NIST Standard Reference Materials® 2021 Catalog NIST SP 260-176
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Table of Contents

NIST SP 260-176

January 2021

Editors: Regina R. Montgomery and 

Mary D. Crivellone

Office of Reference Materials

National Institute of Standards and Technology

Gaithersburg, MD 20899-2300

Steven J. Choquette, Director

U.S. Department of Commerce

Wynn Coggins, Acting Secretary

National Institute of Standards and Technology

James K. Olthoff, Acting NIST Director and Acting Under 

Secretary of Commerce for Standards and Technology 

Please visit our website 

www.nist.gov/srm

Standard 

Reference 

Materials® 

Catalog
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov ii

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, 2020

114 pages (January 2021)

CODEN: NSPUE2

U.S. GOVERNMENT PRINTING OFFICE

WASHINGTON: 2021
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov iii

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 

E-mail: srminfo@nist.gov

www.nist.gov/srm

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

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

certificate is the only official source. 

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

please consult our website at https://www.nist.gov/srm. 
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov iv
Table of Contents

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

Chemical Composition 

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

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

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

Low Alloy Steels (chip)..............................2

Low Alloy Steels (disk and rod)................3

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

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

Stainless Steels (chip and powder) ........4

Stainless Steels (disk)..............................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

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

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

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

Copper Base Alloys (chip, granule 

and rod)..............................................8

Copper “Benchmark” ...............................8

Copper Base Alloys (block and disk).......9 

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

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

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

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

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

Zirconium Base Alloy............................. 10

Microanalysis...............................................11

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

Synthetic Glass for Microanalysis ........ 12

Semiconductor Thin Film for the 

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

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

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

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

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

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

Spectrometry, Single Element 

Standard Solutions...................14, 15

Arsenic Species Standard Solutions.....16

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

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

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

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, Nucleic Acid Materials and 

Monoclonal Antibody...................... 23

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

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

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

Carbon Monoxide in Air......................... 30

Carbon Monoxide in Nitrogen............... 30

Carbon Dioxide in Nitrogen....................31

Continental and Oceanic Air..................31

Hydrogen Sulfide in Nitrogen.................31

Methane in Air........................................31

Propane in Air........................................ 32

Propane in Nitrogen .............................. 32

Organic Mixtures in Air or Nitrogen ...... 32

Nitrogen Oxides in Air or Nitrogen........ 32

Oxygen in Nitrogen ................................ 33

Sulfur Dioxide in Nitrogen..................... 33

Fossil & Alternative Fuels ........................... 35

Alcohols and Ethers [Oxygenates] 

in Gasoline...................................... 36

Metal Constituents in Fossil Fuels ...... 36

Sulfur, Mercury, and Chlorine 

in Fuels............................................ 36

Moisture in Oils and Alcohols ................37

Fossil Fuel: Trace Elements ...................37

Biofuels ...................................................37

Biomass Feedstock................................37

Organics..................................................... 39

Organics ................................................ 40

EPA: Organic Compounds Related to 

Water Analysis .................................41

Perfluorinated and Polyfluorinated Alkyl 

Substances (PFAS) ..........................41

Crime Scene Investigations ...................41

Food & Agriculture .................................... 43

Foods and Beverages ........................... 44

Food Contaminants and Allergens....... 44

Agricultural Materials............................ 45

Fertilizers ............................................... 45

Wheat Hardness.................................... 45

Dietary Supplement Materials ............. 45

Tobacco Related Materials ................... 45

Geological Materials 

& Ores................................................. 47

Ores........................................................ 48

Ore Bioleaching Substrate.................... 48

Clays....................................................... 48

Rock and Minerals ................................ 48

Refractories ........................................... 48

Soils, Sediments, and Sludges............. 49

Ceramics & Glasses.................................... 51

Nitrides................................................... 52

Cemented Carbides .............................. 52

Glasses .................................................. 52

Trace Elements...................................... 52

Cement ....................................................... 53

Cements and Related Materials........... 54

Portland Cement Clinkers 

(solid form) ..................................... 54

Engine Wear Materials .............................. 55

Lubricating Oils ..................................... 56

Forensics ................................................... 57

Ethanol Solutions ................................. 58

Drugs of Abuse ...................................... 58

DNA Profiling and Nucleic 

Acid Materials................................. 58

Crime Scene Investigations .................. 58
Table of Contents

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

Physical Properties

Ion Activity................................................. 59

pH Standards for Calibration................ 60

Biological Buffer Systems .................... 60

pD Calibration........................................ 60

Ion-Selective Electrode Calibration......... 60

Polymeric Properties.................................61

Polymers ................................................ 62 

Melt Flow Rate....................................... 62

Viscosity ................................................. 62

Thermodynamic

Properties.......................................... 63

Combustion Calorimetry ....................... 64

Solution Calorimetry.............................. 64

Differential Scanning Calorimetry and 

Differential Thermal Analysis......... 64

Temperature and Enthalpy of Fusion.......64 

Enthalpy and Heat Capacity ................ 64

Thermal Analysis Purity Set ................. 64

Defining Fixed Point, 

International Temperature 

Scale of 1990, ITS-90.................... 64

Reference Points ................................... 65

Freezing Point, Melting Point, and Triple 

Point Cells ...................................... 65

Thermocouple Materials and 

Thermometers ................................ 65

Thermal Conductivity of Iron, Fibrous 

Glass, and Polystyrene .................. 65

Thermal Expansion of Glass................. 65

Thermal Resistance Properties of Fibrous 

Glass and Fumed Silica Board ...... 65

Thermoelectric Materials...................... 65

Optical Properties..................................... 67

Molecular Absorption............................ 68

Fluorescence and Raman

Spectroscopy .................................. 68

Infrared Reflectance (solid form) ......... 68

Optical Rotation (powder form) ............ 68

Photography (chart form)...................... 68

Radioactivity.............................................. 69

Radiation Dosimetry ............................. 70

Radioactive Solutions .......................... 70

Radiopharmaceuticals ..........................71

Carbon-14 Dating.................................. 72

Radioactive Natural Matrix 

Materials ......................................... 72

Electrical Properties................................. 73

Electrical Resistivity and Conductivity 

of Iron ..............................................74

Superconducting Critical Current..........74

Metrology................................................... 75

Scanning Electron 

Microscope (SEM) ..........................76

Depth Profiling........................................76

Nonmagnetic Coating Thickness ......... 77

Microscale Dimensional 

Measurement Standards .............. 77

Liquids & Glasses....................................... 79

Chemical Resistance [Durability] 

of Glass .......................................... 80

Electrical Properties of Dielectrics ...... 80

Viscosity of Glass .................................. 80

Glass Liquidus Temperature ................ 80

Viscosity Fixpoints ................................. 80

Relative Stress Optical Coefficient ...... 80

Density ................................................... 80

X-Ray Diffraction ........................................81

X-Ray Diffraction.................................... 82

Engineering Materials

Sizing..........................................................83

Particle Size .......................................... 84

Cement and Coal Fly Ash Fineness ........ 85

Electrophoretic Mobility, E ................... 85

Surface Area of Powders and 

Mercury Porosimetry Standards ...... 85

Particle Count Materials ....................... 85

Surface Finish............................................ 87

Microindentation Hardness .................. 88

Abrasive Wear........................................ 88

Surface Roughness .............................. 88

Rockwell Hardness................................ 88

Fire Research ............................................89

Flooring Radiant Panel.......................... 90

Standard Cigarettes for Ignition Strength 

and Ignition Resistance Testing .... 90

Nanomaterials.............................................91

Nanomaterials....................................... 92

Miscellaneous Performance Engineering 

Materials ............................................ 93

Impact Standards: Charpy V-Notch 

Specimens ...................................... 94

Tape Adhesion Testing .......................... 95

Bleached Kraft Pulps ............................ 95

Secondary Ferrite Standards................ 95

Fracture Toughness of Ceramics.......... 96

Magnetic Moment................................. 96

Standard Bullet Replica and Cartridge 

Case ................................................ 96

Numerical Index......................................... 97
Standard Reference Materials

for Chemical Composition

 Ferrous Metals 

www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 1
Chemical Composition Ferrous Metals

www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 2

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 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) (chip form)

150 g

2160 Low-Alloy Steel (pin form) 200 g

2161 Low Alloy Steel (chip form) 150 g

2162 Low Alloy Steel (chip form) 150 g

2163 Low Alloy Steel (chip form) 150 g

2164 Low Alloy Steel (chip form) 150 g

2165 Low Alloy Steel (chip form) 150 g

2166 Low Alloy Steel (chip form) 150 g

2167 Low Alloy Steel (chip form) 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) 150 g

33e Nickel 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 Steel (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.
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov

Ferrous Metals Chemical Composition

3

Low Alloy Steels 

(disk and rod forms)

SRM Description

Unit of 

Issue

663 Chromium-Vanadium Steel (Modified) 5 rods

1134 Low-Alloy High-Silicon Steel 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

C1285 LA Steel (A242) (Modified) disk

1286 Low Alloy Steel (HY 80) disk

1761a Low Alloy Steel disk

1762a Low Alloy Steel disk

1763b 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

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)

150 g

344 15 Chromium-7 Nickel Steel

(Mo Precipitation Hardening)

150 g

345b Fe-Cr-Ni Alloy UNS J92180 150 g

346a Valve Steel 150 g

862 High-Temperature Alloy L 605 100 g

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

1246 Incoloy 800 disk

1247 Ni-Fe-Cr Alloy UNS N08825 disk

1250 High-Temperature Alloy Fe-Ni-Co disk

C2400 Fe-Cr-Ni Alloy UNS J92180 disk

See Table 101.9 on the website for more information.
Chemical Composition Ferrous Metals

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Stainless Steels 

(chip and powder 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) 

(chip form)

150 g

133b Chromium-Molybdenum Steel 

(chip form)

150 g

160b Stainless Steel, Cr 18-Ni 12-Mo 2

(AISI 316) (chip form)

150 g

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

(chip form)

100 g

339 17 Chromium-9 Nickel-0.2 Selenium Steel

(chip form)

150 g

893 Stainless Steel (SAE 405) (chip form) 150 g

895 Stainless Steel (SAE 201) (chip form) 150 g

See Table 101.6 on the website for more information.

Stainless Steels 

(disk form)

SRM Description

Unit of 

Issue

C1151a Stainless Steel, 23Cr-7Ni disk

C1152a Stainless Steel, 18Cr-11Ni disk

C1153a Stainless Steel, 17Cr-9Ni disk

C1154a Stainless Steel, 19Cr-13Ni disk

1155a Stainless Steel, Cr 18 Ni 12 Mo 2 

(AISI 316)

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 form)

disk

1223 Chromium Steel disk

1295 Stainless Steel (SAE 405) disk

C1296 Stainless Steel disk

1297 Stainless Steel (SAE 201) 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

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

Ferrous Metals Chemical Composition

5

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 and block forms)

These SRMs are for analysis of cast steels and cast irons by 

rapid instrumental methods.

SRM Description

Unit of 

Issue

C1137a White Cast Iron disk

1138a Cast Steel Standard block

C1145a White Cast Iron disk

1173 Ni-Cr-Mo-V Steel 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

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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New SRMs/RMs

Check out our SRM website (www.nist.gov/srm) for news regarding SRMs/RMs. 

This includes information about newly released SRMs, RMs, Renewals and Revisions. 

It also has links to available resources for questions or ordering SRMs. 

Would you like to add your name to our mailing list to 

receive updates on New SRMs/RMs ?

Sign up on our homepage at

https://www.nist.gov/srm under New SRMs/RMs
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Standard Reference Materials

for Chemical Composition

 Nonferrous Metals
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 8

Chemical Composition Nonferrous Metals

Aluminum Base Alloys 

(chip and disk forms) 

These SRMs are intended for analyses of aluminum alloys by 

chemical and instrumental methods. SRM 1711 is 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 (Modified) disk

1259 Aluminum Alloy 7075 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, granule 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-Nickel, 10 % (CDA 706)

“DOPED” (chip form)

100 g

880 Nickel Silver (CDA 770) (granular 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 “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

454 Unalloyed Copper XI (chip form) 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

500 Unalloyed Copper - Cu VII 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.

These SRMs are intended for optical emission, 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.
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 9

Nonferrous Metals Chemical Composition

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

C1115 Commercial Bronze A block

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

C1117 Commercial Bronze C block

1124 Free Cutting Brass (UNS C36000) disk

C1251a Phosphorus Deoxidized Copper - Cu VIII block

C1252a Phosphorus Deoxidized Copper - Cu IX block

C1253a Phosphorus Deoxidized Copper - Cu X block

1276a Cupro-Nickel (CDA 715) disk

See Table 102.4 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, disk and granule forms)

SRM Description

Unit of 

Issue

349a Waspaloy (chip form) 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)

(chip 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 Electronic and Magnetic Alloy Standard disk

1243 Ni-Cr-Co Alloy UNS N07001 disk

1244 Nickel Alloy UNS N06600 disk

C1248 Nickel-Copper Alloy disk

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

1775 Refractory Alloy MP-35-N disk

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

C2402 Hastelloy 7C disk

See Table 102.12 on the website for more information.
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 10

Chemical Composition Nonferrous Metals

Tin Base Alloys 

(powder, block and disk forms)

SRM Description

Unit of 

Issue

54d Bearing Metal (Tin Base) (powder) 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 Titanium-Base Standards

Titanium Alloy, 8 Mn (A)

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

2431 Titanium-Base Alloy (6Al-2Sn-4Zr-6Mo)

(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 (Nominal Mass 

Fraction 60 mg/kg H) (chip form)

10 g

2453a Hydrogen In Titanium Alloy (Nominal Mass

Fraction 125 mg/kg H) (pin form)

10 g

2454 Hydrogen In Titanium Alloy (Nominal Mass 

Fraction 200 mg/kg H) (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 1741 and SRM 2139 are specially prepared 

alloys primarily intended for use with spectrometric methods 

of analysis.

SRM Description

Unit of 

Issue

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

1740 Zinc-Aluminum Alloy disk

1741 Zinc-Aluminum Alloy disk

2139 Zinc-Aluminum Alloy (chip form) 100 g

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

See Table 102.17 on the website for more information.

Zirconium Base Alloy 

(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

 Microanalysis
Chemical Composition Microanalysis

www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 12

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 Glass for Microanalysis 

(microsphere form)

The glass SRM listed below is suitable for microanalysis, such 

as electron microprobe analysis (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

SRMs 2841 and 2842 are 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

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

 High-Purity Materials
Chemical Composition High-Purity Materials

www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 14

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

728 Intermediate-Purity Zinc (pellet form) 450 g

885 Refined Copper (pin form) 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

350c Benzoic Acid Acidimetric Standard 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 (Na2C2O4)

Reductometric Standard

60 g

See Table 104.3 on the website for more information.

Microchemistry (powder form)

SRM Description

Unit of 

Issue

141e Acetanilide 2 g

143d Cystine (L-Cystine) 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.

Spectrometry, Single Element 

Standard Solutions

These SRMs are intended as the primary calibration 

standards for the quantitative determinations of a single 

element, typically using inductively coupled plasma optical 

emission spectrometry and/or inductively coupled plasma 

mass spectrometry. They can also be used in conjunction 

with any other analytical technique or procedure where 

standard solutions are required. The SRM is a single-element 

solution of 50 mL with a nominal concentration of 10 mg/g 

and is provided as either a single high-density polyethylene 

bottle or in 5 x 10 mL borosilicate glass ampoules. Solutions 

may contain a nominal amount of acid, such as 10 % Nitric 

acid or 10 % Hydrochloric acid. 

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

High-Purity Materials Chemical Composition

15

SRM Description

Unit of 

Issue

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

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

SRM Description

Unit of 

Issue

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

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.
Chemical Composition High-Purity Materials

www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 16

Arsenic Species Standard Solutions 

These SRMs are intended as calibration standards to provide 

SI traceability in the measurement of total arsenic and 

arsenic species in food and clinical samples.

SRM Description

Unit of 

Issue

3030 Monomethylarsonic Acid

Standard Solution

2 x 5 mL

3031 Dimethylarsinic Acid Standard Solution 2 x 5 mL

3033 Arsenobetaine Standard Solution 2 x 5 mL

3034 Arsenocholine Standard Solution2 x 5 mL

3036 Arsenic Acid (AsV) Standard Solution 2 x 10 mL

3037 Arsenous Acid (AsIII) Standard Solution 2 x 10 mL

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

See Table 104.6 on the website for more information.

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 (SO4

2-) 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

3230 Iodine-129 Isotopic Standard (Low Level) 5 x 5 mL

3231 Iodine-129 Isotopic Standard (High Level) 5 x 5 mL

8599 Henderson Molybdenite 10 g

See Table 104.9 on the website for more information.
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov

High-Purity Materials Chemical Composition

17

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). 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

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

SRM Description

Unit of 

Issue

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

8551 USGS26 (Nitrogen Isotopes i

n 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

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.
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 18

AACC Annual Scientific Meeting 

& Clinical Lab Exposition

July 25 - 29, 2021

Anaheim Convention Center

Anaheim, CA 

AOAC 135th Annual Meeting & Exposition

August 27 - September 2, 2021 

Sheraton Boston Hotel 

Boston, MA

NIST 2021 SRM 

EXHIBIT SCHEDULE
Standard Reference Materials

for Chemical Composition

 Health & Industrial Hygiene

www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 19
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 20

Chemical Composition Health & Industrial Hygiene

Clinical Laboratory Materials 

(liquid and solid forms) 

The following SRMs are for calibrating apparatus and validating 

analytical methods used in clinical and pathology laboratories. 

Additional information on the serum materials is given in 

Table 105.2 Serum and Plasma Materials.

