NIST Standard Reference Materials®

SRM

NIST Standard Reference Materials®
2024 Catalog
NIST SP 260-176
January 2024

2024 Catalog

Physical
Properties
Nanomaterials
Food &
Agriculture
Radioactivity
Clinical &Industrial Hygiene
Environmental
Forensics

NIST SP 260-176

High Purity
Materials
Industrial
Materials
Engineering
Materials

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Email: srminfo@nist.gov

Orders
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NIST SP 260-176

Standard
Reference
Materials®
Catalog
January 2024
Editors: Regina Montgomery and
Emily Potts
Office of Reference Materials
National Institute of Standards and Technology
Gaithersburg, MD 20899-2300
Steven J. Choquette, Director

U.S. Department of Commerce
Gina M. Raimondo, Secretary
National Institute of Standards and Technology
Laurie E. Locascio, NIST Director and Under Secretary ofCommerce for Standards and Technology

Please visit our website
www.nist.gov/srm

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Certain commercial entities, equipment, or materials
may be identified in this document in order todescribe 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
Gaithersburg, MD
Special Publication 260-176
Supersedes NIST SP 260-176, 2023
114 pages (January 2024)
CODEN: NSPUE2

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N

IST Standard Reference Materials® (SRMs) are used by industry, government, andacademia 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 assistin establishing traceability of measurement results to the International System of Units (SI). EachSRM comes carefully packaged with documentation containing assigned values with stateduncertainties, and a material safety data sheet, if applicable.
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, thecertificate 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 websites at https://www.nist.gov/srm and https://shop.nist.gov/.

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

Chemical Composition

Physical Properties

Engineering Materials

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

Ion Activity...................................... 73

Sizing............................................ 101

Nonferrous Metals. . ............................ 9

Polymeric Properties......................... 75

Surface Finish. . ............................... 105

Microanalysis.. .................................. 13

Thermodynamic Properties................. 77

Fire Research.................................. 107

High-Purity Materials........................ 15

Optical Properties............................. 81

Nanomaterials................................ 109

NIST 2023 SRM Exhibit Schedule.......... 21

Radioactivity. . .................................. 87

Miscellaneous Performance . . ............ 111

Health & Industrial Hygiene. . .............. 23

Electrical Properties.......................... 91

Inorganics. . ...................................... 31

Metrology........................................ 93

Primary Gas Mixtures. . ....................... 35

Liquids & Glasses. . ............................. 97

Fossil & Alternative Fuels................... 43

X-Ray Diffraction. . ............................. 99

Organics.. ......................................... 47
Food & Agriculture.. ........................... 51
Geological Materials & Ores................ 59
Ceramics & Glasses.. ........................... 63
Cement............................................ 65
Engine Wear Materials....................... 67
Forensics. . ........................................ 69

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Standard Reference Materials
for Chemical Composition

Ferrous Metals

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1

Ferrous
MetalsChemicalComposition

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Ferrous
MetalsChemicalComposition

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.

Plain Carbon Steels(chip form)
SRM

Description

Low Alloy Steels(chip form)
Unit of
Issue

SRM

Description

Unit ofIssue

8k

Bessemer Steel (Simulated) 0.1 % Carbon

150 g

30f

Cr-V Steel (SAE 6150)

150 g

12h

Basic Open-Hearth Steel, 0.4% Carbon

150 g

33e

Nickel Steel

150 g

13g

0.6% Carbon Steel

150 g

72g

Low Alloy Steel (AISI 4130)

150 g

Manganese Steel

150 g

14g

Carbon Steel (AISI 1078)

150 g

100b

16f

Basic Open-Hearth Steel, 1% Carbon

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

Chromium Steel (granular form)

100 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

163

368

Carbon Steel (AISI 1211)

150 g

179

LA Steel, High Silicon

150 g

291

Cr-Mo Steel (ASTM A-213)

150 g

293

Cr-Ni-Mo (AISI 8620)

150 g

2171

LA Steel, (HSLA 100)

150 g

See Table 101.1 on the website for more information.

Special Low Alloy Steels(chip and pin forms)
SRM

Description

See Table 101.2 on the website for more information.

Unit of
Issue

361

AISI 4340 Steel (chip form)

150 g

363

Chromium-Vanadium Steel (Modified)

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.

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Ferrous
MetalsChemicalComposition

Low Alloy Steels(disk and rod forms)
SRM

Description

High Alloy Steels(chip form)
Unit of
Issue

SRM
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

Description

Unit of
Issue

663

Chromium-Vanadium Steel (Modified)

5 rods1134

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

Basic Open-Hearth Steel, 1% Carbon

disk

1228

LA Steel, 0.1% C

disk

1264a

High-Carbon Steel (Modified)

disk

1265a

Electrolytic Iron

disk

1269

Line Pipe (AISI 1526 mod.)

disk

1270a

Low Alloy Steel, Cr-Mo, (A336) (F-22)

disk

1271

LA Steel (HSLA-100)

disk

C1285

LA Steel (A242) (mod.)

disk

SRM

1286

Low Alloy Steel (HY 80)

disk

866

Incoloy 800

100 g

Ni-Fe-Cr Alloy UNS N08825

100 g

See Table 101.4 on the website for more information.

High-Temperature Alloys(chip and disk forms)
Description

Unit of
Issue

1761a

Low Alloy Steel

disk

867

1762b

Low Alloy Steel

disk

1230

High-Temperature Alloy A286

disk

Incoloy 800

disk

1763b

Low Alloy Steel

disk

1246

1764a

Low Alloy Steel

disk

1247

Ni-Fe-Cr Alloy UNS N08825

disk

1765

Low Alloy Steel

disk

1250

High-Temperature Alloy (Fe-Ni-Co)

disk

1766

Low Alloy Steel

disk

C2400

Fe-Cr-Ni Alloy UNS J92180

disk

1767

Low Alloy Steeldisk

See Table 101.9 on the website for more information.

1768

High-Purity Iron

disk

See Table 101.8 on the website for more information.

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Ferrous
MetalsChemicalComposition

Stainless Steels(chip form)
SRM

Description

Tool Steels(chip form)
Unit of
Issue

SRM

Description

Unit of
Issue

123c

Stainless Steel, Cr-Ni-Nb (AISI 348)

150 g

50c

Tungsten-Chromium-Vanadium Steel

150 g

133b

Chromium-Molybdenum Steel

150 g

132b

Tool Steel (AISI M2)

150 g

160b

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

150 g

134a

Low-Carbon Stainless Steel (AISI 316L)

100 g

Molybdenum-Tungsten-ChromiumVanadium Steel

150 g

166c
339

17 Chromium-9 Nickel-0.2 Selenium Steel(granule form)

150 g

893

Stainless Steel (SAE 405)

150 g

895

Stainless Steel (SAE 201)

150 g

See Table 101.6 on the website for more information.

Description

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).

Stainless Steels(disk form)
SRM

See Table 101.7 on the website for more information.

SRM

Description

Unit of
Issue

Unit of
Issue

57b

Silicon Metal

40 g

Ferrosilicon (73% Si Regular Grade)

75 g

C1151aStainless Steel 23Cr-7Ni

disk

58a

C1152aStainless Steel 18Cr-11Ni

disk

59a

Ferrosilicon Grade E1

50 g

Ferrochromium High Carbon

100 g

C1153aStainless Steel 17Cr-9Ni

disk

64c

C1154aStainless Steel 19Cr-13Ni

disk

68c

Standard Ferromanganese

100 gFerrophosphorus

75 g

1155a

Stainless Steel (Cr 18 Ni 12 Mo 2)(AISI 316)

disk

90

1171

Stainless Steel Cr 17-Ni 11-Ti 0.3 (AISI 321)

disk

195

Ferrosilicon (75% Si-High-Purity Grade)

75 gFerrochromium Low Carbon

100 gFerrochromium Silicon

100 g

1172

Stainless Steel Cr 17-Ni 11-Nb 0.6 (AISI 348)

disk

196

1219

Stainless Steel Cr16 - Ni2(AISI 431)

disk

689

1223

Chromium Steeldisk

See Table 101.12 on the website for more information.

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.

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Ferrous
MetalsChemicalComposition

Specialty Steels(disk form)
SRM

Description

Cast Steels, White Cast Irons, andDuctile Irons (disk and block forms)
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.

Gases in Ferrous Metals(rod and disk forms)
These SRMs are for determining oxygen and nitrogen byvacuum fusion, inert gas fusion, and neutron activation
methods.
SRM

Description

Unit of
Issue

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

Description

Unit of
Issue

C1137aWhite Cast Iron

disk

1138a

Cast Steel Standard

block

C1145aWhite 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)

1089†

Steels, Set (consists of SRMs 1095, 1096,
1097, 1098 and 1099)

5 rods1090

Oxygen in Ingot Iron

rod

1091a

Oxygen in Stainless Steel (AISI 431)

rod

1093

Oxygen in Valve Steel

rod

SRM

1094

Oxygen in Maraging Steel

rod

4l

Cast Iron

150 g

1755

Nitrogen in Low Alloy Steel

disk

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† These SRMs are sold only as a set designated SRM 1089.
See Table 101.5 on the website for more information.

Description

See Table 101.13 on the website for more information.

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Unit ofIssue

Ferrous
MetalsChemicalComposition

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Standard Reference Materials
for Chemical Composition

Nonferrous Metals

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9

Nonferrous
MetalsChemicalComposition

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.

Aluminum Base Alloys(chip and disk forms)

Copper Base Alloys(chip, granule, and rod forms)

These SRMs are intended for analyses of aluminumalloys by chemical and instrumental methods.
SRM 2426 is a hot-dip coating alloy for sheet steel
applications.
SRM

Description

SRM

Description

Unit of
Issue

158a

Silicon Bronze

150 g

458

Beryllium-Copper (17510)

50 g

Unit ofIssue459

Beryllium-Copper (17200)

50 g

460

Beryllium-Copper Alloy

50 g

87a

Silicon-Aluminum Alloy

75 g

871

Phosphor Bronze (CDA 521)

100 g

853a

Aluminum Alloy 3004 (chip form)

25 g

872

Phosphor Bronze (CDA 544)

100 g

854a

Aluminum Alloy 5182 (chip form)

25 g

874

Cupro-Nickel, 10% (CDA 706) "HIGH-PURITY"

100 g

855a

Aluminum Casting Alloy 356

30 g

875

Cupro-Nickel, 10% (CDA 706) "DOPED"

100 g

856a

Aluminum Casting Alloy 380

30 g

880

Nickel Silver (CDA 770) (granular form)

100 g

858

Aluminum Alloy 6011

35 g

1034

Unalloyed Copper

rod

1240c

Aluminum Alloy 3004

disk

1035

Leaded-Tin Bronze Alloy

50 g

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

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

50 g

454

Unalloyed Copper XI (chips)

35 g

Unit of
Issue

457

Unalloyed Copper IV (solid)

rod

494

Unalloyed Copper I (solid)

rod

862

High-Temperature Alloy L 605

100 g

495

Unalloyed Copper II (solid)

rod

1242

High Temperature Alloy L 605

disk

498

Unalloyed Copper V (solid)

rod

1775

Refractory Alloy MP-35-N

disk

500

Unalloyed Copper - Cu VII

rod

2175

Refractory Alloy MP-35-N

150 g

C1251aPhosphorus Deoxidized Copper -Cu VIII

block

C1252aPhosphorus Deoxidized Copper -Cu IX

block

C1253aPhosphorus Deoxidized Copper - Cu X

block

See Table 102.2 on the website for more information.

See Table 102.5 on the website for more information.

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Nonferrous
MetalsChemicalComposition

Copper Base Alloys(block and disk forms)

Lead-Base Alloys(disk and powder forms)

The SRMs with a “C” prefix are chill-cast blocks,
31 mm square and 19 mm thick; the others are wroughtdisks, 31 mm in diameter and 19 mm thick. Both forms havenearly identical elemental compositions.
SRM

Description

Unit of
Issue

SRMs in the form of disks are approximately 50 mm indiameter 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

1107

Naval Brass UNS 46400

disk

127b

Solder (40Sn-60Pb)

150 g

1110

Red Brass B

disk

1129

Solder (63Sn-37Pb)

200 g

1111

Red Brass Standard

disk

1131

Solder (40Sn - 60Pb)

disk

1112

Gilding Metal

disk

1132

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

disk

1113

Gilding Metal

disk

C2415aBattery Lead (UNS 52770)

disk

1114

Gilding Metal

disk

C2416

Bullet Lead

disk

1115

Commercial Bronze Standard for OpticalEmission and X-ray Spectroscopic Analysis

disk

C2417

Lead-Base Alloy

disk

C1115

Commercial Bronze A (block)disk

See Table 102.10 on the website for more information.

1116

Commercial Bronze Standard for OpticalEmission and X-ray Spectroscopic Analysis

disk

1117

Commercial Bronze Standard for Optica
Emission and X-ray Spectroscopic Analysis

disk

C1117

Commercial Bronze C (block)

disk

1124

Free Cutting Brass (UNS C36000)

1 disk

C1251aPhosphorus Deoxidized Copper -Cu VIII

block

C1252aPhosphorus Deoxidized&nbsp;Copper -Cu IX

block

C1253aPhosphorus Deoxidized Copper - Cu X

block

1276a

Cupro-Nickel (CDA 715)

disk

See Table 102.4 on the website for more information.

Nickel Base Alloys(chip, disk, and granule forms)
SRM

Description

Unit of
Issue

349a

Ni-Cr-Co Alloy UNS N07001

861

Nickel-based Superalloy PWA 1484 (chip form)

50 g

864

Nickel Alloy UNS N06600 (chip form)

100 g

865

Inconel 625

150 g

882

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

100 g

897

Tracealloy A

35 g

899

Tracealloy C

35 g

1159

Electronic and Magnetic Alloy Standard

disk

1160

Elec/Mag Ni-Mo-Fe

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 N07718

disk

1775

Refractory Alloy MP-35-N

disk

2175

Refractory Alloy MP-35-N

150 g

See Table 102.12 on the website for more information.

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

150 gNonferrous
MetalsChemicalComposition

Tin Base Alloys(powder, block, and disk forms)
SRM

Description

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

Unit ofIssue

SRM 1738 through 1741 and SRM 2139 are speciallyprepared alloys primarily intended for use with
spectrometric methods of analysis.

54d

Bearing Metal (Tin Base)

75 g

1727

Anode Tin

block

1728

Tin Alloy (Sn-3Cu-0.5Ag)

disk

SRM

1729

Tin Alloy (97 Sn - 3 Pb)

disk

625

Zinc-Base Die-Casting Alloy A

block

626

Zinc-Base Die-Casting Alloy B

block

627

Zinc-Base Die-Casting Alloy C

block

628

Zinc-Base Die-Casting Alloy D

block

629

Zinc-Base Die-Casting Alloy E

block

630

Zinc-Base Die-Casting Alloy F

block

631

Spectrographic Zinc Spelter (Modified)

block

1738

Zinc-Aluminum Alloy

disk

50 g

1740

Zinc-Aluminum Alloy

disk

1741

Zinc-Aluminum Alloy

disk

2139

Zinc-Aluminum Alloy

100 g

2426

55 % Aluminum-Zinc Alloy

40 g

See Table 102.15 on the website for more information.

