............. 43

211d Toluene Liquid Density - Extended Range...................... 78

277 Tungsten Concentrate ........................................................ 46

278 Obsidian Rock..................................................................... 46

291 Cr-Mo Steel (ASTM A-213) ................................................ 2

293 Cr-Ni-Mo (AISI 8620).......................................................... 2

330a Copper Ore Mill Heads...................................................... 46

331a Copper Ore Mill Tails......................................................... 46

333a Molybdenum Sulfide Concentrate.................................... 46

334 Gray Cast Iron....................................................................... 5

339 17 Chromium-9 Nickel-0.2 Selenium Steel....................... 4

341 Ductile Cast Iron................................................................... 5

342a Nodular Cast Iron................................................................. 5

343a Stainless Steel (AISI 431) ..................................................... 4

344 15 Chromium-7 Nickel Steel 

 (Mo Precipitation Hardening)........................................... 3

345b Fe-Cr-Ni Alloy UNS J92180 (chip form)........................... 3

346a Valve Steel .............................................................................. 3

349a Waspaloy ................................................................................ 9

350c Benzoic Acid (Acidimetric)............................................... 14

351a Sodium Carbonate.............................................................. 14

Numerical Index

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Numerical Index

SRM Descriptor .............................................................Page # 

360b Zirconium (Sn-Fe-Cr) Alloy ............................................. 10

361 AISI 4340 Steel ...................................................................... 2

363 Chromium-Vanadium Steel (Modified)............................ 2

364 LA Steel, High C (Modified) ............................................... 2

368 Carbon Steel (AISI 1211)..................................................... 2

399 Unalloyed Copper - Cu VI .................................................. 9

400 Unalloyed Copper - Cu VII................................................. 9

423 Molybdenum Oxide Concentrate..................................... 46

454 Unalloyed Copper XI (chips).............................................. 9

457 Unalloyed Copper IV (solid)............................................... 9

458 Beryllium-Copper (17510).................................................. 8

459 Beryllium-Copper (17200).................................................. 8

460 Beryllium-Copper Alloy ...................................................... 8

480 Tungsten 20 % - Molybdenum Alloy 

 Electron Microprobe Standard........................................ 12

481 Gold-Silver Wires for Microprobe Analysis.................... 12

482 Gold-Copper Wires for Microprobe Analysis ................ 12

494 Unalloyed Copper I (solid).................................................. 9

495 Unalloyed Copper II (solid) ................................................ 9

498 Unalloyed Copper V (solid)................................................ 9

499 Unalloyed Copper VI (solid)............................................... 9

500 Unalloyed Copper - Cu VII................................................. 9

600 Bauxite, Australian-Darling Range................................... 46

607 Potassium Feldspar............................................................. 46

610 Trace Elements in Glass..................................................... 50

611 Trace Elements in Glass..................................................... 50

612 Trace Elements in Glass..................................................... 50

613 Trace Elements in Glass..................................................... 50

614 Trace Elements in Glass..................................................... 50

616 Trace Elements in Glass..................................................... 50

617 Trace Elements in Glass..................................................... 50

620 Soda Lime, Flat.................................................................... 50

622 Soda-Lime-Silica Glass....................................................... 78

624 Lead-Silica Glass for dc Volume Resistivity .................... 78

625 Spectrographic Zinc-Base Die-Casting Alloy A............. 10

626 Spectrographic Zinc-Base Die-Casting Alloy B.............. 10

627 Spectrographic Zinc-Base Die-Casting Alloy C............. 10

628 Spectrographic Zinc-Base Die-Casting Alloy D............. 10

629 Spectrographic Zinc-Base Die-Casting Alloy E.............. 10

630 Spectrographic Zinc-Base Die-Casting Alloy F.............. 10

631 Spectrographic Zinc Spelter (Modified).......................... 10

633a Portland Cement................................................................. 52

634a Portland Cement................................................................. 52

635a Portland Cement (Blended with Slag) ............................. 52

640e Shape Standard for Powder Diffraction 

 (Silicon Powder)................................................................ 80

641 Spectroscopic Titanium-Base Standards 

 Titanium Alloy, 8 Mn (A)................................................ 10

642 Spectroscopic Titanium-Base Standards 

 Titanium Alloy, 8 Mn (B) ................................................ 10

643 Spectroscopic Titanium-Base Standards 

 Titanium Alloy, 8 Mn (C)................................................ 10

647 Titanium Alloy, Al-Mo-Sn-Zr........................................... 10

648 Titanium-Base Alloy (5Al-2Sn-2Zr-4Cr-4Mo) .............. 10

649 Titanium-Base Alloy (15V-3Al-3Cr-3Sn) ....................... 10

650 Unalloyed Titanium A........................................................ 10

654b Titanium Alloy, Al-V.......................................................... 10

656 Silicon Nitride for Quantitative Analysis 

 by Powder Diffraction...................................................... 80

659 Particle Size Distribution Standard for 

 Sedigraph Calibration ...................................................... 82

660c Line Position and Line Shape Standard for 

 Powder Diffraction (Lanthanum Hexaboride Powder)... 80

SRM Descriptor .............................................................Page # 

663 Chromium-Vanadium Steel (Modified)............................ 3

665 Electrolytic Iron .................................................................... 3

670 Rutile Ore............................................................................. 46

674b X-diffraction Intensity Set ................................................. 80

675 Line Position, Mica (XRD)................................................ 80

676a Alumina Powder for Quantitative Analysis 

 by X-ray Diffraction ......................................................... 80

679 Brick Clay............................................................................. 46

682 High-Purity Zinc................................................................. 14

683 Zinc, Metal........................................................................... 14

685r High Purity Gold (rod)...................................................... 14

688 Basalt Rock .......................................................................... 46

689 Ferrochromium Silicon........................................................ 4

690 Iron Ore Canada ................................................................. 46

691 Iron Oxide, Reduced........................................................... 46

692 Iron Ore, Labrador.............................................................. 46

693 Iron Ore (Nimba)................................................................ 46

694 Phosphate Rock, Western .............................................43,46

695 Trace Elements in Multi-Nutrient Fertilizer................... 43

696 Bauxite, Surinam................................................................. 46

697 Bauxite, Dominican............................................................ 46

698 Bauxite, Jamaican................................................................ 46

699 Alumina (Reduction Grade) ............................................. 46

705a Polystyrene 

 (Narrow Molecular Weight Distribution) ...............60, 62

706a Polystyrene (Broad Molecular Mass Distribution)......... 60

709 Extra Dense Lead Glass...................................................... 78

717a Hi Boron Glass Viscosity ................................................... 78

720 Sapphire Heat Capacity...................................................... 62

723e Tris Acidimetric .................................................................. 14

728 Intermediate-Purity Zinc (pin)......................................... 14

731L1 Borosilicate Glass - Thermal Expansion.......................... 63

731L2 Borosilicate Glass - Thermal Expansion.......................... 63

731L3 Borosilicate Glass - Thermal Expansion.......................... 63

740a Zinc Freezing Point Standard 419.527 °C........................ 62

741a Tin Freezing-Point Standard............................................. 62

742 Aluminum Oxide Pyrometric Standard .......................... 63

762 Magnetic Moment Standard - Nickel Disk...................... 94

764a Magnetic Susceptibility Standard - Platinum Cylinder. 94

772a Magnetic Moment Standard - Nickel Sphere .................. 94

781D2 Molybdenum - Heat Capacity........................................... 62

853a Aluminum Alloy 3004.......................................................... 8

854a Aluminum Alloy 5182.......................................................... 8

855a Aluminum Casting Alloy 356 ............................................. 8

856a Aluminum Casting Alloy 380 ............................................. 8

858 Aluminum Alloy 6011.......................................................... 8

861 Nickel-based Superalloy PWA 1484 (chip form).............. 9

862 High-Temperature Alloy L 605........................................ 3,8

864 Inconel 600............................................................................. 9

865 Inconel 625............................................................................. 9

866 Incoloy® 800 ........................................................................... 3

867 Ni-Fe-Cr Alloy UNS N08825 (chip form)......................... 3

868 High-Temperature Alloy (Fe-Ni-Co) ................................ 3

869b Column Selectivity Test Mixture

 for Liquid Chromatography ............................................ 38

870 Column Performance Test Mixture

 for Liquid Chromatography ............................................ 38

871 Phosphor Bronze (CDA 521).............................................. 8

872 Phosphor Bronze (CDA 544).............................................. 8

874 Cupro-Nickel, 10 % (CDA 706) “HIGH-PURITY” ......... 8

875 Cupro-76t5Nickel, 10 % (CDA 706) “DOPED”................ 8

880 Nickel Silver (CDA 770)....................................................... 8

882 Nickel-Copper Alloy (65Ni-31Cu-3Al)............................. 9

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Numerical Index

SRM Descriptor .............................................................Page # 

885 Refined Copper (pin form)................................................ 14

886 Refractory Gold Ore........................................................... 46

887 Cemented Carbide (W-83,Co-10).................................... 50

888 Cemented Carbide (W-64,Co-25,Ta-5)........................... 50

889 Cemented Carbide (W-75,Co-9,Ta-5,Ti-4)..................... 50

892 High-Alloy White Cast Iron (Ni-Hard, Type IV)............. 5

893 Stainless Steel (SAE 405)...................................................... 4

895 Stainless Steel (SAE 201)...................................................... 4

897 Tracealloy A........................................................................... 9

899 Tracealloy C........................................................................... 9

900a Antiepilepsy Drugs in Frozen Human Serum ................ 20

909c Frozen Human Serum...................................................20,21

911c Cholesterol........................................................................... 20

912a Urea-Clinical ....................................................................... 20

913b Uric Acid.............................................................................. 20

914a Creatinine ............................................................................ 20