SRM Description

Unit of 

Issue

909c Frozen Human Serum 3 x 2 mL

911c Cholesterol 2 g

912b Urea-Clinical 25 g

913b Uric Acid 10 g

914b 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

921a 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

955d Toxic Metals and Metabolites 

in Frozen Human Blood

set (6) 

956d Electrolytes in Frozen Human Serum set (6)

965b Glucose in Frozen Human Serum set (8)

967a Creatinine in Frozen Human Serum set (4)

968f Fat-Soluble Vitamins

in Frozen Human Serum

set (2)

971a Hormones in Frozen Human Serum set (2)

972a Vitamin D Metabolites

in Frozen Human Serum

set (4)

998 Angiotensin I (Human) 0.5 mg

1400 Bone Ash 50 g

1401 Trace Metals in Frozen Human Blood set (4)

1486 Bone Meal 50 g

1595 Tripalmitin 2 g

1598a Inorganic Constituents in Animal Serum 2 vials

1949 Frozen Human Prenatal Serum set (8)

1950 Metabolites in Frozen Human Plasma 5 x 1 mL

SRM Description

Unit of 

Issue

1951c Lipids in Frozen Human Serum set (4)

1955 Homocysteine and Folate

in Frozen Human Serum 

set (3)

2365 BK Virus DNA Quantitative Standard 110 μL

2366a Cytomegalovirus DNA (Towne∆147 BAC)

for DNA Measurements

150 μL

2378 Fatty Acids in Frozen Human Serum set (3)

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)

2921 Human Cardiac Troponin Complex 5 x 115 μL

2924 C-Reactive Protein Solution 3 x 1 mL

2925 Recombinant Human Serum Albumin 

Solution (Primary Reference Calibrator 

for Urine Albumin) (Frozen)

2 x 0.5 mL

2971 24R, 25-Dihydroxyvitamin D3 

Calibration Solution

5 x 1 mL

2972a 25-Hydroxyvitamin D Calibration Solutions set (20)

2973 Vitamin D Metabolites

in Frozen Human Serum (High Level)

2 x 1 mL

3030 Monomethylarsonic Acid Standard Solution 2 x 5 mL

3031 Dimethylarsinic Acid Standard Solution 2 x 5 mL

3033 Arsenobetaine Standard Solution 2 x 5 mL

3034 Arsenocholine Standard Solution2 x 5 mL

3036 Arsenic Acid (AsV) Standard Solution 2 x 10 mL

3037 Arsenous Acid (AsIII) Standard Solution 2 x 10 mL

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)

set (3)

3672 Organic Contaminants

in Smokers' Urine (Frozen)

5 x 10 mL

3673 Organic Contaminants

in Non-Smokers' Urine (Frozen)

5 x 10 mL

3949 Folate Vitamers in Frozen Human Serum set (3)

3950 Vitamin B6 in Frozen Human Serum set (2)

8321 Peptide Mixture of Proteomics 3 x 50 μL 

8323 Yeast Protein Extract 3 x 0.2 mL

8642a FDA Saxitoxin Dihydrochloride Solution 5 x 1.2 mL

See Table 105.1 on the website for more information.
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 21

Health & Industrial Hygiene Chemical Composition

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 mL

965b Glucose in Frozen Human Serum set (8)

967a Creatinine in Frozen Human Serum set (4)

968f Fat-Soluble Vitamins, Carotenoids,

and Cholesterol in Human Serum

set (3)

971a Hormones in Frozen Human Serum 2 x 2 mL

972a Vitamin D Metabolites in

Frozen Human Serum

4 x 1 mL

1949 Frozen Human Prenatal Serum 8 x 1.8 mL

1950 Metabolites in Human Plasma 5 x 1 mL

1951c Lipids in Frozen Human Serum 4 x 1 mL

1955 Homocysteine and Folate in 

Frozen Human Serum

set (3)

1957 Organic Contaminants in

Non-Fortified Human Serum

5

1958 Organic Contaminants in

Fortified Human Serum

5

2378 Fatty Acids in Frozen Human Serum 3 x 1 mL

2921 Human Cardiac Troponin Complex 5 x 115 μL

2925 Recombinant Human Serum Albumin 

Solution (Primary Reference Calibrator 

for Urine Albumin) (Frozen)

2 x 0.5 mL

2973 Vitamin D Metabolites

in Frozen Human Serum (High Level)

2 x 1 mL

3667 Creatinine in Frozen Human Urine 10 mL

3949 Folate Vitamers in Frozen Human Serum 3 x 1 mL

3950 Vitamin B6 in Frozen Human Serum 2 x 1 mL

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 1828c consists of six concentrations of 

ethanol-water solutions in ampoules.

SRM Description

Unit of 

Issue

1828c 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

2893a 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 

(frozen form)

SRM Description

Unit of 

Issue

2668 Toxic Elements in Frozen Human Urine set (10)

2669 Arsenic Species in Frozen Human Urine set (10)

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.
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 22

Chemical Composition Health & Industrial Hygiene

Drugs of Abuse, Smoking 

Metabolites and Contaminates 

(urine)

SRM Description

Unit of 

Issue

1507b 11-Nor-Delta-9-Tetrahydrocannabinol-9-

Carboxylic Acid in Freeze-Dried Urine

set (3)

2926 Recombinant Human Insulin-like Growth 

Factor 1 (Frozen)

3 x 0.25 mL

2927 15N-Labeled Recombinant Human Insulin-like 

Growth Factor 1 (Frozen)

3 x 50 μL

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

See Table 105.7 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

2783 Air Particulate on Filter Media 

(47 mm dia)

2 filters 

plus 2 

blanks

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 1 filter

See Table 105.10 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

See Table 105.9 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

1866b Common Commercial Asbestos set (3)

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 1 g

See Table 105.12 on the website for more information.
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 23

Health & Industrial Hygiene Chemical Composition

DNA Profiling, Nucleic Acid 

Materials and Monoclonal Antibody 

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 “spike-in”, 

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 2391d 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 5 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.

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.

RM 8671 is intended primarily for use in evaluating the performance 

of methods for determining physicochemical and biophysical 

attributes of monoclonal antibodies. It also provides a representative 

test molecule for development of novel technology for therapeutic 

protein characterization.

SRM Description

Unit of 

Issue

2365 BK Virus DNA Quantitative Standard 1 vial

2366a Cytomegalovirus DNA (TowneΔ147 BAC)

for DNA Measurements

1 vial

2372a Human DNA Quantitation Standard set (3)

2373 Genomic DNA Standards for 

HER2 Measurements

set (5)

2374 DNA Sequence Library for External

RNA Controls

96 tubes

2391d PCR-Based DNA Profiling Standard 5 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)

2396 Oxidative DNA Damage Mass

Spectrometry Standards

set (10)

8366 EGFR and MET Gene Copy Number 

Standards for Cancer Measurements

set (6)

8375 Microbial Genomic DNA Standards

for Sequencing Performance Assessment

(MG-001, MG-002, MG-003, MG-004)

set (4)

8391 Human DNA for Whole-Genome

Variant Assessment (Son of Eastern

European Ashkenazi Jewish Ancestry) (HG002)

1 vial

or

10 vial

8392 Human DNA for Whole-Genome

Variant Assessment (Trio of Eastern

European Ashkenazi Jewish Ancestry) 

(HG-002, HG-003, HG-004)

3 vials

8393 Human DNA for Whole-Genome Variant

Assessment (Son of Chinese Ancestry) 

(HG-005)

1 vial

or

10 vial

8398 Human DNA for Whole-Genome Variant

Assessment (Daughter of Utah/European

Ancestry) (HG-001)

1 vial

or

10 vial

8671 NISTmAb, Humanized IgG1κ Monoclonal

Antibody

1 vial

See Table 105.8 on the website for more information.
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 24

Chemical Composition Health & Industrial Hygiene

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 Mylar 

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 μm sieve. SRM 2583 

and SRM 2584 consist of dust, 99+% of which passes a 100 

μm sieve, that was collected in vacuum cleaner bags during 

cleaning of dwelling interiors. SRM 2583 and SRM 2584 are 

certified for arsenic, chromium, cadmium, lead, and mercury. 

[Also see Category 106.] SRMs 2584, 2586, and 2587 are 

dust or soil matrices containing lead from paint.

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

SRM Description

Unit of 

Issue

2574 Lead Paint Film for Building Surfaces

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

1 + blank

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 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

2589 Powdered Paint (Nominal Mass 

Fraction 10% Lead)

35 g

2783 Air Particulate on Filter Media

(47 mm dia)

2 + 

2 Blank

See Table 105.13 on the website for more information.
Standard Reference Materials

for Chemical Composition

 Inorganics

www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 25
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 26

Chemical Composition 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 8 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

2696 Silica Fume (powder form) 70 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

2706 New Jersey Soil, Organics 

and Trace Elements

50 g

2709a San Joaquin Soil Baseline Trace Element 

Concentrations

50 g

2710a Montana I Soil Highly Elevated Trace Element 

Concentrations

50 g

2711a Montana II Soil Moderately Elevated Trace 

Element Concentrations

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 Trace Elements and Methylmercury in Mussel 

Tissue (Freeze-Dried)

25 g

8610 Mercury Isotopes in UM-Almaden 

Mono-Elemental Secondary Standard

4 x 5 mL

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.
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 27

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 Description

Unit of 

Issue

1632e 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 Sulfur in Foundry Coke 50 g

2776 Sulfur in 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.
How Well Do You Know Your Kidneys?

NIST SRM 2925 Recombinant Human Serum Albumin Solution 

(Primary Reference Calibrator for Urine Albumin) (Frozen)

March 02, 2020 

What: SRM 2925 is a frozen aqueous solution of recombinant human serum albumin (HSA). The 

SRM consists of two vials, each containing approximately 0.50 mL of frozen solution.

Why: Urine albumin is a major clinical biomarker of acute renal failure and chronic kidney disease. 

HSA is measured in human urine for clinical diagnosis of renal dysfunction and the evaluation of 

treatment efficacy.

Who: Clinical researchers and in-vitro diagnostics 

manufacturers working towards the accuracy and 

comparability of routine clinical urine albumin 

measurements.

How: SRM 2925 is intended for use as a primary 

reference calibrator for the quantification of HSA in 

human urine by liquid chromatography tandem mass 

spectrometry (LC-MS/MS) measurement methods. 

This SRM can also be used to assess the accuracy 

of calibrators and control materials used for the 

quantification of HSA using LC-MS/MS measurement 

methods. An international certified reference material 

for HSA should improve the equivalence of measurement 

results between different measurement methods and 

across geographic locations.

www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 28
Standard Reference Materials

for Chemical Composition

 Primary Gas Mixtures

www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 29
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 30

Chemical Composition 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 welldefined traceability to NIST measurement results.. 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. 

Carbon Monoxide in Air or Nitrogen

SRM Description

Unit of 

Issue

2613a Carbon Monoxide in Air 

(Nominal Amount-of-Substance 

Fraction 20 μmol/mol)

6 L

cylinder

2614a Carbon Monoxide in Air

(Nominal Amount-of-Substance

Fraction 45 μmol/mol)

6 L

cylinder

See Table 107.1(1) on the website for more information.

Carbon Monoxide in Nitrogen

SRM Description

Unit of 

Issue

1677c* Carbon Monoxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 10 μmol/mol)

6 L

cylinder

1678c* Carbon Monoxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 50 μmol/mol)

6 L

cylinder

1679c* Carbon Monoxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 100 μmol/mol)

6 L

cylinder

1680b* Carbon Monoxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 500 μmol/mol)

6 L

cylinder

1681b* Carbon Monoxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 1000 μmol/mol)

6 L

cylinder

2635a* Carbon Monoxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 25 μmol/mol)

6 L

cylinder

2636a* Carbon Monoxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 250 μmol/mol)

6 L

cylinder

2637a* Carbon Monoxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 2500 μmol/mol)

6 L

cylinder

2638a* Carbon Monoxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 5000 μmol/mol)

6 L

cylinder

2639a Carbon Monoxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 1 % mol/mol)

6 L

cylinder

2640a Carbon Monoxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 2 % mol/mol)

6 L

cylinder

2641a Carbon Monoxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 4 % mol/mol)

6 L

cylinder

2642a* Carbon Monoxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 8 % mol/mol)

6 L

cylinder

2740a Carbon Monoxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 10 % mol/mol)

6 L

cylinder

2741a Carbon Monoxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 13 % mol/mol)

6 L

cylinder

* The SRMs that are marked with * are available as NTRMs from commercial 

suppliers.

See Table 107.1(2) on the website for more information.
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 31

Primary Gas Mixtures Chemical Composition

Carbon Dioxide in Nitrogen

SRM Description

Unit of 

Issue

1674b* Carbon Dioxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 7 % mol/mol)

6 L

cylinder

2617 Carbon Dioxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 500 μmol/mol)

6 L

cylinder

2619a Carbon Dioxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 0.5 % mol/mol)

6 L

cylinder

2620a Carbon Dioxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 1 % mol/mol)

6 L

cylinder

2621a Carbon Dioxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 1.5 % mol/mol)

6 L

cylinder

2622a Carbon Dioxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 2 % mol/mol)

6 L

cylinder

2624a Carbon Dioxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 3 % mol/mol)

6 L

cylinder

2625a* Carbon Dioxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 3.5 % mol/mol)

6 L

cylinder

2745* Carbon Dioxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 16 % mol/mol)

6 L

cylinder

* The SRMs that are marked with * are available as NTRMs from commercial 

suppliers.

See Table 107.2 on the website for more information.

Continental and Oceanic Air

SRM Description

Unit of 

Issue

1720 Northern Continental Air 30 L 

cylinder

1721 Southern Oceanic Air 30 L

cylinder

1722 Halocarbons in Continental Air (Nominal 

Amount-of-Substance Fraction - Ambient)

29.5 L

cylinder

See Table 107.3 on the website for more information.

Hydrogen Sulfide in Nitrogen

SRM Description

Unit of 

Issue

2730 Hydrogen Sulfide in Nitrogen 

(Nominal Amount-of-Substance 

Fraction 5 μmol/mol)

6 L 

cylinder

2731 Hydrogen Sulfide in Nitrogen 

(Nominal Amount-of-Substance 

Fraction 20 μmol/mol)

6 L

cylinder

See Table 107.4 on the website for more information.

Methane in Air

SRM Description

Unit of 

Issue

1658a Methane in Air (Nominal Amount-ofSubstance Fraction 1 μmol/mol)

6 L 

cylinder

1659a Methane in Air (Nominal Amount-ofSubstance Fraction 10 μmol/mol)6 L

cylinder

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

cylinder

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

cylinder

See Table 107.5(1) on the website for more information.
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 32

Chemical Composition Primary Gas Mixtures

Propane in Air

SRM Description

Unit of 

Issue

1665b Propane in Air (Nominal Amount-ofSubstance Fraction 3 μmol/mol)

6 L

cylinder

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

cylinder

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

cylinder

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

cylinder

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

cylinder

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

cylinder

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

cylinder

* The SRMs that are marked with * are available as NTRMs from commercial

suppliers. 

See Table 107.5(2) on the website for more information.

Propane in Nitrogen

SRM Description

Unit of 

Issue

2644a Propane in Nitrogen (Nominal Amount-ofSubstance Fraction 250 μmol/mol)

6 L

cylinder

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

cylinder

See Table 107.5(3) on the website for more information.

Organic Mixtures in Air or Nitrogen

SRM Description

Unit of 

Issue

 1660a Methane and Propane in Air (Nominal 

Amount-of-Substance Fraction: 4 μmol/mol 

Methane; 1 μmol/mol Propane)

6 L

cylinder

See Table 107.5(4) on the website for more information.

Nitrogen Oxides in Air or Nitrogen

SRM Description

Unit of 

Issue

1683b* Nitric Oxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 50 μmol/mol)

6 L

cylinder

1684b* Nitric Oxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 100 μmol/mol)

6 L

cylinder

1685b* Nitric Oxide in Nitrogen

(Nominal Amount-of-Substance 

Fraction 250 μmol/mol)

6 L

cylinder

1686b* Nitric Oxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 500 μmol/mol)

6 L

cylinder

1687b* Nitric Oxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 1000 μmol/mol)

6 L

cylinder

1718 Nitrous Oxide in Air

(Nominal Amount-of-Substance

Fraction 1 μmol/mol)

6 L

cylinder

2627a* Nitric Oxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 5 μmol/mol)

6 L

cylinder

2628a* Nitric Oxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 10 μmol/mol)

6 L

cylinder

2629a* Nitric Oxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 20 μmol/mol)

6 L

cylinder

2630* Nitric Oxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 1500 μmol/mol)

6 L

cylinder

2631a* Nitric Oxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 3000 μmol/mol)

6 L

cylinder

2660a* Total Oxides of Nitrogen (NOx) in Air

(Nominal Amount-of-Substance

Fraction 100 μmol/mol)

6 L

cylinder

2735 Nitric Oxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 800 μmol/mol)

6 L

cylinder

2737* Nitric Oxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 500 nmol/mol)

30 L

cylinder

2738* Nitric Oxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 1000 nmol/mol)

30 L

cylinder

* The SRMs that are marked with * are available as NTRMs from commercial 

suppliers.

See Table 107.6 on the website for more information.
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 33

Primary Gas Mixtures Chemical Composition

Oxygen in Nitrogen

SRM Description

Unit of 

Issue

2657a*

Oxygen in Nitrogen (Nominal Amount-ofSubstance Fraction 2 % mol/mol)6 L

cylinder

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

cylinder

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

cylinder

* The SRMs that are marked with * are available as NTRMs from commercial 

suppliers. 

See Table 107.7 on the website for more information.

Sulfur Dioxide in Nitrogen

SRM Description

Unit of 

Issue

1661a* Sulfur Dioxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 500 μmol/mol)

6 L

cylinder

1662a* Sulfur Dioxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 1000 μmol/mol)

6 L

cylinder

1663a* Sulfur Dioxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 1500 μmol/mol)

6 L

cylinder

1664a* Sulfur Dioxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 2500 μmol/mol)

6 L

cylinder

1689 Sulfur Dioxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 5 μmol/mol)

6 L

cylinder

1693a* Sulfur Dioxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 50 μmol/mol)

6 L

cylinder

1694a* Sulfur Dioxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 100 μmol/mol)

6 L

cylinder

1696a* Sulfur Dioxide in Nitrogen

(Nominal Amount-of-Substance

Fraction 3500 μmol/mol)

6 L

cylinder

* The SRMs that are marked with * are available as NTRMs from commercial 

suppliers.