Titanium Base Alloys(chip and disk forms)
SRM
173c

Description
Titanium Alloy UNS R56400 (chip form)

Unit of
Issue

641

Spectroscopic TitaniumBase Standards Titanium Alloy, 8 Mn (A)

disk

643

Spectroscopic TitaniumBase Standards Titanium Alloy, 8 Mn ©

disk

647

Titanium Alloy, Al-Mo-Sn-Zr

50 g

648

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

50 g

649

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

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

50 g

SRM

2432

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

50 g

360c

2433

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

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)

10 g

2454a

Hydrogen in Titanium Alloy(Nominal Mass Fraction 215 mg/kg H)(pin form)

10 g

Description

Unit of
Issue

See Table 102.17 on the website for more information.

Zirconium Base Alloys(chip form)
Description
Zirconium (Sn-Fe-Cr) Alloy

See Table 102.18 on the website for more information.

See Table 102.16 on the website for more information.

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Unit of
Issue
100 g

Standard Reference Materials
for Chemical Composition

Microanalysis

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13

Chemical
Composition

Microanalysis

Metals(rod, wire, disk, and cube forms)
SRM

Description

Semiconductor Thin Film for
the Composition of Thin Films

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(rod and microsphere forms)
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
2066

Description
K-411 Glass Microspheres

SRMs 2841 and 2842 are intended for use as a reference
standard for analytical methods that measure thecomposition 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 andhandling.
Description

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.

Unit of
Issue
50 mg

See Table 103.2 on the website for more information.

14

Unit of
Issue

SRM

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Standard Reference Materials
for Chemical Composition

High-Purity Materials

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15

High-Purity
Materials

ChemicalComposition

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High-Purity
Materials

ChemicalComposition

High-Purity Metals(solid forms)

Microchemistry(powder form)

These SRMs are for determining impurity elements in highpurity metals.
SRM
682

Description
High-Purity Zinc

Unit of
Issue

141e

Acetanilide

2g

143d

Cystine (L-Cystine)2g

half-round
bar

2141

Urea

2g

2143

p-Fluorobenzoic Acid

2g

2144

m-Chlorobenzoic Acid

2g

Zinc, Metal

half-round
bar

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 theAnalytical Chemistry Section of the International Union ofPure 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.
Description

Description

Unit of
Issue

683

SRM

SRM

Unit ofIssue

17g

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 (Acidimetric Standard)

50 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 opticalemission 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 singleelement 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 ofacid, 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

5 x 10 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

723e

Tris (hydroxymethyl) aminomethane(HOCH2)3CNH2 Acidimetric Standard

50 g

3112a

Chromium (Cr) Standard Solution

5 x 10 mL

917d

D-Glucose (Dextrose)

50 g

3113

Cobalt (Co) Standard Solution

5 x 10 mL

973

Boric Acid (Acidimetric Standard)

100 g

3114

Copper (Cu) Standard Solution

5 x 10 mL

999c

Potassium Chloride Primary Standard

30 g

3115a

Dysprosium (Dy) Standard Solution

5 x 10 mL

8040a

Sodium Oxalate (Reductometric Standard)

60 g

3116a

Erbium (Er) Standard Solution

5 x 10 mL

3117a

Europium (Eu) Standard Solution

5 x 10 mL

3118a

Gadolinium (Gd) Standard Solution

5 x 10 mL

See Table 104.3 on the website for more information.

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High-Purity
Materials

ChemicalComposition

SRM

Description

Unit of
Issue

SRM

3119a

Gallium (Ga) Standard Solution

5 x 10 mL

3147a

Samarium (Sm) Standard Solution

5 x 10 mL

3120a

Germanium (Ge) Standard Solution

50 mL

3148a

Scandium (Sc) Standard Solution

5 x 10 mL

3121

Gold (Au) Standard Solution

5 x 10 mL

3149

Selenium (Se) Standard Solution

5 x 10 mL

3122

Hafnium (Hf ) Standard Solution

50 mL

3150

Silicon (Si) Standard Solution

50 mL

3123a

Holmium (Ho) Standard Solution

5 x 10 mL

3151

Silver (Ag) Standard Solution

5 x 10 mL

3124a

Indium (In) Standard Solution

5 x 10 mL

3152a

Sodium (Na) Standard Solution

50 mL

3126a

Iron (Fe) Standard Solution

5 x 10 mL

3153a

Strontium (Sr) Standard Solution

5 x 10 mL

3127a

Lanthanum (La) Standard Solution

5 x 10 mL

3154

Sulfur (S) Standard Solution

5 x 10 mL

3128

Lead (Pb) Standard Solution

5 x 10 mL

3155

Tantalum (Ta) Standard Solution

50 mL

3129a

Lithium (Li) Standard Solution

5 x 10 mL

3156

Tellurium (Te) Standard Solution

5 x 10 mL

3130a

Lutetium (Lu) Standard Solution

5 x 10 mL

3157a

Terbium (Tb) Standard Solution

5 x 10 mL

3131a

Magnesium (Mg) Standard Solution

5 x 10 mL

3158

Thallium (Tl) Standard Solution

5 x 10 mL

3132

Manganese (Mn) Standard Solution

5 x 9 mL

3160a

Thulium (Tm) Standard Solution

5 x 10 mL

3133

Mercury (Hg) Standard Solution

5 x 10 mL

3161a

Tin (Sn) Standard Solution

50 mL

3134

Molybdenum (Mo) Standard Solution

5 x 10 mL

3162a

Titanium (Ti) Standard Solution

50 mL

3135a

Neodymium (Nd) Standard Solution

5 x 10 mL

3163

Tungsten (W) Standard Solution

50 mL

3136

Nickel (Ni) Standard Solution

5 x 10 mL

3164

Uranium (U) Standard Solution (Radioactive)

5 x 10 mL

3137

Niobium (Nb) Standard Solution

50 mL

3165

Vanadium (V) Standard Solution

5 x 10 mL

3138

Palladium (Pd) Standard Solution

5 x 10 mL

3166a

Ytterbium (Yb) Standard Solution

5 x 10 mL

3139a

Phosphorus (P) Standard Solution

5 x 10 mL

3167a

Yttrium (Y) Standard Solution

5 x 10 mL

3140

Platinum (Pt) Standard Solution

5 x 10 mL

3168a

Zinc (Zn) Standard Solution

5 x 10 mL

3141a

Potassium (K) Standard Solution

5 x 10 mL

3169

Zirconium (Zr) Standard Solution

50 mL

3142a

Praseodymium (Pr) Standard Solution

5 x 10 mL

3177

Mercuric Chloride (HgCl2) Standard Solution

5 x 10 mL

3143

Rhenium (Re) Standard Solution

5 x 10 mL

See Table 104.5 on the website for more information.

3144

Rhodium (Rh) Standard Solution

5 x 10 mL

3145a

Rubidium (Rb) Standard Solution

5 x 10 mL

Description

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Unit of
Issue

High-Purity
Materials

ChemicalComposition

Arsenic Species
Standard Solutions

Stable Isotopic Materials(solid and solution forms)

These SRMs are intended as calibration standards toprovide SI traceability in the measurement of total arsenic
and arsenic species in food and clinical samples.

The isotopic composition of these SRMs has been
determined by mass spectrometry. For light stable isotopic
materials value assigned on an artifact based scale, seeLight Stable Isotopic Materials.

SRM

Description

Unit of
Issue

3030

Monomethylarsonic Acid Standard Solution

2 x 5 mL

SRM

3031

Dimethylarsinic Acid Standard Solution

2 x 5 mL

951a

Boric Acid Isotopic Standard

10 g

Boric Acid (Acidimetric Standard)

100 g

Description

Unit of
Issue

3033

Arsenobetaine Standard Solution

2 x 5 mL

973

3034

Arsenocholine Standard Solution

2 x 5 mL

975a

Isotopic Standard for Chlorine

0.25 gIsotopic Standard for Bromine

0.25 g3036

Arsenic Acid (AsV) Standard Solution

2 x 10 mL

977

3037

Arsenous Acid (AsIII) Standard Solution

2 x 10 mL

978a

Assay-Isotopic Standard for Silver

0.25 g5 x 10 mL

979

Chromium Isotopic Standard

0.25 g980

Isotopic Standard for Magnesium

0.25 g982

Equal-Atom Lead Isotopic Standard

1 g wire

983

Radiogenic Lead Isotopic Standard

1 g wire

984

Rubidium Chloride

0.25 g986

Isotopic Standard for Nickel

0.5 g

987

Strontium Carbonate Isotopic Standard

1g

994

Isotopic Standard for Gallium

0.25 g997

Thallium Isotopic Standard

0.25 g3230

Iodine-129 Isotopic Standard (Low Level)

5x5 mL

Unit of
Issue

3231

Iodine-129 Isotopic Standard (High Level)

5x5 mL

3328

Lead (Pb) Isotopic Standard Solution

2 x 10 mL

Henderson Molybdenite

3103a

Arsenic (As) Standard Solution

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

3180

Iodide Anion Standard Solution

5 x 5 mL

8599

3181

Sulfate Anion (SO42-) Standard Solution

5 x 10 mL

See Table 104.9 on the website for more information.

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.

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10 gHigh-Purity
Materials

ChemicalComposition

Light Stable Isotopic Materials(gas, liquid, and solid forms)

SRM

These RMs are for calibration of isotope-ratio mass
spectrometers and associated sample preparation
systems. They are distributed by NIST on behalf of theInternational Atomic Energy Agency (IAEA). At therequest of the IAEA, quantities of these materials arelimited 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.
Unit of
Issue

SRM

Description

8301

Boron Isotopes in Marine Carbonate(Simulated Coral and Foraminifera Solutions)

6 x 4 mL

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)

1g

8544

NBS 19 Limestone(Carbon and Oxygen Isotopes in Carbonate)

0.4 g

8545

LSVEC (Carbon, Oxygen, and Lithium
Isotopes in Lithium Carbonate)

0.4 g

8546

NBS28
(Silicon and Oxygen Isotopes in Silica Sand)

0.4 g

8547

IAEA-N-1 (Nitrogen Isotopes
in Ammonium Sulfate)

0.4 g

8548

IAEA-N-2 (Nitrogen Isotopes
in Ammonium Sulfate)

0.4 g

8550

USGS25 (Nitrogen Isotopes
in Ammonium Sulfate)

0.5 g

8551

USGS26 (Nitrogen Isotopes in Ammonium Sulfate)

0.5 g

8552

NSVEC (Nitrogen Isotopes
in Gaseous Nitrogen)

300 µmol8553

IAEA-S-4 (Soufre De Lacq)(Sulfur Isotopes in Elemental Sulfur)

Description

Unit of
Issue

8554

IAEA-S-1 (Sulfur Isotopes in Silver Sulfide)

0.5 g

8555

IAEA-S-2 (Sulfur Isotopes in Silver Sulfide)

0.5 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

CO2-13C-enriched, Paleomarine Origin(Carbon Dioxide)

set (2)8563

CO2-13C-depleted, 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.

0.5 g

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NIST 2024 SRM
EXHIBIT SCHEDULE
February 26 - 28, 2024

Pittcon Conference and Exposition
San Diego Convention Center, Booth #1814
San Diego, CA

July 30 - August 1, 2024

ADLM (Association for Diagnostics &Laboratory Medicine) 2024
*formerly AACCMc Cormick Place Convention Center
Booth #1850
Chicago, IL

August 24 - 27, 2024

AOAC International 138th Annual
Meeting & Exposition
Marriott Baltimore Waterfront
Booth: #TBD
Baltimore, MD

High-Purity
Materials

ChemicalComposition

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Standard Reference Materials
for Chemical Composition

Health & Industrial
Hygienewww.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov

23

Health & Industrial
HygieneChemicalComposition

Clinical Laboratory Materials(gas, liquid, and solid forms)

SRM

The following SRMs (Table 105.1) are intended for validating
analytical methods used in clinical and pathology
laboratories. Additional information on the serum
materials is given in Table 105.2.
SRM

Description

Unit of
Issue

Description

Unit of
Issue

1950

Metabolites in Frozen Human Plasma

5 x 1 mL

1951c

Lipids in Frozen Human Serum4 x 1 mL

1955

Homocysteine and Folate
in Frozen Human Serumset (3)

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

2365

BK Virus DNA Quantitative Standard

1 x 110 µL

2366a

Cytomegalovirus DNA (TowneD147BAC)
for DNA Measurements

1 x 150 µL

909c

Frozen Human Serum

911c

Cholesterol

2g

912b

Urea

25 g

913b

Uric Acid

10 g

2378

Fatty Acids in Frozen Human Serum3 x 1 mL

914b

Creatinine

10 g

2389a

Amino Acids in 0.1 mol/L Hydrochloric Acid

915c

Calcium Carbonate

20 g

5 x 1.2 mL

916b

Bilirubin

100 mg2668

Toxic Elements in Frozen Human Urine

10 x 1.5 mL

917d

D-Glucose (Dextrose)

50 g

2669

Arsenic Species in Frozen Human Urine

10 x 1.5 mL

918c

Potassium Chloride Generaland Ion Activity Standard

30 g

2921

Human Cardiac Troponin Complex

5 x 115 µL

2924

C-Reactive Protein Solution

3 x 1 mL

919b

Sodium Chloride

30 g

2925

2 x 0.5 mL

920

D-Mannitol

50 g

Recombinant Human Serum Albumin Solution(Primary Reference Calibrator for Urine Albumin)(Frozen)921a

Cortisol (Hydrocortisone)

1g

2968

5 x 1.2 mL

924a

Lithium Carbonate

30 g

3-Epi-25-Hydroxvitamin D3 Calibration
Solution

927f

Bovine Serum Albumin (7 % Solution)(Total Protein Standard)

2969

Vitamin D Metabolites in Frozen Human Serum(Total 25-Hydroxyvitamin D Low Level)2 x 1 mL

928

Lead Nitrate

2970"Vitamin D Metabolites in Frozen Human Serum(25-Hydroxyvitamin D2 High Level)"2 x 1 mL

929a

Magnesium Gluconate

5g

2972b

25-Hydroxyvitamin D Calibration Solutions

937

Iron Metal

50 g

15
x 1.2 mL

955d

Toxic Metals and Metabolites
in Frozen Human Blood

6 x 1.6 mL

2973

Vitamin D Metabolites in Frozen Human Serum(High Level)2 x 1 mL

956d

Electrolytes in Frozen Human Serum

6 x 2 mL

3030

Monomethylarsonic Acid Standard Solution

2 x 5 mL

965b

Glucose in Frozen Human Serum8 x 2 mL

3031

Dimethylarsinic Acid Standard Solution

2 x 5 mL

Arsenobetaine Standard Solution

2 x 5 mL3 x 2 mL

10 x 2.2 mL
30 g

967a

Creatinine in Frozen Human Serum4 x 1 mL

3033

968f

Fat-Soluble Vitamins in Frozen Human Serum2 x 1 mL

3034

Arsenocholine Standard Solution

2 x 5 mL

Arsenic Acid (AsV) Standard Solution

2 x 10 mL

971a

Hormones in Frozen Human Serum4 x 2 mL

3036

972a

Vitamin D Metabolites in Frozen Human Serum4 x 1 mL

3037

Arsenous Acid (AsIII) Standard Solution

2 x 10 mL

Glycans in Solution (Frozen)

13 vials998

Angiotensin I (Human)

0.5 mg3655

1400

Bone Ash

50 g

3666

Albumin and Creatinine in Frozen Human Urine

4 x 1 mL

Creatinine in Frozen Human Urine

1 x 10 mL

1401

Trace Metals in Frozen Human Blood

4 x 1.6 mL

3667

1486

Bone Meal

50 g

3668

10 x 1.5 mL

1507b

11-Nor-Delta-9-Tetrahydrocannabinol-9Carboxylic Acid in Freeze-Dried Urine

set (3)

Mercury, Perchlorate, and Iodide
in Frozen Human Urine

3669

5 x 1.5 mL

1595

Tripalmitin

2g

Arsenic Species in Frozen Human Urine(Elevated Levels)

1598a

Inorganic Constituents in Animal Serum2 x 5 mL

3671

Nicotine Metabolites in Human Urine (Frozen)

3 x 10 mL

1949

Frozen Human Prenatal Serum

8 vials(2 eachlevel)

3672

Organic Contaminants in Smokers' Urine(Frozen)

5 x 10 mL

3673

Organic Contaminants in
Non-Smokers' Urine (Frozen)

5 x 10 mL

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Health & Industrial
HygieneChemicalComposition

SRM

Description

Unit of
Issue

3949

Folate Vitamers in Frozen Human Serum3 x 1 mL

3950

Vitamin B in Frozen Human Serum2 x 1 mL

3951

Fatty Acid Species in Frozen Human Serum3 x 1 mL

8321

Peptide Mixture for Proteomics

3 x 50 uL

8323

Yeast Protein Extract

3 x 0.2 mL

8461

Human Liver for Proteomics

8642a

FDA Saxitoxin Dihydrochloride Solution

5 x 1.2 mL

8671

NISTmAb, Humanized IgG1k
Monoclonal Antibody

1 x 800 µL

0.5 g

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

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)

Air Particulate on Filter Media2 + 2 Blank(47 mm dia)

2950a

Respirable Alpha Quartz on Filter Media(Nominal Mass of Alpha Quartz: 5 µg - 500 µg)

35 filters
plus 35
blanks2960

Respirable Cristobalite on Filter Media(Nominal Mass of Cristobalite: 5 µg - 250 µg)

30 filters
plus 30
blanks8785

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.