915b Calcium Carbonate (Clinical Standard).......................... 20

916a Bilirubin ............................................................................... 20

917c D-Glucose (Dextrose)...................................................14,20

918c Potassium Chloride (Clinical)........................................... 20

919b Sodium Chloride (Clinical)............................................... 20

920 D-Mannitol.......................................................................... 20

921 Cortisol (Hydrocortisone)................................................. 20

924a Lithium Carbonate ............................................................. 20

927e Bovine Serum Albumin (7 %, solution).....................20, 21

928 Lead Nitrate (Clinical) ....................................................... 20

929a Magnesium Gluconate ....................................................... 20

931h Liquid Absorbance Filters, UV-VIS ................................. 66

935a Potassium Dichromate (Ultraviolet

 Absorbance Standard)...................................................... 66

937 Iron Metal (Clinical Standard).......................................... 20

951a Boric Acid Isotopic Standard ............................................ 16

952 Enriched Boric Acid Standard  ......................................... 16

953 Neutron Density Monitor Wire ........................................ 68

955c Toxic Metals in Caprine Blood.......................................... 20

956d Electrolytes in Frozen Human Serum.........................20,21

965b Glucose in Frozen Human Serum ...............................20,21

967a Creatinine in Frozen Human Serum...........................20,21

968e Fat-Soluble Vitamins, Carotenoids, and

 Cholesterol in Human Serum ....................................20,21

971 Hormones in Frozen Human Serum...........................20,21

972a Vitamin D Metabolites in Frozen Human Serum .....20,21

973 Boric Acid Acidimetric Standard.................................14,16

975a Isotopic Standard for Chlorine.......................................... 16

977 Isotopic Standard for Bromine.......................................... 16

978a Assay-Isotopic Standard for Silver.................................... 16

979 Chromium Isotopic Standard............................................ 16

980 Isotopic Standard for Magnesium .................................... 16

981 Common Lead Isotopic Standard (wire)......................... 16

982 Equal-Atom Lead Isotopic Standard (wire) .................... 16

983 Radiogenic Lead Isotopic Standard (wire)...................... 16

984 Rubidium Chloride............................................................. 16

986 Isotopic Standard for Nickel.............................................. 16

987 Strontium Carbonate Isotopic Standard.......................... 16

994 Isotopic Standard for Gallium........................................... 16

997 Thallium Isotopic Standard ............................................... 16

998 Angiotensin I (Human)...................................................... 20

999c Potassium Chloride Primary Standard

 (Dried at 500 ° C) ............................................................. 14

1003c Glass Beads - Particle Size Distribution........................... 82

1004b Glass Beads - Particle Size Distribution........................... 82

1010a Microcopy Resolution Test Charts................................... 66

1012 Flooring Radiant Panel....................................................... 88

SRM Descriptor .............................................................Page # 

1017b Glass Beads - Particle Size Distribution 

 (100 μm to 400 μm diameter range)............................... 82

1018b Glass (Particle Size) ............................................................ 82

1019b Glass (Particle Size) ............................................................ 82

1021 Glass ( Particle Size) ........................................................... 82

1034 Unalloyed Copper................................................................. 8

1035 Leaded-Tin Bronze Alloy..................................................... 8

1082 Cigarette Ignition Strength Standard (200 cigarettes) ... 88

1083 Wear-Metals in Lubricating Oil  ....................................... 54

1085c Wear Metals in Lubricating Oil......................................... 54

1089† Steels, Set (consists of SRMs 1095, 1096, 

 1097, 1098 and 1099).......................................................... 5

1090 Oxygen in Ingot Iron............................................................ 5

1091a Oxygen in Stainless Steel (AISI 431).................................. 5

1093 Oxygen in Valve Steel ........................................................... 5

1094 Oxygen in Maraging Steel.................................................... 5

1107 Naval Brass UNS 46400........................................................ 8

1110 Red Brass B ............................................................................ 8

1111 Red Brass Standard............................................................... 8

1112 Gilding Metal......................................................................... 8

1113 Gilding Metal......................................................................... 8

1114 Gilding Metal......................................................................... 8

C1114 Gilding Metal C (block)....................................................... 8

1115 Commercial Bronze Standard for Optical 

 Emission and X-ray Spectroscopic Analysis................... 8

C1115 Commercial Bronze A (block)............................................ 8

1116 Commercial Bronze Standard for Optical 

 Emission and X-ray Spectroscopic Analysis................... 8

1117 Commercial Bronze Standard for Optical 

 Emission and X-ray Spectroscopic Analysis................... 8

C1117 Commercial Bronze C (block)............................................ 8

1124 Free Cutting Brass (UNS C36000)...................................... 8

1128 Titanium -Base Alloy (15V-3Al-3Cr-3Sn) ...................... 10

1129 Solder (63Sn—37Pb)............................................................ 9

1131 Solder (40Sn—60Pb)............................................................ 9

1132 Lead-Base Bearing Metal (84Pb - 10Sb - 6Sn).................. 9

1134 LA Steel, High Silicon........................................................... 3

1135 LA Steel, High Silicon........................................................... 3

C1137a White Cast Iron..................................................................... 5

1138a Cast Steel Standard ............................................................... 5

1139a Cast Steel Standard ............................................................... 5

C1145a White Cast Iron..................................................................... 5

C1151a Stainless Steel 23Cr-7Ni ....................................................... 4

C1152a Stainless Steel 18Cr-11Ni..................................................... 4

C1153a Stainless Steel 17Cr-9Ni ....................................................... 4

C1154a Stainless Steel 19Cr-13Ni..................................................... 4

1155a Stainless Steel (Cr 18 Ni 12, Mo 2) ..................................... 4

1157 Tool Steel (AISI M2)............................................................. 4

1158 High-Nickel Steel  (36 % Ni)............................................... 4

1159 Electronic and Magnetic Alloy Standard........................... 9

1160 Elec/Mag Ni-Mo-Fe.............................................................. 9

1171 Stainless Steel Cr 17-Ni 11-Ti 0.3 (AISI 321).................... 4

1172 Stainless Steel Cr 17-Ni 11-Nb 0.6 (AISI 348).................. 4

1173 Ni-Cr-Mo-V Steel ................................................................. 5

C1173 Cast Steel 3............................................................................. 5

1196 Standard Cigarette for Ignition

 Resistance Testing (400 cigarettes)................................. 88

1216 Carbon Modified Silica ...................................................... 27

1218 LA Steel, High Silicon........................................................... 3

1219 Cr16-Ni2 (AISI 431)............................................................. 4

1223 Chromium Steel .................................................................... 4

1224 LA Steel, Carbon (AISI 1078).............................................. 3

1225 LA Steel (AISI 4130)............................................................. 3

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Numerical Index

SRM Descriptor .............................................................Page # 

1226 LA Steel .................................................................................. 3

1227 LA Steel, Basic Open Hearth, 1 % C................................... 3

1228 LA Steel, 0.1 % C................................................................... 3

1230 High-Temperature Alloy A286 (disk form) ...................... 3

1240c Aluminum Alloy 3004.......................................................... 8

1241c Aluminum Alloy 5182.......................................................... 8

1242 High Temperature Alloy L 605............................................ 8

1243 Ni-Cr-Co Alloy UNS N07001 (disk form)........................ 9

1244 Inconel 600............................................................................. 9

1246 Incoloy® 800 ........................................................................... 3

1247 Ni-Fe-Cr Alloy UNS N08825 (disk form)......................... 3

C1248 Nickel-Copper Alloy ............................................................ 9

1249 Ni-Cr-Fe-Nb-Mo Alloy UNS N077178 (disk form) ........ 9

C1251a Phosphorus Deoxidized Copper - Cu VIII ....................... 9

C1252a Phosphorus Deoxidized Copper - Cu IX........................... 9

C1253a Phosphorus Deoxidized Copper - Cu X............................ 9

1250 High-Temperature Alloy Fe-Ni-Co.................................... 3

1255b Aluminum Alloy 356............................................................ 8

1256b Aluminum Alloy 380............................................................ 8

1258-I Aluminum Alloy 6011.......................................................... 8

1259 Aluminum Alloy 7075.......................................................... 8

1264a LA Steel, High Carbon (Modified)..................................... 3

1265a Electrolytic Iron .................................................................... 3

1269 Line Pipe (AISI 1526 Modified).......................................... 3

1270 LA Steel, Cr-Mo (A336) (F-22)........................................... 3

1271 LA Steel (HSLA-100)............................................................ 3

1276a Cupro-Nickel (CDA 715)..................................................... 8

C1285 LA Steel (A242) (Modified)................................................. 3

1286 Low Alloy Steel (HY 80) ...................................................... 3

C1290 High-Alloy White Cast Iron (HC-250+V)........................ 5

C1291 High-Alloy White Cast Iron (Ni-Hard, Type I)................ 5

C1292 High-Alloy White Cast Iron I (Ni-Hard, Type IV).......... 5

1295 Stainless Steel (SAE 405)...................................................... 4

C1296 Stainless Steel......................................................................... 4

1297 Stainless Steel (SAE 201)...................................................... 4

1358b Coating Thickness Standard, ............................................ 75

1359b Coating Thickness Standard ............................................. 75

1361b Coating Thickness Standard ............................................. 75

1362b Coating Thickness Standard ............................................. 75

1363b Coating Thickness Standard ............................................. 75

1364b Coating Thickness Standard ............................................. 75

1400 Bone Ash.............................................................................. 20

1411 Soft Borosilicate Glass........................................................ 50

1412 Multicomponent Glass....................................................... 50

1413 High Alumina Sand.......................................................46,50

1416 Aluminosilicate Glass for .................................................. 78

1449 Thermal Resistance - Fumed Silica Board....................... 63

1450d Thermal Conductivity, Fibrous Glass Board................... 63

1452 Thermal Resistance - Fibrous Glass Blanket 

 for High Precision Measurements.................................. 63

1453 Thermal Conductivity - Expanded Polystyrene Board.. 63

1457 Superconducting Critical Current - Nb Ti Wire ............ 72

1459 Thermal Resistance - Fumed Silica Board....................... 63

1473c Low Density Polyethylene Resin....................................... 60

1474b Polyethylene Resin.............................................................. 60