See Table 107.8 on the website for more information.
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 34

Turmeric, One of the World’s Super Foods?

SRM 3300 Curcumin Extract of Turmeric (Curcuma longa L.) Rhizome

May 05, 2020 

What: SRM 3300 is a curcuminoid extract of turmeric rhizome prepared from the same stock 

rhizome as SRM 3299 Ground Turmeric (Curcuma longa L.) Rhizome. A unit of SRM 3300

consists of 5 packets of material each containing approximately 1 g of ground curcuminoid extract 

of turmeric rhizome.

Why: Dietary supplements containing curcumin extract have been used to alleviate symptoms 

of heartburn, stomach ulcers, gallstones, inflammation, and cancer. SRM 3300 can be used to 

assist in the verification of manufacturer’s label claims of turmeric-based dietary supplements and 

as quality control during manufacturing processes.

Who: SRM 3300 will be used by 

laboratories that wish to demonstrate 

method validity, accuracy, or when 

qualifying in-house control materials.

How: Laboratories will analyze SRM 

3300 when evaluating analytical 

methods for the determination of 

curcuminoids in curcumin extracts of 

turmeric rhizomes or similar matrices.
Standard Reference Materials

for Chemical Composition

 Fossil & Alternative Fuels

www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 35
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 36

Chemical Composition 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

(Nominal Mass Fraction 0.7 %)

100 mL

1622e Sulfur in Residual Fuel Oil

(Nominal Mass Fraction 2 %)

100 mL

1623d Sulfur in Residual Fuel Oil 

(Nominal Mass Fraction 0.2 %)

100 mL

1624d Sulfur in Diesel Fuel Oil

(Nominal Mass Fraction 0.4%)

100 mL

SRM Description

Unit of 

Issue

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)

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

(Nominal Mass Fraction 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 Sulfur in Foundry Coke 50 g

2776 Sulfur in Furnace Coke 50 g

2778 Mercury in Crude Oil 5 x 10 mL

See Table 108.3 on the website for more infomration and additional resources.
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 37

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 and 8509 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

See Table 108.4 on the website for more information.

Fossil Fuel: Trace Elements 

(solid forms)

SRM Description

Unit of 

Issue

1632e 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 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

2790 Inorganic Constituents in Hardwood

Biomass Material

2 x 30 g

2791 Inorganic Constituents in Softwood

Biomass Material

2 x 30 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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Table of Contents

www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 38
Standard Reference Materials

for Chemical Composition

 Organics

www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 39
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 40

Chemical Composition 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

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 Standard 4 x 1 mL

1588c Organics in Fish Oil 5 x 1.2 mL

1597a Complex Mixture of Polycyclic Aromatic

Hydrocarbons from Coal Tar

1 x 1.3 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 10.7 mL

1958 Organic Contaminants in

Fortified Human Serum (Freeze Dried)

5 x 10.7 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

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 (Nominal 

Mass Concentration 2 μg/mL)

5 x 1.2 mL

2262 Chlorinated Biphenyl Congeners

in 2,2,4-Trimethylpentane (Nominal Mass 

Concentration 2 μg/mL)

5 x 1.2 mL

SRM Description

Unit of 

Issue

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

2274 PCB Congeners in 2,2,4-Trimethylpentane 5 x 1.2 mL

2275 Chlorinated Pesticide Solution-II

in 2,2,4-Trimethylpentane

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

2706 New Jersey Soil, Organics and Trace 

Elements

50 g

2777 Weathered Gulf of Mexico Crude Oil 

in Toluene

5 x 1.2 mL

2779 Gulf of Mexico Crude Oil 5 x 1.2 mL

2781 Domestic Sludge 40 g

2786 Fine Atmospheric Particulate Matter (<4 μm) 100 mg to 

140 mg

2787 Fine Atmospheric Particulate Matter

(<10 μm)

100 mg to 

140 mg

2860 Phthalates in Polyvinyl Chloride 2 levels,

1 blank, 

2 g each

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

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

Aerial Parts

5 x 3.3 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.
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 41

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

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 10.7 mL

2585 Organic Contaminants in House Dust 10 g

2586 Trace Elements in Soil Containing

Lead From Paint (Nominal Mass

Fraction of 500 mg/kg Lead)

55 g

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

2460a Standard Bullet Replica each

2461 Standard Cartridge Case each

See Table 109.4 on the website for more information.
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 42

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
Standard Reference Materials

for Chemical Composition

 Food & Agriculture

www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 43
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 44

Chemical Composition Food & Agriculture

Foods and Beverages - Macro 

and Micronutrients

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 cans

x 85 g

1548a Typical Diet set (2)

1549a Whole Milk Powder 5 pouches

x 10 g each

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 pouches

x 10 g each

1849a Infant/Adult Nutritional Formula I

(milk-based)

10 pouches

x 10 g each

1869 Infant/Adult Nutritional Formula II

(milk/whey/soy-based)

10 pouches

x 10 g each

1946 Lake Superior Fish Tissue 5 x 7-9 grams

1947 Lake Michigan Fish Tissue 5 x 8 grams

2383a Baby Food Composite 4 x 70 g

2384 Baking Chocolate 5 x 91 g

2385 Slurried Spinach 4 x 70 g

2387 Peanut Butter 3 x 170 g

3035 Arsenic Species in Apple Juice 5 x 1.5 mL

3233 Fortified Breakfast Cereal 60 g each

3234 Soy Flour 50 g

3252 Protein Drink Mix 5 pouches

x 10 g each

3253 Yerba Mate Leaves 2 x 10 g

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

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

3281 Cranberry (Fruit) 5 x 6 g

3282 Low-Calorie Cranberry Juice Cocktail 5 x 1.2 mL

3287 Blueberry (Fruit) 5 pouches

x 5 g each

3290 Dry Cat Food 5 pouches

x 10 g each

3530 Iodized Table Salt (Iodide) 1 bottle

x 200 g

See Table 110.1 on the website for more information.

Foods and Beverages - Other 

Components of Potential Interest

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

1565 Mycotoxins in Corn 2 x 60 g

1566b Oyster Tissue 25 g

1849a Infant/Adult Nutritional Formula I

(milk-based)

10 pouches

x 10 g each

1869 Infant/Adult Nutritional Formula II

(milk/whey/soy-based)

10 pouches

x 10 g each

1946 Lake Superior Fish Tissue 5 x 7-9 grams

1947 Lake Michigan Fish Tissue 5 x 8 grams

2387 Peanut Butter 3 x 170 g

3233 Fortified Breakfast Cereal 60 g each

3234 Soy Flour 50 g

3253 Yerba Mate Leaves 2 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 pouches

x 5 g each

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

Non-Fortified Human Milk

5 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.
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 45

Food & Agriculture Chemical Composition

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 90 g

200b Potassium Dihydrogen Phosphate

(Fertilizer Standard)

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.

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 (kernel form) 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

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 TeaContaining Solid Oral Dosage Form5 x 2.5 g

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

Aerial Parts

5 x 3.3 g

3274 Botanical Oils Containing Omega-3 and 

Omega-6 Fatty Acids

set (4)

3275 Omega-3 and Omega-6 Fatty Acids

in Fish Oil

3 ea

2 x 1.2 mL

3279 Chromium Dietary Supplement 5 x 6 g

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 MixedBerry Containing Solid Oral Dosage Form5 x 2.5 g

3291 Bilberry Extract 5 x 1 g

3299 Ground Turmeric (Curcuma longa L.) Rhizome 5 x 3 g

3300 Curcumin Extract of Turmeric 

(Curcuma longa L.) Rhizome

5 x 1 g

3530 Iodized Table Salt (Iodide) 1 x 200 g

3532 Calcium-Containing Solid Oral

Dosage Form

5 x 10 g

8037 Krill Oil 3 x 4.5 mL

See Table 110.9 on the website for more information.
Distribution of SRMs in the AOAC Food Triangle

1 W.R. Wolf, K.W. 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 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.

www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 46
Standard Reference Materials

for Chemical Composition

 Geological Materials & Ores

www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 47
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 48

Chemical Composition 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

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

423 Molybdenum Oxide Concentrate 50 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

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

2780a Hard Rock Mine Waste 50 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

198 Silica Brick 45 g

199 Silica Brick 45 g

See Table 111.6 on the website for more information.
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 49

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

2706 New Jersey Soil, Organics and Trace 

Elements

50 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

2782 Industrial Sludge 70 g

8704 Buffalo River Sediment 50 g

See Table 111.7 on the website for more information.
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 50

Small Creatures, Big Health Impact!

RM 8037 Krill Oil

May 12, 2020 

What: RM 8037 is a reference material that consists of oil made from Antarctic krill. Each unit of 

RM 8037 contains three tins, each with approximately 4.5 mL of krill oil.

Why: Krill oil contains high levels of omega-3 fatty acids, including DHA and EPA, that exist as 

phospholipids, and have many potential health benefits. In addition, phospholipids provide a 

unique challenge to fatty acid measurements which often focus on analysis of neutral lipids 

like triglycerides.

Who: Analytical laboratories that analyze phospholipid-rich dietary supplements for fatty acid 

content would use the reference material to validate methods.

How: Laboratories should use the reference material with their own fatty acid measurements to 

evaluate method performance.
Standard Reference Materials

for Chemical Composition

 Ceramics & Glasses

www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 51
Chemical Composition Ceramics & Glasses

www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 52

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 (beads) 45 g

81a Glass Sand 75 g

89 Glass, Lead Barium 45 g

92 Soda-Lime Glass, Low Boron (powder) 45 g

93a Borosilicate Glass 1 wafer

165a Glass Sand 75 g

606 Trace Elements in Basalt Glass glass 

mounted 

in epoxy

620 Soda-Lime, Flat set (3)

1411 Soft Borosilicate Glass set (10)

1412a Multicomponent Glass (disk) set (2)

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 (powder) 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

606 Trace Elements in Basalt Glass glass 

mounted 

in epoxy

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

See Table 112.4 on the website for more information.
Standard Reference Materials

for Chemical Composition

 Cement

www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 53
Chemical Composition Cement

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Chemical Composition Cement

Cements and Related Materials 

(powder form)

These portland (1880b, 1881b, 1884b, 1885b, 1886a, 1887b, 

1888b, and 1889b) 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 5 x 5 g

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

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

1889b Portland Cement

(Blended with Limestone)

5 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

2687a Portland Cement Clinker 5 x 8 g

2688 Portland Cement Clinker 3 x 10 g

See Table 113.2 on the website for more information.
Standard Reference Materials

for Chemical Composition

 Engine Wear Materials

www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 55
Chemical Composition Engine Wear Materials

www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 56

Lubricating Oils 

SRM Description

Unit of 

Issue

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.
Standard Reference Materials

for Chemical Composition

 Forensics

57 www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 58

Chemical Composition Forensics

Ethanol Solutions 

SRM Description

Unit of 

Issue

1828c Ethanol-Water Solutions set (6)

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

2893a 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 and Smoking 

Metabolites and Contaminates 

(urine)

SRM Description

Unit of 

Issue

1507b THC-9-COOH in Freeze-Dried Urine set (3)

See Table 105.7 on the website for more information.

Crime Scene Investigations

SRM Description

Unit of 

Issue

2285 Ignitable Liquids Test Mixture 5 x 1.2 mL

2460a Standard Bullet Replica each

2461 Standard Cartridge Case each

See Table 109.4 on the website for more information.

DNA Profiling and Nucleic 

Acid Materials (solid forms)

SRM Description

Unit of 

Issue

2372a Human DNA Quantitation Standard set (3)

2374 DNA Sequence Library for External

RNA Controls

96 tubes

2391d PCR-Based DNA Profiling Standard set (5)

2392 Mitochondrial DNA Sequencing (Human) set (3)

2392-I Mitochondrial DNA Sequencing

(Human HL-60 DNA)

1 vial

2396 Oxidative DNA Damage Mass

Spectrometry Standards

set (10)

8375 Microbial Genomic DNA Standards 

for Sequencing Performance Assessment

(MG-001, MG-002, MG-003, MG-004)

set (4)

See Table 105.8 on the website for more information.
Standard Reference Materials

for Chemical Composition

 Ion Activity

www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 59
Physical Properties Ion Activity

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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 60 g

186g Potassium Dihydrogen Phosphate (186-I-g) 

Disodium Hydrogen Phosphate (186-II-g)

1 x 30 g; 

1 x 45 g 

187f Sodium Tetraborate Decahydrate 

(Borax)

30 g

188 Potassium Hydrogen Tartrate 60 g

189c Potassium Tetroxalate Dihydrate 65 g

191d Sodium Bicarbonate (191d-I) 

Sodium Carbonate (191d-II)

1 x 25 g;

1 x 30 g

2193a Calcium Carbonate

[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.
Standard Reference Materials

for Chemical Composition

 Polymeric Properties

61 www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov
Physical Properties Polymeric Properties

www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 62

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 Linear Polyethylene Narrow Molecular Mass 

Distribution (Nominal Mass-Average Molar 

Mass of 13 600 g/mol)

0.3 g

1483a Linear Polyethylene Narrow Molecular Mass 

Distribution (Nominal Mass-Average Molar 

Mass of 32 100 g/mol)

0.3 g

1484a Linear Polyethylene 0.3 g

1488 Poly (Methyl Methacrylate)

(29 K Narrow Molecular Weight Distribution)

2 g

2885 Polyethylene (Mass-Average Molar Mass 

[Mw] 6 280 g/mol)

0.3 g

2886 Polyethylene (Mass-Average Molar Mass 

[Mw] 87 000 g/mol)

0.3 g

2887 Polyethylene (Mass-Average Molar Mass 

[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

2492 Bingham Paste Mixture

for Rheological Measurements

kit for

two

batches

2493 Bingham Mortar Mixture

for Rheological Measurements

kit for

two

batches

2497 Bingham Concrete Mixture for Rheological 

Measurements

kit for

one

batch

See Table 202.1 on the website for more information.
Standard Reference Materials

for Chemical Composition

 Thermodynamic Properties

www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 63
Physical Properties Thermodynamic Properties

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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.

Differential Scanning Calorimetry 

and Differential Thermal Analysis

These SRMs are intended for calibration and validation of 

differential scanning calorimeters, differential thermal 

analyzers, and similar instruments.

SRM Description

Unit of 

Issue

2232 Indium DSC Calibration Standard - 

Temperature and Enthalpy of Fusion

1 g

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.

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 (rod form) 6.4 mm D

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 419.527 °C 200 g

741a Tin Freezing-Point Standard 200 g

1746 Silver Freezing-Point Standard 300 g

See Table 203.8 on the website for more information.
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov

Ion Activity Physical Properties

65

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 Standard 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

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

See Table 203.11 on the website for more information.

Thermocouple Materials 

and Thermometers 

SRM Description

Unit of 

Issue

1749 Gold versus Platinum Thermocouple

Certified Thermometer

each

1967a High-Purity Platinum Thermoelement

(platinum wire)

0.51 mm D 

x 1 m L

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

1450e Thermal Conductivity - Fibrous Glass Board each

1453 Thermal Conductivity -

Expanded Polystyrene Board

each

8420 Electrolytic Iron 0.64 cm D 

x 5 cm L

See Table 203.15 on the website for more information.

Thermal Expansion of Metal, 

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

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
Standard Reference Materials . • L , 

, 

Standard Reference Data . • L , 

. , 

' 

Calibrations _ • L , 

Standard Reference Instruments _: • '° 

1

, 

', , 

- I I I I 

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

NIST Data Portal

https://data.nist.govgb

Calibrations Services

https://www.nist.gov/calibrations

Standard Reference Instruments

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

www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 66
Standard Reference Materials

for Chemical Composition

 Optical Properties

www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 67
Physical Properties Optical Properties

www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 68

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/Wavenumber 

Standard (Polystyrene Film)

1 card

1928 Infrared Specular High Reflectance Standard 

(Nominal Diameter 51 mm)

disk

1929 Infrared High Reflectance Specular Standard 

(Nominal Diameter 25 mm)

disk

2031c Metal-on-Fused-Silica Neutral Density

Filters (250 nm to 635 nm)

set (3)

2034 Holmium Oxide Solution Wavelength

Standard from 240 nm to 650 nm

Cuvette

2035b 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

set (3)

See Table 204.1 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.

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)

set (4)

2241 Relative Intensity Correction Standard for

Raman Spectroscopy: 785 nm Excitation

each

2242a 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

2940a Relative Intensity Correction Standard

for Fluorescence Spectroscopy:

Orange Emission

each

2941a 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.