Vitamin D Metabolites for ClinicalLaboratory Materials (serum,plasma, and calibration solutions)

See Table 105.4 on the website for more information.

Description

Unit of
Issue

968f

Fat-Soluble Vitamins in Frozen Human Serum2 x 1 mL

972a

Vitamin D Metabolites in Frozen Human Serum4 x 1 mL

1949

Frozen Human Prenatal Serum

8 vials(2 each)1950

Metabolites in Frozen Human Plasma

5 x 1 mL

2968

3-Epi-25-Hydroxvitamin D3 Calibration
Solution

5 x 1.2 mL

2969

Vitamin D Metabolites in Frozen Human
Serum (Total 25-Hydroxyvitamin D Low Level)2 x 1 mL

SRM

Biomaterials(solid forms)
Biomaterials are found in medical devices that are in
intimate contact with tissues and body fliuds.
SRM

Description

Unit of
Issue

Unit of
Issue

2783

See Table 105.1 and Table 105.2 on the website for more information.

Toxic Substances in Urine(frozen form)

Description

2910b

Hydroxyapatite

8012

Gold Nanoparticles,
Nominal 30 nm Diameter2 x 5 mL

2970

Vitamin D Metabolites in Frozen Human
Serum (25-Hydroxyvitamin D2 High Level)2 x 1 mL

8013

Gold Nanoparticles,
Nominal 60 nm Diameter2 x 5 mL

2971

24R, 25-Dihydroxyvitamin D3 Calibration
Solution

5 x 1 mL

2972b

25-Hydroxyvitamin D Calibration Solutions

15 x 1.2 mL

2973

Vitamin D Metabolites in Frozen Human Serum(High Level)2 x 1 mL

See Table 105.9 on the website for more information.

2g

See Table 105.5 on the website for more information.

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Health & Industrial
HygieneChemicalComposition

Ethanol Solutions

Biomanufacturing

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 (Six Levels)

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.

Drugs of Abuse, Smoking
Metabolites and Contaminants(urine)SRM

Description

Unit of
Issue

1507b

11-Nor-Delta-9-Tetrahydrocannabinol-9Carboxylic Acid in Freeze-Dried Urine

set (3)2926

Recombinant Human Insulin-like Growth
Factor 1 (Frozen)

3 x 0.25 mL

2927

15

N-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

SRM 3655 is intended primarily for use as a calibration
standard for the measurement of enzymatically released
N-linked glycans. Potential applications of SRM 3655
include the benchmarking and comparability of analyticaltechniques, as a material for ensuring system suitability,and for analytical method validation. This material may
also be used to value-assign in-house calibrators or control
materials. SRM 3655 consists of thirteen (13) aqueous
solutions of glycans commonly associated with monoclonal
antibody therapeutics. Each solution contains a purified
free-reducing glycan at a certfied mass fraction.
RM 8230 is intended primarily for challenging, evaluating,and comparing analytical workflows involving nucleic acidbased detection. RM 8230 yeast cells have a noncoding
sequence of nucleic acids stably inserted into theirgenome for targeted detection. Typical instrumentation
for using this RM include polymerase chain reaction(PCR), quantitative PCR (qPCR), digital PCR (dPCR), andDNA sequencing technologies. In addition, this RM ischaracterized for total cells and may be used to support
the assessment and comparison of microbial cell counting
methods.
RM 8634 is intended primarily for use in validating thecounting, sizing, and morphological analysis of liquidborne particles over an approximate size range of 1 μm
to 30 μm. RM 8634 is a suspension of highly polydisperse
particles of irregular morphology that closely mimic the
optical properties of aggregated proteinaceous particles.
Thus, it is useful in determining instrumental response forparticle counters used in biomanufacturing applications.
RM 8671 is intended primarily for use in evaluating theperformance of methods for determining physicochemicaland biophysical attributes of monoclonal antibodies. It also
provides a representative test molecule for development ofnovel technology for therapeutic protein characterization.
SRM

Description

Unit of
Issue

3655

Glycans in Solution (Frozen)

13 vials

8230

Saccharomyces cerevisiae NE095 Cells for Cell
Counting and DNA-based Detection(freeze-dried)

16 vials(12 yeast,
4 matrix)

8634

Ethylene Tetrafluoroethylene forParticle Size Distribution andMorphology

20 mL

8671

NISTmAb, Humanized IgG1κ
Monoclonal Antibody

See Table 105.6 on the website for more information.

See Table 105.7 on the website for more information.

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

1 x 800 μL

Health & Industrial
HygieneChemicalComposition

Serum, Plasma, Blood and Urine
Clinical Laboratory Materials(frozen, liquid, and lyophilized
forms)

SRM

These SRMs are intended serve a variety of clinicalmeasurement needs.
SRM

Description

Unit of
Issue

Description

Unit of
Issue

3669

Arsenic Species in Frozen Human Urine(Elevated Levels)

3671

Nicotine Metabolites in Human Urine (Frozen)

5 x 1.5 mL

3672

Organic Contaminants in Smoker’s
Urine (Frozen)

10 x 1.5 mL

3673

Organic Contaminants in Non-Smoker’s’Urine (Frozen)

10 x 1.5 mL

10 x 1.5 mL

3949

Folate Vitamers in Frozen Human Serum3 x 1 mL

909c

Frozen Human Serum3 x 2 mL

3950

Vitamin B6 in Frozen Human Serum2 x 1 mL

927f

Bovine Serum Albumin (7 %, solution)(Total Protein Solution)

10 x 2.2 mL

3951

Fatty Acid Species in Frozen Human Serum3 x 1 mL

955d

Toxic Metals and Metabolites
in Frozen Human Blood

6 x 1.6 mL

See Table 105.2 on the website for more information.

956d

Electrolytes in Frozen Human Serum

6 x 2 mL

965b

Glucose in Frozen Human Serumset (8)967aCreatinine in Frozen Human Serumset (4)968f

Fat-Soluble Vitamins, Carotenoids,
and Cholesterol in Human Serumset (3)971a

Hormones in Frozen Human Serum2 x 2 mL

972a

Vitamin D Metabolites in
Frozen Human Serum4 x 1 mL

1401

Trace Metals in Frozen Human Blood

4 x 1.6 mL

1507b

11-Nor-Delta-9-Tetrahydrocannabinol-9CarboxylicAcid in Freeze-Dried Urine

1949

Frozen Human Prenatal Serum8 x 1.8 mL

SRM

1950

Metabolites in Human Plasma

5 x 1 mL

1648a

Urban Particulate Matter

2g

1951c

Lipids in Frozen Human Serum4 x 1 mL

1649b

Urban Dust

2g

1955

Homocysteine and Folate in
Frozen Human Serumset (3)

1650b

Diesel Particulate Matter

1957

Organic Contaminants in
Non-Fortified Human Serum

5

1878b

Respirable Alpha Quartz (Quantitative
X-Ray Powder Diffraction Standard)

5g

1958

Organic Contaminants in
Fortified Human Serum

5

1879b

Respirable Cristobalite (Quantitative
X-Ray Powder Diffraction Standard)

5g

2378

Fatty Acids in Frozen Human Serum3 x 1 mL

1975

Diesel Particulate Extract

2583

Trace Elements in Indoor Dust (Nominal Mass
Fraction of 90 mg/kg Lead)

8g

2584

Trace Elements in Indoor Dust (Nominal Mass
Fraction of 1% Lead)

8g

2585

Organic Contaminants in House Dust

10 g

Fine Atmospheric Particulate Matter(Mean Particle Diameter < 4 µm)

100 mgto 140 mg

set (3)2668

Toxic Elements in Frozen Human Urine

10 x 1.5 mL

2669

Arsenic Species in Frozen Human Urine

10 x 1.5 mL

2925

Recombinant Human Serum Albumin
Solution (Primary Reference Calibrator
for Urine Albumin) (Frozen)

2 x 0.5 mL

Respirable
Materials
SRMs 1878b and 1879b are crystalline silica materials withparticle 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.
Description

2969

Vitamin D Metabolites in Frozen Human
Serum (Total 25-Hydroxyvitamin D Low Level)2 x 1 mL

2786

2970

Vitamin D Metabolites in Frozen Human
Serum (25-Hydroxyvitamin D2 High Level)2 x 1 mL

2787

Fine Atmospheric Particulate Matter(Mean Particle Diameter < 10 µm)

2973

Vitamin D Metabolites
in Frozen Human Serum (High Level)2 x 1 mL

2975

Diesel Particulate Matter

3666

Albumin and Creatinine
in Frozen Human Urine

4 x 1 mL

8044

Common Commercial Asbestos: Chrysotile

3667

Creatinine in Frozen Human Urine

1 x 10 mL

See Table 105.12 on the website for more information.

3668

Mercury, Perchlorate, and Iodide
in Frozen Human Urine

10 x 1.5 mL

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

Unit ofIssue

200 mg4 x 1.2 mL

100 mgto 140 mg

Health & Industrial
HygieneDNA Profiling, Nucleic Acid
Materials, and Monoclonal Antibody
Standard Reference Material (SRM) 2372a is intended
primarily for use in the value assignment of humangenomic deoxyribonucleic acid (DNA) forensic
quantitation materials. SRM 2372a consists of threewell-characterized human genomic DNA materials in
pH 8.0 aqueous buffer. The components are derived
from human buffy coat samples, and labeled A, B,
and C. Component A consists of genomic DNA from asingle male donor. Component B consists of genomic
DNA from a single female donor. Component C
consists of a gravimetric mixture of genomic DNA(1 part male donor to 3 parts female donor).
SRM 2372a is certified for copy number and DNA
concentration (ng/µL). A unit of the SRM consists of
one sterile 0.5 mL vial of each component, each vial
containing approximately 55 μL of DNA solution.
Each of these vials is labeled and is sealed with acolor-coded screw cap.
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) andsequencing any DNA. SRM 2392 Mitochondrial DNA
Sequencing contains DNA extracted from two celllines 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 thesequences of 58 unique primer sets which permit
the amplification and sequencing of any specific areaor the entire human mitochondrial DNA (strand).
SRM 2392 consists of three frozen components
packaged in one box. For further information see:SP260-155.
RMs 8366, 8375, 8391, 8392, 8393, and 8398 are
intended for assessing performance of humangenome sequencing, including whole genome
sequencing, whole exome sequencing, andmore 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.

ChemicalComposition

SRM

Description

Unit of
Issue

2365

BK Virus DNA Quantitative Standard

1 vial2366a

Cytomegalovirus DNA (TowneΔ147 BAC)
for DNA Measurements

1 vial2367

JC Virus DNA Quantitative Standard

1 x 110 μL

2372a

Human DNA Quantitation Standard

set (3)

2373

Genomic DNA Standards for
HER2 Measurementsset (5)2374

DNA Sequence Library for External
RNA Controls

96 tubes

2391d

PCR-Based DNA Profiling Standard

5 vials

2393

CAG Repeat Length Mutationin Huntington’s Diseaseset (6)2917

Plasmid DNA for Fecal Indicator Detection
and Identification

set (6)

8230

Saccharomyces cerevisiae NE095 Cells for Cell
Counting and DNA-based Detection(freeze-dried)

16 vials(12 yeast,
4 matrix)

8366

EGFR and MET Gene Copy Number Standards
for Cancer Measurementsset (6)8375

Microbial Genomic DNA Standards
for Sequencing Performance Assessment(MG-001, MG-002, MG-003, MG-004)

set (4)8376

Microbial Pathogen DNA Standards for
Detection and Identification

20 tubes

8391

Human DNA for Whole-Genome
Variant Assessment (Son of Eastern
European Ashkenazi Jewish Ancestry)(HG-002)

1 vial8391(QTY 10)

Human DNA for Whole-Genome
Variant Assessment (Son of Eastern
European Ashkenazi Jewish Ancestry)(HG-002)

10 vials
of RM
8391

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 vial8393(QTY 10)

Human DNA for Whole-Genome Variant
Assessment (Son of Chinese Ancestry)(HG-005)

10 vials
of RM
8391

8398

Human DNA for Whole-Genome Variant
Assessment (Daughter of Utah/European
Ancestry) (HG-001)

1 vial8398(QTY 10)

Human DNA for Whole-Genome Variant
Assessment (Daughter of Utah/European
Ancestry) (HG-001)

10 vials
of RM
8398

See Table 105.8 on the website for more information.

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

Health & Industrial
HygieneChemicalComposition

Lead in Paint, Dust, and Soil
(powder and sheet forms)

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)

8g

Unit of
Issue

2584

Trace Elements in Indoor Dust (Nominal Mass
Fraction of 1% Lead)

8g

2g

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 Fractionof 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

These SRMs and RM have been developed in conjunction
with the U.S. EPA to monitor paint, soil, and dust sourcesof lead. SRMs 2570 through 2576 consist of one Mylar
sheet per unit. Each sheet, 7.6 cm x 10.2 cm, is coated witha 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 andSRM 2584 are certified for arsenic, chromium, cadmium,lead, and mercury. SRMs 2584, 2586, and 2587 aredust or soil matrices containing lead from paint.
SRM

Description

1648a

Urban Particulate Matter

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

See Table 105.13 on the website for more information.