1475a Polyethylene, Linear ........................................................... 60

1476a Branched Polyethylene Resin............................................ 60

1478 Polystyrene (Narrow Molecular Weight Distribution).. 60

1479 Polystyrene (Narrow Molecular Weight Distribution).. 60

1482a Polyethylene......................................................................... 60

1483a Linear Polyethylene ............................................................ 60

1484a Linear Polyethylene ............................................................ 60

1486 Bone Meal ............................................................................ 20

SRM Descriptor .............................................................Page # 

1487 Poly(Methyl Methacrylate)

 (6 K Narrow Molecular Weight Distribution) .............. 60

1488 Poly(Methyl Methacrylate)................................................ 60

1491a Methyl-Substituted Polycyclic Aromatic ......................... 38

1492 Chlorinated Pesticides in Hexane..................................... 38

1493 Polychlorinated Biphenyl Congeners............................... 38

1494 Aliphatic Hydrocarbons .................................................... 38

1496 Unpigmented Polyethylene Gas Pipe Resin .................... 60

1507b THC-COOH in Freeze-Dried Urine...........................22,56

1508a Benzoylecgonine (Cocaine Metabolite) 

 in Freeze-Dried Urine .................................................22,56

1514 Thermal Analysis Purity Set.............................................. 62

1515 Apple Leaves........................................................................ 42

1543 GC/MS System Performance............................................. 38

1544 Fatty Acids and Cholesterol in a Frozen Diet Composite.. 42

1546a Meat Homogenate............................................................... 42

1547 Peach Leaves........................................................................ 42

1548a Typical Diet.......................................................................... 42

1549a Whole Milk Powder............................................................ 42

1566b Oyster Tissue ....................................................................... 42

1567b Wheat Flour......................................................................... 42

1568b Rice Flour............................................................................. 42

1570a Trace Elements in Spinach Leaves.................................... 42

1573a Tomato Leaves..................................................................... 42

1575a Trace Elements in Pine Needles........................................ 42

1577c Bovine Liver......................................................................... 42

1584 Priority Pollutant Phenols in Methanol........................... 38

1595 Tripalmitin........................................................................... 20

1596 Dinitropyrene Isomers and 1-Nitropyrene 

 in Methylene Chloride ..................................................... 38

1597a Complex Mixture of Polycyclic Aromatic  ...................... 38

1598a Inorganic Constituents in Animal Serum ....................... 20

1599 Anticonvulsant Drug Level Assay Standard.................... 20

1614 Dioxin (2,3,7,8-TCDD in Isooctane)............................... 38

1616b Sulfur in Kerosene (Low Level)......................................... 34

1617b Sulfur in Kerosine (High Level)........................................ 34

1619b Sulfur in Residual Fuel Oil (0.7 %)................................... 34

1620c Sulfur in Residual Fuel Oil (4 %)...................................... 34

1622e Sulfur in Residual Fuel Oil

1623c Sulfur in Residual Fuel Oil 0.3 %...................................... 34

1624d Sulfur in Diesel Fuel Oil, 0.4 % ......................................... 34

1632d Trace Elements in Coal (Bituminous)....................27,34,35

1633c Trace Elements in Coal Fly Ash........................................ 35

1634c Trace Elements in Fuel Oil................................................. 34

1635a Trace Elements in Coal, (Subbitumimous) ................34,35

1640a Trace Elements in Natural Water...................................... 26

1641e Mercury in Water................................................................ 26

1643f Trace Elements in Water.................................................... 26

1646a Estuarine Sediment.......................................................26, 47

1647f Priority Pollutant Polycyclic Aromatic 

 Hydrocarbons in Acetonitrile ......................................... 38

1648a Urban Particulate Matter.........................................22,24,26

1649b Urban Dust .....................................................................22,38

1650b Diesel Particulate Matter...............................................22,38

1655 Potassium Chloride, KCl (cr) for Solution Calorimetry 62

1656 Thianthrene Combustion Calorimetric Standard .......... 62

1657 Synthetic Refuse-Derived Fuel 

 Combustion Calorimetric Standard............................... 62

1658a Methane in Air (Nominal Amount-of-

 Substance Fraction 1 umol/mol)..................................... 32

1659a Methane in Air (Nominal Amount-of-

 Substance Fraction 10 umol/mol) .................................. 32

1660a Methane and Propane in Air  

(Nominal: 4 μmol/mol Methane; 1 μmol/mol Propane)....32

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Numerical Index

SRM Descriptor .............................................................Page # 

1661a* Sulfur Dioxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 500 μmol/mol) ................................ 31

1662a* Sulfur Dioxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 1000 μmol/mol).............................. 31

1663a* Sulfur Dioxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 1500 μmol/mol).............................. 31

1664a* Sulfur Dioxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 2500 μmol/mol).............................. 31

1665b Propane in Air (Nominal Amount-of-

 Substance Fraction 3 μmol/mol)..................................... 32

1666b Propane in Air (Nominal Amount-of-

 Substance Fraction 10 μmol/mol)................................... 32

1667b Propane in Air (Nominal Amount-of-

 Substance Fraction 50 μmol/mol)................................... 32

1668b* Propane in Air (Nominal Amount-of-

 Substance Fraction 100 μmol/mol) ................................ 32

1669b Propane in Air (Nominal Amount-of-

 Substance Fraction 500 μmol/mol) ................................ 32

1674b* Carbon Dioxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 7 % mol/mol)................................... 30

1677c* Carbon Monoxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 10 μmol/mol)................................... 31

1678c* Carbon Monoxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 50 μmol/mol)................................... 31

1679c* Carbon Monoxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 100 μmol/mol) ................................ 31

1680b* Carbon Monoxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 500 μmol/mol) ................................ 31

1681b* Carbon Monoxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 1000 μmol/mol).............................. 30

1683b* Nitric Oxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 50 μmol/mol)................................... 31

1684b* Nitric Oxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 100 μmol/mol) ................................ 31

1685b* Nitric Oxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 250 μmol/mol) ................................ 31

1686b* Nitric Oxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 500 μmol/mol) ................................ 31

1687b* Nitric Oxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 1000 μmol/mol).............................. 31

1689 Sulfur Dioxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 5 μmol/mol)..................................... 31

1690 Polystyrene Spheres (1 μm Diameter Particle Size)........ 82

1691 Polystyrene Spheres (0.3 μm Diameter Particle Size) .... 82

1693a* Sulfur Dioxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 50 μmol/mol)................................... 31

1694a* Sulfur Dioxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 100 μmol/mol) ................................ 31

1696a* Sulfur Dioxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 3500 μmol/mol).............................. 31

1710 Aluminum Alloy 3004.......................................................... 8

1711 Aluminum Alloy 3004.......................................................... 8

1713 Aluminum Alloy 5182.......................................................... 8

1718 Nitrous Oxide in Air (Nominal Amount-of-

 Substance Fraction 1 μmol/mol)..................................... 31

1720 Northern Continental Air.................................................. 32

1721 Southern Oceanic Air ........................................................ 32

1727 Anode Tin............................................................................ 10

1728 Tin Alloy (Sn-3Cu-0.5Ag)................................................. 10

1729 Tin Alloy (97 Sn - 3 Pb)..................................................... 10

1738 Zinc-Aluminum Alloy ....................................................... 10

1739 Zinc-Aluminum Alloy ....................................................... 10

1740 Zinc-Aluminum Alloy ....................................................... 10

SRM Descriptor .............................................................Page # 

1741 Zinc-Aluminum Alloy ....................................................... 10

1742 Zinc-Aluminum Alloy ....................................................... 10

1746 Silver Freezing-Point Standard.......................................... 62

1749 Gold versus Platinum Thermocouple 

 Certified Thermometer.................................................... 63

1750 Thermometer Certified Thermometer 

 Standard Platinum Resistance ........................................ 63

1751 Gallium Melting-Point Standard ...................................... 62

1754 Low-Alloy Steel, AISI 4320.................................................. 5

1755 Nitrogen in Low Alloy Steel................................................. 5

1761a Low Alloy Steel...................................................................... 3

1762a Low Alloy Steel...................................................................... 3

1763a Low Alloy Steel...................................................................... 3

1764a Low Alloy Steel...................................................................... 3

1765 Low Alloy Steel...................................................................... 3

1766 Low Alloy Steel...................................................................... 3

1767 Low Alloy Steel...................................................................... 3

1768 High-Purity Iron................................................................... 3

1772 Tool Steel (S-7)...................................................................... 4

1775 Refractory Alloy MP-35-N............................................... 8,9

1800b Eighteen Non-Methane Hydrocarbon Compounds 

 in Nitrogen (Nominal 5 nmol/mol) ............................... 32

1810a Linerboard ........................................................................... 93

1818a Chlorine in Lubricating Base Oils.................................... 54

1819a Sulfur in Lubricating Base Oil........................................... 54

1828b Ethanol-Water Solutions (Nominal Mass Fractions 

 of 0.02 %, 0.04 %, 0.08 %, 0.1 %, 0.2 %, and 0.3 %,)..21,56

1830 Soda Lime Float Glass........................................................ 50

1831 Soda Lime Sheet Glass........................................................ 50

1834 Fused Simulated Ore for X-ray

1835 Borate Ore............................................................................ 46 

1845a Whole Egg Powder ............................................................. 42

