NBS Standard Referenc

publications Materials Catalog 1984-85

n,m-^S^l^\ ^C" Ife. NBS Special Publication 260

U.S. Department of Commerce

National Bureau of Standards

TO ORDER

PHONE (301)921-2045
Information and Staff

Information

Office of Standard Reference Materials

Room B311, Chemistry Building

National Bureau of Standards

Washington, DC 20234

(Telephone 301-921-2045)

Staff

Chief: Stanley D. Rasberry

Deputy Chief: William P. Reed

Administrative Officer:

Margaret E. Guggenheimer

Treva Siedling

Manager, Data Processing:

Lee T. Klein

Manager, Production and Certification

Programs: Thomas E. Gills

Project Managers:

Robert L. Alvarez

Thomas E. Gills

Lee J. Kieffer

William P. Reed

Richard W. Seward

Promotion and Certification Staff: Mary H. Blair

Dolly G. Downs

Lisa J. Cooper

Manager, Marketing and Customer

Services: Richard W. Seward

Marketing and Sales Staff: Sandra L. Barber

Patricia A. Brletic

Claudia A. Engel

Julie M. Frum

Catherine H. Hudson

Ruth H. Meyer

Melody V. Smith

Jocelyn A. Washington

Manager, Preparation of Materials

and Packaging: Paul A. Lundberg

Preparation and Packaging Staff: Dale Friend

John F. Savoy

Frances S. Trice

Helen A. Tyler

Manager, Packing and Shipping:

Steven G. Webber

Packing and Shipping Staff: Roger E. Brown

Carleton C. Fisher

James T. Fort
NATIONAL BUREAU,

OF STANDARDS

LIBRARY NBS Special Publication 260

NBS Standard

Reference Materials

Catalog 1984-85

:

C. H. Hudson, Editor

Office of Standard Reference Materials

National Measurement Laboratory

National Bureau of Standards

Washington, DC 20234

CAUTION: The values given in the following sec- tions are listed primarily as a guide to purchase.

The values shown are nominal and may differ from

those shown on the certificates. Space limitations

have required that some values be omitted. For

these reasons, the certificates issued with the

standards should always be consulted to obtain the

certified values.

#* ° F cn U.S. Department of Commerce

Malcolm Baldrige, Secretary

National Bureau of Standards

Ernest Ambler, Director

Issued February 1984
National Bureau of Standards

Special Publication 260

Supersedes NBS Spec. Publ. 260-1981-83 catalog

Nat. Bur. Stand. (U.S.), Spec. Publ. 260-1984-85

catalog, 180 pages (February 1984)

CODEN: XNBSAV

U.S. GOVERNMENT PRINTING OFFICE

WASHINGTON: 1984

For sale by the Superintendent of Documents,

U.S. Government Printing Office, Washington, DC 20402
Contents

i^mmmmmmmmmmmmmmmmmmmm i i

1 Abstracts and Key Words

2 Introduction

2 Definitions

3 SRM Catalog

3 Preparation and Availability of Standard

Reference Materials

3 Ordering

4 Terms

4 Late Charges

4 Proforma Invoice (Price Quotation)

4 Domestic Shipments

4 Foreign Shipments

5 Documentation

6 Introduction (Spanish)

10 Introduction (French)

14 Introduction (German)

Certified Chemical Composition

19 Standards

19 Steels (Chip Form)

19 Plain Carbon Steels

20 Low Alloy Steels

22 High Alloy Steels

22 Stainless Steels

23 Tool Steels

23 Steels (Granular Form)

24 Steels (Solid Form)

24 Ingot Iron and Low Alloy Steels

26 Special Ingot Irons and Low-Alloy Steels

30 Stainless Steels

30 Group I

31 Group II

3 1 Group III

32 Specialty Steels

33 High-Temperature Alloys

34 Tool Steels

35 Steelmaking Alloys

36 Cast Irons (Chip Form)

38 Cast Steels, White Cast Irons, Ductile

Irons, and Blast

Furnace Irons (Solid Form)