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

Health & Industrial
HygieneChemicalComposition

Page has been intentionally left blankwww.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov

Standard Reference Materials
for Chemical Composition

Inorganics

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

31

Chemical
Composition

Inorganics

Metal (Inorganics) Constituentsin Natural Matrices(liquid and solid forms)

SRM

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

2g

1947

Lake Michigan Fish Tissue

5x8g

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)

8g

2584

Trace Elements in Indoor Dust (Nominal Mass
Fraction of 1 % Lead)

8g

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 Fractionof 3000 mg/kg Lead)

55 g

2696

Silica Fume (powder form)

70 g

2700

Hexavalent Chromium inContaminated Soil (Low Level)

75 g

2701

Hexavalent Chromiumin Contaminated Soil (High Level)

75 g

2702

Inorganics in Marine Sediment

50 g

2703

Sediment for Solid Sampling(Small Sample) Analytical Techniques

5g

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

2782

Industrial Sludge

70 g

Description

Unit of
Issue

2783

Air Particulate on Filter Media(47 mm dia)

2 + 2 Blank

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

filterSee Table 106.1 on the website for more information.

Mercury in
Activated Carbon
These SRMs are intended for use in the evaluation ofchemical 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.

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

Chemical
Composition

Inorganics

Environmental Matrices
with Carbon Values

Zeolites(powder form)

These materials are intended for use in evaluating analyticalmethods used to measure carbon.
SRM

Description

Unit of
Issue

These RMs are intended to provide a common source ofzeolite materials for measurement comparisons. Additionalreference 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 insample mass with change in ambient humidity.

1632eTrace Elements in Coal (Bituminous)

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

8499

Trace Elements in Coal (Bituminous)

50 g

SRM

8704

Buffalo River Sediment

50 g

8850

Zeolite Y

35-40 g8785

Air Particulate Matter on Filter Media

3 filters

8851

Zeolite A

35-40 g8786

Filter Blank for RM 8785

filter8852

Ammonium ZSM-5 Zeolite

35-40 gSee Table 106.4 on the website for more information.

Description

See Table 106.7 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 andlead in auto catalysts. They were produced in cooperation
with the International Precious Metals Institute and areissued 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.

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

Unit of
Issue

Chemical
Composition

Inorganics

Page has been intentionally left blankwww.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov

Standard Reference Materials
for Chemical Composition

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

35

Primary Gas
Mixtures

ChemicalComposition

Page has been intentionally left blankwww.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov

Primary Gas
Mixtures

ChemicalComposition

Primary Gas Mixtures
These SRMs are for calibrating equipment and apparatus
used to measure various components of gas mixtures andatmospheric pollutants. The typical gas mixture is suppliedin 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 referencegas described below may be substituted.
A NIST Traceable Reference Material (NTRM) is a referencematerial produced by a commercial supplier with awell-defined traceability to NIST measurement results.
This traceability is established via criteria and protocols
defined by NIST that are tailored to meet the needs of themetrological community to be served. The NTRM concept
was established to allow NIST to respond to the increasingneeds for high quality reference materials by leveraging
its relatively fixed human and financial resources withsecondary reference material producers. Reference material
producers adhering to NIST defined protocol requirements
are allowed to use the NTRM trademark to identify theirproduct.
The gas NTRM program was established in 1992 inpartnership with the U.S. EPA and specialty gas companies
as a means for providing end-users with the wide variety ofcertified 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 balancegas combination for which a NIST primary standard or
SRM exists. The gas standards prepared according to thisprogram are related, within known limits of uncertainty,
to specific gaseous primary standards maintained by NIST.

Carbon Monoxide in Air or Nitrogen

1679c*

Carbon Monoxide in Nitrogen(Nominal Amount-of-Substance
Fraction 100 µmol/mol)

6Lcylinder1680b*

Carbon Monoxide in Nitrogen(Nominal Amount-of-Substance
Fraction 500 µmol/mol)

6Lcylinder1681b*

Carbon Monoxide in Nitrogen(Nominal Amount-of-Substance
Fraction 1000 µmol/mol)

6Lcylinder2635a*

Carbon Monoxide in Nitrogen(Nominal Amount-of-Substance
Fraction 25 µmol/mol)

6Lcylinder2636a*

Carbon Monoxide in Nitrogen(Nominal Amount-of-Substance
Fraction 250 µmol/mol)

6Lcylinder2637a*

Carbon Monoxide in Nitrogen(Nominal Amount-of-Substance
Fraction 2500 µmol/mol)

6Lcylinder2638a*

Carbon Monoxide in Nitrogen(Nominal Amount-of-Substance
Fraction 5000 µmol/mol)

6Lcylinder2639a

Carbon Monoxide in Nitrogen(Nominal Amount-of-Substance
Fraction 1 % mol/mol)

6Lcylinder

2640a

Carbon Monoxide in Nitrogen(Nominal Amount-of-Substance
Fraction 2 % mol/mol)

6Lcylinder

2641a

Carbon Monoxide in Nitrogen(Nominal Amount-of-Substance
Fraction 4 % mol/mol)

6Lcylinder2642a*

Carbon Monoxide in Nitrogen(Nominal Amount-of-Substance
Fraction 8 % mol/mol)

6Lcylinder2740a

Carbon Monoxide in Nitrogen(Nominal Amount-of-Substance
Fraction 10 % mol/mol)

6Lcylinder2741a

Carbon Monoxide in Nitrogen(Nominal Amount-of-Substance
Fraction 13 % mol/mol)

6Lcylinder* The SRMs that are marked with * are also available as NTRMs fromcommercial suppliers.
See Table 107.1 on the website for more information.

Unit of
Issue

SRM

Description

1677c*

Carbon Monoxide in Nitrogen(Nominal Amount-of-Substance
Fraction 10 µmol/mol)

6Lcylinder1678c*

Carbon Monoxide in Nitrogen(Nominal Amount-of-Substance
Fraction 50 µmol/mol)

6Lcylinderwww.nist.gov/srm | Phone: 301.975.2200 | Email: srminfo@nist.gov

Primary Gas
Mixtures

ChemicalComposition

Carbon Dioxide in Nitrogen

Continental and Oceanic Air
Unit of
Issue

SRM

Description

1674b*

Carbon Dioxide in Nitrogen(Nominal Amount-of-Substance
Fraction 7 % mol/mol)

6Lcylinder2617

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

6Lcylinder2619a

Carbon Dioxide in Nitrogen(Nominal Amount-of-Substance
Fraction 0.5 % mol/mol)

6Lcylinder2620a

Carbon Dioxide in Nitrogen(Nominal Amount-of-Substance
Fraction 1 % mol/mol)

6Lcylinder2621a

Carbon Dioxide in Nitrogen(Nominal Amount-of-Substance
Fraction 1.5 % mol/mol)

6Lcylinder2622a

Carbon Dioxide in Nitrogen(Nominal Amount-of-Substance
Fraction 2 % mol/mol)

6Lcylinder2624a

Carbon Dioxide in Nitrogen(Nominal Amount-of-Substance
Fraction 3 % mol/mol)

6Lcylinder2625a*

Carbon Dioxide in Nitrogen(Nominal Amount-of-Substance
Fraction 3.5 % mol/mol)

6Lcylinder2745*

Carbon Dioxide in Nitrogen(Nominal Amount-of-Substance
Fraction 16 % mol/mol)

6LcylinderSRM

Description

Unit of
Issue

1720

Northern Continental Air

30 L
cylinder1721

Southern Oceanic Air

30 L
cylinder1722

Halocarbons in Continental Air (Nominal
Amount-of-Substance Fraction - Ambient)29.5 LcylinderSee 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)

6Lcylinder2731

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

6LcylinderSee Table 107.4 on the website for more information.

* The SRMs that are marked with * are also available as NTRMs fromcommercial suppliers.
See Table 107.2 on the website for more information.

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

Primary Gas
Mixtures

ChemicalComposition

Organic Components in Air
or Nitrogen
SRM

Description

Nitrogen Oxides in Air or Nitrogen
Unit of
Issue

1658a

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

6Lcylinder1659a

Methane in Air (Nominal Amount-ofSubstance Fraction 10 µmol/mol)

6Lcylinder1665b

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

6Lcylinder1666b

Propane in Air (Nominal Amount-ofSubstance Fraction 10 µmol/mol)

6Lcylinder1667b

Propane in Air (Nominal Amount-ofSubstance Fraction 50 µmol/mol)

6Lcylinder1668b*

Propane in Air (Nominal Amount-ofSubstance Fraction 100 µmol/mol)

6Lcylinder1669b

Propane in Air (Nominal Amount-ofSubstance Fraction 500 µmol/mol)

6Lcylinder

2644a

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

6Lcylinder

2647a

Propane in Nitrogen (Nominal Amount-ofSubstance Fraction 2500 µmol/mol)

6Lcylinder2750

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

6Lcylinder2751

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

6Lcylinder2764

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

6Lcylinder2765

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

6LcylinderSee Table 107.5 on the website for more information.

Unit of
Issue

SRM

Description

1683b*

Nitric Oxide in Nitrogen(Nominal Amount-of-Substance
Fraction 50 µmol/mol)

6Lcylinder1684b*

Nitric Oxide in Nitrogen(Nominal Amount-of-Substance
Fraction 100 µmol/mol)

6Lcylinder1685b*

Nitric Oxide in Nitrogen(Nominal Amount-of-Substance
Fraction 250 µmol/mol)

6Lcylinder1686b*

Nitric Oxide in Nitrogen(Nominal Amount-of-Substance
Fraction 500 µmol/mol)

6Lcylinder1687b*

Nitric Oxide in Nitrogen(Nominal Amount-of-Substance
Fraction 1000 µmol/mol)

6Lcylinder

1718

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

6Lcylinder2627a*

Nitric Oxide in Nitrogen(Nominal Amount-of-Substance
Fraction 5 µmol/mol)

6Lcylinder2628a*

Nitric Oxide in Nitrogen(Nominal Amount-of-Substance
Fraction 10 µmol/mol)

6Lcylinder2629a*

Nitric Oxide in Nitrogen(Nominal Amount-of-Substance
Fraction 20 µmol/mol)

6Lcylinder

2630*

Nitric Oxide in Nitrogen(Nominal Amount-of-Substance
Fraction 1500 µmol/mol)

6Lcylinder2631a*

Nitric Oxide in Nitrogen(Nominal Amount-of-Substance
Fraction 3000 µmol/mol)

6Lcylinder2660a*

Total Oxides of Nitrogen (NOx) in Air(Nominal Amount-of-Substance
Fraction 100 µmol/mol)

6Lcylinder2735

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

6Lcylinder2737*

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

30 L
cylinder* The SRMs that are marked with * are also available as NTRMs fromcommercial suppliers.
See Table 107.6 on the website for more information.

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

Primary Gas
Mixtures

ChemicalComposition

Oxygen in Nitrogen
SRM

Description

Sulfur Dioxide in Nitrogen
Unit ofIssue

2657a*

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

6Lcylinder2658a*

Oxygen in Nitrogen (Nominal Amount-ofSubstance Fraction 10 % mol/mol)

6Lcylinder2659a*

Oxygen in Nitrogen (Nominal Amount-ofSubstance Fraction 21 % mol/mol)

6Lcylinder* The SRMs that are marked with * are also available as NTRMs fromcommercial suppliers.
See Table 107.7 on the website for more information.

Unit of
Issue

SRM

Description

1661a*

Sulfur Dioxide in Nitrogen(Nominal Amount-of-Substance
Fraction 500 µmol/mol)

6Lcylinder1662a*

Sulfur Dioxide in Nitrogen(Nominal Amount-of-Substance
Fraction 1000 µmol/mol)

6Lcylinder1663a*

Sulfur Dioxide in Nitrogen(Nominal Amount-of-Substance
Fraction 1500 µmol/mol)

6Lcylinder1664a*

Sulfur Dioxide in Nitrogen(Nominal Amount-of-Substance
Fraction 2500 µmol/mol)

6Lcylinder1689

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

6Lcylinder1693a*

Sulfur Dioxide in Nitrogen(Nominal Amount-of-Substance
Fraction 50 µmol/mol)

6Lcylinder1694a*

Sulfur Dioxide in Nitrogen(Nominal Amount-of-Substance
Fraction 100 µmol/mol)

6Lcylinder1696a*

Sulfur Dioxide in Nitrogen(Nominal Amount-of-Substance
Fraction 3500 µmol/mol)

6Lcylinder* The SRMs that are marked with * are also available as NTRMs fromcommercial suppliers.
See Table 107.8 on the website for more information.

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Primary Gas
Mixtures

ChemicalComposition

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Standard Reference Materials
for Chemical Composition

Fossil & Alternative
Fuels

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43

Fossil &Alternative Fuels

ChemicalComposition

Metal Constituents in Fossil Fuels(liquid forms)
These materials are intended for analysis of metal traceelements in fuel oil and reference fuels. [Also see Category114.] SRM 1634c is a “No. 6” fuel oil in terms of viscosity but
has a flash point of 43 °C.
SRM

Description

Description

Unit ofIssue

Trace Elements in Coal
(Bituminous)

100 mL

2683c

50 g

Unit of
Issue

Bituminous Coal
(Nominal Mass Fraction 2 % Sulfur)

2684c

Bituminous Coal
(Nominal Mass Fraction 3 % Sulfur)

50 g

2685c

Bituminous Coal
(Nominal Mass Fraction 5 % Sulfur)

50 g

2692c

Bituminous Coal
(Nominal Mass Fraction 1 % Sulfur)

50 g

2693

Bituminous Coal
(Nominal Mass Fraction 0.5 % Sulfur)

50 g

8499

Trace Elements in Coal (Bituminous)

5 x 20 mL

Trace Elements in Fuel Oil

100 mL

8505

Vanadium in Crude Oil

250 mLSee Table 108.2 on the website for more information.

Crude Oil
Description

SRM
1632e

1634c

SRM

Bituminous Coal

Unit of
Issue

2721

Crude Oil (Light-Sour)

5 x 10 mL

2722

Crude Oil (Heavy Sweet)

5 x 10 mL

2778

Mercury in Crude Oil

5 x 10 mL

See Table 108.3(9) on the website for more infomration and additional
resources.

Gasoline
Description

Unit of
Issue

2298

Sulfur in Gasoline (High-Octane)

5 x 20 mL

2299

Sulfur in Gasoline (Reformulated)

5 x 20 mL

See Table 108.3(1) on the website for more information.

SRM

See Table 108.3(2) on the website for more information.

Subbituminous Coal
SRM

Description

Unit of
Issue

1635a

Trace Elements in Coal (Subbitumimous)

50 g

2682c

Subbituminous Coal
(Nominal Mass Fraction 0.5 % Sulfur)

50 g

See Table 108.3(8) on the website for more information.

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Fossil &Alternative Fuels

ChemicalComposition

Residual Fuel Oil

Petroleum Coke
Unit of
Issue

SRM

Sulfur in Residual Fuel Oil(Nominal Mass Fraction 0.7 %)100 mL

2718a

Green Petroleum Coke

50 g

1622e

Sulfur in Residual Fuel Oil(Nominal Mass Fraction 2 %)100 mL

2719

Calcined Petroleum Coke

50 g

1623d

Sulfur in Residual Fuel Oil(Nominal Mass Fraction 0.2 %)100 mL

2717a

Sulfur in Residual Fuel Oil(Nominal Mass Fraction 3 %)100 mLSRM

Description

1619b

See Table 108.3(6) on the website for more information.

Description

Unit of
Issue

See Table 108.3(7) on the website for more information.

Metallurgical Coke
SRM

Description

Unit of
Issue

2775

Sulfur in Foundry Coke

50 g

2776

Sulfur in Furnace Coke

50 g

See Table 108.3(10) on the website for more information.

Middle Distillates
SRM

Description

Unit of
Issue

1616b

Sulfur in Kerosene (Low Level)

100 mL

1617b

Sulfur in Kerosine (High Level)

100 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

See Table 108.3(3) on the website for more information.