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.
Standard Reference Materials

for Chemical Composition

 Radioactivity

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Physical Properties Radioactivity

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Physical Properties 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

4222d Carbon-14-n-hexadecane Radioactivity

Standard

5 mL

4226d Nickel-63 Radioactivity Standard 5 mL

4233f Cesium-137 Radioactivity Standard 5 mL

4239 Strontium-90 Radioactivity Standard 5 mL

4251d Barium-133 Radioactivity Standard 5 mL

4274 Holmium-166m Gamma-ray Emission

Rate Standard

5 mL

4288b Technetium-99 Radioactivity Standard 5 mL

SRM Description

Unit of 

Issue

4320b Curium-244 Radioactivity Standard 5 mL

4321d Natural Uranium Radioactivity Standard 5 mL

4322d Americium-241 Radioactivity Standard 5 mL

4323c Plutonium-238 Radioactivity Standard 5 mL

4324b Uranium-232 Radioactivity Standard 5 mL

4326a Polonium-209 Radioactivity Standard 5 mL

4328c Thorium-229 Radioactivity Standard 5 mL

4329a Curium-243 Radioactivity Standard 5 mL

4330c Plutonium-239 Radioactivity Standard 3 mL

4332e Americium-243 Radioactivity Standard 5 mL

4334j Plutonium-242 Radioactivity Standard 5 mL

4337 Lead-210 Radioactivity Standard 5 mL

4338a Plutonium-240 Radioactivity Standard 5 mL

4339b Radium-228 Radioactivity Standard 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

4370d Europium-152 Radioactivity Standard 5 mL

4915f Cobalt-60 Radioactivity Standard 5 mL

4919I Strontium-90 Radioactivity Standard 5 mL

4926e Hydrogen-3 Radioactivity Standard 20 mL

4927g Hydrogen-3 Radioactivity Standard 5 mL

4929f Iron-55 Radioactivity Standard 5 mL

4943 Chlorine-36 Radioactivity Standard 3 mL

4949d Iodine-129 Radioactivity Standard 5 mL

4965a Radium-226Radioactivity Standard 5 mL

4966a Radium-226 Radioactivity Standard 5 mL

4967a Radium-226 Radioactivity Standard 5 mL

4969 Radium-226 Radioactivity Standard 5 mL

See Table 205.4 on the website for more information.
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Radioactivity Physical Properties

71

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

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

4407L Iodine-125 Radioactivity Standard 5 mL 5 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

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

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

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

4427L Yttrium-90 Radioactivity Standard 5 mL 5 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. 

For information on the NRMAP/NIST Program, see https://www-s.nist.gov/srmors/certificates/documents/NRMAP-PharmBroch2012.pdf
Physical Properties Radioactivity

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Physical Properties 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)

SRM Description

Unit of 

Issue

4350B River Sediment Environmental 

Radioactivity Standard

85 g

4351 Human Lung Environmental

Radioactivity Standard

45 g

4352 Human Liver Environmental 

Radioactivity Standard

45 g

4353A Rocky Flats Soil Number 2 75 g

4354 Lake Sediment Environmental 

Radioactivity Standard

25 g

4355 Peruvian Soil Powder 75 g

4356 Ashed Bone Environmental 

Radioactivity Standard

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). 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) 

oroutside 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), 

then 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:

• 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.

• If your country requires an import permit, NIST 

must have a copy in order to complete your 

order and facilitate shipment with the carrier. 

• 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.

• 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.
Standard Reference Materials

for Chemical Composition

 Electrical Properties

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Physical Properties Electrical Properties

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Electrical Resistivity and 

Conductivity of Iron (rod form) 

SRM Description

Unit of 

Issue

8420 Electrolytic Iron 0.64 cm D 

x 5 cm L

See Table 206.1 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.
Standard Reference Materials

for Chemical Composition

Metrology

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Physical Properties Metrology

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Physical Properties Metrology

Scanning Electron Microscope 

(SEM) 

This RM is for calibrating the magnification scale and evaluating 

the performance of scanning electron microscopes.

SRM Description

Unit of 

Issue

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 Silicon Depth

Profile Standard

each

2134 Arsenic Implant in Silicon Depth

Profile Standard

each

2135c Ni/Cr Thin Film Depth Profile Standard 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.
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Metrology Physical Properties

77

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)

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 

RM 8820 is primarily intended to be used for X and Y scale 

(or magnification) calibrations from less than 10 times 

magnifications to more than 100 000 times magnifications 

in scanning electron microscopes (SEMs). It was designed to 

provide good contrast at low and high electron landing energies 

(accelerating voltages). Beyond testing scale calibration, it 

can be used for non-linearity measurements, especially at 

lower than 10 000 times magnifications. It can also be used for 

optical and scanning probe and other types of microscopes. 

Most SEMs require a set of calibration structures of different 

sizes to cover the full range of possible magnifications. This 

Reference Material is designed to meet that need.

SRM Description

Unit of 

Issue

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

New SRMs/RMs

Check out our SRM website (www.nist.gov/srm) for news regarding SRMs/RMs. 

This includes information about newly released SRMs, RMs, Renewals and Revisions. 

It also has links to available resources for questions or ordering SRMs. 

Would you like to add your name to our mailing list to 

receive updates on New SRMs/RMs ?

Sign up on our homepage at

https://www.nist.gov/srm under New SRMs/RMs
Standard Reference Materials

for Chemical Composition

 Liquids & Glasses

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Physical Properties Liquids & Glasses

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Physical Properties 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 Description

Unit of 

Issue

624 Lead-Silica Glass for dc Volume Resistivity 200 g

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 Hi Boron Glass Viscosity block

See Table 208.5 on the website for more information.

Relative Stress Optical Coefficient 

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.
Standard Reference Materials

for Chemical Composition

 X-Ray Diffraction

www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 81
Physical Properties X-Ray Diffraction

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Physical Properties X-Ray Diffraction

Diffraction and Scattering 

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 the α polymorph, the other high in the β polymorph 

content. SRMs 640f, 660c, 675, and 1976c 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 1976c, 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 Description Unit of Issue

640f 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 (Quantitative X-Ray Powder Diffraction Standard) 5 g

1976c 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

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

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

See Table 209.1 on the website for more information.
Standard Reference Materials

for Chemical Composition

 Sizing

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Physical Properties Sizing

Particle Size 

(powder and solid forms) 

These SRMs are intended 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 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.

SRM 1961 is monodisperse latex particles in a water 

suspension produced by the National Aeronautics and Space 

Administration (NASA).

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

SRM Description

Unit of 

Issue

1003c Glass Beads - Particle Size Distribution 

(20 μm to 50 μm diameter range)

28 g

1004b Glass Beads - Particle Size Distribution

(40 μm to 150 μm diameter range)

43 g

1017b Glass Beads - Particle Size Distribution

(100 μm to 400 μm diameter range)

70 g

1018b Glass Beads - Particle Size Distribution 

(220 μm to 750 μm diameter range)

87 g

1019b Glass Beads - Particle Size Distribution 

(750 μm to 2450 μm diameter range)

200 g

1021 Glass Beads - Particle Size Distribution 

(2 μm to 12 μm diameter range)

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

1978 Particles Size Distribution Standard

for Gravity Sedimentation

5 g

SRM Description

Unit of 

Issue

1982 Thermal Spray Powder – Particle Size 

Distribution Yttria-Stabilized Zirconia 

(Spheroidal)

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 130 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

8634 Ethylene Tetrafluoroethylene for Particle Size 

Distribution and Morphology

20 mL

8988 Titanium Dioxide Powder -

Particle Size Distribution

6 g

See Table 301.1 on the website for more information.
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Sizing Physical Properties

Cement and Coal Fly Ash Fineness 

SRM 46h is for determining 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 x 5 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

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)

40 mL

1992 Zeta Potential - Colloidal Silica

(Nominal Mass Fraction 0.15 %)

4 x 5 mL

1993 Zeta Potential – Colloidal Silica

(Nominal Mass Fraction 2.2 %)

2 x 25 mL

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

(Nominal Pore Diameter 300 nm) 

5 g

2207 Controlled Pore Glass -

BET Specific Surface Area

(Nominal Pore Diameter 18 nm)

5 g

2696 Silica Fume (powder form) 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 8631b 

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 8631b, 

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

8631b 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.

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Standard Reference Materials

for Chemical Composition

 Surface Finish

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Physical Properties 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 of 

Issue

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

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.
Standard Reference Materials

for Chemical Composition

 Fire Research

www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 89
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 90

Physical Properties 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 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 2187-16. SRM 1196a 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

1196a Standard Cigarette for Ignition

Resistance Testing (400 cigarettes)

2 cartons

See Table 305.5 on the website for more information.
Standard Reference Materials

for Chemical Composition

 Nanomaterials

www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 91
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 92

Physical Properties 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

8027 Silicon Nanoparticles

(Nominal Diameter 2 nm)

5 x 1 mL

8281 Single-Wall Carbon Nanotubes (Dispersed,

Three Length-Resolved Populations)

set (4)

See Table 308.1 on the website for more information.
Standard Reference Materials

for Chemical Composition

 Miscellaneous Performance 

www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 93
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 94

Physical Properties 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 Specimens 

(NIST-Verification, 8-mm Striker) 

set

2093 Low-Energy Charpy V-Notch Specimens 

(Self-Verification, 8-mm Striker) 

set

2096 High-Energy Charpy V-Notch Specimens 

(NIST-Verification, 8-mm Striker)

set

2097 High-Energy Charpy V-Notch Specimens 

(Self-Verification, 8-mm Striker) 

set

2098 Super-High-Energy Charpy V-Notch 

Specimens (NIST-Verification, 8-mm Striker)

set

2112 Dynamic Impact Force Verification

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 (SelfVerification, 2-mm Striker)set

2198 High-Energy Charpy V-Notch Specimens (SelfVerification, 2-mm Striker)set

2216 Miniaturized Low-Energy Charpy V-Notch 

KLST Specimens (Self-Verification)

set

2218 Miniaturized High-Energy Charpy V-Notch 

KLST Specimens (Self-Verification)

set

2219 Miniaturized Super-High-Energy Charpy 

V-Notch KLST Specimens (Self-Verification)

set

See Table 309.1 on the website for more information.
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 95

Miscellaneous Performance Physical Properties

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 

Pressure-Sensitive 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. These materials were donated by industry and 

are being distributed by the SRM Program. At this time, no 

extensive property measurements have been made on these 

materials beyond ensuring they were within the control 

limits of the normal production run. A measurement error 

study is in progress with participation by international paper 

technical laboratories. As results become available, they will 

be published and added to the Report of Investigation that 

accompanies each of these materials.

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.

Secondary Ferrite Standards 

Reference Materials RM 8480 and RM 8481, Secondary Ferrite 

Standards, are intended for the calibration of instruments 

used to measure weld metal ferrite content in accordance 

with American National Standards Institute / American 

Welding Society (ANSI/AWS) Standard A4.2 and International 

Organization of Standardization (ISO) Standard 8249. RM 8480 

consists of a low range (8 specimens distributed in the range 

of 0 FN to 30 FN) and RM 8481 is the corresponding high range 

(8 specimens distributed in the range of 30 FN to 120 FN).

Previously issued SRMs 485 to 488 are a suite of SRMs for 

Austenite in Ferrite, which were produced a little over 20 years 

ago. They are now considered technically obsolete and are not 

longer suitable for their intended purpose. NIST has more 

recently developed other reference mixtures of austenite and 

ferrite, RM 8480 Secondary Ferrite Number Standard-Low 

Range and RM 8481 Secondary Ferrite Number Standard-High 

Range, which are listed below. These are in units of FN, as 

they were designed for magnetic response measurements of 

ferrite in an austenitic matrix.

SRM Description

Unit of 

Issue

8480 Secondary Ferrite Number

Standard - Low Range

set (8)

8481 Secondary Ferrite Number

Standard - High Range

set (8)

See Table 309.6 on the website for more information.
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 96

Physical Properties Miscellaneous Performance 

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.

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 D

764a Magnetic Susceptibility Standard -

Platinum Cylinder

3 mm D x 

3.42 mm L

772a Magnetic Moment Standard - Nickel Sphere each

2853 Magnetic Moment Standard - Yttrium Iron 

Garnet Sphere

each

See Table 309.8 on the website for more information.

Standard Bullet Replica 

and Cartridge Case 

SRM Description

Unit of 

Issue

2460a Standard Bullet Replica each

2461 Standard Cartridge Case each

See Table 309.11 on the website for more information.
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 97

Numerical Index

SRM Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page # 

1d Limestone, Argillaceous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

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, 68

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

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

25d Manganese Ore. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

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

32e Carbon Low Alloy Steel (SAE 3140). . . . . . . . . . . . . . . . . . . . . . 2

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

39j Benzoic Acid (Calorimetric Standard). . . . . . . . . . . . . . . . . . . 64

45d Copper Secondary Freezing Point Standard. . . . . . . . . . . . . . 65

46h Portland Cement Fineness Standard. . . . . . . . . . . . . . . . . . . 85

49e Lead Secondary Freezing Point Standard. . . . . . . . . . . . . . . . 65

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

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

54d Bearing Metal (Tin Base) (powder). . . . . . . . . . . . . . . . . . . . . 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). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

70b Potassium Feldspar. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

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

76a Burnt Refractory (Al2O3-40%). . . . . . . . . . . . . . . . . . . . . . . . . . 48

77a Burnt Refractory (Al2O3-60%). . . . . . . . . . . . . . . . . . . . . . . . . . 48

78a Burnt Refractory (Al2O3-70%). . . . . . . . . . . . . . . . . . . . . . . . . . 48

79a Fluorspar. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

80a Soda-Lime Glass. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

81a Glass Sand. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48, 52

84l Potassium Hydrogen Phthalate. . . . . . . . . . . . . . . . . . . . . . . . 14

87a Silicon-Aluminum Alloy (chip form). . . . . . . . . . . . . . . . . . . . . . 8

88b Dolomitic Limestone. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

89 Glass, Lead Barium. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

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

92 Soda-Lime Glass, Low Boron (Powder). . . . . . . . . . . . . . . . . . 52

93a Borosilicate Glass. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

97b Flint Clay. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

98b Plastic Clay. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

99b Soda Feldspar. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

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

101g 18 Cr-10 Ni Steel (AISI 304L) (powder form). . . . . . . . . . . . . . . . . 4

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

114q Portland Cement Fineness Standard. . . . . . . . . . . . . . . . . . . 85

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

120c Phosphate Rock (Florida). . . . . . . . . . . . . . . . . . . . . . . . . 45, 48

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

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

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

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

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

SRM Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page # 

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

136f Potassium Dichromate, (Oxidimetric Standard). . . . . . . . . . . 14

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

141e Acetanilide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

143d Cystine (L-Cystine). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

152a Basic Open-Hearth Steel, 0.5 % Carbon (Tin Bearing). . . . . . . 2

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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48, 52

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

173c Titanium Alloy UNS R56400 (chip form). . . . . . . . . . . . . . . . . 10

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

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

180 Fluorspar, High Grade. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

182 Lithium Ore (Petalite). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

183 Lithium Ore (Lepidolite). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

185i Potassium Hydrogen Phthalate . . . . . . . . . . . . . . . . . . . . . . . 60

186g Potassium Dihydrogen Phosphate (186-I-g) 

 Disodium Hydrogen Phosphate (186-II-g). . . . . . . . . . . . . . . 60

187f Sodium Tetraborate Decahydrate (Borax). . . . . . . . . . . . . . . . 60

188 Potassium Hydrogen Tartrate. . . . . . . . . . . . . . . . . . . . . . . . . 60

189c Potassium Tetroxalate Dihydrate. . . . . . . . . . . . . . . . . . . . . . 60

191d Sodium Bicarbonate (191d-I) 

 Sodium Carbonate (191d-II). . . . . . . . . . . . . . . . . . . . . . . . . . 60

193 Potassium Nitrate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

194a Ammonium Dihydrogen Phosphate. . . . . . . . . . . . . . . . . . . . . 45

195 Ferrosilicon (75 % Si-High Purity Grade). . . . . . . . . . . . . . . . . . 4

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

198 Silica Brick. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

199 Silica Brick. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

200b Potassium Dihydrogen Phosphate, (Fertilizer Standard). . . . 45

211d Toluene Liquid Density Extended Range. . . . . . . . . . . . . . . . . 80

277 Tungsten Concentrate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

278 Obsidian Rock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

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

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

330a Copper Ore Mill Heads. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

331a Copper Ore Mill Tails. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

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

344 15 Chromium-7 Nickel Steel (Mo Precipitation Hardening). . . 3

345b Fe-Cr-Ni Alloy UNS J92180. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

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

349a Waspaloy (chip form). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

350c Benzoic Acid Acidimetric Standard. . . . . . . . . . . . . . . . . . . . . 14

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

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

361 AISI 4340 Steel (chip form). . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

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

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

399 Unalloyed Copper - Cu VI (chip form). . . . . . . . . . . . . . . . . . . . . 8

423 Molybdenum Oxide Concentrate. . . . . . . . . . . . . . . . . . . . . . . 48

454 Unalloyed Copper XI (chip form). . . . . . . . . . . . . . . . . . . . . . . . 8

457 Unalloyed Copper IV (solid). . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

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

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

460 Beryllium-Copper Alloy (chip form). . . . . . . . . . . . . . . . . . . . . . . 8
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 98

Numerical Index

SRM Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page # 

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). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

495 Unalloyed Copper II (solid). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

498 Unalloyed Copper V (solid) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

500 Unalloyed Copper - Cu VII. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

600 Bauxite, Australian-Darling Range. . . . . . . . . . . . . . . . . . . . . . 48

606 Trace Elements in Basalt Glass. . . . . . . . . . . . . . . . . . . . . . . . 52

607 Potassium Feldspar. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

610 Trace Elements in Glass. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

611 Trace Elements in Glass. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

612 Trace Elements in Glass. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

613 Trace Elements in Glass. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

614 Trace Elements in Glass. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

616 Trace Elements in Glass. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

617 Trace Elements in Glass. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

620 Soda Lime, Flat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

622 Soda-Lime-Silica Glass. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

624 Lead-Silica Glass for dc Volume Resistivity. . . . . . . . . . . . . . . 80

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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

634a Portland Cement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

635a Portland Cement (Blended with Slag). . . . . . . . . . . . . . . . . . . 54

640f Line Position and Line Shape Standard for Powder

 Diffraction (Silicon Powder). . . . . . . . . . . . . . . . . . . . . . . . . . 82