1848 Lubricating Oil Additive Package ..................................... 54

1849a Infant/Adult Nutritional Formula .................................... 42

1857 Tool Steel for Abrasive Wear Standard............................. 86

1877 Beryllium Oxide Powder ................................................... 22

1878b Respirable Alpha Quartz 

 (Quantitative X-Ray Powder Diffraction Standard)..22,80

1879b Respirable Cristobalite ..................................................22,80

1880b Portland Cement................................................................. 52

1881b Portland Cement (Blended with Fly Ash)....................... 52

1882a Calcium Aluminate Cement.............................................. 52

1883a Calcium Aluminate Cement.............................................. 52

1884b Portland Cement................................................................. 52

1885b Portland Cement................................................................. 52

1886a Portland Cement ................................................................ 52

1886b Portland Cement................................................................. 52 

1887b Portland Cement................................................................. 52

1888b Portland Cement................................................................. 52

1889a Portland Cement (Blended with Limestone).................. 52

1893 Copper Microhardness Test Block (Knoop) ................... 86

1894a Vickers Microhardness of Copper.................................... 86

1895 Nickel Microhardness Test Block (Knoop) ..................... 86

1896b Vickers Microhardness of Nickel...................................... 86

1898 Titanium Dioxide Nanomaterial .................................83,90

1900 Specific Surface Area Standard ......................................... 83

1905 Nickel Microhardness Test Block (Knoop) ..................... 86

1906 Nickel Microhardness Test Block (Knoop) ..................... 86

1907 Nickel Microhardness Test Block (Knoop) ..................... 86

1908 Vickers Microhardness of Nickel...................................... 86

1909 Vickers Microhardness of Nickel...................................... 86

1917 Mercury Porosimetry Standard ........................................ 83

1921b IR Transmission Wavelength ............................................ 66

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Numerical Index

SRM Descriptor .............................................................Page # 

1932 Fluorescein Solution .......................................................... 66

1934 Fluorescent Dyes for Quantitative Flow 

 Cytometry (Visible Spectral Range)............................... 66

1939a Polychlorinated Biphenyls (Congeners)

1941b Organics in Marine Sediment........................................... 38

1944 New York/New Jersey Waterway Sediment......26,27,38,47

1945 Organics in Whale Blubber............................................... 38

1946 Lake Superior Fish Tissue...................................26,38,39,42

1947 Lake Michigan Fish Tissue .................................26,38,39,42

1950 Metabolites in Human Plasma .....................................20,21

1951c Lipids in Frozen Human Serum ..................................20,21

1952a Cholesterol in Human Serum ......................................20,21

1953 Organic Contaminants in Non-Fortified 

 Human Milk .................................................................38,42

1954 Organic Contaminants in Fortified Human Milk .....38,42

1957 Organic Contaminants in Non-Fortified 

 Human Serum.........................................................21,38,39

1958 Organic Contaminants in Fortified 

 Human Serum.........................................................21,38,39

1961 Polystyrene Spheres 30 μm Diameter .............................. 82

1963a Polystyrene Spheres Nominal 100 nm Diameter ......82,90

1964 Polystyrene Spheres Nominal 60 nm Diameter ........82,90

1965 Microsphere Slide (10 μm Polystyrene Spheres) ............ 82

1967a High-Purity Platinum Thermoelement

 (platinum wire) ................................................................. 63

1968 Gallium Melting-Point Standard ...................................... 63

1970 Succinonitrile Triple Point................................................. 63

1972 1,3-Dioxolan-2-one Triple Point....................................... 63

1974c Organics in Mussel Tissue (Mytilus edulis) .................... 38

1975 Diesel Particulate Extract..............................................22,38

1976b Instrument Response Standard for 

 X-Ray Powder Diffraction ............................................... 80

1978 Particles Size Distribution Standard

 for Gravity Sedimentation ............................................... 82

1979 Powder Diffraction Line Profile Standard 

 for Crystallite Size Analysis 

 (Nano-Crystalline ZnO Powder).................................... 80

1980 Positive Electrophoretic (+μE) Mobility Standard ......... 83

1982 Zirconia Thermal Spray Powder - 

 Particle Size Distribution................................................. 82

1984 Thermal Spray Powder - Particle Size

1985 Thermal Spray Powder - Particle Size Distribution 

 Tungsten Carbide/Cobalt (Spheroidal).......................... 82

1990 Single Crystal Diffractometer Alignment Standard - 

 Ruby Sphere....................................................................... 80

1991 Mix Coal Tar/Petroleum Extract ...................................... 38

1994 Standard Silicon Single Crystal Wafer 

 for Crystalline Orientation.............................................. 80

1995 Standard Sapphire Single Crystal Wafer 

 for Crystalline Orientation.............................................. 80

2000 Calibration Standard for High-

 Resolution X-Ray Diffraction.......................................... 80

2012 Calibration Standard for High-

 Resolution X-Ray Diffraction (200 mm Wafer)............ 80

2031b Metal-on-Fused-Silica Neutral Density........................... 66

2034 Holmium Oxide Solution Wavelength............................. 66

2035a Ultraviolet-Visible-Near-Infrared..................................... 66

2036 Near Infrared Wavelength/Wavenumber

 Reflection Standard .......................................................... 66

2061 TiAl(NbW) Alloy for Microanalysis...........................10,12

2062 Ti Alloy,  Al-Nb-W ............................................................ 10

2066 K-411 Glass Microspheres................................................. 12

2073a Sinusoidal Roughness Specimen....................................... 86

SRM Descriptor .............................................................Page # 

2074 Sinusoidal Roughness Specimen....................................... 86

2075 Sinusoidal Roughness Specimen....................................... 86 

2082 Pathlength Absorbance Standards for 

 Microliter Volume Spectrophotometers....................... 66

2087 Dimensional Standard for Medical 

 Computed Tomography................................................... 93

2088 Density Standard for Medical 

 Computed Tomography.................................................. 93

2092 Low-Energy Charpy V-Notch Impact 

 Specimens (NIST-Verification, 8-mm Striker)   ........... 92

2093 Low-Energy Charpy V-Notch Impact Specimens 

 (Self-Verification, 8-mm Striker) .................................. 92

2096 High-Energy Charpy V-Notch Impact Specimens 

 (NIST-Verification, 8-mm Striker)................................. 92

2097 High-Energy Charpy V-Notch Impact Specimens 

 (Self-Verification, 8-mm Striker).................................... 92

2098 Super High-Energy Charpy V-Notch 

 Impact Specimen (NIST-Verification)........................... 92

2100a Fracture Toughness of Ceramic ........................................ 93

2100b Fracture Toughness of Ceramic ........................................ 93

2112 Dynamic Impact Force Verific Specimens 

 (Nominal 24kN)................................................................ 92

2113 Dynamic Impact Force Verification Specimens 

 (Nominal 33kN)................................................................ 92

2133 Phosphorus Implant in Si  Depth Profile......................... 74

2134 Profile Standard Arsenic Implant in Silicon Depth ....... 74

2135c Ni/Cr Thin Film Depth Profile.......................................... 74

2137 Boron Implant in Silicon Standard 

 for Calibration of Concentration in a Depth Profile.... 74

2139 Zinc-Alumnum Alloy......................................................... 10

2141 Urea....................................................................................... 14

2143 p-Fluorobenzoic Acid......................................................... 14

2144 m-Chlorobenzoic Acid....................................................... 14

2152 Urea Combustion Calorimetric Standard ....................... 62

2159 LA Steel, Carbon & Sulfur only........................................... 2

2160 LA Steel, Carbon & Sulfur only........................................... 2

2165 Low Alloy Steel ..................................................................... 2

2166 Low Alloy Steel...................................................................... 2

2167 Low Alloy Steel...................................................................... 2

2168 High Purity Iron.................................................................... 2

2171 LA Steel, (HSLA 100)........................................................... 2

2172 S-7 Tool Steel ......................................................................... 4

2175 Refractory Alloy MP-35-N............................................... 8,9

2181 HEPES .................................................................................. 58

2182 HEPES Sodium Salt............................................................ 58

2185 Potassium Hydrogen Phthalate pD Standard.................. 58

2186I Potassium Dihydrogen Phosphate.................................... 58

2186II Disodium Hydrogen Phosphate........................................ 58

2191a Sodium Bicarbonate ........................................................... 58

2192a Sodium Carbonate.............................................................. 58

2193a Calcium Carbonate pH Standard

 [used as saturated Ca(OH)2 solution] ........................... 58

2197 Low-Energy Charpy V-Notch Specimens

 (Self-Verification, 2-mm Striker).................................... 92

2198 High-Energy Charpy V-Notch Specimens

 (Self-Verification, 2-mm Striker).................................... 92

2201 Sodium Chloride (Ion-Selective)...................................... 58

2203 Potassium Fluoride (Standard for 

 Ion-Selective Electrodes) ................................................. 58 

2206 Controlled Pore Glass - BET Specific 

 Surface Area (300 nm) .................................................... 83

2207 Controlled Pore Glass - BET Specific Surface Area........ 83

2214 Isooctane Liquid Density................................................... 78

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Numerical Index

SRM Descriptor .............................................................Page # 