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

Fossil &Alternative Fuels

ChemicalComposition

Moisture in Oils and Alcohols(liquid form)

Biomass ConstituentsSRM 2890 Water Saturated 1-Octanol is certified for watercontent and is intended for use in calibrating instruments,and validating the accuracy of analytical methods. Water
concentration values for RMs 8506a and 8509 are notcertified but represent the “best estimate” of the moisture
content determined by NIST and are intended for use indeveloping, and validating methods for the determinationof 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

8509

Moisture in Methanol

5 x 5 mL

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

8644

Dried Corn Biomass Intermediate Before
Conversion

4 x 10 g

8645

Dried Corn Biomass Intermediate After
Conversion

2 x 10 g

See Table 108.9 on the website for more information.

See Table 108.4 on the website for more information.

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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

8499

Trace Elements in Coal (Bituminous)

50 g

See Table 108.6 on the website for more information.

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https://twitter.com/NIST

Follow @NIST

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Standard Reference Materials
for Chemical Composition

Organics

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47

Chemical
Composition

Organics

Organics
SRM
SRM

Description

Description

Unit of
Issue

Unit of
Issue

2266

Hopanes and Steranes in
2,2,4 Trimethylpentane

5 x 1.2 mL

869b

Column Selectivity Test Mixture
for Liquid Chromatography

5 x 1.1 mL

2269

Perdeuterated PAH-I Solution
in Hexane/Toluene

5 x 1.2 mL

870

Column Performance Test Mixture
for Liquid Chromatography

5 x 1.1 mL

2270

Perdeuterated PAH-II Solution
in Hexane/Toluene

5 x 1.2 mL

1491a

Methyl-Substituted Polycyclic Aromatic
Hydrocarbons in Toluene

5 x 1.2 mL

2274

PCB Congeners in 2,2,4-Trimethylpentane

5 x 1.2 mL

1493

Polychlorinated Biphenyl Congeners
in 2,2,4-Trimethylpentane

5 x 1.2 mL

2275

Chlorinated Pesticide Solution-IIin 2,2,4-Trimethylpentane

5 x 1.2 mL

1494

Aliphatic Hydrocarbons
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

1543

GC/MS System Performance Standard

4 x 1 mL2777

5 x 1.2 mL

1588c

Organics in Fish Oil

5 x 1.2 mL

Weathered Gulf of Mexico Crude Oilin Toluene

1647f

Priority Pollutant Polycyclic Aromatic
Hydrocarbons in Acetonitrile

5 x 1.3 mL

2779

Gulf of Mexico Crude Oil

5 x 1.2 mL

2781

Domestic Sludge

2786

Fine Atmospheric Particulate Matter (<4 µm)

100 mg to
140 mg2787

Fine Atmospheric Particulate Matter(<10 µm)

100 mg to
140 mg2860

Phthalates in Polyvinyl Chloride

2 levels,
1 blank,
2 g each2974a

Organics in Freeze-Dried Mussel Tissue(Mytilus edulis)

2975

Diesel Particulate Matter

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 Contaminantsin Smokers’ Urine (Frozen)

5 x 10 mL

3673

Organic Contaminantsin Non-Smokers’ Urine (Frozen)

5 x 10 mL

8182

Fatty Acid Methyl Esters in
2,2,4-Trimethylpentane

5 x 1.2 mL

40 g

1649b

Urban Dust

1650b

Diesel Particulate Matter

200 mg

1936

Great Lakes Sediment

50 g

1941b

Organics in Marine Sediment

50 g

1945

Organics in Whale Blubber

2 x 15 g

1947

Lake Michigan Fish Tissue

5x8g

1953

Organic Contaminants in
Non-Fortified Human Milk5 x 5 mL

1954

Organic Contaminants in
Fortified Human Milk5 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

1974cOrganics 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

8446

4 x 1.2 mL

2257

Perfluorinated Carboxylic Acids andPerfluorooctane Sulfonamide in Methanol

PBDE Congeners in 2,2,4-Trimethylpentane

5 x 1.2 mL

2258

8447

Perfluorinated Sulfonic Acids in Methanol

3 x 1.2 mL

BDE 209 in 2,2,4-Trimethylpentane

5 x 1.2 mL

2259

8690

5 x 1.2 mL

PFAS in Aqueous Film-Forming Foams (AFFF)
Formulation I

4 x 1.2 mL

PCB Congeners in 2,2,4-Trimethylpentane

2260a

Aromatic Hydrocarbon in Toluene

5 x 1.2 mL

8691

Chlorinated Pesticides in Hexane (Nominal
Mass Concentration 2 µg/mL)

5 x 1.2 mL

PFAS in Aqueous Film-Forming Foams (AFFF)
Formulation II

4 x 1.2 mL

2261

8692

4 x 1.2 mL

2262

Chlorinated Biphenyl Congeners
in 2,2,4-Trimethylpentane (Nominal Mass
Concentration 2 μg/mL)

5 x 1.2 mL

PFAS in Aqueous Film-Forming Foams (AFFF)
Formulation III

8693

PFAS in Aqueous Film-Forming Foams (AFFF)
Formulation IV

4 x 1.2 mL

2g

See Table 109.1 on the website for more information.

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

5g
1g

Chemical
Composition

Organics

EPA: Organic Compounds
These SRMs are intended primarily for the calibration of
instrumentation and validation of methods for volatileor semi-volatile organic compound determinations.
Because of its miscibility with water, each SRM can also
be used to fortify aqueous samples with known amountsof 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

Perfluorinated and PolyfluorinatedAlkyl Substances (PFAS)
SRM

Description

Unit of
Issue

1936

Great Lakes Sediment

1947

Lake Michigan Fish Tissue

5x8g

1950

Metabolites in Frozen Human Plasma

5 x 1 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

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

8446

Perfluorinated Carboxylic Acids andPerfluorooctane Sulfonamide in Methanol

4 x 1.2 mL

8447

Perfluorinated Sulfonic Acids in Methanol

3 x 1.2 mL

8690

PFAS in Aqueous Film-Forming Foams (AFFF)
Formulation I

4 x 1.2 mL

8691

PFAS in Aqueous Film-Forming Foams (AFFF)
Formulation II

4 x 1.2 mL

8692

PFAS in Aqueous Film-Forming Foams (AFFF)
Formulation III

4 x 1.2 mL

8693

PFAS in Aqueous Film-Forming Foams (AFFF)
Formulation IV

4 x 1.2 mL

See Table 109.3 on the website for more information.

50 g

40 g

See Table 109.5 on the website for more information.

Crime Scene Investigations
SRM

Description

Unit of
Issue

2460a

Standard Bullet Replica

each

2461

Standard Cartridge Caseeach

See Table 109.4 on the website for more information.

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

Reference Materials 8690 to 8693
Per- and Polyfluoroalkyl Substances (PFAS)
in Aqueous Film-Forming Foams (AFFF)RMs 8690 to 8693
Aqueous film forming foams (AFFFs) containing
PFAS have been used since the 1960s for fire control
and training for aviation crash and jet fuel spills at
military/civilian sites. Due to limited containmentof AFFF release in past events, groundwater anddrinking water have been contaminated with PFAS.
The Department of Defense’s Strategic
Environmental Research and Development
Program supported the effort by NIST to develop
AFFF reference materials (RMs) containing PFAS
representative of the AFFFs which were historicallyused. These RMs were made as four formulations,consisting of different legacy commercial AFFF
products, and include modifications to theformulations to achieve specific PFAS levels.
PFAS were identified and quantified in each RM
using mass spectrometry. These RMs will aid thedevelopment and validation of analytical methods
for laboratories monitoring PFAS in complex
matrices.

A unit of each RM (8690 to 8693, Formulations I to IV,
respectively) consists of four ampoules containing
approximately 1.2 mL of solution.
Learn more:
Reiner JL, Place BJ, Heckert NA, Peter KT, Rodowa AE(2023) Characterization of Reference Materials 8690
to 8693 Per- and Polyfluoroalkyl Substances (PFAS)
in Four Formulations of Aqueous Film-Forming
Foams (AFFF). (National Institute of Standards
and Technology, Gaithersburg, MD), NIST Special
Publication (SP) 260-234.
https://doi.org/10.6028/NIST.SP.260-234

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50

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Standard Reference Materials
for Chemical Composition

Food & Agriculture

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51

Chemical
Composition

Food & Agriculture

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Chemical
Composition

Food & Agriculture

Foods and Beverages - Macroand Micronutrients
These SRMs are for validation of analytical procedures
and calibration of apparatus used in the analysis of traceelements and other analytes in foods and related products.
SRM

Description

Description

Unit of
Issue

3035

Arsenic Species in Apple Juice5 x 1.5 mL

3233

Fortified Breakfast Cereal

60 g each3234

Soy Flour

50 g

3235

Soy Milk

10 x 10 mL

3252

Protein Drink Mix

5 pouchesx 10 g each

3253

Yerba Mate Leaves

2 x 10 g

3254

Green Tea (Camellia sinensis) Leaves

5x3g

3255

Green Tea (Camellia sinensis) Extract

5x1g

3281

Cranberry (Fruit)
Low-Calorie Cranberry Juice Cocktail

5 x 1.2 mL

SRM

Unit of
Issue

1546a

Meat Homogenate

4 cansx 85 g

1548b

Typical Diet

2x5g

1549a

Whole Milk Powder

5 pouchesx 10 g each

5x6g

1566b

Oyster Tissue

25 g

3282

1567b

Wheat Flour

50 g

3287

Blueberry (Fruit)

1568b

Rice Flour

50 g

5 pouchesx 5 g each

1570a

Trace Elements in Spinach Leaves

60 g

3290

Dry Cat Food

5 pouchesx 10 g each

1577c

Bovine Liver

20 g

3530

Iodized Table Salt (Iodide)1845a

Whole Egg Powder

5 pouchesx 10 g each

1 bottle
x 200 g8256

Wild-caught Coho Salmon

1849a

Infant/Adult Nutritional Formula I(milk-based)

10 pouches
x 10 g each

2 jars, 6 g
to 8 g8257

Aquacultured Coho Salmon

1869

Infant/Adult Nutritional Formula II(milk/whey/soy-based)

10 pouches
x 10 g each

2 jars, 6 g
to 8 g8258

Wild-caught Shrimp

1947

Lake Michigan Fish Tissue

5 x 8 grams

2 jars, 6 g
to 8 g2383a

Baby Food Composite

4 x 70 g

8259

Aquacultured Shrimp

2384

Baking Chocolate

5 x 91 g

2 jars, 6 g
to 8 g2385

Slurried Spinach

4 x 70 g

8260

Infant Nutritional Formula(hydrolyzed milk-based)

400 g

2386

Avocado Powder

5 x 10 g

8261

Adult Nutritional Formula (high-protein)

400 g

2387

Peanut Butter

3 x 170 g

See Table 110.1 on the website for more information.

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Chemical
Composition

Food & Agriculture

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 traceelements and other analytes in foods and related products.
SRM

Description

Unit of
Issue

1548b

Typical Diet

2x5g

1565

Mycotoxins in Corn2 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 each1946

Lake Superior Fish Tissue

5 x 7-9grams

Food Contaminants and Allergens
SRM

Description

Unit of
Issue

1566b

Oyster Tissue

25 g

1947

Lake Michigan Fish Tissue

5x8g

1953

Organic Contaminants in
Non-Fortified Human Milk5 x 5 mL

1954

Organic Contaminantsin Fortified Human Milk5 x 5 mL

2387

Peanut Butter

3 x 170 g

3256

Green Tea-Containing Solid
Oral Dosage Form

5 x 2.5 g

8238

Glyphosphate in Oat Flour (High Level)

100 g

8239

Glyphosphate in Oat Flour (Low Level)

100 g

8404

Almond Flour for Allergen Detection

3 x 170 g

8405

Hazelnut Flour for Allergen Detection

5x8g

8642a

FDA Saxitoxin Dihydrochloride Solution

5 x 1.2 mL

2386

Avocado Powder

5 x 10 g

2387

Peanut Butter

3 x 170 g

3233

Fortified Breakfast Cereal

60 g each3234

Soy Flour

50 g

3235

Soy Milk

10 x 10 mL

3253

Yerba Mate Leaves

2 x 10 g

3254

Green Tea (Camellia sinensis) Leaves

5x3g

3255

Green Tea (Camellia sinensis) Extract

5x1g

SRM

3278

Tocopherols in Edible Oils

5 x 1 mL

1515

Apple Leaves

50 g

3281

Cranberry (Fruit)

5x6g

1547

Peach Leaves

50 g

3282

Low-Calorie Cranberry Juice Cocktail

5 x 1.2 mL

1570a

Trace Elements in Spinach Leaves

60 g

3287

Blueberry (Fruit)

5 pouchesx 5 g each

1573a

Tomato Leaves

50 g

1575a

Trace Elements in Pine Needles (Pinus taeda)

50 g

8260

Infant Nutritional Formula(hydrolyzed milk-based)

400 g

8261

Adult Nutritional Formula (high-protein)

400 g

8403

Cocoa Flavanol Extract

5x2g

See Table 110.2 on the website for more information.

Agricultural Materials (powder
form)
Description

See Table 110.4 on the website for more information.

See Table 110.1 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 8441a was prepared and analyzed by theFederal Grain Inspection Service program, Grain Inspection
Packers and Stockyards Administration of the UnitedStates 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.

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Unit of
Issue

Chemical
Composition

Food & Agriculture

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

SRM

Description

3262

St. John’s Wort (Hypericum perforatum L.)
Aerial Parts

5 x 3.3 g

3268

Kudzu (Pueraria montana var. lobata) Extract

5x1g

3275

Omega-3 and Omega-6 Fatty Acids
in Fish Oil

3279

Chromium Dietary Supplement

3281

Cranberry (Fruit)

3282

Low-Calorie Cranberry Juice Cocktail

5 x 1.2 mL

3283

Cranberry Extract

5 x 2.5 g

3284

Cranberry-Containing Solid Oral
Dosage Form

5 x 2.5 g

3285

Mixed-Berry Containing Solid
Oral Dosage Form

5 x 2.5 g

3289

Multivitamin Tablets

30 x 5bottles

3291

Bilberry Extract

5x1g

3294

Multielement Tablets

30 x 5bottles

3299

Ground Turmeric (Curcuma longa L.) Rhizome

5x3g

3300

Curcumin Extract of Turmeric(Curcuma longa L.) Rhizome

5x1g

3384

Ground Asian Ginseng (Panax ginseng C.A.
Meyer) Rhizome

5x3g

3385

Asian Ginseng (Panax ginseng) Extract

5x1g

3389

Ginsenosides Calibration Solutions

5 x 1 mL

3398

Ginger (Zingiber officinale) Rhizome

5 x 1.6 g

3530

Iodized Table Salt (Iodide)1 x 200 g

8037

Krill Oil3 x 4.5 mL

8183

Omega-3 and Omega-6 Fatty Acids
in Botanical Oils

4 x 1.2 mL

8186

Soy Protein Isolate

5 x 10 g

8187

Soy Protein Concentrate

5 x 10 g

8188

Soy-Containing Solid Oral Dosage Form

5 x 2.6 g

8650

Ground Kudzu (Pueraria montana var. lobata)
Rhizome

5x3g

See Table 110.5 on the website for more information.