641 Spectroscopic Titanium-Base Standards

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

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

656 Silicon Nitride for Quantitative Analysis

 by Powder Diffraction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

660cStandard for Powder Diffraction

 (Lanthanum Hexaboride Powder). . . . . . . . . . . . . . . . . . . . . 82

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

670 Rutile Ore. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

674b X-Ray Powder Diffraction Intensity Set

 (Quantitative Powder Diffraction Standard). . . . . . . . . . . . . 82

675 Line Position, Mica (XRD). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

676a Alumina Powder for Quantitative Analysis

 by X-Ray Diffraction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

679 Brick Clay. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

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

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

688 Basalt Rock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

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

690 Iron Ore Canada. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

691 Iron Oxide, Reduced. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

692 Iron Ore, Labrador. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

693 Iron Ore (Nimba). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

694 Phosphate Rock, Western. . . . . . . . . . . . . . . . . . . . . . . . 45, 48

SRM Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page # 

695 Trace Elements in Multi-Nutrient Fertilizer. . . . . . . . . . . . . . . 45

696 Bauxite, Surinam. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

697 Bauxite, Dominican. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

698 Bauxite, Jamaican. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

705a Polystyrene (Narrow Molecular Weight Distribution). . . . 62,64

706a Polystyrene (Broad Molecular Mass Distribution). . . . . . . . . 62

709 Extra Dense Lead Glass. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

717a Hi Boron Glass Viscosity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

720 Sapphire Heat Capacity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

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

728 Intermediate-Purity Zinc (pellet form). . . . . . . . . . . . . . . . . . . 14

731L1 Borosilicate Glass - Thermal Expansion. . . . . . . . . . . . . . . . . 65

731L2 Borosilicate Glass - Thermal Expansion. . . . . . . . . . . . . . . . . 65

731L3 Borosilicate Glass - Thermal Expansion. . . . . . . . . . . . . . . . . 65

740a Zinc Freezing-Point Standard 419.527 °C. . . . . . . . . . . . . . . 64

741a Tin Freezing-Point Standard. . . . . . . . . . . . . . . . . . . . . . . . . . . 64

742 Aluminum Oxide Pyrometric Standard. . . . . . . . . . . . . . . . . . 65

762 Magnetic Moment Standard - Nickel Disk. . . . . . . . . . . . . . . 96

764a Magnetic Susceptibility Standard Platinum Cylinder. . . . . . . 96

772a Magnetic Moment Standard - Nickel Sphere. . . . . . . . . . . . . 96

781D2 Molybdenum - Heat Capacity (rod form). . . . . . . . . . . . . . . . . 64

853a Aluminum Alloy 3004 (chip form). . . . . . . . . . . . . . . . . . . . . . . 8

854a Aluminum Alloy 5182 (chip form). . . . . . . . . . . . . . . . . . . . . . . 8

855a Aluminum Casting Alloy 356 (chip form). . . . . . . . . . . . . . . . . . 8

856a Aluminum Casting Alloy 380 (chip form). . . . . . . . . . . . . . . . . . 8

858 Aluminum Alloy 6011 (chip form). . . . . . . . . . . . . . . . . . . . . . . 8

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

862 High-Temperature Alloy L 605 (chip form). . . . . . . . . . . . . . . . 8

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

864 Nickel Alloy UNS N06600 (chip form). . . . . . . . . . . . . . . . . . . . 9

865 Inconel 625 (chip form). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

866 Incoloy 800 (chip form). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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. . . . . . . . . . . . . . . . . . . . . . . . . . . 40

870 Column Performance Test Mixture

 for Liquid Chromatography. . . . . . . . . . . . . . . . . . . . . . . . . . . 40

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

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

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

875 Cupro-Nickel, 10 % (CDA 706) “DOPED” (chip form). . . . . . . . 8

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

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

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

886 Refractory Gold Ore. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

887 Cemented Carbide (W-83,Co-10). . . . . . . . . . . . . . . . . . . . . . . 52

888 Cemented Carbide (W-64,Co-25,Ta-5). . . . . . . . . . . . . . . . . . 52

889 Cemented Carbide (W-75,Co-9,Ta-5,Ti-4). . . . . . . . . . . . . . . . 52

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

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

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

897 Tracealloy A (chip form). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

899 Tracealloy C (chip form). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

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

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

912b Urea-Clinical. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

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

914b Creatinine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

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

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

917c D-Glucose (Dextrose). . . . . . . . . . . . . . . . . . . . . . . . . . . . 14, 20
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 99

Numerical Index

SRM Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page # 

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

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

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

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

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

927e Bovine Serum Albumin (7 %, solution)

 (Total Protein Solution). . . . . . . . . . . . . . . . . . . . . . . . . . 20, 21

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

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

931h Liquid Absorbance Filters, UV-VIS. . . . . . . . . . . . . . . . . . . . . . 68

935a Potassium Dichromate (Ultraviolet Absorbance Standard). . 68

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

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

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

953 Neutron Density Monitor Wire. . . . . . . . . . . . . . . . . . . . . . . . . 70

955d Toxic Metals and Metabolites in Frozen Human 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

968f Fat-Soluble Vitamins in Frozen Human Serum. . . . . . . . 20, 21

971a 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 

 (20 μm to 50 μm diameter range). . . . . . . . . . . . . . . . . . . . . 84

1004b Glass Beads - Particle Size Distribution

 (40 μm to 150 μm diameter range). . . . . . . . . . . . . . . . . . . 84

1010a Microcopy Resolution Test Charts. . . . . . . . . . . . . . . . . . . . . . 68

1012 Flooring Radiant Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

1017b Glass Beads - Particle Size Distribution

 (100 μm to 400 μm diameter range). . . . . . . . . . . . . . . . . . 84

1018b Glass (Particle Size). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

1019b Glass (Particle Size). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

1021 Glass ( Particle Size). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

1034 Unalloyed Copper. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1035 Leaded-Tin Bronze Alloy (chip form). . . . . . . . . . . . . . . . . . . . . 8

1082 Cigarette Ignition Strength Standard (200 cigarettes). . . . . . 90

1085c Wear Metals in Lubricating Oil. . . . . . . . . . . . . . . . . . . . . . . . . 56

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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1110 Red Brass B. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1111 Red Brass Standard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

SRM Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page # 

1112 Gilding Metal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1113 Gilding Metal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1114 Gilding Metal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1115 Commercial Bronze Standard for Optical

 Emission and X-ray Spectroscopic Analysis. . . . . . . . . . . . . . 9

C1115 Commercial Bronze A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1116 Commercial Bronze Standard for Optical

 Emission and X-ray Spectroscopic Analysis. . . . . . . . . . . . . . 9

1117 Commercial Bronze Standard for Optical

 Emission and X-ray Spectroscopic Analysis. . . . . . . . . . . . . . 9

C1117 Commercial Bronze C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1124 Free Cutting Brass (UNS C36000). . . . . . . . . . . . . . . . . . . . . . . 9

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 Low-Alloy High-Silicon Steel. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1135 LA Steel, High Silicon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

C1137a White Cast Iron. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1138a 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 (AISI 316). . . . . . . . . . . . . . 4

1157 Tool Steel (AISI M2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1158 High-Nickel Steel (Nominal Mass Fraction 36 % Ni). . . . . . . . 4

1159 Electronic and Magnetic Alloy Standard. . . . . . . . . . . . . . . . . . 9

1160 Electronic and Magnetic Alloy Standard . . . . . . . . . . . . . . . . . . 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

1196a Standard Cigarette for Ignition Resistance Testing. . . . . . . . 90

1218 LA Steel, High Silicon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1219 Stainless Steel, Cr16 - Ni2 (AISI 431). . . . . . . . . . . . . . . . . . . . 4

1223 Chromium Steel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1224 LA Steel, Carbon (AISI 1078). . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1225 LA Steel (AISI 4130). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

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. . . . . . . . . . . . . . . . . . . . . . . . . . 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. . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1244 Nickel Alloy UNS N06600. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1246 Incoloy 800. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1247 Ni-Fe-Cr Alloy UNS N08825 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

C1248 Nickel-Copper Alloy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1249 Ni-Cr-Fe-Nb-Mo Alloy UNS N077178. . . . . . . . . . . . . . . . . . . . . 9

1250 High-Temperature Alloy Fe-Ni-Co. . . . . . . . . . . . . . . . . . . . . . . . 3

C1251a Phosphorus Deoxidized Copper - Cu VIII. . . . . . . . . . . . . . . . 8, 9

C1252a Phosphorus Deoxidized Copper - Cu IX. . . . . . . . . . . . . . . . . 8, 9

C1253a Phosphorus Deoxidized Copper - Cu X. . . . . . . . . . . . . . . . . 8, 9

1255b Aluminum Alloy 356. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1256b Aluminum Alloy 380. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1258-I Aluminum Alloy 6011 (Modified). . . . . . . . . . . . . . . . . . . . . . . . 8

1259 Aluminum Alloy 7075. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1264a LA Steel, High Carbon (Modified). . . . . . . . . . . . . . . . . . . . . . . . 3
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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). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

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,

 (Nonmagnetic Coating on Steel). . . . . . . . . . . . . . . . . . . . . . 77

1359b Coating Thickness Standard

 (Nonmagnetic Coating on Steel). . . . . . . . . . . . . . . . . . . . . . 77

1362b Coating Thickness Standard

 (Nonmagnetic Coating on Steel). . . . . . . . . . . . . . . . . . . . . . 77

1363b Coating Thickness Standard

 (Nonmagnetic Coating on Steel). . . . . . . . . . . . . . . . . . . . . . 77

1364b Coating Thickness Standard

 (Nonmagnetic Coating on Steel). . . . . . . . . . . . . . . . . . . . . . 77

1400 Bone Ash. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

1401 Trace Metals in Frozen Human Blood. . . . . . . . . . . . . . . . . . . 20

1411 Soft Borosilicate Glass. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

1412a Multicomponent Glass (disk form). . . . . . . . . . . . . . . . . . . . . 52

1413 High Alumina Sand. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48, 52

1416 Aluminosilicate Glass for Liquidus Temperature. . . . . . . . . . 80

1450e Thermal Conductivity - Fibrous Glass Board. . . . . . . . . . . . . . 65

1452 Thermal Resistance - Fibrous Glass Blanket

 for High Precision Measurements. . . . . . . . . . . . . . . . . . . . . 65

1453 Thermal Conductivity - Expanded Polystyrene Board. . . . . . . 65

1457 Superconducting Critical Current - Nb Ti Wire. . . . . . . . . . . . 74

1459 Thermal Resistance - Fumed Silica Board. . . . . . . . . . . . . . . 65

1473c Low Density Polyethylene Resin. . . . . . . . . . . . . . . . . . . . . . . . 62

1474b Polyethylene Resin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

1475a Polyethylene, Linear. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

1476a Branched Polyethylene Resin. . . . . . . . . . . . . . . . . . . . . . . . . 62

1478 Polystyrene (Narrow Molecular Weight Distribution). . . . . . . 62

1479 Polystyrene (Narrow Molecular Weight Distribution). . . . . . . 62

1482a Linear Polyethylene Narrow Molecular Mass Distribution

 (Nominal Mass-Average Molar Mass of 13 600 g/mol). . . . 62

1483a Linear Polyethylene Narrow Molecular Mass Distribution

 (Nominal Mass-Average Molar Mass of 32 100 g/mol). . . . 62

1484a Linear Polyethylene. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

1486 Bone Meal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

1488 Poly (Methyl Methacrylate)

 (29 K Narrow Molecular Weight Distribution). . . . . . . . . . . . 62

1491a Methyl-Substituted Polycyclic Aromatic

 Hydrocarbons in Toluene. . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

1493 Polychlorinated Biphenyl Congeners

 in 2,2,4-Trimethylpentane. . . . . . . . . . . . . . . . . . . . . . . . . . . 40

1494 Aliphatic Hydrocarbons in 2,2,4-Trimethylpentane. . . . . . . . 40

1496 Unpigmented Polyethylene Gas Pipe Resin. . . . . . . . . . . . . . 62

1507b 11-Nor-Delta-9-Tetrahydrocannabinol-9-Carboxylic 

 Acid in Freeze-Dried Urine. . . . . . . . . . . . . . . . . . . . . . . 22, 58

1514 Thermal Analysis Purity Set. . . . . . . . . . . . . . . . . . . . . . . . . . . 64

1515 Apple Leaves. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

1543 GC/MS System Performance. . . . . . . . . . . . . . . . . . . . . . . . . . 40

1546a Meat Homogenate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

1547 Peach Leaves. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

SRM Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page # 

1548a Typical Diet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

1549a Whole Milk Powder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

1565 Mycotoxins in Corn. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

1566b Oyster Tissue. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

1567b Wheat Flour. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

1568b Rice Flour. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

1570a Trace Elements in Spinach Leaves. . . . . . . . . . . . . . . . . 44, 45

1573a Tomato Leaves. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

1575a Trace Elements in Pine Needles. . . . . . . . . . . . . . . . . . . . . . . 45

1577c Bovine Liver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

1588c Organics in Fish Oil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

1595 Tripalmitin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

1597a Complex Mixture of Polycyclic Aromatic

 Hydrocarbons Coal Tar. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

1598a Inorganic Constituents in Animal Serum. . . . . . . . . . . . . . . . . 20

1616b Sulfur in Kerosene (Low Level). . . . . . . . . . . . . . . . . . . . . . . . 36

1617b Sulfur in Kerosine (High Level). . . . . . . . . . . . . . . . . . . . . . . . . 36

1619b Sulfur in Residual Fuel Oil

 (Nominal Mass Fraction 0.7 %). . . . . . . . . . . . . . . . . . . . . . . 36

1622e Sulfur in Residual Fuel Oil

 (Nominal Mass Fraction 2 %). . . . . . . . . . . . . . . . . . . . . . . . . 36

1623d Sulfur in Residual Fuel Oil 

 (Nominal Mass Fraction 0.2 %). . . . . . . . . . . . . . . . . . . . . . . 36

1624d Sulfur in Diesel Fuel Oil

 (Nominal Mass Fraction 0.4%). . . . . . . . . . . . . . . . . . . . . . . . 36

1632e Trace Elements in Coal (Bituminous). . . . . . . . . . . . . . . . 27, 37

1633c Trace Elements in Coal Fly Ash. . . . . . . . . . . . . . . . . . . . . . . . 37

1634c Trace Elements in Fuel Oil. . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

1635a Trace Elements in Coal, (Subbitumimous). . . . . . . . . . . 36, 37

1640a Trace Elements in Natural Water. . . . . . . . . . . . . . . . . . . . . . . 26

1641e Mercury in Water. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

1643f Trace Elements in Water. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

1646a Estuarine Sediment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26, 49

1647f Priority Pollutant Polycyclic Aromatic

 Hydrocarbons in Acetonitrile. . . . . . . . . . . . . . . . . . . . . . . . . 40

1648a Urban Particulate Matter. . . . . . . . . . . . . . . . . . . . . . 22, 24, 26

1649b Urban Dust. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22, 40

1650b Diesel Particulate Matter. . . . . . . . . . . . . . . . . . . . . . . . . . 22,40

1655 Potassium Chloride, KCl (cr) for Solution Calorimetry. . . . . . 64

1656 Thianthrene Combustion Calorimetric Standard. . . . . . . . . . 64

1657 Synthetic Refuse-Derived Fuel

 Combustion Calorimetric Standard. . . . . . . . . . . . . . . . . . . . 64

1658a Methane in Air 

 (Nominal Amount-of-Substance Fraction 1 μmol/mol). . . . 31

1659a Methane in Air 

 (Nominal Amount-of-Substance Fraction 10 μmol/mol). . . 31

 1660a Methane and Propane in Air (Nominal Amount-of-Substance

 Fraction: 4 μmol/mol Methane; 1 μmol/mol Propane). . . . 32

1661a* Sulfur Dioxide in Nitrogen (Nominal Amount-of-Substance

 Fraction 500 μmol/mol). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

1662a* Sulfur Dioxide in Nitrogen (Nominal Amount-of-Substance

 Fraction 1000 μmol/mol). . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

1663a* Sulfur Dioxide in Nitrogen (Nominal Amount-of-Substance

 Fraction 1500 μmol/mol). . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

1664a* Sulfur Dioxide in Nitrogen (Nominal Amount-of-Substance

 Fraction 2500 μmol/mol). . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

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

* The SRMs that are marked with * are available as NIST Traceable Reference 

Materials from commercial suppliers.
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 101

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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). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

1677c* Carbon Monoxide in Nitrogen (Nominal Amount-of-Substance

 Fraction 10 μmol/mol). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

1678c* Carbon Monoxide in Nitrogen (Nominal Amount-of-Substance

 Fraction 50 μmol/mol). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

1679c* Carbon Monoxide in Nitrogen (Nominal Amount-of-Substance

 Fraction 100 μmol/mol). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

1680b* Carbon Monoxide in Nitrogen (Nominal Amount-of-Substance

 Fraction 500 μmol/mol). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

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). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

1684b* Nitric Oxide in Nitrogen (Nominal Amount-of-Substance

 Fraction 100 μmol/mol). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

1685b* Nitric Oxide in Nitrogen (Nominal Amount-of-Substance 

 Fraction 250 μmol/mol). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

1686b* Nitric Oxide in Nitrogen (Nominal Amount-of-Substance

 Fraction 500 μmol/mol). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

1687b* Nitric Oxide in Nitrogen (Nominal Amount-of-Substance

 Fraction 1000 μmol/mol). . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

1689 Sulfur Dioxide in Nitrogen (Nominal Amount-of-Substance

 Fraction 5 μmol/mol). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

1690 Polystyrene Spheres (1 μm Diameter Particle Size). . . . . . . . 84

1691 Polystyrene Spheres (0.3 μm Diameter Particle Size). . . . . . 84

1693a* Sulfur Dioxide in Nitrogen (Nominal Amount-of-Substance

 Fraction 50 μmol/mol). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

1694a* Sulfur Dioxide in Nitrogen (Nominal Amount-of-Substance

 Fraction 100 μmol/mol). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

1696a* Sulfur Dioxide in Nitrogen (Nominal Amount-of-Substance

 Fraction 3500 μmol/mol). . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

1718 Nitrous Oxide in Air (Nominal Amount-of-Substance

 Fraction 1 μmol/mol). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

1720 Northern Continental Air. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

1721 Southern Oceanic Air. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

1722 Halocarbons in Continental Air 

 (Nominal Amount-of-Substance Fraction - Ambient). . . . . . 31

1727 Anode Tin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1728 Tin Alloy (Sn-3Cu-0.5Ag). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1729 Tin Alloy (97Sn-3Pb). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1738 Zinc-Aluminum Alloy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1740 Zinc-Aluminum Alloy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1741 Zinc-Aluminum Alloy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1746 Silver Freezing-Point Standard. . . . . . . . . . . . . . . . . . . . . . . . . 64

1749 Gold versus Platinum Thermocouple

 Certified Thermometer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

1754 Low-Alloy Steel, AISI 4320. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1755 Nitrogen in Low Alloy Steel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1761a Low Alloy Steel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1762a Low Alloy Steel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

* The SRMs that are marked with * are available as NIST Traceable Reference 

Materials from commercial suppliers.