2216 Miniaturized Low Energy Charpy, 

 V-Notch KLST Impact Specimen ................................... 92

2218 Miniaturized Hi Energy Charpy, 

 V-Notch KLST Impact Specimen  .................................. 92

2219 Miniaturized Super High Energy, Charpy 

 V-Notch KLST Impact Specimen ................................... 92

2234 Gallium for Thermal Analysis........................................... 62

2235 Bismuth for Thermal Analysis .......................................... 62

2241 Relative Intensity Correction Standard 

 for Raman Spectroscopy: 785 nm Excitation................ 66

2242 Relative Intensity Correction Standard 

 for Raman Spectroscopy: 532 nm Excitation...................... 66

2244 Relative Intensity Correction Standard for 

 Raman Spectroscopy: 1064 nm Excitation ....................... 66

2245 Relative Intensity Correction Standard 

 for Raman Spectroscopy:  633 nm Excitation..................... 66

2246 Relative Intensity Correction Standard for Raman 

 Spectroscopy: 830 nm Excitation.................................... 66

2257 PBDE Congeners in 2,2,4-Trimethylpentane.................. 38

2258 BDE 209 in 2,2,4-Trimethylpentane................................. 38

2259 PCB Congeners in 2,2,4-Trimethylpentane .................... 38

2260a Aromatic Hydrocarbon in Toluene .................................. 38

2261 Chlorinated Pesticides in Hexane..................................... 38

2262 Chlorinated Biphenyl Cogeners ....................................... 38

2266 Hopanes and Steranes in, 2,2,4 Trimethylpentane ......... 38

2269 Perdeuterated PAH-I Solution in Hexane/Toluene........ 38

2270 Perdeuterated PAH-II Solution in Hexane/Toluene ...... 38

2273 Chlorinated Pesticides (DDTs) and Metabolites 

 in Isooctane ....................................................................... 38

2274 PCB Congener Solution-II in Isooctane.......................... 38

2275 Chlorinated Pesticide Solution-II in Isooctane .............. 38

2294 Reformulated Gasoline (Nominal Mass 

 Fraction 11 % MTBE)....................................................... 34

2295 Reformulated Gasoline (Nominal Mass 

 Fraction 15 % MTBE)....................................................... 34

2296 Reformulated Gasoline 

 (Nominal Mass Fraction 13 % ETBE)............................ 34

2297 Reformulated Gasoline....................................................... 34

2298 Sulfur in Gasoline (High-Octane).................................... 34

2299 Sulfur in Gasoline (Reformulated)................................... 34

2366a Cytomegalovirus DNA (TowneΔ147 BAC) 

 for DNA Measurements.........................................20,23,56

2372 Human DNA Quantitation Standard..........................23,56

2373 Genomic DNA Standards for HER2 Measurements...23,56

2374 DNA Sequence Library for External RNA Controls.23,56

2377 Fatty Acid Methyl Esters in, 2,2,4-Trimethylpentane35,38

2378 Fatty Acids in Frozen Human Serum..........................20,21

2383a Baby Food Composite ........................................................ 42

2384 Baking Chocolate................................................................ 42

2385 Slurried Spinach.............................................................26,42

2387 Peanut Butter..................................................................26,42

2389a Amino Acids in 0.1 mol/L Hydrochloric Acid ............... 20

2391c PCR-Based DNA Profiling Standard...........................23,56

2392-I Mitochondrial DNA Sequencing

 (Human HL-60 DNA).................................................23,56

2392 Mitochondrial DNA Sequencing.................................23,56

2393 CAG Repeat Length Mutation 

 in Huntington’s Disease...............................................23,56

2394 Heteroplasmic Mitochondrial DNA 

 Mutation Detection Standard.....................................23,56

2396 Oxidative DNA Damage Mass 

 Spectrometry Standards..............................................23,56

C2400 High-Alloy Steel ACI (17/4 PH) (disk form).................... 3

SRM Descriptor .............................................................Page # 

C2401 HA Steel (ACI-C-4M-Cu) ................................................... 3

C2402 Hastelloy7C............................................................................ 9

C2415a Battery Lead (UNS 52770)................................................... 9

C2416 Bullet Lead ............................................................................. 9

C2417 Lead-Base Alloy .................................................................... 9

C2418 High-Purity Lead.................................................................. 9

C2424 Ductile Iron C........................................................................ 5

2426 55 % Aluminum-Zinc Alloy........................................... 8,10

2429 Flue Gas Desulfurization Gypsum ....................35,43,46,52

2430 Scheelite Ore........................................................................ 46

2431 Titanium Base Alloy ........................................................... 10

2432 Titanium-Base Alloy 10V-2Fe-3Al................................... 10

2433 Titanium-Base Alloy 8Al-1Mo-1V................................... 10

2445 Mercury in Iodinated Activated Carbon ......................... 27

2448 Mercury in Brominated Activated Carbon ..................... 27

2451 Fine Carbon (Activated)...............................................26,27

2452 Hydrogen In Titanium Alloy............................................. 10

2453a Hydrogen In Titanium Alloy 

 (Nominal Mass Fraction 125 mg/kg H)......................... 10

2454 Hydrogen In Titanium Alloy............................................. 10

2460 Standard Bullet..........................................................39,56,94

2461 Standard Cartridge Case..........................................39,56,94

2483 Single-Wall Carbon Nanotubes (Raw Soot)...............12,90

2484 Multiwall Carbon Nanotubes (Raw Soot)....................... 90

2490 Non-Newtonian Polymer Solution................................... 60

2492 Bingham Paste Mixture for 

 Rheological Measurements.............................................. 60

2493 Bingham Mortar Mixture for 

 Rheological Measurements............................................... 60

2514 Wavelength Calibration Reference ................................... 74

2515 Wavelength Calibration Reference ................................... 74

2517a High Resolution Wavelength Calibration 

 Reference for 1510 to 1540 nm Acetylene 12C2H2 ..... 74

2519a High Resolution Wavelength Calibration Reference 

 for 1530 nm -1565 nm Hydrogen Cyanide..................... 74

2520 Optical Fiber Diameter Standard ..................................... 74

2541 Silicon Resistivity Standard - 0.01 ohm•cm Level.......... 72

2543 Silicon Resistivity Standard - 1 ohm•cm Level............... 72

2553 Optical Fiber Coating Diameter 

 (Nominal Refractive Index 1.504).................................. 74

2554 Optical Fiber Coating Diameter....................................... 74

2556 Used Auto Catalyst (Pellets).............................................. 27

2557 Used Auto Catalyst (Monolith)......................................... 27

2569 Lead Paint Films for Children’s Products........................ 24

2570 Lead Paint Film for Portable X-Ray ................................. 24

2571 Lead Paint Film for Building Surfaces ............................. 24

2572 Lead Paint Film for Building Surfaces ............................. 24

2573 Lead Paint Film for Building Surfaces ............................. 24

2574 Lead Paint Film for Building Surfaces ............................. 24

2575 Lead Paint Film for Building Surfaces ............................. 24

2576 Lead Paint Film for Building Surfaces ............................. 24

2579a Lead Paint Films For Building Surfaces 

 (SRM 2570 through SRM 2575)...................................... 24

2580 Powdered Paint Nominal 4 % Lead.................................. 24

2581 Powdered Paint Nominal 0.5 % Lead............................... 24

2582 Powdered Paint Nominal 200 mg/kg Lead...................... 24

2583 Trace Elements in Indoor Dust 

 (Nominal Mass Fraction of 90 mg/kg Lead).......22,24,26

2584 Trace Elements in Indoor Dust 

 (Nominal Mass Fraction of 90 mg/kg Lead).......22,24,26

2585 Organic Contaminants in House Dust .......................22,38

2586 Trace Elements in Soil Containing Lead 

 From Paint (Nominal 500 mg/kg Lead)...............24,26,47

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Numerical Index

SRM Descriptor .............................................................Page # 

2587 Trace Elements in Soil Containing Lead 

 From Paint (Nominal 3000 mg/kg Lead).............24,26,47

2589 Powdered Paint Nominal 10% Lead................................. 24

2613a Carbon Monoxide in Air (Nominal Amount-of-

 Substance Fraction 20 μmol/mol)................................... 30

2614a Carbon Monoxide in Air (Nominal Amount-of-

 Substance Fraction 45 μmol/mol)................................... 30

2617 Carbon Dioxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 500 μmol/mol) ................................ 30

2619a Carbon Dioxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 0.5 % mol/mol) ............................... 30

2620a Carbon Dioxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 1 % mol/mol)................................... 30

2621a Carbon Dioxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 1.5 % mol/mol) ............................... 30

2622a Carbon Dioxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 2 % mol/mol)................................... 30

2623a Carbon Dioxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 2.5 % mol/mol) ............................... 30

2624a Carbon Dioxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 3 % mol/mol)................................... 30

2625a* Carbon Dioxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 3.5 % mol/mol) ............................... 30

2627a Nitric Oxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 5 μmol/mol)..................................... 31

2628a Nitric Oxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 10 μmol/mol)................................... 31

2629a* Nitric Oxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 20 μmol/mol)................................... 31

2630* Nitric Oxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 1500 μmol/mol).............................. 31

2631a* Nitric Oxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 3000 μmol/mol).............................. 31

2635a* Carbon Monoxide in Nitrogen (Nominal Amount-ofSubstance Fraction 25 μmol/mol)..................................... 31

2636a* Carbon Monoxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 250 μmol/mol) ................................ 31

2637a* Carbon Monoxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 2500 μmol/mol).............................. 30

2638a* Carbon Monoxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 5000 μmol/mol).............................. 30

2639a Carbon Monoxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 1 % mol/mol)................................... 30

2640a Carbon Monoxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 2 % mol/mol)................................... 30

2641a Carbon Monoxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 4 % mol/mol)................................... 30

2642a* Carbon Monoxide in Nitrogen (Nominal Amount-of-

 Substance Fraction 8 % mol/mol)................................... 30

2644a Propane in Nitrogen (Nominal Amount-of-

 Substance Fraction 250 μmol/mol) ................................ 32

2646a Propane in Nitrogen (Nominal Amount-of-

 Substance Fraction 1000 μmol/mol).............................. 32

2647a Propane in Nitrogen (Nominal Amount-of-

 Substance Fraction 2500 μmol/mol).............................. 32

2657a* Oxygen in Nitrogen (Nominal Amount-of-

 Substance Fraction 2 % mol/mol)................................... 31

2658a* Oxygen in Nitrogen (Nominal Amount-of-

 Substance Fraction 10 % mol/mol) ................................ 31

2659a* Oxygen in Nitrogen (Nominal Amount-of-

 Substance Fraction 21 % mol/mol) ................................ 31

2660a* Total Oxides of Nitrogen (NOx) in Air (Nominal 

 Amount-of-Substance Fraction 100 μmol/mol)........... 31

SRM Descriptor .............................................................Page # 