Tobacco-Related Materials
SRM
3222

Description
Cigarette Tobacco Filler

Unit ofIssue
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

Unit ofIssue

3 ea
2 x 1.2 mL
5x6g
5x6g

3232

Kelp Powder (Thallus laminariae)

3235

Soy Milk

3246

Ginkgo biloba (Leaves)

5x3g

3247

Ginkgo biloba (Extract)

5x1g

3248

Ginkgo-Containing Tablets

5x1g

3250

Saw Palmetto (Serenoa repens) Fruit

5x6g

3251

Saw Palmetto (Serenoa repens) Extract

5 x 1 mL

8652

Kudzu-Containing Solid Oral Dosage Form

5 x 2.6 g

3254

Green Tea (Camellia sinensis) Leaves

5x3g

8644

Ginseng-Containing Solid Oral Dosage Form

5 x 2.6 g

Ginger (Zingiber officinale) Extract

5x3g

3x5g
10 x 10 mL

3255

Green Tea (Camellia sinensis) Extract

5x1g

8666

3256

Green Tea-Containing Solid Oral Dosage Form

5 x 2.5 g

See Table 110.9 on the website for more information.

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Chemical
Composition

Food & Agriculture

Distribution of SRMs in the AOAC Food Triangle

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 eachsector 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 dietin 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 onsuggestions from user communities.
1

SRM 1588c Organics in Fish Oil
SRM 3275 Fatty Acids in Fish Oils
2 SRM 2384 Baking Chocolate
SRM 2386 Avocado Powder
3 SRM 2387 Peanut Butter

4 SRM 1546a Meat Homogenate
SRM 1845a Whole Egg Powder
5 SRM 1568b Rice Flour

6 SRM 1548b 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 FlourSRM 3290 Dry Cat Food
9 SRM 1946 Lake Superior Fish Tissue

SRM 2383a Baby Food Composite
SRM 3233 Fortified Breakfast Cereal

SRM 1947 Lake Michigan Fish Tissue
SRM 2974a Mussel Tissue

SRM 3287 Blueberries
SRM 1869 Infant/Adult Nutritional Formula

SRM 3252 Protein Drink Mix

1 W.R. Wolf, K.W. Andrews (1995) Fresenius J. Anal Chem 352:73 -76.

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Measuring Herbicide Residue in
Oat-Based Food Products
Reference Material 8238 and 8239 Glyphosate in Oat Flour
Glyphosate in Oat FlourThe Environmental Protection Agency (EPA) establishes
tolerances for pesticide and herbicide residues in foodthat are still considered safe for consumption. For food
manufacturers to test their products a reference material isrecommended to ensure their measurements are accurate.
Oats are of particular interest as the herbicide, glyphosate,is used as a desiccant to dry out the crop before harvest.
This allows for earlier harvests and greater uniformityof crops. Consequently, glyphosate is typically found at
higher levels than other herbicides.
The reference materials are oat flour obtained fromcommercial sources. The level of glyphosate in the
RM 8238 (high level) was targeted to represent typicalglyphosate levels found in oats from conventional

agriculture practices. The level of glyphosate in RM 8239
(low level) was targeted to represent typical glyphosate
levels found in oats from organic agriculture practices, yethigh enough to detect by current glyphosate analyticalmethods These materials are intended for harmonizing
measurements of glyphosate in grains and similarmaterials.
A unit of RM 8238 or 8239 consists of one bottle ofoat flour. Each bottle contains approximately 100 g ofmaterial.
https://www.nist.gov/news-events/news/2023/01/measuring-herbicideresidue-oat-based-food-products

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Chemical
Composition

Food & Agriculture

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Standard Reference Materials
for Chemical Composition

Geological
Materials & Ores

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59

Geological
Materials & Ores

ChemicalComposition

Ores(powder form)
SRM

Description

Clays(powder form)
Unit of
Issue

SRM

Description

Unit of
Issue

25d

Manganese Ore

60 g

97b

Flint Clay

60 g

180

Fluorspar, High Grade

120 g

98b

Plastic Clay

60 g

182

Lithium Ore (Petalite)

45 g

679

Brick Clay

75 g

183

Lithium Ore (Lepidolite)

45 g

See Table 111.4 on the website for more information.

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

670

Rutile Ore

90 g

690

Iron Ore Canada

100 g

SRM

691

Iron Oxide, Reduced

100 g

1d

Limestone, Argillaceous

692

Iron Ore, Labrador

100 g

70b

Potassium Feldspar

693

Iron Ore (Nimba)

100 g

81a

Glass Sand

75 g

886

Refractory Gold Ore

200 g

88b

Dolomitic Limestone

75 g

1835

Borate Ore

60 g

99b

Soda Feldspar

40 g

2430

Scheelite Ore

100 g

165a

Glass Sand

75 g

278

Obsidian Rock

35 g

607

Potassium Feldspar

5g

688

Basalt Rock

60 g

1413

High Alumina Sand

2429

Flue Gas Desulfurization Gypsum

2780a

Hard Rock Mine Waste

See Table 111.2(1) on the website for more information.

Ores (powder form)
Phosphate Rocks and Bauxites
SRM

Description

Unit of
Issue

69b

Bauxite (Arkansas)

60 g

120c

Phosphate Rock (Florida)

90 g

600

Bauxite, Australian-Darling Range

90 g

694

Phosphate Rock, Western

90 g

696

Bauxite, Surinam

60 g

697

Bauxite, Dominican

60 g

698

Bauxite, Jamaican

60 g

Rock and Minerals(powder form)
Description

See Table 111.5 on the website for more information.

See Table 111.2(3) on the website for more information.

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Unit ofIssue
70 g
1 x 40 g

75 g
1 x 200 g
50 g

Geological
Materials & Ores

ChemicalComposition

Refractories (powder form)
SRM

Description

Unit ofIssue

76a

Burnt Refractory(Nominal Mass Fraction 40 % Al2O3)

75 g

77a

Burnt Refractory(Nominal Mass Fraction 60 %Al2O3)

75 g

78a

Burnt Refractory(Nominal Mass Fraction 70 %Al2O3)

75 g

198

Silica Brick

45 g

199

Silica Brick

45 g

See Table 111.6 on the website for more information.

Soils, Sediments, and Sludges(powder form)
SRMs 2586, 2587, 2700 2701, 2709a, 2710a, 2711a, 2781,
2782 also have non-certified leach data. See certificate fordetails and leach methods used.
SRM

Description

Unit of
Issue

1646a

Estuarine Sediment

70 g

2586

Trace Elements in Soil
Containing Lead From Paint(Nominal Mass Fraction of 500 mg/kg Lead)

55 g

2587

Trace Elements in Soil
Containing Lead from Paint(Nominal Mass Fraction of 3000 mg/kg Lead)

55 g

2700

Hexavalent Chromium in Contaminated Soil
(Low Level)

75 g

2701

Hexavalent Chromium in Contaminated Soil(High Level)

75 g

2702

Inorganics in Marine Sediment

50 g

2703

Sediment for Solid Sampling (Small Sample)
Analytical Techniques

5g

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 ElevatedTrace Element Concentrations

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.

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Geological
Materials & Ores

ChemicalComposition

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Standard Reference Materials
for Chemical Composition

Ceramics & Glasses

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63

Chemical
Composition

Ceramics & Glasses

Nitrides(powder form)
SRM
8983

Description
Silicon Nitride Powder

Trace Elements(wafer form)
Unit of
Issue
4.5 g

See Table 112.1 on the website for more information.

SRM

Cemented Carbides(powder form)
SRMs 887-889 are prepared from sintered tungsten carbide
base materials.
SRM

Description

These SRMs are for calibrating instruments and evaluating
analytical techniques used to determine trace elements ininorganic matrices. NOTE: The nominal glass compositionof SRMs 610 through 617 is 72 % SiO2, 12 % CaO,
14 % Na2O, and 2% Al2O3.

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.

Description

606

Trace Elements in Basalt Glass

glass
mountedin 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.

Glasses(powder and solid forms)
SRM

Description

Unit ofIssue

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

620

Soda-Lime, Flat

3 platelets

1411

Soft Borosilicate Glass

10 platelets

1412aMulticomponent Glass (disk form)

disk

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 form)

Unit of
Issue

glass
mountedin epoxy

70 g

See Table 112.3 on the website for more information.

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Standard Reference Materials
for Chemical Composition

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

65

Chemical
Composition

CementCements and Related Materials(powder form)

Portland Cement Clinkers(solid form)

These portland (1880b, 1881b, 1884b, 1885b, 1886a,
1887b, 1888b, and 1889b) and calcium aluminate (1882aand 1883a) cement SRMs are for x-ray spectroscopic andchemical analysis of cements and related materials.
SRM

Description

Unit of
Issue

These SRMs provide certified values for the abundance ofmajor phases in cement clinkers, i.e., the percentages ofalite (C3S), belite (C2S), aluminate (C3A), and ferrite (C2(A,F)).
NOTE: In cement chemist notation, C=CaO, S=SiO2, A=Al2O3
and F=Fe2O3.
Description

Unit of
Issue

633a

Portland Cement

4x5g

SRM

634a

Portland Cement

100 g

2686b

Portland Cement Clinker

50 g

Portland Cement Clinker

5x8g

Portland Cement Clinker

3 x 10 g

635a

Portland Cement (Blended with Slag)

5x5g

2687a

1880b

Portland Cement

5x5g

2688

1881b

Portland Cement (Blended with Fly Ash)

5x5g

See Table 113.2 on the website for more information.

1882aCalcium Aluminate Cement

4x5g

1883a

Calcium Aluminate Cement

4x5g

1884b

Portland Cement

5 x 4.5 g

1885bPortland Cement

5x5g

1886a

Portland Cement(White Portland Cement with Low Iron)

4x5g

1886b

White Portland Cement

5x5g

1887b

Portland Cement

5x4g

1888b

Portland Cement

4x5g

1889b

Portland Cement(Blended with Limestone)

5x5g

2429

Flue Gas Desulfurization Gypsum

1 x 200 g

2696

Silica Fume (powder form)

70 g

See Table 113.1 on the website for more information.

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Standard Reference Materials
for Chemical Composition

Engine Wear
Materials

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67

Engine Wear
Materials

ChemicalComposition

Lubricating Oils
SRM

Description

Unit of Issue

1085c

Wear Metals in Lubricating Oil

10 ampoules (1.2 g each)

1818a

Chlorine in Lubricating Base Oils

set (5)

1819a

Sulfur in Lubricating Base Oilset (5)1848

Lubricating Oil Additive Package

100 g

See Table 114.2 on the website for more information.

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Standard Reference Materials
for Chemical Composition

Forensics

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69

Chemical
Composition

Forensics

Ethanol Solutions
SRM

Description

Crime Scene Investigations
Unit of
Issue

SRM

Description

Unit of
Issue

1828c

Ethanol-Water Solutions (six levels)

6 x 1.2 mL

2460a

Standard Bullet Replica

each

2891

Ethanol-Water Solution(Nominal Mass Fraction 0.02 %)5 x 1.2 mL

2461

Standard Cartridge Case

each

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 115.1(1) on the website for more information.

Drugs of Abuse
SRM
1507b

Description
THC-9-COOH in Freeze-Dried Urine

See Table 115.1(2) on the website for more information.

Unit ofIssue
set (3)

See Table 115.1(4) on the website for more information.

DNA Profiling and Nucleic Acid
Materials
Standard Reference Material (SRM) 2372a is intended
primarily for use in the value assignment of humangenomic deoxyribonucleic acid (DNA) forensic quantitationmaterials. SRM 2372a consists of three well-characterized
human genomic DNA materials in pH 8.0 aqueous buffer.
The components are derived from human buffy coatsamples and labeled A, B, and C. Component A consistsof genomic DNA from a single male donor. Component
B consists of genomic DNA from a single female donor.
Component C consists of a gravimetric mixture of genomic
DNA (1 part male donor to 3 parts female donor). SRM
2372a is certified for copy number and DNA concentration(ng/µL). A unit of the SRM consists of one sterile 0.5 mL vialof each component, each vial containing approximately
55 μL of DNA solution. Each of these vials is labeled and issealed with a color -coded screw cap.
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 asexternal, 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, thecontrols will mimic either “sense” or “anti-sense” eukaryotic
messenger RNA (mRNA).

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Chemical
Composition

Forensics

SRM 2392 is intended to provide quality control when
performing the polymerase chain reaction (PCR) andsequencing of human mitochondrial DNA (mtDNA) forforensic 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 celllines plus cloned DNA from a region that is difficult tosequence. The certificate accompanying the SRM details
the base pair sequences of the DNA, and the sequencesof 58 unique primer sets which permit the amplificationand sequencing of any specific area, or the entire humanmitochondrial DNA (strand). SRM 2392 consists of threefrozen components packaged in one box. For further
information see: SP260-155.
RMs 8366, 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 genepanels. Specifically, the material can be used to obtain
estimates of true positives, false positives, true negatives,and false negatives for variant calls.
SRM

Description

Unit of
Issue

2372a

Human DNA Quantitation Standard

3 x 55 µL

2374

DNA Sequence Library for External
RNA Controls

96 tubes

2391d

PCR-Based DNA Profiling Standard

5 vials

8230

Saccharomyces cerevisiae NE095 Cells
for Cell Counting and DNA-based Detection(freeze dried)

16 vials(12 yeast,
4 matrix)

8375

Microbial Genomic DNA Standards
for Sequencing Performance Assessment(MG-001, MG-002, MG-003, MG-004)

4 vials,
1 eachSRM

Description

Unit of
Issue

8376

Microbial Pathogen DNA Standards
for Detection and Identification

8391

Human DNA for Whole-Genome Variant
Assessment (Son of Eastern European
Ashkenazi Jewish Ancestry) (HG-002)

1 vial8391(QTY10)

Human DNA for Whole-Genomet Variant
Assessment (Son of Eastern European
Ashkenazi Jewish Ancestry) (HG-002)

10 vialsof
RM 8391

8392

Human DNA for Whole-Genome Variant
Assessment (Family Trio of Eastern European
Ashkenazi & Jewish Ancestry)(HG-002, HG-003, HG-004)

3 vials,
1 each8393

Human DNA for Whole-Genome Variant
Assessment (Son of Chinese Ancestry)(HG-005)

1 vial8393(QTY10)

Human DNA for Whole-Genome Variant
Assessment (Son of Chinese Ancestry)(HG-005)

10 vialsof
RM 8393

8398

Human DNA for Whole-Genome Variant
Assessment (Daughter of Utah/European
Ancestry)(HG-001)

1 vial8398(QTY10)

Human DNA for Whole-Genome Genome
Variant Assessent (Daughter of Utah/
European
Ancestry) (HG-001)

10 vialsof
RM 8398

See Table 115.1(3) on the website for more information.

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20 tubes

Chemical
Composition

Forensics

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Standard Reference Materials
for Physical Properties

Ion Activity

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73

Physical
Properties

Ion Activity

pH Calibration (powder form)

pD Calibration (powder form)

These SRMs are used to prepare solutions of knownhydrogen 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.
Description

Unit of
Issue

185i

Potassium Hydrogen Phthalate, pH Standard

60 g

186g

pH Standards
Potassium Dihydrogen Phosphate (186-I-g)
Disodium Hydrogen Phosphate (186-II-g)

set

187f

Sodium Tetraborate Decahydrate(Borax) pH Standard

30 g

188

Potassium Hydrogen Tartrate (pH Standard)

60 g

189c

Potassium Tetroxalate Dihydrate pH Standard

65 g

191d

Sodium Bicarbonate (191d-I)
Sodium Carbonate (191d-II) (ph Standard)

1 x 25g
1x 30g2193b

Calcium Carbonate pH Standard(used as saturated calcium hydroxide solution)(pH Standard)

30 g

SRM

See Table 201.1 on the website for more information.