SRM Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page # 

1763b 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

1810a Linerboard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

1818a Chlorine in Lubricating Base Oils. . . . . . . . . . . . . . . . . . . . . . . 56

1819a Sulfur in Lubricating Base Oil. . . . . . . . . . . . . . . . . . . . . . . . . . 56

1828c Ethanol-Water Solutions (Six Levels). . . . . . . . . . . . . . . . 21, 58

1830 Soda Lime Float Glass 

 (Nominal Mass Fraction 0.1 % Al2O3). . . . . . . . . . . . . . . . . . 52

1831 Soda Lime Sheet Glass 

 (Nominal Mass Fraction 1.2 % Al2O3). . . . . . . . . . . . . . . . . . 52

1835 Borate Ore. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

1845a Whole Egg Powder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

1848 Lubricating Oil Additive Package. . . . . . . . . . . . . . . . . . . . . . . 56

1849a Infant/Adult Nutritional Formula I (milk-based). . . . . . . . . . . 44

1857 Tool Steel for Abrasive Wear Standard. . . . . . . . . . . . . . . . . . 88

1866b Common Commercial Asbestos. . . . . . . . . . . . . . . . . . . . . . . . 22

1869 Infant/Adult Nutritional Formula II

 (milk/whey/soy-based). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

1877 Beryllium Oxide Powder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

1878b Respirable Alpha Quartz (Quantitative

 X-Ray Powder Diffraction Standard). . . . . . . . . . . . . . . 22, 82

1879b Respirable Cristobalite (Quantitative

 X-Ray Powder Diffraction Standard) . . . . . . . . . . . . . . . 22, 82

1880b Portland Cement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

1881b Portland Cement (Blended with Fly Ash). . . . . . . . . . . . . . . . . 54

1882a Calcium Aluminate Cement. . . . . . . . . . . . . . . . . . . . . . . . . . . 54

1883a Calcium Aluminate Cement. . . . . . . . . . . . . . . . . . . . . . . . . . . 54

1884b Portland Cement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

1885b Portland Cement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

1886a Portland Cement (White Portland Cement with Low Iron). . . 54

1886b White Portland Cement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

1887b Portland Cement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

1888b Portland Cement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

1889b Portland Cement (Blended with Limestone). . . . . . . . . . . . . . 54

1893 Copper Microhardness Test Block (Knoop). . . . . . . . . . . . . . . 88

1894a Vickers Microhardness of Copper. . . . . . . . . . . . . . . . . . . . . . 88

1895 Nickel Microhardness Test Block (Knoop). . . . . . . . . . . . . . . 88

1896b Vickers Microhardness of Nickel. . . . . . . . . . . . . . . . . . . . . . . 88

1898 Titanium Dioxide Nanomaterial. . . . . . . . . . . . . . . . . . . . 85, 92

1900 Specific Surface Area Standard. . . . . . . . . . . . . . . . . . . . . . . . 85

1905 Nickel Microhardness Test Block (Knoop). . . . . . . . . . . . . . . 88

1906 Nickel Microhardness Test Block (Knoop). . . . . . . . . . . . . . . 88

1907 Nickel Microhardness Test Block (Knoop). . . . . . . . . . . . . . . 88

1908 Vickers Microhardness of Nickel. . . . . . . . . . . . . . . . . . . . . . . 88

1909 Vickers Microhardness of Nickel. . . . . . . . . . . . . . . . . . . . . . . 88

1917 Mercury Porosimetry Standard. . . . . . . . . . . . . . . . . . . . . . . . 85

1921b IR Transmission Wavelength (Polystyrene Film). . . . . . . . . . . 68

1928 Infrared Specular High Reflectance Standard 

 (Nominal Diameter 51 mm). . . . . . . . . . . . . . . . . . . . . . . . . . 68

1929 Infrared High Reflectance Specular Standard 

 (Nominal Diameter 25 mm). . . . . . . . . . . . . . . . . . . . . . . . . . 68

1932 Fluorescein Solution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

1934 Fluorescent Dyes for Quantitative Flow

 Cytometry (Visible Spectral Range). . . . . . . . . . . . . . . . . . . . 68

1941b Organics in Marine Sediment. . . . . . . . . . . . . . . . . . . . . . . . . 40

1944 New York/New Jersey Waterway Sediment. . . . . 26, 27, 40, 49
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1945 Organics in Whale Blubber. . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

1946 Lake Superior Fish Tissue. . . . . . . . . . . . . . . . . . 26, 40, 41, 44

1947 Lake Michigan Fish Tissue. . . . . . . . . . . . . . . . . . 26, 40, 41, 44

1949 Frozen Human Prenatal Serum. . . . . . . . . . . . . . . . . . . . 20, 21

1950 Metabolites in Frozen Human Plasma. . . . . . . . . . . . . . 20, 21

1951c Lipids in Frozen Human Serum. . . . . . . . . . . . . . . . . . . . . 20,21

1953 Organic Contaminants in

 Non-Fortified Human Milk. . . . . . . . . . . . . . . . . . . . . . . 40, 44

1954 Organic Contaminants in

 Fortified Human Milk. . . . . . . . . . . . . . . . . . . . . . . . . . . 40, 44

1955 Homocysteine and Folate

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

1957 Organic Contaminants in

 Non-Fortified Human Serum. . . . . . . . . . . . . . . . . . 21, 40, 41

1958 Organic Contaminants in

 Fortified Human Serum. . . . . . . . . . . . . . . . . . . . . . 21, 40, 41

1961 Polystyrene Spheres 

 (30 μm Diameter Particle Size). . . . . . . . . . . . . . . . . . . . . . . 84

1963a Polystyrene Spheres 

 (100 nm Diameter Particle Size). . . . . . . . . . . . . . . . . . 84, 92

1964 Polystyrene Spheres

 (60 nm Diameter Particle Size) . . . . . . . . . . . . . . . . . . . 84, 92

1967a High-Purity Platinum Thermoelement (platinum wire). . . . . . 65

1968 Gallium Melting-Point Standard. . . . . . . . . . . . . . . . . . . . . . . . 65

1972 1,3-Dioxolan-2-one Triple Point Standard. . . . . . . . . . . . . . . . 65

1974c Organics in Mussel Tissue (Mytilus edulis). . . . . . . . . . . . . . . 40

1975 Diesel Particulate Extract. . . . . . . . . . . . . . . . . . . . . . . . . 22, 40

1976c Instrument Response Standard

 for X-Ray Powder Diffraction. . . . . . . . . . . . . . . . . . . . . . . . . 82

1978 Particles Size Distribution Standard

 for Gravity Sedimentation. . . . . . . . . . . . . . . . . . . . . . . . . . . 84

1979 Powder Diffraction Line Profile Standard for Crystallite

 Size Analysis (Nano-Crystalline ZnO Powder). . . . . . . . . . . . 82

1980 Positive Electrophoretic (+μE)

 Mobility Standard (500 mg/L). . . . . . . . . . . . . . . . . . . . . . . . 85

1982 Thermal Spray Powder – Particle Size Distribution 

 Yttria-Stabilized Zirconia (Spheroidal). . . . . . . . . . . . . . . . . . 84

1984 Thermal Spray Powder - Particle Size

 Distribution Tungsten Carbide/Cobalt (Acicular). . . . . . . . . 84

1985 Thermal Spray Powder - Particle Size

 Distribution Tungsten Carbide/Cobalt (Spheroidal). . . . . . . 84

1990 Single Crystal Diffractometer Alignment

 Standard - Ruby Sphere. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

1991 Mix Coal Tar/Petroleum Extract

 in Methylene Chloride. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

1992 Zeta Potential - Colloidal Silica

 (Nominal Mass Fraction 0.15 %). . . . . . . . . . . . . . . . . . . . . . 85 

1993 Zeta Potential - Colloidal Silica

 (Nominal Mass Fraction 2.2 %). . . . . . . . . . . . . . . . . . . . . . . 85 

2000 Calibration Standard for High-Resolution X-Ray Diffraction. . . 82

2031c Metal-on-Fused-Silica Neutral Density

 Filters (250 nm to 635 nm). . . . . . . . . . . . . . . . . . . . . . . . . . 68

2034 Holmium Oxide Solution Wavelength Standard

 from 240 nm to 650 nm. . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

2035b Ultraviolet-Visible-Near-Infrared

 Wavelength/Wavenumber Transmission Standard. . . . . . . 68

2036 Near Infrared Wavelength/Wavenumber

 Reflection Standard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

2061 TiAl(NbW) Alloy for Microanalysis. . . . . . . . . . . . . . . . . . . 10, 12

2066 K-411 Glass Microspheres. . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2073a Sinusoidal Roughness Specimen. . . . . . . . . . . . . . . . . . . . . . 88

2074 Sinusoidal Roughness Specimen. . . . . . . . . . . . . . . . . . . . . . 88

SRM Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page # 

2082 Pathlength Absorbance Standards for

 Microliter Volume Spectrophotometers. . . . . . . . . . . . . . . . . 68

2092 Low-Energy Charpy V-Notch Specimens 

 (NIST-Verification, 8-mm Striker). . . . . . . . . . . . . . . . . . . . . . 94

2093 Low-Energy Charpy V-Notch Specimens 

 (Self-Verification, 8-mm Striker) . . . . . . . . . . . . . . . . . . . . . . 94

2096 High-Energy Charpy V-Notch Specimens 

 (NIST-Verification, 8-mm Striker). . . . . . . . . . . . . . . . . . . . . . 94

2097 High-Energy Charpy V-Notch Specimens 

 (Self-Verification, 8-mm Striker) . . . . . . . . . . . . . . . . . . . . . . 94

2098 Super-High-Energy Charpy V-Notch Specimens 

 (NIST-Verification, 8-mm Striker). . . . . . . . . . . . . . . . . . . . . . 94

2100a Fracture Toughness of Ceramic. . . . . . . . . . . . . . . . . . . . . . . . 96

2100b Fracture Toughness of Ceramic. . . . . . . . . . . . . . . . . . . . . . . . 96

2112 Dynamic Impact Force Verification Specimens

 (Self-Verification, 8-mm Striker, 24 kN nominal). . . . . . . . . 94

2113 Dynamic Impact Force Verification Specimens

 (Self-Verification, 8-mm Striker, 33 kN nominal). . . . . . . . . 94

2133 Phosphorus Implant in SiDepth Profile. . . . . . . . . . . . . . . . . 76

2134 Arsenic Implant in Silicon Depth Profile Standard. . . . . . . . . 76

2135c Ni/Cr Thin Film Depth Profile. . . . . . . . . . . . . . . . . . . . . . . . . . 76

2137 Boron Implant in Silicon Standardfor Calibration

 of Concentration in a Depth Profile. . . . . . . . . . . . . . . . . . . . 76

2139 Zinc-Aluminum Alloy (chip form). . . . . . . . . . . . . . . . . . . . . . . 10

2141 Urea. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2143 p-Fluorobenzoic Acid. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2144 m-Chlorobenzoic Acid. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2152 Urea Combustion Calorimetric Standard. . . . . . . . . . . . . . . . 64

2160 Low-Alloy Steel (pin form). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2161 Low Alloy Steel (chip form). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2162 Low Alloy Steel (chip form). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2163 Low Alloy Steel (chip form). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2164 Low Alloy Steel (chip form). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2165 Low Alloy Steel (chip form). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2166 Low Alloy Steel (chip form). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2167 Low Alloy Steel (chip form). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2168 High-Purity Iron (chip form). . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2171 LA Steel, (HSLA 100). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2175 Refractory Alloy MP-35-N (chip form). . . . . . . . . . . . . . . . . . 8, 9

2181 HEPES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

2182 HEPES Sodium Salt. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

2185 Potassium Hydrogen Phthalate pD Standard. . . . . . . . . . . . . 60

2186I Potassium Dihydrogen Phosphate. . . . . . . . . . . . . . . . . . . . . . 60

2186II Disodium Hydrogen Phosphate. . . . . . . . . . . . . . . . . . . . . . . . 60

2191a Sodium Bicarbonate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

2192a Sodium Carbonate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

2193a Calcium Carbonate [used as saturated Ca(OH)2 solution]. . . 60

2197 Low-Energy Charpy V-Notch Specimens 

 (Self-Verification, 2-mm Striker). . . . . . . . . . . . . . . . . . . . . . . 94

2198 High-Energy Charpy V-Notch Specimens 

 (Self-Verification, 2-mm Striker). . . . . . . . . . . . . . . . . . . . . . . 94

2201 Sodium Chloride (Ion-Selective). . . . . . . . . . . . . . . . . . . . . . . . 60

2203 Potassium Fluoride

 (Standard for Ion-Selective Electrodes). . . . . . . . . . . . . . . . . 60

2206 Controlled Pore Glass - BET Specific Surface

 Area (300 nm). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

2207 Controlled Pore Glass - BET Specific Surface

Area (Nominal Pore Diameter 18 nm). . . . . . . . . . . . . . . . . . . 85

2214 Isooctane Liquid Density. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

2216 Miniaturized Low-Energy Charpy V-Notch KLST Specimens

 (Self-Verification). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

2218 Miniaturized High-Energy Charpy V-Notch KLST Specimens

 (Self-Verification). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
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2219 Miniaturized Super-High-Energy Charpy V-Notch KLST

 Specimens (Self-Verification). . . . . . . . . . . . . . . . . . . . . . . . . 94

2232 Indium DSC Calibration Standard - Temperature 

 and Enthalpy of Fusion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

2234 Gallium for Thermal Analysis. . . . . . . . . . . . . . . . . . . . . . . . . . 64

2235 Bismuth for Thermal Analysis. . . . . . . . . . . . . . . . . . . . . . . . . 64

2241 Relative Intensity Correction Standard for

 Raman Spectroscopy: 785 nm Excitation. . . . . . . . . . . . . . . 68

2242a Relative Intensity Correction Standard for

 Raman Spectroscopy: 532 nm Excitation. . . . . . . . . . . . . . . 68

2244 Relative Intensity Correction Standard for

 Raman Spectroscopy: 1064 nm Excitation. . . . . . . . . . . . . . 68

2245 Relative Intensity Correction Standard for

 Raman Spectroscopy:633 nm Excitation. . . . . . . . . . . . . . 68

2246 Relative Intensity Correction Standard for

 Raman Spectroscopy: 830 nm Excitation. . . . . . . . . . . . . . . 68

2257 PBDE Congeners in 2,2,4-Trimethylpentane. . . . . . . . . . . . . . 40

2258 BDE 209 in 2,2,4-Trimethylpentane. . . . . . . . . . . . . . . . . . . . 40

2259 PCB Congeners in 2,2,4-Trimethylpentane. . . . . . . . . . . . . . . 40

2260a Aromatic Hydrocarbon in Toluene. . . . . . . . . . . . . . . . . . . . . . 40

2261 Chlorinated Pesticides in Hexane 

 (Nominal Mass Concentration 2 μg/mL). . . . . . . . . . . . . . . 40

2262 Chlorinated Biphenyl Cogeners in 2,2,4-Trimethylpentane 

 (Nominal Mass Concentration 2 μg/mL). . . . . . . . . . . . . . . 40

2266 Hopanes and Steranes in 2,2,4 Trimethylpentane. . . . . . . . 40

2269 Perdeuterated PAH-I Solution in Hexane/Toluene. . . . . . . . . 40

2270 Perdeuterated PAH-II Solution in Hexane/Toluene. . . . . . . . . 40

2274 PCB Congener Solution-II in 2,2,4-Trimethylpentane . . . . . . 40

2275 Chlorinated Pesticide Solution-II in Isooctane. . . . . . . . . . . . 40

2285 Ignitable Liquids Test Mixture. . . . . . . . . . . . . . . . . . . . . 41, 58

2294 Reformulated Gasoline

 (Nominal Mass Fraction 11 % MTBE). . . . . . . . . . . . . . . . . . 36

2295 Reformulated Gasoline

 (Nominal Mass Fraction 15 % MTBE). . . . . . . . . . . . . . . . . . 36

2296 Reformulated Gasoline

 (Nominal Mass Fraction 13 % ETBE). . . . . . . . . . . . . . . . . . . 36

2297 Reformulated Gasoline

 (Nominal Mass Fraction 10 % Ethanol). . . . . . . . . . . . . . . . . 36

2298 Sulfur in Gasoline (High-Octane). . . . . . . . . . . . . . . . . . . . . . . 36

2299 Sulfur in Gasoline (Reformulated). . . . . . . . . . . . . . . . . . . . . . 36

2365 BK Virus DNA Quantitative Standard. . . . . . . . . . . . . . . . 20, 23

2366a Cytomegalovirus DNA (Towne∆147 BAC) 

 for DNA Measurements. . . . . . . . . . . . . . . . . . . . . . . . . 20, 23 

2372a Human DNA Quantitation Standard. . . . . . . . . . . . . . . . 23, 58

2373 Genomic DNA Standards for HER2 Measurements. . . . . . . . 23

2374 DNA Sequence Library for External RNA Controls. . . . . 23, 58

2377 Fatty Acid Methyl Esters in 2,2,4-Trimethylpentane. . . . 37, 40

2378 Fatty Acids in Frozen Human Serum. . . . . . . . . . . . . . . . 20, 21

2383a Baby Food Composite. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

2384 Baking Chocolate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

2385 Slurried Spinach. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26, 44

2387 Peanut Butter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26, 44

2389a Amino Acids in 0.1 mol/L Hydrochloric Acid. . . . . . . . . . . . . . 20

2391d PCR-Based DNA Profiling Standard. . . . . . . . . . . . . . . . . 23, 58

2392 Mitochondrial DNA Sequencing (Human). . . . . . . . . . . . 23, 58

2392-I Mitochondrial DNA Sequencing (Human HL-60 DNA). . 23, 58

2393 CAG Repeat Length Mutation in Huntington’s Disease. . . . . 23

2396 Oxidative DNA Damage Mass Spectrometry Standards. . 23, 58

C2400 Fe-Cr-Ni Alloy UNS J92180. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