2668 Toxic Elements in Frozen Human Urine ....................20,21

2669 Arsenic Species in Frozen Human Urine....................20,21

2670a Toxic Elements in Urine (Freeze-Dried) ....................20,21

2681 Trace Constituent Elements in Blank

 Filters (47 mm dia)........................................................... 22

2682c Subbituminous Coal 

 (Nominal Mass Fraction 0.5 % Sulfur) .......................... 34

2683c Bituminous Coal ................................................................. 34

2684c Bituminous Coal  ................................................................ 34

2685c Bituminous Coal  ................................................................ 34

2686a Portland Cement Clinker................................................... 52

2687 Portland Cement Clinker................................................... 52

2688 Portland Cement Clinker................................................... 52

2689 Coal Fly Ash ...................................................................35,83

2690 Coal Fly Ash ...................................................................35,83

2691 Coal Fly Ash ...................................................................35,83

2693 Bituminous Coal  ................................................................ 34

2695 Fluoride in Vegetation........................................................ 42

2696 Silica Fume.................................................................50,52,83

2700 Hexavalent Chromium in Contaminated Soil 

 (Low Level)...................................................................26,47

2701 Hexavalent Chromium in Contaminated Soil 

 (High Level)..................................................................26,47

2702 Inorganics in Marine Sediment ...................................26,47

2703 Sediment for Solid Sampling .......................................26,47

2709a San Joaquin Soil .............................................................26,47

2710a Montana I Soil................................................................26,47

2711a Montana II Soil...............................................................26,47

2716 Sulfur in Gasoline (<1 mg/kg) .......................................... 34

2717a Sulfur in Residual Fuel Oil 

 (Nominal Mass Fraction 3 %)......................................... 34

2718a Green Petroleum Coke.............................................27,34,35

2719 Calcined Petroleum Coke........................................27,34,35

2720 Sulfur in Di-n-Butyl Sulfide .............................................. 34

2721 Crude Oil (Light -Sour)................................................34,35

2722 Crude Oil (Heavy Sweet)..............................................34,35

2723b Sulfur in Diesel Fuel Oil  

 (Nominal Mass Fraction 10 mg/kg)............................... 34

2730 Hydrogen Sulfide in Nitrogen (Nominal 

 Amount-of-Substance Fraction 5 μmol/mol)............... 32

2731 Hydrogen Sulfide in Nitrogen (Nominal 

 Amount-of-Substance Fraction 20 μmol/mol)............. 32

2735 Nitric Oxide in Nitrogen (Nominal 

 Amount-of-Substance Fraction 800 μmol/mol)........... 31

2737 Nitric Oxide in Nitrogen (Nominal 

 Amount-of-Substance Fraction 500 nmol/mol)........... 31

2738 Nitric Oxide in Nitrogen (Nominal 

 Amount-of-Substance Fraction 1000 nmol/mol)......... 31

2740a Carbon Monoxide in Nitrogen (Nominal

 Amount-of-Substance Fraction 10 % mol/mol)........... 30

2741a Carbon Monoxide in Nitrogen (Nominal 

 Amount-of-Substance Fraction 13 % mol/mol)........... 30

2745* Carbon Dioxide in Nitrogen (Nominal 

 Amount-of-Substance Fraction 16 % mol/mol)........... 30

2750 Methane in Air (Nominal Amount-of-

 Substance Fraction 50 μmol/mol)................................... 32

2751 Methane in Air (Nominal Amount-of-

 Substance Fraction 100 μmol/mol) ................................ 32

2764 Propane in Air (Nominal Amount-of-Substance 

 Fraction 0.25 μmol/mol).................................................. 32

2765 Propane in Air (Nominal Amount-of-

 Substance Fraction 100 nmol/mol)................................ 32

2770 Sulfur in Diesel Fuel Oil (40 mg/kg)................................ 34

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Numerical Index

SRM Descriptor .............................................................Page # 

2771 Sulfur in Diesel Fuel Blend Stock ..................................... 34

2772 B100 Biodiesel (Soy-Based)............................................... 35

2773 B100 Biodiesel (Animal-Based)...................................34,35

2775 Foundry Coke.................................................................27,34

2776 Furnace Coke..................................................................27,34

2779 Gulf of Mexico Crude Oil.................................................. 38

2780a Hard Rock Mine Waste .................................................26,47

2781 Domestic Sludge...................................................26,38,39,47

2782 Industrial Sludge ............................................................26,47

2783 Air Particulate on Filter Media (47 mm dia) ........22,24,26

2786 Fine Atmospheric Particulate Matter..........................22,38

2787 Fine Atmospheric Particulate Matter..........................22,38

2798a Vickers Microhardness of Nickel...................................... 86

2806b Medium Test Dust (MTD) in Hydraulic Fluid ............... 83

2810 Rockwell C Hardness - Low Range................................... 86

2811 Rockwell C Hardness - Mid Range................................... 86

2812 Rockwell C Scale Hardness - High Range ....................... 86

2816 Rockwell Hardness 15N Scale - Low Range 

 (Nominal 72 HR15N)....................................................... 86

2817 Rockwell Hardness 15N Scale - Mid Range 

 (Nominal 83 HR15N)....................................................... 86

2818 Rockwell Hardness 15N Scale - High Range 

 (Nominal 91 HR15N)....................................................... 86

2819 Rockwell Hardness 30N Scale - Low Range 

 (Nominal 45 HR30N)....................................................... 86

2820 Rockwell Hardness 30N Scale - Mid Range 

 (Nominal 64 HR30N)....................................................... 86

2821 Rockwell Hardness 30N Scale - High Range 

 (Nominal 79 HR30N)........................................................ 86

2828 Knoop Microhardness of Steel.......................................... 86

2829 Vickers Microhardness of Steel......................................... 86

2830 Knoop Hardness of Ceramics ........................................... 86

2831 Vickers Hardness of Ceramics and Hardmetals............. 86

2841 Semiconductor Thin Film: AlxGa1-xAs Epitaxial Layers 

 (Al mole fraction x near 0.20)......................................... 12

2842 Semiconductor Thin Film: AlxGa1-xAs Epitaxial Layers 

 (Al mole fraction x near 0.30)......................................... 12

2870 Relative Permittivity and Loss Tangent

 1422 Cross-Linked Polystyrene...................................... 78

2881 Polystyrene Absolute Molecular Mass 

 Distribution Standard....................................................... 60

2885 Polyethylene (Mw, 6 280 g/mol) ....................................... 60

2886 Polyethylene (Mw, 87 000 g/mol)..................................... 60

2887 Polyethylene (Mw, 196 400 g/mol)................................... 60

2890 Water Saturated 1-Octanol ................................................ 35

2891 Ethanol-Water Solution 

 (Nominal Mass Fraction 0.02 %)...............................21,56

2892 Ethanol-Water Solution 

 (Nominal Mass Fraction, 0.04 %)..............................21,56

2893 Ethanol-Water Solution 

 (Nominal Mass Fraction, 0.08 %)..............................21,56

2894 Ethanol-Water Solution 

 (Nominal Mass Fraction, 0.1 %)................................21,56

2895 Ethanol-Water Solution 

 (Nominal Mass Fraction, 0.2 %)................................21,56

2896 Ethanol-Water Solution 

 (Nominal Mass Fraction, 0.3 %)................................21,56

2897a Ethanol Water Solution

 (Nominal Mass Fraction 2 %)....................................21,56

2898a Ethanol Water Solution 

 (Nominal Mass Fraction 6 %)....................................21,56

2899a Ethanol-Water Solution 

 (Nominal Mass Fraction 25 %)..................................21,56

SRM Descriptor .............................................................Page # 

2900 Ethanol-Water Solution 

 (Nominal Mass Fraction 95.6 %)...............................21,56 

2905 Trace Terrorist Explosives Simulants..........................39,56

2907 Trace Terrorist Explosives Simulants..........................39,56

2910b Hydroxyapatite.................................................................... 22

2921 Human Cardiac Troponin Complex ...........................20,21

2924 C-Reactive Protein Solution.............................................. 20

2940 Relative Intensity Correction Standard for Fluorescence 

 Spectroscopy: Orange Emission  ................................... 66

2941 Relative Intensity Correction Standard for Fluorescence 

 Spectroscopy: Green Emission ...................................... 66

2942 Relative Intensity Correction Standard for Fluorescence 

 Spectroscopy: Ultraviolet Emission............................... 66

2943 Relative Intensity Correction Standard for Fluorescence 

 Spectroscopy: Blue Emission ......................................... 66

2944 Relative Intensity Correction Standard for Fluorescence 

 Spectroscopy: Red Emission........................................... 66

2950a Respirable Alpha Quartz on Filter Media........................ 22

2960 Respirable Cristobalite on Filter Media ........................... 22

2972a 25-Hydroxyvitamin D Calibration Solutions.................. 20

2973 Vitamin D Metabolites in Frozen Human Serum 

 (High Level)..................................................................20,21

2974a Organics in Freeze-Dried Mussel Tissue 

 (Mytilus edulis)............................................................22,38

2975 Diesel Particulate Matter...............................................22,38

2976 Mussel Tissue (Trace Elements & Methylmercury) 

 Freeze-Dried...................................................................... 26