These SRMs are for the preparation of solutions of known
deuterium ion activity to calibrate pH instruments toindicate pD data. SRMs 2186-I and 2186-II, and 2191a and2192a are certified for use as admixtures only.
SRM

Description

Unit of
Issue

2185

Potassium Hydrogen Phthalate pD Standard

60 g

2186I

Potassium Dihydrogen Phosphate

30 g

2186II

Disodium Hydrogen Phosphate

30 g

2191a

Sodium Bicarbonate

30 g

2192a

Sodium Carbonate

30 g

See Table 201.3 on the website for more information.

Ion-Selective Electrode Calibration(powder form)
These SRMs are certified for the calibration of ion-selective
electrodes and have conventional ionic activities based on
the Stokes-Robinson hydration theory for ionic strengths
greater than 0.1 mol/L.
SRM

Description

Unit of
Issue

2201

Sodium Chloride (Ion-Selective)

125 g

2203

Potassium Fluoride (Standard for
Ion-Selective Electrodes)

125 g

See Table 201.4 on the website for more information.

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Standard Reference Materials
for Physical Properties

Polymeric Properties

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75

Polymeric
Properties

Physical
Properties

Polymers(liquid, pellet, and powder forms)
These SRMs are for the calibration of instrumentation usedin polymer technology science for the determination ofmolecular weight, and molecular weight distribution andas characterized samples for other physical properties ofpolymers.

Polymers
SRM

Description

Unit of
Issue

705a

Polystyrene(Narrow Molecular Weight Distribution)

5g

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)

2g

1479

Polystyrene(Narrow Molecular Weight Distribution)

1482aMelt Flow Rate
Unit of
Issue

SRM

Description

1473c

Low Density Polyethylene Resin

60 g

1474b

Polyethylene Resin

60 g

1475a

Polyethylene, Linear

50 g

1476a

Branched Polyethylene Resin

12 g

1496

Unpigmented Polyethylene Gas Pipe Resin

0.9 kgSee Table 202.1(2) on the website for more information.

Viscosity
SRM

Description

Unit of
Issue

2492

Bingham Paste Mixture
for Rheological Measurements

kit fortwobatches

2493

Bingham Mortar Mixture
for Rheological Measurements

kit fortwobatches2497
2g

Bingham Concrete Mixture
for Rheological Measurements

kit forone
batch

Linear Polyethylene Narrow Molecular Mass
Distribution (Nominal Mass-Average Molar
Mass of 13 600 g/mol)

0.3 g

See Table 202.1(3) on the website for more information.

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)

2g

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

Elements in Polymers
SRM

Description

Unit of
Issue

2855

Additive Elements in Polyethylene

2859

Restricted Elements in Polyvinyl Chloride

25 g

2861

Restricted Elements in Polyvinyl Chloride

25 g

See Table 202.2 on the website for more information.

See Table 202.1(1) on the website for more information.

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3 Levels,
80 g eachStandard Reference Materials
for Physical Properties

Thermodynamic
Properties

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77

Thermodynamic
Properties

		 Physical
Properties

Combustion Calorimetry(powder form)

Enthalpy and Heat Capacity

These SRMs are for use as standards for calibration of
combustion bomb calorimeters used in checking theperformance of apparatus, and analytical procedures.
SRM

Description

Unit ofIssue

39j

Benzoic Acid (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.

Differential Scanning Calorimetryand Differential Thermal Analysis
These SRMs are intended for calibration and validationof differential scanning calorimeters, differential thermal
analyzers, and similar instruments.
SRM

Description

Unit of
Issue

2232

Indium DSC Calibration Standard Temperature and Enthalpy of Fusion

2234

Gallium for Thermal Analysis

2g

2235

Bismuth for Thermal Analysis

1.5 g

1g

SRM

Description

Unit of
Issue

705a

Polystyrene (Narrow Molecular
Weight Distribution)

5g

720

Sapphire Heat Capacity

15 g

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 purephenacetin and phenacetin doped with p-aminobenzoic
acid.
SRM
1514

Description
Thermal Analysis Purity Set

Unit ofIssue
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.

See Table 203.5 on the website for more information.

SRM
741a

Description
Tin Freezing-Point Standard

See Table 203.8 on the website for more information.

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Unit of
Issue
200 g

Thermodynamic
Properties

Physical
Properties

Reference Points (solid forms)
These moderate purity SRMs are for use in preparingreference point devices and for calibrating thermometers,
thermocouples, and other temperature measuring devices.
SRM
742

Description
Aluminum Oxide Pyrometric Standard

1,3-Dioxolan-2-one Triple Point Standard

Thermal Conductivity - Fibrous Glass Board

each

1453

Thermal Conductivity Expanded Polystyrene Board

each

8420

Electrolytic Iron

Unit ofIssue
60 g

See Table 203.11 on the website for more information.

Description

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

Thermal Resistance Properties of
Fibrous Glass and Fumed Silica Board
Unit of
Issue

1749

Gold versus Platinum Thermocouple
Certified Thermometer

each

1967a

High-Purity Platinum Thermoelement(platinum wire)

0.51 mm D
x1mL

See Table 203.13 on the website for more information.

0.64 cm Dx 5 cm L

See Table 203.16 on the website for more information.

Thermocouple Materials
and Thermometers
SRM

Unit of
Issue

1450e

These SRM fixed point devices are for use in the realization ofinternationally accepted secondary reference points and/or
triple points. They are not intended for calibration ofdifferential scanning calorimeters.

1972

Description

10 gFreezing Point, Melting Point, andTriple Point Cells (solid forms)

Description

SRM

Unit of
Issue

See Table 203.10 on the website for more information.

SRM

Thermal Conductivity of Iron(rod form), Fibrous Glass, andPolystyrene

Unit of
Issue

SRM

Description

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

3452

High-Temperature Seebeck CoefficientStandard (295 K to 900 K)

bar

See Table 203.18 on the website for more information.

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NIST Measurement Services Websites of Interest
Standard Reference Materials

.•

,

L

,

Standard Reference Materials
https://www.nist.gov/srm
Historical Archived Certificates/Reports of Investigation
https://shop.nist.gov/ccrz__
CCPage?pageKey=SRMArchive&cclcl=en_US

Standard Reference Data

.

.•

,

L

,
'

NIST Scientific and Technical Databases
https://www.nist.gov/srd

Calibrations

_•

,

L

Calibrations Services
https://www.nist.gov/calibrations

Standard Reference Instruments-_: • '°

1
,
I

',
I

I

,
I

Standard Reference Instruments
https://www.nist.gov/sri

80

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Standard Reference Materials
for Physical Properties

Optical Properties

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81		 Physical
Properties

Optical Properties

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; eachof which addresses a specific instrumental parameter ofan 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 Standard for Ultraviolet
and Visible Spectrophotometryset (12)

1921b

Infrared Transmission Wavelength/
Wavenumber Standard

1 card1928

Infrared Specular High Reflectance Standard(Nominal Diameter 51 mm)

disk

1929

Infrared Specular High ReflectanceStandard (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 (240 nm to 650 nm)

cuvette2035b

Ultraviolet-Visible-Near-Infrared Wavelength/
Wavenumber Transmission Standard

each

2036

Near Infrared Wavelength/
Wavenumber Reflection Standard

each

Infrared Reflectance (solid form)
SRM
2036

Description

Unit of
Issue

Near Infrared Wavelength/
Wavenumber Reflection Standard

each

See Table 204.2 on the website for more information.

Optical Rotation (powder form)
SRM 17g is intended for calibrating or checking polarimetricapparatus. In aqueous solution, the optical rotation of SRM
17g is value assigned at four wavelengths.

SRM
17g

Description
Sucrose Optical Rotation

See Table 204.2 on the website for more information.

See Table 204.1 on the website for more information.

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

Unit ofIssue
60 gPhysical
Properties

Optical Properties

Fluorescence and Raman
Spectroscopy
SRM

Description

Photography (chart form)
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

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

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
1010a

Description
Microcopy Resolution Test Charts

See Table 204.2 on the website for more information.

See Table 204.2 on the website for more information.

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

Unit ofIssue
set (5)

		 Physical
Properties

Optical Properties

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Standard Reference Materials
for Physical Properties

Radioactivity

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87Physical
Properties

Radioactivity

Radiation Dosimetry(wire form)

Special Nuclear Materials

This SRM is a cobalt-in-aluminum alloy wire 0.5 mm indiameter and 1 m in length for use as a neutron density
monitor standard.
Radionuclide Calibration Services
Radioactive SRM Purchasing Instructions & License
Certification Form
Radioactive SRMs-General Info
SRM
953

Description
Neutron Density Monitor Wire

Unit ofIssue

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 ofStandards 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 604394899. Attn: Reference Materials Sales; Phone (630) 252-2767;
Fax (630) 252-6256; E-mail usdoe.nbl@ch.doe.gov

1m

See Table 205.1 on the website for more information.

Radiopharmaceuticals (solution and gaseous forms)
These SRMs are intended for the calibration of radioactivity-measuring instruments. They are calibrated in terms ofactivity 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*

8

February

4401L

Iodine-131 Radioactivity Standard

5 mL

5 MBq/g

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

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

Physical
Properties

Radioactivity

Radioactive Solutions
These SRMs are intended for the calibration of radioactivity
measuring instruments and for the monitoring of chemicaland geochemical processes. They are calibrated in termsof activity per gram of solution. Each SRM is containedin a flame-sealed glass ampoule or bottle and, except as
noted, consists of the radionuclide dissolved in an aqueous
solution (usually acidic).

SRM

Description

Unit of
Issue

4332e

Americium-243 Radioactivity Standard

5 mL

4334j

Plutonium-242 Radioactivity Standard

5 mL

4337

Lead-210 Radioactivity Standard

5 mL

4338b

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

Unit of
Issue

4370d

Europium-152 Radioactivity Standard

5 mL

4915f

Cobalt-60 Radioactivity Standard

5 mL

Carbon-14-n-hexadecane Radioactivity
Standard

5 mL

4919I

Strontium-90 Radioactivity Standard

5 mL

4226d

Nickel-63 Radioactivity Standard

5 mL

4926e

Hydrogen-3 Radioactivity Standard

20 mL

4233f

Cesium-137 Radioactivity Standard

5 mL

4927g

Hydrogen-3 Radioactivity Standard

5 mL

4239a

Strontium-90 Radioactivity Standard

5 mL

4929f

Iron-55 Radioactivity Standard

5 mL

4251d

Barium-133 Radioactivity Standard

5 mL

4943

Chlorine-36 Radioactivity Standard

3 mL

4274

Holmium-166m Gamma-ray Emission
Rate Standard

5 mL

4949d

Iodine-129 Radioactivity Standard

5 mL

4965a

Radium-226 Radioactivity Standard

5 mL

Radium-226 Radioactivity Standard

5 mL

When an import permit for radioactive material is requiredof a customer outside the U.S., NIST must have a copy tocomplete an order and facilitate shipment.
SRM
4222d

Description

4288b

Technetium-99 Radioactivity Standard

5 mL

4966a

4320b

Curium-244 Radioactivity Standard

5 mL

4967a

Radium-226 Radioactivity Standard

5 mL

Radium-226 Radioactivity Standard

5 mL

4321d

Natural Uranium Radioactivity Standard

5 mL

4969

4322d

Americium-241 Radioactivity Standard

5 mL

See Table 205.4 on the website for more information.

4323c

Plutonium-238 Radioactivity Standard

5 mL

4324b

Uranium-232 Radioactivity Standard

5 mL

4326a

Polonium-209 Radioactivity Standard

5 mL

4328d

Thorium-229 Radioactivity Standard

5 mL

4329a

Curium-243 Radioactivity Standard

5 mL

4330c

Plutonium-239 Radioactivity Standard

3 mL

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Physical
Properties

Radioactivity

Carbon-14 Dating (solid form)

Ordering Radioactive SRM(s)?

This SRM is an international standard for contemporary
carbon-14 against which world-wide measurements canbe compared. Each SRM consists of approximately 225 gof a 450 kg lot of oxalic acid prepared by fermentation of
French beet molasses from the 1977 spring, summer, andautumn harvests.
SRM
4990C

Description
Oxalic Acid

Unit ofIssue
8 x 28 g

See Table 205.7 on the website for more information.

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 informationneeded. Based on the regulations that apply to you
as a customer either within the United States (UnitedStates includes Puerto Rico and all territories, andpossessions of t h e United States) or outside theUnited States, NIST will determine if your request
can be cleared f o r processing. Requirements forthe different customer locations are outlined below.
Customers in Organizations within the United States:

Radioactive Natural Matrix
Materials (powder form)
For further information on the Descriptions ofRadioactive Environmental Natural Matrix Standards
click link: Descriptions of Environmental Natural

Matrix Standards

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

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 toreceive and possess radioactive material. Once NIST
makes a determination, you will be notified with thedisposition of your request. For approved requests, yourorder confirmation or quote will be forwarded to you.
Customers in Organizations outside the United States:•

Radionuclide Calibration Services
Radioactive SRM Purchasing Instructions & License
Certification Form
Radioactive SRMs-General Info
Unit of
Issue

SRM

Description

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

Freshwater Lake Sediment Environmental
Radioactivity Standard

25 g

4355

Peruvian Soil Powder

75 g

4356

Ashed Bone Environmental
Radioactivity Standard

15 g

4357

Ocean Sediment Environmental
Radioactivity Standard

85 g

4358

Ocean Shellfish Radionuclide Standard

150 g

4359

Seaweed Radionuclide Standard

300 g

Import permit for radioactive material: Yourcountry 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 yourorder and facilitate shipment with the carrier.

•

Export controls: NIST is required to determine if yourcountry is subject to export controls as determinedby the Nuclear Regulatory Commission (NRC)
and the U.S. Department of Commerce, Bureau ofIndustry and Security. NIST will review those controls
and determine the disposition of your request.

•

Once NIST has received your import permit (ifapplicable) 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.

See Table 205.11 on the website for more information.

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Standard Reference Materials
for Physical Properties

Electrical Properties

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91

Electrical
Properties

Physical
Properties

Electrical Resistivity andConductivity of Iron (rod form)
SRM
8420

Description
Electrolytic Iron

Unit ofIssue
0.64 D x 5.0

See Table 206.1 on the website for more information.

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Standard Reference Materials
for Physical Properties

Metrology

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93Physical
Properties

Metrology

Depth Profiling (wafer form)
SRMs 2133 and 2134 are for calibrating the secondary ion
response to minor and trace element levels in a siliconmatrix. SRM 2133 is certified for phosphorus; SRM 2134 iscertified for arsenic. SRM 2135c is for calibrating equipmentused to measure sputtered depth and erosion rates insurface 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

See Table 207.3 on the website for more information.

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

Physical
Properties

Metrology

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 magnificationsin scanning electron microscopes (SEMs). It was designed
to provide good contrast at low and high electron landing
energies (accelerating voltages). Beyond testing scalecalibration, 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, andother types of microscopes. Most SEMs require a set ofcalibration structures of different sizes to cover the fullrange of possible magnifications. This Reference Material
is designed to meet that need.
SRM

Description

Unit of
Issue

2196

Axial Resolution Standard for Optical
Medical Imaging

each

8820

Scanning Electron Microscope Scale
Calibration Artifact

each

See Table 207.9 on the website for more information.