C2402 Hastelloy 7C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

C2415a Battery Lead (UNS 52770). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

C2416 Bullet Lead. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

SRM Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page # 

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. . . . . . . . . . . . 37, 45, 48, 54

2430 Scheelite Ore. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

2431 Titanium-Base Alloy (6Al-2Sn-4Zr-6Mo) (chip form). . . . . . . . 10

2432 Titanium-Base Alloy (10V-2Fe-3Al) (chip form). . . . . . . . . . . . 10

2433 Titanium-Base Alloy (8Al-1Mo-1V) (chip form). . . . . . . . . . . . 10

2445 Mercury in Iodinated Activated Carbon. . . . . . . . . . . . . . . . . . 27

2448 Mercury in Brominated Activated Carbon. . . . . . . . . . . . . . . . 27

2451 Fine Carbon (Activated) From Cyanide Ore Leaching. . . 26, 27

2452 Hydrogen In Titanium Alloy 

 (Nominal Mass Fraction 60 mg/kg H) (chip form). . . . . . . . 10

2453a Hydrogen In Titanium Alloy

 (Nominal Mass Fraction 125 mg/kg H) (pin form). . . . . . . . 10

2454 Hydrogen In Titanium Alloy 

 (Nominal Mass Fraction 200 mg/kg H) (chip form). . . . . . . 10

2460a Standard Bullet Replica. . . . . . . . . . . . . . . . . . . . . . . 41, 58, 96

2461 Standard Cartridge Case. . . . . . . . . . . . . . . . . . . . . . 41, 58, 96

2483 Single-Wall Carbon Nanotubes (Raw Soot). . . . . . . . . . . 12, 92

2484 Multiwall Carbon Nanotubes (Raw Soot). . . . . . . . . . . . . . . . 92

2492 Bingham Paste Mixture for Rheological Measurements. . . . 62

2493 Bingham Mortar Mixture for Rheological Measurements. . . 62

2497 Bingham Concrete Mixture for Rheological Measurements. . . 62

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

 Fluorescence Analyzers - Blank (Color: White). . . . . . . . . . . 24

2571 Lead Paint Film for Building Surfaces

 (Nominal Pb 3.5 mg/cm2)(Color: Yellow). . . . . . . . . . . . . . . 24

2572 Lead Paint Film for Building Surfaces

 (Nominal Pb 1.6 mg/cm2)(Color: Orange). . . . . . . . . . . . . . 24

2573 Lead Paint Film for Building Surfaces

 (Nominal Pb 1.0 mg/cm2)(Color: Red). . . . . . . . . . . . . . . . . 24

2574 Lead Paint Film for Building Surfaces

 (Nominal Pb 0.7 mg/cm2)(Color: Gold). . . . . . . . . . . . . . . . 24

2575 Lead Paint Film for Building Surfaces

 (Nominal Pb 0.3 mg/cm2)(Color: Green). . . . . . . . . . . . . . . 24

2576 Lead Paint Film for Building Surfaces

 (Nominal Pb 5.6 mg/cm2)(Color: Blue). . . . . . . . . . . . . . . . . 24

2579a Lead Paint Films For Building Surfaces

 (SRM 2570 through SRM 2575). . . . . . . . . . . . . . . . . . . . . . 24

2580 Powdered Paint (Nominal Mass Fraction 4 % Lead). . . . . . . 24

2581 Powdered Paint (Nominal Mass Fraction 0.5 % Lead). . . . . . 24

2582 Powdered Paint

 (Nominal Mass Fraction 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 1% Lead). . . . . . . . . . . 22, 24, 26

2585 Organic Contaminants in House Dust. . . . . . . . . . . . 22, 40, 41

2586 Trace Elements in Soil Containing Lead From Paint

 (Nominal Mass Fraction 500 mg/kg Lead). . . . 24, 26, 41, 49

2587 Trace Elements in Soil 

 (Nominal Mass Fraction of 3000 mg/kg Lead). . . 24, 26, 49

2589 Powdered Paint

 (Nominal Mass Fraction 10% Lead). . . . . . . . . . . . . . . . . . . 24

2613a Carbon Monoxide in Air 

 (Nominal Amount-of-Substance Fraction 20 μmol/mol). . . 30
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 104

Numerical Index

SRM Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page # 

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). . 31

2619a Carbon Dioxide in Nitrogen

 (Nominal Amount-of-Substance Fraction 0.5 % mol/mol). . . 31

2620a Carbon Dioxide in Nitrogen

 (Nominal Amount-of-Substance Fraction 1 % mol/mol). . . 31

2621a Carbon Dioxide in Nitrogen

 (Nominal Amount-of-Substance Fraction 1.5 % mol/mol). . . 31

2622a Carbon Dioxide in Nitrogen

 (Nominal Amount-of-Substance Fraction 2 % mol/mol). . . 31

2624a Carbon Dioxide in Nitrogen

 (Nominal Amount-of-Substance Fraction 3 % mol/mol). . . 31

2625a* Carbon Dioxide in Nitrogen

 (Nominal Amount-of-Substance Fraction 3.5 % mol/mol). . . 31

2627a* Nitric Oxide in Nitrogen

 (Nominal Amount-of-Substance Fraction 5 μmol/mol). . . . 32

2628a* Nitric Oxide in Nitrogen

 (Nominal Amount-of-Substance Fraction 10 μmol/mol). . . 32

2629a* Nitric Oxide in Nitrogen

 (Nominal Amount-of-Substance Fraction 20 μmol/mol). . . 32

2630* Nitric Oxide in Nitrogen

 (Nominal Amount-of-Substance Fraction 1500 μmol/mol). . . 32

2631a* Nitric Oxide in Nitrogen

 (Nominal Amount-of-Substance Fraction 3000 μmol/mol). . . 32

2635a* Carbon Monoxide in Nitrogen

 (Nominal Amount-of-Substance Fraction 25 μmol/mol). . . 30

2636a* Carbon Monoxide in Nitrogen

 (Nominal Amount-of-Substance Fraction 250 μmol/mol). . 30

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

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). . . 33

2658a* Oxygen in Nitrogen 

 (Nominal Amount-of-Substance Fraction 10 % mol/mol). . 33

2659a* Oxygen in Nitrogen 

 (Nominal Amount-of-Substance Fraction 21 % mol/mol). . 33

2660a* Total Oxides of Nitrogen (NOx) in Air

 (Nominal Amount-of-Substance Fraction 100 μmol/mol). . 32

2668 Toxic Elements in Frozen Human Urine. . . . . . . . . . . . . . 20, 21

2669 Arsenic Species in Frozen Human Urine. . . . . . . . . . . . . 20, 21

2682c Subbituminous Coal (Nominal Mass Fraction 0.5 % Sulfur). . . 36

* The SRMs that are marked with * are available as NIST Traceable Reference 

Materials from commercial suppliers.

SRM Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page # 

2683c Bituminous Coal (Nominal Mass Fraction 2 % Sulfur) . . . . . 36

2684c Bituminous Coal (Nominal Mass Fraction 3 % Sulfur). . . . . . 36

2685c Bituminous Coal (Nominal Mass Fraction 5 % Sulfur). . . . . . 36

2686a Portland Cement Clinker. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

2687a Portland Cement Clinker. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

2688 Portland Cement Clinker. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

2689 Coal Fly Ash. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37, 85

2690 Coal Fly Ash. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37, 85

2691 Coal Fly Ash. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37, 85

2693 Bituminous Coal (Nominal Mass Fraction 0.5 % Sulfur). . . . 36

2696 Silica Fume (powder form). . . . . . . . . . . . . . . . . . 26, 52, 54, 85

2700 Hexavalent Chromium in Contaminated Soil

 (Low Level). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26, 49

2701 Hexavalent Chromium in Contaminated Soil

 (High Level). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26, 49

2702 Inorganics in Marine Sediment. . . . . . . . . . . . . . . . . . . . 26, 49

2703 Sediment for Solid Sampling

 (Small Sample) Analytical Techniques. . . . . . . . . . . . . . 26, 49

2706 New Jersey Soil, Organics and Trace Elements. . . . . 26,40,49

2709a San Joaquin Soil Baseline 

 Trace Element Concentrations. . . . . . . . . . . . . . . . . . . . . 26,49

2710a Montana I Soil Highly Elevated 

 Trace Element Concentrations. . . . . . . . . . . . . . . . . . . . . 26,49

2711a Montana II Soil Moderately Elevated 

 Trace Element Concentrations. . . . . . . . . . . . . . . . . . . . . 26,49

2716 Sulfur in Gasoline (<1 mg/kg). . . . . . . . . . . . . . . . . . . . . . . . . 36

2717a Sulfur in Residual Fuel Oil (Nominal Mass Fraction 3 %). . . . 36

2718a Green Petroleum Coke. . . . . . . . . . . . . . . . . . . . . . . . 27, 36, 37

2719 Calcined Petroleum Coke. . . . . . . . . . . . . . . . . . . . . . 27, 36, 37

2720 Sulfur in Di-n-Butyl Sulfide. . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

2721 Crude Oil (Light-Sour). . . . . . . . . . . . . . . . . . . . . . . . . . . . 36, 37

2722 Crude Oil (Heavy Sweet). . . . . . . . . . . . . . . . . . . . . . . . . . 36, 37

2723b Sulfur in Diesel Fuel Oil

 (Nominal Mass Fraction 10 mg/kg). . . . . . . . . . . . . . . . . . . 36

2730 Hydrogen Sulfide in Nitrogen 

 (Nominal Amount-of-Substance Fraction 5 μmol/mol). . . . 31

2731 Hydrogen Sulfide in Nitrogen 

 (Nominal Amount-of-Substance Fraction 20 μmol/mol). . . 31

2735 Nitric Oxide in Nitrogen

 (Nominal Amount-of-Substance Fraction 800 μmol/mol). . 32

2737* Nitric Oxide in Nitrogen

 (Nominal Amount-of-Substance Fraction 500 nmol/mol). . 32

2738* Nitric Oxide in Nitrogen

 (Nominal Amount-of-Substance Fraction 1000 nmol/mol). . . 32

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). . . 31

2750 Methane in Air 

 (Nominal Amount-of-Substance Fraction 50 μmol/mol). . . 31

2751 Methane in Air 

 (Nominal Amount-of-Substance Fraction 100 μmol/mol). . . 31

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

 (Nominal Mass Fraction 40 mg/kg). . . . . . . . . . . . . . . . . . . 36
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Numerical Index

SRM Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page # 

2771 Sulfur in Diesel Fuel Blend Stock. . . . . . . . . . . . . . . . . . . . . . 36

2772 B100 Biodiesel (Soy-Based). . . . . . . . . . . . . . . . . . . . . . . . . . 37

2773 B100 Biodiesel (Animal-Based). . . . . . . . . . . . . . . . . . . . 36, 37

2775 Sulfur in Foundry Coke. . . . . . . . . . . . . . . . . . . . . . . . . . . 27, 36

2776 Sulfur in Furnace Coke. . . . . . . . . . . . . . . . . . . . . . . . . . . 27, 36

2777 Weathered Gulf of Mexico Crude Oil in Toluene. . . . . . . . . . . 40

2778 Mercury in Crude Oil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

2779 Gulf of Mexico Crude Oil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

2780a Hard Rock Mine Waste. . . . . . . . . . . . . . . . . . . . . . . . 26, 48,49

2781 Domestic Sludge. . . . . . . . . . . . . . . . . . . . . . . . . . 26, 40, 41, 49

2782 Industrial Sludge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26, 49

2783 Air Particulate on Filter Media (47 mm dia). . . . . . . 22, 24, 26

2786 Fine Atmospheric Particulate Matter

 (Mean Particle Diameter < 4 μm). . . . . . . . . . . . . . . . . 22, 40

2787 Fine Atmospheric Particulate Matter

 (Mean Particle Diameter < 10 μm). . . . . . . . . . . . . . . . 22, 40

2790 Inorganic Constituents in Hardwood Biomass Material. . . . . 37

2791 Inorganic Constituents in Softwood Biomass Material. . . . . 37

2798a Vickers Microhardness of Nickel. . . . . . . . . . . . . . . . . . . . . . . 88

2806b Medium Test Dust (MTD) in Hydraulic Fluid. . . . . . . . . . . . . . 85

2810 Rockwell C Hardness - Low Range. . . . . . . . . . . . . . . . . . . . . . 88

2811 Rockwell C Hardness - Mid Range. . . . . . . . . . . . . . . . . . . . . . 88

2812 Rockwell C Scale Hardness - High Range. . . . . . . . . . . . . . . . 88

2816 Rockwell Hardness 15N Scale - Low Range

 (Nominal 72 HR15N). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

2817 Rockwell Hardness 15N Scale - Mid Range

 (Nominal 83 HR15N). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

2818 Rockwell Hardness 15N Scale - High Range

 (Nominal 91 HR15N). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

2819 Rockwell Hardness 30N Scale - Low Range

 (Nominal 45 HR30N). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

2820 Rockwell Hardness 30N Scale - Mid Range

 (Nominal 64 HR30N). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

2821 Rockwell Hardness 30N Scale - High Range

 (Nominal 79 HR30N). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

2828 Knoop Microhardness of Steel. . . . . . . . . . . . . . . . . . . . . . . . 88

2829 Vickers Microhardness of Steel. . . . . . . . . . . . . . . . . . . . . . . . 88

2830 Knoop Hardness of Ceramics. . . . . . . . . . . . . . . . . . . . . . . . . 88

2831 Vickers Hardness of Ceramics and Hardmetals. . . . . . . . . . . 88

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

2853 Magnetic Moment Standard - Yttrium Iron Garnet Sphere. . 96

2860 Phthalates in Polyvinyl Chloride. . . . . . . . . . . . . . . . . . . . . . . . 40

2885 Polyethylene 

 (Mass-Average Molar Mass [Mw] 6 280 g/mol). . . . . . . . . . 62

2886 Polyethylene 

 (Mass-Average Molar Mass [Mw] 87 000 g/mol). . . . . . . . . 62

2887 Polyethylene 

 (Mass-Average Molar Mass [Mw] 196 400 g/mol). . . . . . . 62

2890 Water Saturated 1-Octanol. . . . . . . . . . . . . . . . . . . . . . . . . . . 37

2891 Ethanol-Water Solution

 (Nominal Mass Fraction 0.02 %). . . . . . . . . . . . . . . . . . 21, 58

2892 Ethanol-Water Solution

 (Nominal Mass Fraction 0.04 %). . . . . . . . . . . . . . . . . . 21, 58

2893a Ethanol-Water Solution

 (Nominal Mass Fraction 0.08 %). . . . . . . . . . . . . . . . . . 21, 58

2894 Ethanol-Water Solution

 (Nominal Mass Fraction 0.1 %). . . . . . . . . . . . . . . . . . . 21, 58 

2895 Ethanol-Water Solution (Nominal Mass Fraction 0.2 %). . 21, 58

2896 Ethanol-Water Solution (Nominal Mass Fraction 0.3 %). . 21, 58

SRM Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page # 

2897a Ethanol Water Solution (Nominal Mass Fraction 2 %). . 21, 58

2898a Ethanol Water Solution (Nominal Mass Fraction 6 %). . 21, 58

2899a Ethanol-Water Solution (Nominal Mass Fraction 25 %). . 21, 58

2900 Ethanol-Water Solution (Nominal Mass Fraction 95.6 %). . 21, 58

2910b Hydroxyapatite. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2921 Human Cardiac Troponin Complex. . . . . . . . . . . . . . . . . 20, 21