3035 Arsenic Species in Apple Juice .......................................... 42

3060 Monoester Phthalates in Acetonitrile............................... 38

3074 Phthalates in Methanol ...................................................... 39

3077 Aroclor 1242 in Transformer Oil...................................... 39

3079 Aroclor 1254 in Transformer Oil...................................... 39

3080 Aroclor 1260 in Transformer Oil...................................... 39

3101a Aluminum (Al) Standard Solution................................... 15

3102a Antimony (Sb) Standard Solution .................................... 15

3103a Arsenic (As) Standard Solution ........................................ 15

3104a Barium (Ba) Standard Solution......................................... 15

3105a Beryllium (Be)  Standard Solution ................................... 15

3106 Bismuth (Bi) Standard Solution........................................ 15

3107 Boron (B) Standard Solution............................................. 15

3108 Cadmium (Cd) Standard Solution ................................... 15

3109a Calcium (Ca) Standard Solution....................................... 15

3110 Cerium (Ce) Standard Solution........................................ 15

3111a Cesium (Cs) Standard Solution ........................................ 15

3112a Chromium (Cr) Standard Solution .................................. 15

3113 Cobalt (Co) Standard Solution ......................................... 15

3114 Copper (Cu) Standard Solution........................................ 15

3115a Dysprosium (Dy) Standard Solution................................ 15

3116a Erbium (Er) Standard Solution......................................... 15

3117a Europium (Eu) Standard Solution.................................... 15

3118a Gadolinium (Gd) Standard Solution................................ 15

3119a Gallium (Ga) Standard Solution....................................... 15

3120a Germanium (Ge) Standard Solution................................ 15

3121 Gold (Au) Standard Solution ............................................ 15

3122 Hafnium (Hf) Standard Solution...................................... 15

3123a Holmium (Ho) Standard Solution.................................... 15

3124a Indium (In) Standard Solution ......................................... 15

3126a Iron (Fe) Standard Solution............................................... 15

3127a Lanthanum (La) Standard Solution.................................. 15

3128 Lead (Pb) Standard Solution ............................................. 15

3129a Lithium (Li) Standard Solution......................................... 15

3130a Lutetium (Lu) Standard Solution...................................... 15

3131a Magnesium (Mg) Standard Solution................................ 15

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Numerical Index

SRM Descriptor .............................................................Page # 

3132 Manganese (Mn) Standard Solution ................................ 15

3133 Mercury (Hg) Standard Solution...................................... 15

3134 Molybdenum (Mo) Standard Solution............................. 15

3135a Neodymium (Nd) Standard Solution............................... 15

3136 Nickel (Ni) Standard Solution........................................... 15

3137 Niobium (Nb) Standard Solution ..................................... 15

3138 Palladium (Pd) Standard Solution.................................... 15

3139a Phosphorus (P)  Standard Solution.................................. 15

3140 Platinum (Pt) Standard Solution ...................................... 15

3141a Potassium (K) Standard Solution ..................................... 15

3142a Praseodymium (Pr) Standard Solution............................ 15

3143 Rhenium (Re) Standard Solution ..................................... 15

3144 Rhodium (Rh) Standard Solution..................................... 15

3145a Rubidium (Rb) Standard Solution.................................... 15

3147a Samarium (Sm) Standard Solution................................... 15

3148a Scandium (Sc) Standard Solution..................................... 15

3149 Selenium (Se) Standard Solution...................................... 15

3150 Silicon (Si) Standard Solution ........................................... 15

3151 Silver (Ag) Standard Solution............................................ 15

3152a Sodium (Na) Standard Solution........................................ 15

3153a Strontium (Sr) Standard Solution..................................... 15

3154 Sulfur (S) Standard Solution.............................................. 15

3155 Tantalum (Ta) Standard Solution ..................................... 15

3156 Tellurium (Te) Standard Solution..................................... 15

3157a Terbium (Tb) Standard Solution....................................... 15

3158 Thallium (Tl) Standard Solution....................................... 15

3159 Thorium (Th) Standard Solution ...................................... 15

3160a Thulium (Tm) Standard Solution ..................................... 15

3161a Tin (Sn) Standard Solution................................................ 15

3162a Titanium (Ti) Standard Solution ...................................... 15

3163 Tungsten (W) Standard Solution...................................... 15

3164 Uranium (U) Standard Solution (Radioactive)............... 15

3165 Vanadium (V) Standard Solution  .................................... 15

3166a Ytterbium (Yb) Standard Solution.................................... 15

3167a Yttrium (Y) Standard Solution.......................................... 15

3168a Zinc (Zn) Standard Solution ............................................. 15

3169 Zirconium (Zr) Standard Solution ................................... 15

3177 Mercuric Chloride Standard Solution.............................. 15

3180 Iodide Anion (I-) Standard Solution................................. 16

3181 Sulfate Anion (SO4

2-) Standard Solution.......................... 16

3182 Chloride Anion (Cl-) Standard Solution.......................... 16

3183 Fluoride Anion (F-) Standard Solution ............................ 16

3184 Bromide Anion (Br -) Standard Solution ......................... 16

3185 Nitrate Anion (NO3

-

) Standard Solution ......................... 16

3186 Phosphate Anion (PO4

3-) Standard Solution................... 16

3222 Cigarette Tobacco Filler..................................................... 43

3233 Fortified Breakfast Cereal .................................................. 42

3234 Soy Flour.............................................................................. 42

3235 Soy Milk ............................................................................... 43

3236 Soy Protein Isolate .............................................................. 43

3237 Soy Protein Concentrate .................................................... 43

3238 Soy-Containing Solid Oral Dosage Form........................ 43

3239 Isoflavones Calibration Solutions..................................... 43

3246 Ginkgo biloba (Leaves) ....................................................... 43

3247 Ginkgo biloba (Extract) ...................................................... 43

3248 Ginkgo-Containing Tablets............................................... 43

3250 Serenoa repens (Fruit)......................................................... 43

3251 Serenoa repens (Extract)..................................................... 43

3252 Protein Drink Mix .............................................................. 42

3254 Green Tea (Camellia sinensis) Leaves..........................42,43

3255 Green Tea (Camellia sinensis) Extract.........................42,43

3256 Green Tea-Containing Solid Oral Dosage Form .......42,43

3257 Catechin Calibration Solutions....................................38,43

SRM Descriptor .............................................................Page # 

3262 St. John’s Wort (Hypericum perforatum L.) 

 Aerial Parts ...................................................................38,43

3264 St. John’s Wort (Hypericum perforatum L.) 

 Methanol Extract .........................................................38,43

3274 Botanical Oils Containing Omega-3 

 and Omega-6 Fatty Acids ................................................ 43

3275 Omega-3 and Omega-6 Fatty Acids in Fish Oil.............. 43

3278 Tocopherols in Edible Oils................................................. 42

3280 Multivitamin/Multielement Tablets ................................. 43

3281 Cranberry (Fruit)...........................................................42,43

3282 Low-Calorie Cranberry Juice Cocktail .......................42,43

3283 Cranberry Extract............................................................... 43

3284 Cranberry-Containing Solid Oral Dosage Form............ 43

3285 Mixed-Berry Containing Solid Oral Dosage Form........ 43

3286 Organic Acids Calibration Solution ................................. 43

3287 Blueberry (Fruit)................................................................. 42

3290 Dry Cat Food....................................................................... 42

3291 Bilberry Extract................................................................... 43

3451 Low Temperature Seebeck Coefficient Standard............ 63

3530 Iodized Table Salt (Iodide)............................................42,43

3532 Calcium-Containing Solid Oral Dosage Form ............... 43

3600 Absolute Intensity Calibration Standard 

 for Small-Angle X-ray Scattering.................................... 80

3667 Creatinine in Frozen Human Urine ................................. 20

3668 Mercury, Perchlorate, and Iodide 

 in Frozen Human Urine..............................................20,21

3669 Arsenic Species in Frozen Human Urine 

 (Elevated Levels)..........................................................20,21

3671 Nicotine Metabolites in Human Urine (Frozen)............ 20

3672 Organic Contaminants in Smokers’ Urine (Frozen).20,38

3673 Organic Contaminants in Non-Smokers’ Urine 

 (Frozen).........................................................................20,38

3950 Vitamin B6 in Frozen Human Serum .........................20,21

4222c Carbon-14 Radioactivity Standard for 

 Liquid Scintillation Counting ......................................... 68

4226d Nickel-63 Radioactivity Standard .................................... 68

4233e Cesium-137 Radioactivity Standard Solution................. 68

4239 Strontium-90 Radioactivity Standard Solution............... 68

4251C Barium-133 Radioactivity Standard Solution................. 68

4274 Holmium-166m Gamma-ray Emission Rate 

 Standard Solution ............................................................. 68

4288b Technetium-99 Radioactivity Standard ........................... 68

4320b Curium-244 Radioactivity Standard ................................ 68

4321c Natural Uranium Radioactivity Standard Solution........ 68

4322c Americium-241 Radioactivity Standard.......................... 68

4323b Plutonium-238 Radioactivity Standard ........................... 68

4324b Uranium-232 Radioactivity Standard Solution .............. 68

4326a Polonium-209 Radioactivity Standard............................. 68

4328c Thorium-229 Radioactivity Standard Solution............... 68

4329 Curium-243 Radioactivity Standard Solution ................ 68

4330c Plutonium-239 Radioactivity Standard ........................... 68

4332e Americium-243 Radioactivity Standard.......................... 68

4334i Plutonium-242 Radioactivity Standard Solution............ 68

4337 Lead-210 Radioactivity Standard Solution...................... 68

4338a Plutonium-240 Radioactivity Standard Solution............ 68

4339b Radium-228 Radioactivity Solution................................. 68

4340b Plutonium-241 Radioactivity Standard  .......................... 68

4341a Neptunium-237 Radioactivity Standard.......................... 68

4342a Thorium-230 Radioactivity Standard .............................. 68

4350b River Sediment Environmental Radioactivity Standard.. 70

4351 Human Lung Environmental Radioactivity Standard ... 70

4352 Human Liver Powder......................................................... 70

4353a Rocky Flats Soil Number 2 ................................................ 70