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

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Standard Reference Materials
for Physical Properties

Liquids & Glasses

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97

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
622

Description
Soda-Lime-Silica Glass

Unit ofIssue
2.2 kgElectrical Properties of Dielectrics
SRM 624 is intended to validate test methods and forcalibrating equipment used to determine the dc volume
resistivity of glass per ASTM C 657.
SRM
624

Description
Lead-Silica Glass for dc Volume Resistivity

Unit of
Issue
200 g

See Table 208.2 on the website for more information.

See Table 208.1 on the website for more information.

Viscosity Fixpoints (solid forms)

Viscosity of Glass (bar form)
SRM 717a is for checking the performance of hightemperature viscosity equipment (rotating cylinders) andlow temperature viscosity equipment (fiber elongation,
beam bending, parallel plates, etc.).
SRM
717a

Description
Hi Boron Glass Viscosity

Aluminosilicate Glass for
Liquidus Temperature

block

disk

717a

Hi Boron Glass Viscosity

disk

See Table 208.5 on the website for more information.

Density
SRMs 211d and 2214 are for reference in the determinationof the density of liquids. The certified densities were
determined by means of hydrostatic weighing and areprovided at 15 °C, 20 °C, and 25 °C.
SRM

250 g

211d

Toluene Liquid Density Extended Range

4 x 5 mL

2214

Isooctane Liquid Density

4 x 5 mL

Description

See Table 208.8 on the website for more information.

Relative Stress Optical Coefficient(bar form)

709

Description
Extra Dense Lead Glass

Unit of
Issue

Unit of
Issue

See Table 208.4 on the website for more information.

SRM

Unit of
Issue

Extra Dense Lead GlassThis SRM is for checking test methods and for calibrating
equipment used to determine the liquidus temperature ofglass by the gradient furnace methods per ASTM C 829.

1416

Description

709

Glass Liquidus Temperature(solid form)

Description

SRM

Unit of
Issue

See Table 208.3 on the website for more information.

SRM

These SRMs are for the calibration of equipment for thedetermination of the softening, annealing, and strain
points of glass.

Unit of
Issue
block

See Table 208.6 on the website for more information.

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Standard Reference Materials
for Physical Properties

X-Ray Diffraction

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99

Physical
Properties

X-Ray Diffraction

Diffraction and Scattering
SRMs 676a, 674b, 1878b, and 1879b consist of high phase purity materials for use in the quantitative analysis of samples by theinternal standard method. 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 sinteredalumina 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

660c

Line Position and Line Shape Standard for Powder Diffraction (Lanthanum Hexaboride Powder)

6g

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)

5g

1879b

Respirable Cristobalite (Quantitative X-Ray Powder Diffraction Standard)

5g

1976c

Instrument Response Standard for X-Ray Powder Diffraction

disc

1979

Powder Diffraction Line Profile Standard for Crystallite Size Analysis (Nano-Crystalline ZnO Powder)

2x3g

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

couponSee Table 209.1 on the website for more information.

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Standard Reference Materials
for Engineering Materials

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

101

Engineering
Materials

SizingParticle Size
(powder and solid forms)

SRM

These SRMs are intended for evaluating and calibrating
specific types of particle size measuring instruments,
including light scattering, electrical zone flow-throughcounters, optical, and scanning electron microscopes,
sedimentation systems, and wire cloth sieving devices.
SRMs 1017b 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 zirconiumoxide particles measured using sedimentation.
SRM 1961 is monodisperse latex particles in a watersuspension produced by the National Aeronautics andSpace Administration (NASA).

Description

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

8012

Gold Nanoparticles,
Nominal 30 nm Diameter2 x 5 mL

8013

Gold Nanoparticles,
Nominal 60 nm Diameter2 x 5 mL

8634

Ethylene Tetrafluoroethylene for Particle Size
Distribution and Morphology

20 mL

8988

Titanium Dioxide Powder Particle Size Distribution

6g

See Table 301.1 on the website for more information.

RMs 8012 and 8013 are gold nanoparticles in water.
SRM

Description

Unit of
Issue

1017b

Glass Beads - Particle Size Distribution(100 µm to 400 µm diameter range)

70 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)

4g

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

5g

Unit ofIssue

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Engineering
Materials

SizingCement 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 114r is for calibrating the Blaine fineness meter
according to the latest issue of ASTM C204, 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 ofIssue

46hPortland Cement Fineness Standard

10 x 5 g

114r

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.

Particle Count Materials(powder and suspension forms)
These SRM and RM materials are intended for use incalibrating 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 8631band 8632 are mineral test dusts of medium, and ultrafine
particle size, and can be used to prepare suspensions inother 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

2806d

Medium Test Dust (MTD) in Hydraulic Fluid

8631b

Medium Test Dust (MTD)

20 g

8632a

Ultra Fine Test Dust (UFTD)

20 g

3 x 400 mL

Electrophoretic Mobility, E(suspension form)
SRM 1980 is intended for use in the calibration andevaluation of equipment used to measure electrophoretic
mobility. It consists of a goethite suspension saturated withphosphate 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 theperformance of instruments used to determine the specificsurface area of powders by the Brunauer, Emmett, and Teller(BET) method or instruments that use mercury intrusion tomeasure the pore size and porosity of porous materials.
The surface areas of SRMs 1898, 1900, 2206, and 2207 arebased on both multi-point and single point analysis of the
BET equation.
SRM

Description

Unit of
Issue

1898

Titanium Dioxide Nanomaterial

1900

Specific Surface Area Standard

4g

1917

Mercury Porosimetry Standard

10 g

2206

Controlled Pore Glass BET Specific Surface Area
(Nominal Pore Diameter 300 nm)

5g

2207

Controlled Pore Glass BET Specific Surface Area
(Nominal Pore Diameter 18 nm)

5g

2696

Silica Fume (powder form)

70 g

See Table 301.4 on the website for more information.

See Table 301.5 on the website for more information.

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15 g

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Standard Reference Materials
for Engineering Materials

Surface Finish

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105

Engineering
Materials

Surface Finish

Microindentation Hardness(block form)

Surface Roughness(block form)

These SRMs are for use in calibrating, and checking theperformance of microhardness testers, and may be used inconjunction 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), andwere made by electroforming the test metal on AISI 1010
steel substrate. SRMs 2830 and 2831 are intended to meetthe 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

Tool Steel for Abrasive Wear Standard

See Table 302.2 on the website for more information.

2073a

Sinusoidal Roughness Specimen

Unit of
Issue
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 calibrationand 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 isa steel test block, nominally 64 mm in diameter and 15
mm thick, having a polished test surface described by amicro-engraved circle 52 mm in diameter. Each SRM unit isindividually certified and bears a unique serial number on
the edge of the block.
SRM

Description

Unit of
Issue

Rockwell C Hardness - Low Range

1 block

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

1 block

Unit of
Issue

Rockwell Hardness 15N Scale - High Range(Nominal 91 HR15N)

2819

Rockwell Hardness 30N Scale - Low Range(Nominal 45 HR30N)

1 block

2 blocks

2820

Rockwell Hardness 30N Scale - Mid Range(Nominal 64 HR30N)

1 block

2821

Rockwell Hardness 30N Scale - High Range(Nominal 79 HR30N)

1 blockThis SRM is for use in the dry sand/rubber wheel abrasion test
per ASTM G 65, Procedure A.

1857

Description

2811

Abrasive Wear
(block form)

Description

SRM

2810

See Table 302.1 on the website for more information.

SRM

These SRMs are for calibrating stylus instruments thatmeasure surface roughness. These electroless-nickel
coated steel blocks have a sinusoidal roughness profile
machined on the top surface.

See Table 302.5 on the website for more information.

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Standard Reference Materials
for Engineering Materials

Fire Research

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107

Engineering
Materials

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
1012

Description
Flooring Radiant Panel

Unit ofIssue
set (3)Standard Cigarettes for Ignition
Strength and Ignition Resistance
Testing
SRM 1082 is intended for use by test laboratories to assess, andcontrol their testing of cigarette ignition in accordance withASTM 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 forresistance to cigarette ignition in accordance with 16 CFR
1632, 16 CFR 1634 (proposed), and 16 CFR 1209.

See Table 305.4 on the website for more information.

SRM

Description

Unit of
Issue

1082

Cigarette Ignition Strength Standard(200 cigarettes)

1 carton

1196aStandard Cigarette for Ignition
Resistance Testing (400 cigarettes)

2 cartons

See Table 305.5 on the website for more information.

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Standard Reference Materials
for Engineering Materials

Nanomaterials

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109

Engineering
Materials

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

8012

Gold Nanoparticles(Nominal 30 nm Diameter)2 x 5 mL

8013

Gold Nanoparticles(Nominal 60 nm Diameter)2 x 5 mL

8017

Polyvinylpyrrolidone Coated Silver
Nanoparticles (Nominal Diameter 75 nm)

5 vials

8027

Silicon Nanoparticles(Nominal Diameter 2 nm)

5 x 1 mL

See Table 308.1 on the website for more information.

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Standard Reference Materials
for Engineering Materials

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

111

Miscellaneous
Performance

Impact Standards: Charpy V-Notch
Specimens
These SRMs are test specimens intended primarily for theverification of Charpy testing machines. The dimensions ofthese SRMs comply with the current ASTM Standard E23
and the current ISO 148-1 Standard.
SRMs 2092, 2096, 2098, 2561, and 2563 are NIST-Verification
Charpy V-notch specimens that have a post-test evaluation
service and proficiency test data available. SRMs 2092 and2096 are to be tested at -40 °C; SRMs 2098, 2561, and 2563
are to be tested at 21 °C. These SRMs should be impact
tested (broken) consecutively in the same time frame(i.e., not on separate days). A completed questionnaireand digital pictures of the broken samples should be thenemailed to NIST Boulder for evaluation. An acceptablemachine will produce an average value within 1.4 J or 5 %of the certified energy value, whichever is greater.
SRMs 2093, 2097, 2099, 2562, and 2564 are Self-Verification
Charpy V-notch specimens that do not have any post-test
services available. These SRMs provide a lower cost option
for a Self-Service indirect verification of a user’s machine
equipped with an 8 mm striker. SRMs 2093 and 2097 areto be tested at -40 °C. SRMs 2099, 2562, and 2564 are to
be tested at 21 °C. These SRMs are not returned to NIST
Boulder for evaluation, and no questionnaire needs to becompleted.
SRMs 2112 and 2113 are NIST-Verification Charpy V-notch
specimens that are certified for absorbed energy at -40°C and 21 °C, and for maximum force at 21 °C. These SRMs
provide a means to verify the performance of both the energy and force scales of an instrumented Charpy impact
machine at 21 °C. They can also be used to verify just theenergy scale of a machine at -40° C, similar to 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 verificationof 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 aset of three KLST-type specimens needed to perform asingle verification.

Engineering
Materials

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

2099

Super-High-Energy Charpy V-Notch
Specimens (Self-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(Self-Verification, 2-mm Striker)

set

2198

High-Energy Charpy V-Notch Specimens(Self-Verification, 2-mm Striker)

set

2199

Super-High-Energy Charpy V-Notch
Specimens (Self-Verification, 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

2237

Miniaturized Low-Energy Charpy V-Notch RHS
Specimens (Self-Verification)

set

2238

Miniaturized High-Energy Charpy V-Notch RHS
Specimens (Self-Verification)

set

2239

Miniaturized Super-High-Energy Charpy
V-Notch RHS Specimens (Self-Verification)

set

2561

Low-Energy Charpy V-Notch Specimens(NIST-Verification, 21° C, 8 mm Striker)

set

2562

Low-Energy Charpy V-Notch Specimens(Self-Verification, 21° C, 8 mm Striker)

set

2563

High-Energy Charpy V-Notch Specimens(NIST-Verification, 21° C, 8 mm Striker)

set

2564

Self-Energy Charpy V-Notch Specimens(NIST-Verification, 21° C, 8 mm Striker)

set

See Table 309.1 on the website for more information.

SRMs 2237, 2238, and 2239 are intended for theverification of absorbed energy values measured at
21° C using a small-scale Charpy impact machine,in accordance with the current ASTM E2248 or ISO
14556 standards. Each SRM unit consists of a set of five
RHS-type specimens needed to perform a single
verification.

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Miscellaneous
Performance

Engineering
Materials

Tape Adhesion Testing(sheet form)

Secondary Ferrite Standards

This SRM is intended as a uniform source of linerboard foruse 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, andD 3889 Standard Method for Adherence to Linerboard ofPressure-Sensitive Tapes at Low Temperature.
SRM
1810a

Description
Linerboard

Unit ofIssue
50 eachSee 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 areintended primarily for use in fundamental studies on thephysical 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 differingfiber 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 ResearchCommittee (PMRC), a subcommittee of the Fundamental
Research Committee. These materials were donated byindustry and are being distributed by the SRM Program.
At this time, no extensive property measurements havebeen 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 theReport of Investigation that accompanies each of thesematerials.
SRM

Description

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 accordancewith American National Standards Institute/American
Welding Society (ANSI/AWS) Standard A4.2, andInternational Organization of Standardization (ISO)Standard 8249. RM 8480 consists of a low range (8specimens distributed in the range of 0 FN to 30 FN), andRM 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 technicallyobsolete and are not longer suitable for their intended
purpose. NIST has more recently developed otherreference 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 offerrite in an austenitic matrix.
SRM

Description

8480

Secondary Ferrite Number
Standard - Low Range

10x12x20

8481

Secondary Ferrite Number
Standard - High Range

set (8)

See Table 309.6 on the website for more information.

Unit of
Issue

8495

Northern Softwood

10 sheets

8496

Eucalyptus Hardwood

10 sheets

Unit of
Issue

See Table 309.5 on the website for more information.

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Miscellaneous
Performance

Engineering
Materials

Fracture Toughness of Ceramics
SRMs 2100a and 2100b Fracture Toughness of Ceramic
are intended for verification of fracture toughness testingprocedures, 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-pressedsilicon 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.

Standard Bullet Replica
and Cartridge Case
SRM

Description

2460aStandard Bullet Replica

each

2461

Standard Cartridge Caseeach

See Table 309.11 on the website for more information.

Force Calibration

SRM

Description

Unit of
Issue

SRM

Description

2100a

Fracture Toughness of Ceramic

5 bars

3461

2100b

Fracture Toughness of Ceramic

5 barsStandard Reference Cantilevers for Atomic
Force Microscopy Spring Constant Calibration

See Table 309.12 on the website for more information.

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 measurementof 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 mm772a

Magnetic Moment Standard - Nickel Sphere

each

2853

Magnetic Moment Standard - Yttrium Iron
Garnet Sphere

each

Unit of
Issue

See Table 309.8 on the website for more information.

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Unit of
Issue
each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
Fax: (301) 948-3730
E-Mail: srminfo@nist.gov
www.nist.gov/srm
Each purchase order should give the numberof units, SRM number, and name of eachreference material requested.
Example:1 unit, SRM 930e Glass Filters forSpectrophotometry
The following information must be included witheach 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., asocial 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®

SRM

NIST Standard Reference Materials®
2024 Catalog
NIST SP 260-176
January 2024

2024 Catalog

Physical
Properties
Nanomaterials
Food &
Agriculture
Radioactivity
Clinical &Industrial Hygiene
Environmental
Forensics

NIST SP 260-176

High Purity
Materials
Industrial
Materials
Engineering
Materials

www.nist.gov
Phone: (301) 975-2200
Email: srminfo@nist.gov