2924 C-Reactive Protein Solution. . . . . . . . . . . . . . . . . . . . . . . . . . . 20

2925 Recombinant Human Serum Albumin Solution (Primary 

 Reference Calibrator for Urine Albumin) (Frozen). . . . . 20, 21

2926 Recombinant Human Insulin-like Growth Factor 1 (Frozen). . . 22

2927 15N-Labeled Recombinant Human Insulin-like 

 Growth Factor 1 (Frozen). . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2940a Relative Intensity Correction Standard

 for Fluorescence Spectroscopy: Orange Emission. . . . . . . 68

2941a Relative Intensity Correction Standard

 for Fluorescence Spectroscopy: Green Emission. . . . . . . . 68

2942 Relative Intensity Correction Standard

 for Fluorescence Spectroscopy: Ultraviolet Emission. . . . . 68

2943 Relative Intensity Correction Standard

 for Fluorescence Spectroscopy: Blue Emission. . . . . . . . . . 68

2944 Relative Intensity Correction Standard

for Fluorescence Spectroscopy: Red Emission. . . . . . . . . . . 68

2950a Respirable Alpha Quartz on Filter Media

 (Nominal Mass of Alpha Quartz: 5 μg - 500 μg). . . . . . . . . . 22

2960 Respirable Cristobalite on Filter Media

 (Nominal Mass of Cristobalite: 5 μg - 250 μg). . . . . . . . . . . 22

2971 24R, 25-Dihydroxyvitamin D3 Calibration Solution. . . . . . . . 20

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). . . . 40

2975 Diesel Particulate Matter. . . . . . . . . . . . . . . . . . . . . . . . . 22, 40

2976 Trace Elements and Methylmercury in Mussel Tissue 

 (Freeze-Dried). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

3030 Monomethylarsonic Acid Standard Solution. . . . . . . . . . 16, 20

3031 Dimethylarsinic Acid Standard Solution. . . . . . . . . . . . . 16, 20

3033 Arsenobetaine Standard Solution. . . . . . . . . . . . . . . . . . 16, 20

3034 Arsenocholine Standard Solution. . . . . . . . . . . . . . . . . 16, 20

3035 Arsenic Species in Apple Juice. . . . . . . . . . . . . . . . . . . . . . . . . 44

3036 Arsenic Acid (AsV) Standard Solution. . . . . . . . . . . . . . . 16, 20

3037 Arsenous Acid (AsIII) Standard Solution. . . . . . . . . . . . . 16, 20

3060 Monoester Phthalates in Acetonitrile. . . . . . . . . . . . . . . . . . . 40

3074 Phthalates in Methanol. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

3077 Aroclor 1242 in Transformer Oil. . . . . . . . . . . . . . . . . . . . . . . . 41

3079 Aroclor 1254 in Transformer Oil. . . . . . . . . . . . . . . . . . . . . . . 41

3080 Aroclor 1260 in Transformer Oil. . . . . . . . . . . . . . . . . . . . . . . 41

3101a Aluminum (Al) Standard Solution. . . . . . . . . . . . . . . . . . . . . . 14

3102a Antimony (Sb) Standard Solution. . . . . . . . . . . . . . . . . . . . . . . 14

3103a Arsenic (As) Standard Solution. . . . . . . . . . . . . . . . . . . . 14, 16

3104a Barium (Ba) Standard Solution. . . . . . . . . . . . . . . . . . . . . . . . 14

3105a Beryllium (Be)Standard Solution. . . . . . . . . . . . . . . . . . . . . . 14

3106 Bismuth (Bi) Standard Solution. . . . . . . . . . . . . . . . . . . . . . . . 14

3107 Boron (B) Standard Solution. . . . . . . . . . . . . . . . . . . . . . . . . . 14

3108 Cadmium (Cd) Standard Solution. . . . . . . . . . . . . . . . . . . . . . 14

3109a Calcium (Ca) Standard Solution. . . . . . . . . . . . . . . . . . . . . . . . 14

3110 Cerium (Ce) Standard Solution. . . . . . . . . . . . . . . . . . . . . . . . 14

3111a Cesium (Cs) Standard Solution. . . . . . . . . . . . . . . . . . . . . . . . 14

3112a Chromium (Cr) Standard Solution. . . . . . . . . . . . . . . . . . . . . . 14

3113 Cobalt (Co) Standard Solution. . . . . . . . . . . . . . . . . . . . . . . . . 14

3114 Copper (Cu) Standard Solution. . . . . . . . . . . . . . . . . . . . . . . . 15

3115a Dysprosium (Dy) Standard Solution. . . . . . . . . . . . . . . . . . . . . 15

3116a Erbium (Er) Standard Solution. . . . . . . . . . . . . . . . . . . . . . . . . 15
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 106

Numerical Index

SRM Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page # 

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

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

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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

3230 Iodine-129 Isotopic Standard (Low Level). . . . . . . . . . . . . . . . 16

3231 Iodine-129 Isotopic Standard (High Level). . . . . . . . . . . . . . . 16

3232 Kelp Powder (Thallus laminariae). . . . . . . . . . . . . . . . . . . . . . 45

SRM Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page # 

3233 Fortified Breakfast Cereal. . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

3234 Soy Flour. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

3235 Soy Milk. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

3236 Soy Protein Isolate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

3237 Soy Protein Concentrate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

3238 Soy-Containing Solid Oral Dosage Form. . . . . . . . . . . . . . . . . 45

3246 Ginkgo biloba (Leaves). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

3247 Ginkgo biloba (Extract). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

3248 Ginkgo-Containing Tablets. . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

3250 Saw Palmetto (Serenoa repens) Fruit. . . . . . . . . . . . . . . . . . . 45

3251 Saw Palmetto (Serenoa repens) Extract. . . . . . . . . . . . . . . . . 45

3252 Protein Drink Mix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

3253 Yerba Mate Leaves. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

3254 Green Tea (Camellia sinensis) Leaves. . . . . . . . . . . . . . . 44, 45

3255 Green Tea (Camellia sinensis) Extract. . . . . . . . . . . . . . . 44, 45

3256 Green Tea-Containing Solid Oral Dosage Form. . . . . . . . 44, 45

3262 St. John’s Wort (Hypericum perforatum L.) Aerial Parts. . 40, 45

3274 Botanical Oils Containing Omega-3 and Omega-6 Fatty Acids. . . 45

3275 Omega-3 and Omega-6 Fatty Acids in Fish Oil. . . . . . . . . . . . 45

3278 Tocopherols in Edible Oils. . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

3279 Chromium Dietary Supplement. . . . . . . . . . . . . . . . . . . . . . . . 45

3280 Multivitamin/Multielement Tablets. . . . . . . . . . . . . . . . . . . . . 45

3281 Cranberry (Fruit). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44, 45

3282 Low-Calorie Cranberry Juice Cocktail. . . . . . . . . . . . . . . 44, 45

3283 Cranberry Extract. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

3284 Cranberry-Containing Solid Oral Dosage Form. . . . . . . . . . . . 45

3285 Mixed-Berry Containing Solid Oral Dosage Form. . . . . . . . . . 45

3287 Blueberry (Fruit). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

3290 Dry Cat Food. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

3291 Bilberry Extract. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

3299 Ground Turmeric (Curcuma longa L.) Rhizome. . . . . . . . . . . . 45

3300 Curcumin Extract of Turmeric (Curcuma longa L.) Rhizome. . 45

3451 Low Temperature Seebeck Coefficient Standard. . . . . . . . . . 65

3530 Iodized Table Salt (Iodide). . . . . . . . . . . . . . . . . . . . . . . . 44, 45

3532 Calcium-Containing Solid Oral Dosage Form. . . . . . . . . . . . . 45

3600 Absolute Intensity Calibration Standard

 for Small-Angle X-Ray Scattering. . . . . . . . . . . . . . . . . . . . . . 82

3667 Creatinine in Frozen Human Urine. . . . . . . . . . . . . . . . . . 20, 21

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, 22

3672 Organic Contaminants in Smokers' Urine

 (Frozen). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20, 22, 40

3673 Organic Contaminants in Non-Smokers' Urine

 (Frozen). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20, 22, 40

3949 Folate Vitamers in Frozen Human Serum. . . . . . . . . . . . 20, 21

3950 Vitamin B6 in Frozen Human Serum. . . . . . . . . . . . . . . . 20, 21

4222d Carbon-14-n-hexadecane Radioactivity Standard. . . . . . . . . 70

4226d Nickel-63 Radioactivity Standard. . . . . . . . . . . . . . . . . . . . . . 70

4233f Cesium-137 Radioactivity Standard Solution. . . . . . . . . . . . . 70

4239 Strontium-90 Radioactivity Standard Solution. . . . . . . . . . . . 70

4251d Barium-133 Radioactivity Standard Solution. . . . . . . . . . . . . 70

4274 Holmium-166m Gamma-ray Emission Rate

 Standard Solution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

4288b Technetium-99 Radioactivity Standard. . . . . . . . . . . . . . . . . . 70

4320b Curium-244 Radioactivity Standard. . . . . . . . . . . . . . . . . . . . 70

4321d Natural Uranium Radioactivity Standard. . . . . . . . . . . . . . . . 70

4322d Americium-241 Radioactivity Standard. . . . . . . . . . . . . . . . . . 70

4323c Plutonium-238 Radioactivity Standard. . . . . . . . . . . . . . . . . . 70

4324b Uranium-232 Radioactivity Standard Solution. . . . . . . . . . . . 70
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 107

Numerical Index

SRM Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page # 

4326a Polonium-209 Radioactivity Standard. . . . . . . . . . . . . . . . . . 70

4328c Thorium-229 Radioactivity Standard Solution. . . . . . . . . . . . 70

4329a Curium-243 Radioactivity Standard Solution. . . . . . . . . . . . . 70

4330c Plutonium-239 Radioactivity Standard. . . . . . . . . . . . . . . . . . 70

4332e Americium-243 Radioactivity Standard. . . . . . . . . . . . . . . . . 70

4334j Plutonium-242 Radioactivity Standard Solution. . . . . . . . . . 70

4337 Lead-210 Radioactivity Standard Solution. . . . . . . . . . . . . . . 70

4338a Plutonium-240 Radioactivity Standard Solution. . . . . . . . . . 70

4339b Radium-228 Radioactivity Solution. . . . . . . . . . . . . . . . . . . . . 70

4340b Plutonium-241 Radioactivity Standard. . . . . . . . . . . . . . . . . . 70

4341a Neptunium-237 Radioactivity Standard. . . . . . . . . . . . . . . . . 70

4342a Thorium-230 Radioactivity Standard. . . . . . . . . . . . . . . . . . . 70

4350B River Sediment Environmental Radioactivity Standard. . . . . 72

4351 Human Lung Environmental Radioactivity Standard. . . . . . . 72

4352 Human Liver Environmental Radioactivity Standard. . . . . . . 72

4353A Rocky Flats Soil Number 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

4354 Lake Sediment Environmental Radioactivity Standard. . . . . 72

4355 Peruvian Soil Powder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

4356 Ashed Bone Environmental Radioactivity Standard. . . . . . . . 72

4357 Ocean Sediment Powder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

4358 Ocean Shellfish Radionuclide Standard. . . . . . . . . . . . . . . . . 72

4359 Seaweed Radionuclide Standard. . . . . . . . . . . . . . . . . . . . . . 72

4361c Hydrogen-3 Radioactivity Standard. . . . . . . . . . . . . . . . . . . . . 70

4370d Europium-152 Radioactivity Standard Solution. . . . . . . . . . . 70

4401L Iodine-131 Radioactivity Standard . . . . . . . . . . . . . . . . . . . . . 71

4404L Thallium-201 Radioactivity Standard. . . . . . . . . . . . . . . . . . 71

4407L Iodine-125 Radioactivity Standard. . . . . . . . . . . . . . . . . . . . 71

4410H Technetium-99m Radioactivity Standard. . . . . . . . . . . . . . . 71

4412L Molybdenum-99 Radioactivity Standard. . . . . . . . . . . . . . . . 71

4415L Xenon-133 Radioactivity Standard . . . . . . . . . . . . . . . . . . . . . 71

4416L Gallium-67 Radioactivity Standard. . . . . . . . . . . . . . . . . . . . 71

4417L Indium-111 Radioactivity Standard. . . . . . . . . . . . . . . . . . . . 71

4427L Yttrium-90 Radioactivity Standard. . . . . . . . . . . . . . . . . . . . 71

4915f Cobalt-60 Radioactivity Standard Solution. . . . . . . . . . . . . . . 70

4919I Strontium-90 Radioactivity Standard. . . . . . . . . . . . . . . . . . . 70

4926e Hydrogen-3 Radioactivity Standard. . . . . . . . . . . . . . . . . . . . . 70

4927g Hydrogen-3 Radioactivity Standard. . . . . . . . . . . . . . . . . . . . . 70

4929f Iron-55 Radioactivity Standard. . . . . . . . . . . . . . . . . . . . . . . . 70

4943 Chlorine-36 Radioactivity Standard. . . . . . . . . . . . . . . . . . . . 70

4949d Iodine-129 Radioactivity Standard Solution. . . . . . . . . . . . . . 70

4965a Radium-226Radioactivity Standard Solution. . . . . . . . . . . . 70

4966a Radium-226 Radioactivity Standard. . . . . . . . . . . . . . . . . . . 70

4967a Radium-226 Radioactivity Standard Solution. . . . . . . . . . . . 70

4969 Radium-226 Radioactivity Standard. . . . . . . . . . . . . . . . . . . . 70

4990C Oxalic Acid. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

8010 Sand for Sand Sieve Analysis. . . . . . . . . . . . . . . . . . . . . . . . . . 84

8011 Gold Nanoparticles, Nominal 10 nm Diameter. . . . 22, 84, 92

8012 Gold Nanoparticles, Nominal 30 nm Diameter. . . . 22, 84, 92

8013 Gold Nanoparticles, Nominal 60 nm Diameter. . . . 22, 84, 92

8017 Polyvinylpyrrolidone Coated Silver Nanoparticles

 (Nominal Diameter 75 nm). . . . . . . . . . . . . . . . . . . . . . . . . . 92

8027 Silicon Nanoparticles (Nominal Diameter 2 nm). . . . . . . . . . 92

8037 Krill Oil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

8040 Sodium Oxalate (Na2C2O4) Reductometric Standard. . . . . . . 14

8281 Single-Wall Carbon Nanotubes (Dispersed,

 Three Length-Resolved Populations). . . . . . . . . . . . . . . . . . . 92

8321 Peptide Mixture of Proteomics. . . . . . . . . . . . . . . . . . . . . . . . . 20

8323 Yeast Protein Extract. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

8366 EGFR and MET Gene Copy Number Standards 

 for Cancer Measurements. . . . . . . . . . . . . . . . . . . . . . . . . . . 23

SRM Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page # 

8375 Microbial Genomic DNA Standards

 for Sequencing Performance Assessment

 (MG-001, MG-002, MG-003, MG-004). . . . . . . . . . . . . 23, 58

8391 Human DNA for Whole-Genome Variant Assessment

 (Son of Eastern European Ashkenazi Jewish Ancestry) 

 (HG-002). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

8392 Human DNA for Whole-Genome Variant Assessment

 (Family Trio of Eastern European Ashkenazi Jewish Ancestry) 

 (HG-002, HG-003, HG-004). . . . . . . . . . . . . . . . . . . . . . . . . . 23

8393 Human DNA for Whole-Genome Variant Assessment

 (Son of Chinese Ancestry) (HG-005). . . . . . . . . . . . . . . . . . . 23

8398 Human DNA for Whole-Genome Variant Assessment

(Daughter of Utah/European Ancestry) (HG-001). . . . . . . . . 23

8420 Electrolytic Iron. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65, 74

8441a Wheat Hardness (kernel form). . . . . . . . . . . . . . . . . . . . . . . . . 45

8445 Spray-Dried Whole Egg for Allergen Detection. . . . . . . . . . . . 44

8446 Perfluorinated Carboxylic Acids and

 Perfluorooctane Sulfonamide in Methanol. . . . . . . . . . 40, 41

8447 Perfluorinated Sulfonic Acids in Methanol. . . . . . . . . . . 40, 41

8455 Pyrite Ore Bioleaching Substrate. . . . . . . . . . . . . . . . . . . . . . . 48

8480 Secondary Ferrite Number Standard - Low Range. . . . . . . . . 95

8481 Secondary Ferrite Number Standard - High Range. . . . . . . . 95

8495 Northern Softwood. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37, 95

8496 Eucalyptus Hardwood. . . . . . . . . . . . . . . . . . . . . . . . . . . . 37, 95

8505 Vanadium in Crude Oil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

8506a Moisture in Transformer Oil. . . . . . . . . . . . . . . . . . . . . . . . . . . 37

8509 Moisture in Methanol. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

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

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)

 (Sulfur Isotopes in Elemental Sulfur) . . . . . . . . . . . . . . . . . . 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

8574 L-glutamic Acid USGS41

(Heavy Carbon and Nitrogen Isotopes in L-glutamic Acid). . . 17

8599 Henderson Molybdenite. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
www.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov 108

Numerical Index

SRM Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page # 

8610 Mercury Isotopes in UM-Almaden Mono-Elemental 

 Secondary Standard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

8631b Medium Test Dust (MTD). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

8632 Ultra Fine Test Dust (UFTD). . . . . . . . . . . . . . . . . . . . . . . . . . . 85

8634 Ethylene Tetrafluoroethylene for Particle Size 

 Distribution and Morphology. . . . . . . . . . . . . . . . . . . . . . . . . 84

8642a FDA Saxitoxin Dihydrochloride Solution. . . . . . . . . . . . . . 20, 44

8671 NISTmAb, Humanized IgG1κ Monoclonal Antibody. . . . . . . . 23

8704 Buffalo River Sediment. . . . . . . . . . . . . . . . . . . . . . . 26, 27, 49

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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76, 77

8850 Zeolite Y. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

8851 Zeolite A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

8852 Ammonium ZSM-5 Zeolite. . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

8983 Silicon Nitride. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

8988 Titanium Dioxide Powder - Particle Size Distribution. . . . . . . 84
Mail Orders

Mail Orders (in English) for all NIST SRMs/RMs

should be directed to:

Standard Reference Materials Program

National Institute of Standards and Technology

100 Bureau Drive, Stop 2300

Gaithersburg, MD 20899-2300

USA

Telephone: (301) 975-2200

E-Mail: srminfo@nist.gov

www.nist.gov/srm

Each purchase order should give the number

of units, SRM number, and name of each

reference material requested.

Example:

1 unit, SRM 930e Glass Filters for

Spectrophotometry

The following information must be included with

each order:

 end user contact information

 name of customer

 shipping address

 billing address

 telephone number

 fax number

 purchase order number

 a customer identification number, i.e., a

social security number (SSN) for consumer

customers, tax identification number (TIN)

for commercial customers, or agency code

(ALC) for U.S. Government customers

Note: NIST SRMs/RMs are only distributed in the units of issue

listed in this catalog and its supplement (price list).

All purchase orders must be in English.

Receipt of an order does not imply acceptance of provisions set

forth in the order that are contrary to the policies, practices, or

regulations of the National Institute of Standards and Technology or

the United States Government.
NIST Standard Reference Materials® 2021 Catalog NIST SP 260-176