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Numerical Index

SRM Descriptor .............................................................Page # 

4354 Lake Sediment Powder....................................................... 70

4355 Peruvian Soil Powder ......................................................... 70

4356 Ashed Bone (Radioactivity) .............................................. 70

4357 Ocean Sediment Powder.................................................... 70

4358 Ocean Shellfish Radionuclide Standard........................... 70

4359 Seaweed Radionuclide Standard....................................... 70

4361c Hydrogen-3 Radioactivity Standard................................. 68

4370c Europium-152 Radioactivity Standard Solution ............ 68

4401H** Iodine-131 Radioactivity Standard  ................................. 69

4401L Iodine-131 Radioactivity Standard .................................. 69

4404H** Thallium-201 Radioactivity Standard  ............................ 69

4404L Thallium-201 Radioactivity Standard  ............................ 69

4407H** Iodine-125 Radioactivity Standard  ................................. 69

4407L Iodine-125 Radioactivity Standard  ................................. 69

4410H Technetium-99m Radioactivity Standard  ...................... 69

4412H** Molybdenum-99 Radioactivity Standard  ...................... 69

4412L Molybdenum-99 Radioactivity Standard  ...................... 69

4415H** Xenon-133 Radioactivity Standard ................................. 69

4415L Xenon-133 Radioactivity Standard ................................. 69

4416H** Gallium-67 Radioactivity Standard  ................................ 69

4416L Gallium-67 Radioactivity Standard  ................................ 69

4417H** Indium-111 Radioactivity Standard  ............................... 69

4417L Indium-111 Radioactivity Standard  ............................... 69

4427H** Yttrium-90 Radioactivity Standard  ................................ 69

4427L Yttrium-90 Radioactivity Standard  ................................ 69

4915f Cobalt-60 Radioactivity Standard Solution..................... 68

4919i Strontium-90 Radioactivity Standard  ............................. 68

4926e Hydrogen-3 Radioactivity Standard................................. 68

4927f Hydrogen-3 Water Radioactivity Standard ..................... 68

4929f Iron-55 Radioactivity Standard......................................... 68

4943 Chlorine-36 Radioactivity Standard ................................ 68

4949d Iodine-129 Radioactivity Standard Solution................... 68

4965 Radium-226  Radioactivity Standard Solution ............... 68

4966a Radium-226 Radioactivity Standard ............................... 68

4967a Radium-226 Radioactivity Standard Solution ................ 68

4969 Radium-226 Radioactivity Standard................................ 68

4990c Oxalic Acid  ......................................................................... 70

5001 Two-Dimensional Grid Photomask Standard................. 75

8010 Sand for Sand Sieve Analysis............................................. 82

8011 Gold Nanoparticles, Nominal 10 nm Diameter....22,82,90

8012 Gold Nanoparticles, Nominal 30 nm Diameter....22,82,90

8013 Gold Nanoparticles, Nominal 60 nm Diameter....22,82,90

8017 Polyvinylpyrrolidone Coated Silver.................................. 90

8027 Silicon Nanoparticles (Nominal Diameter 2 nm) .......... 90

8040 Sodium Oxalate (Na2C2O4) Reductometric Standard ... 14

8091 Scanning Electron Microscope Sharpness Standard...... 74

8095 Si1-xGex Films on Si .......................................................... 12

8096 CMOS MEMS 5-in-1 Test Chip........................................ 94

8097 EMS 5-in-1 Test Chip......................................................... 94

8281 Single-Wall Carbon Nanotubes (Dispersed,  .................. 90

8321 Peptide Mixture of Proteomics ......................................... 20

8323 Yeast Protein Extract .......................................................... 20

8327 Peptide Reference Material for Molecular 

 Mass and Purity Measurements...................................... 20

8375 Microbial Genomic DNA Standards

 for Sequencing Performance Assessment.................23,56

8391 Human DNA for Whole-Variant Assessment

 (Son of Eastern European Ashkenazim

 Jewish Ancestry)..........................................................23,56

8392 Human DNA for Whole-Genome Variant Assessment

 (Trio of Eastern European Ashkenazim 

 Jewish Ancestry).........................................................23,56

8393 Human DNA for Whole-Genome Variant

 Assessment (Son of Chinese Ancestry) ....................23,56

SRM Descriptor .............................................................Page # 

8394 Tissue Engineering Reference Scaffolds 

 for Cell Culture.............................................................22,60

8398 Human DNA for Whole-Genome Variant  Assessment 

 (Daughter of Utah/European Ancestry)...................23,56

8420 Electrolytic Iron .................................................................. 72

8441a Wheat Hardness.................................................................. 43

8445 Spray-Dried Whole Egg for Allergen Detection............. 42

8446 Perfluorinated Carboxylic Acids and 

 Perfluorooctane Sulfonamide in Methanol ..............38,39

8447 Perfluorinated Sulfonic Acids in Methanol................38,39

8455 Pyrite Ore Bioleaching Substrate ...................................... 46

8491 Sugarcane Bagasse Whole Biomass Feedstock................ 35

8492 Eastern Cottonwood Whole Biomass Feedstock............ 35

8493 Monterey Pine Whole Biomass Feedstock ...................... 35

8494 Wheat Straw Whole Biomass Feedstock.......................... 35

8495 Northern Softwood........................................................35,93

8496 Eucalyptus Hardwood...................................................35,93

8504 Transformer Oil .................................................................. 39

8505 Vanadium in Crude Oil...................................................... 34

8506a Moisture in Transformer Oil............................................. 35

8509 Moisture in Methanol......................................................... 35

8510 Moisture in Methanol......................................................... 35

8529 IAEA-S-3 (Sulfur Isotopes in Silver Sulfide)................... 17

8535a VSMOW2 Vienna Standard Mean Ocean Water 

 (Hydrogen and Oxyen Isotopes in Water)..................... 17

8536 GISP-Water.......................................................................... 17

8537 SLAP-Water Light Stable Isotopic Standard.................... 17

8539 NBS22 Oil (Carbon and Hydrogen Isotopes in Oil)...... 17

8540 IAEA-CH-7 (Carbon and Hydrogen Isotopes 

 in Polyethylene Foil)......................................................... 17

8541 USGS24 Graphite (Carbon Isotopes in Graphite).......... 17

8542 IAEA-CH-6 Sucrose (Carbon Isotopes in Sucrose) ....... 17

8543 NBS 18 (Carbon Isotopes in Carbonatite)....................... 17

8544 NBS 19 Limestone 

 (Carbon and Oxygen Isotopes in Carbonate)............... 17

8545 LSVEC (Carbon, Oxygen, and Lithium 

 Isotopes in Lithium Carbonate)...................................... 17

8546 NBS28 (Silicon and Oxygen Isotopes in Silica Sand) .... 17

8547 IAEA-N-1 (Nitrogen Isotopes in Ammonium Sulfate) . 17

8548 IAEA-N-2 (Nitrogen Isotopes in Ammonium Sulfate) . 17

8550 USGS25 (Nitrogen Isotopes in Ammonium Sulfate)..... 17

8551 USGS26 (Nitrogen Isotopes in Ammonium Sulfate)..... 17

8552 NSVEC (Nitrogen Isotopes in Gaseous Nitrogen)......... 17

8553 IAEA-S-4 (Soufre De Lacq)............................................... 17

8554 IAEA-S-1 (Sulfur Isotopes in Silver Sulfide)................... 17

8555 IAEA-S-2 (Sulfur Isotopes in Silver Sulfide)................... 17

8556 NBS123 (Sulfur Isotopes in Sphalerite) ........................... 17

8557 NBS127 (Sulfur and Oxygen Isotopes 

 in Barium Sulfate)............................................................. 17

8558 USGS32 (Nitrogen and Oxygen Isotopes in Nitrate)..... 17

8562 CO2-Heavy, Paleomarine Origin (Carbon Dioxide)..... 17

8563 CO2-Light, Petrochemical Origin (Carbon Dioxide).... 17

8564 CO2-Biogenic, Modern Biomass Origin 

 (Carbon Dioxide).............................................................. 17

8568 USGS34 Nitrogen and Oxygen Isotopes in Nitrate........ 17

8569 USGS35 Nitrogen and Oxygen Isotopes in Nitrate........ 17

8573 L-glutamic Acid USGS40(Light Carbon 

 and Nitrogen Isotopes in L-glutamic Acid)................... 17

8574 L-glutamic Acid USGS41 (Heavy Carbon 

 and Nitrogen Isotopes in L-glutamic Acid)................... 17

8599 Henderson Molybdenite .................................................... 16

8631a Medium Test Dust (MTD)................................................. 83

8632 Ultra Fine Test Dust (UFTD)............................................ 83

8642a FDA Saxitoxin Dihydrochloride Solution ..................20,42

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Numerical Index

SRM Descriptor .............................................................Page # 

8671 NISTmAb, Humanized IgG1κ

 Monoclonal Antibody ...................................................... 20

8680 Paint on Fiberboard, Nominal 1 to 2 mg/cm2 Lead ...... 24

8704 Buffalo River Sediment ............................................26,27,47

8785 Air Particulate Matter on Filter Media...................22,26,27

8786 Filter Blank for RM 8785 .........................................22,26,27

8820 Scanning Electron Microscope Scale 

 Calibration Artifact  ....................................................74,75

8850 Zeolite Y............................................................................... 27

8851 Zeolite A............................................................................... 27

8852 Ammonium ZSM-5 Zeolite............................................... 27

8983 Silicon Nitride  .................................................................... 50

8988 Titanium Dioxide Powder - Particle Size Distribution.... 82

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NIST Standard Reference Materials® 2018 Technical Catalog NIST SP 260-176

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