39 Nonferrous Alloys (Chip Form)

39 Aluminum-Base Alloys

39 Copper-Base Alloys

41 Copper "Benchmark"

42 Lead-Base Alloys

42 Magnesium-Base Alloys

42 Nickel-Base Alloys

43 Trace Elements in Nickel-Base Superalloy

43 Nickel Oxide

44 Selenium

44 Tin-Base Alloys

44 Titanium-Base Alloys

45 Zinc-Base Alloys

45 Zirconium-Base Alloys

45 Nonferrous Alloys (Solid Form)

45 Aluminum "Benchmark"

46 Copper-Base Alloys

48 Copper "Benchmark"

49 Lead-Base Alloys

49 Nickel-Base Alloys

50 Titanium-Base Alloys

50 Zinc-Base Alloys

51 Zirconium-Base Alloys

51 Gases in Metals

51 Certified for Hydrogen, Oxygen,

and Nitrogen

52 High-Purity Metals

53 Microanalytical

53 Mineral Glasses for Microanalysis

53 Glasses for Microchemical Analysis

53 Cartridge Brass

53 Fe-Cr-Ni Alloy

iii
54 Tungsten-20% Molybdenum 83 certiiiea r nysicai properties otanaaras

54 Gold-Silver 83 Ion Activity

54 Gold-Copper 83 pH

54 lron-j. 22% Silicon 84 pD

55 Primary, Working, and Secondary 84 Ion-Selective Electrodes

Chemicals 84 Mechanical and Metrology

55 Microchemical O A 84 Scanning Electron Microscope

56 Clinical Laboratory 85 Optical Microscope Linewidth57 Biological Measurement

59 Environmental 85 Coating Ihickness

59 Analyzed Gases 85 Nonmagnetic Coating on Magnetic

61 Permeation Tubes Substrate

61 Suljur Dioxide 86 Magnetic Coating on Magnetic

61 Nitrogen Dioxide Substrate

61 Benzene 87 Magnetic Coating on Non-Magnetic

61 Analyzed Liquids and Solids Substrate

61 Single Element 87 Gold Coating on Glass Sealing Alloy

62 Multi Element 87 Gold Coating on Nickel

64 Organic Constituents 87 Glass

65 Polychlorinated Biphenyls in Oil 87 Chemical Resistance (Durability) or Glass

65 Sultur in Coal 88 Electrical Properties of Glass

66 Industrial Hygiene 88 Glass Viscosity

66 Freeze-Dried Urine 88 Glass Viscosity Fixpoints

66 Materials on Filter Media 89 Relative Stress Optical Coefficient

66 Respirable Quartz 89 Glass Liquidus Temperature

67 Asbestos 89 Llasticity

67 Metallo-Organic Compounds 89 Microhardness

68 Wear JVletals in Uil 90 Density

/CO 68 Fertilizers 90 Molecular Weight

69 Ores 90 Polymer

72 Rocks, Minerals, and Refractories 91

T> 1 1 Rneology

74 Glasses 92 Heat

1 A/4 carDiaes 92 Superconductive Thermometric Fixed

/ J cements Point Devices

If, 1 1 alt ILlclllt II 19 Q7yL 1 ICC/.11IH, JTL/HIl 111

1

i^utitMr ividieridis Cil yZ Dejining Fixed Points-International

111 1 opecidl r\UCiedi ividlcridls Temperature Scale

111

1

riuionium /ibsuy 92 Secondary Reference Points

111 1 rlUlOnlUrTl lSOlupiL 93 Melting Point

is1 o

T J y/~t Hill KH ^ C C/7 1 > uruniuffi /ibbuy 93 Calorimetric

78 Uranium Isotonic 93 Combustion Calorimetric

79 Radiation Dosimetry 93 Solution Calorimetric

80 Fission Track Glass V3 //ea/ Source Calorimetric

80 Stable Isotopic y4 Enthalpy and Heat Capacity

81 Special Nuclear Containers n a Vapor Pressure

y4 Thermal Conductivity

yj Thermal Expansion

95 Thermocouple Materials

95 Magnetic

95 Magnetic Susceptibility

95 Magnetic Moment
96 Paramagnetic Resonance

96 Optical

96 Spectrophotometric

96 Filters for Spectrophotometry and

Luminescence

97 Reflectance

98 Specular Spectral Reflectance

98 Directional-Hemispherical Reflectance

99 Refractive Index

100 Optical Rotation

100 Radioactivity

101 Alpha-Particle, Beta-Particle, Gamma-ray,

and Electron-Capture Solution

102 Alpha-Particle Point-Source

102 Radiocarbon Dating and Ground Water

Studies

102 Contemporary Standard for Carbon-14 Dating

Laboratories

102 Low-Level Tritiated-Water

103 Gaseous Radioactivity

103 Gamma-ray and X-ray Point-Source

104 Low-Energy-Photon Point-Source

104 Radium-226 Solution

104 Radon Analysis

104 Gamma-Ray Solution

105 Environmental Natural Matrix Standards

for Traceability Tests

105 Radiopharmaceutical

106 Special Nuclear Material Packaging

106 Catalyst Package for Lubricant Oxidation

106 Metallurgical

106 Mbssbauer

107 Abrasive Wear

107 Pitting or Crevice Corrosion

107 X-ray Fluorescent Emission Target

107 X-ray Diffraction

108 Gas Transmission

108 Reference Fuel

108 Electrical Resistivity and Conductivity

108 Metals

108 Silicon

109 Glass

109 Residual Resistivity Ratio

109 Conductivity

109 Nondestructive Evaluation

1 1 1 Engineering Type Standards,

Research Materials, and Special

Reference Materials

1 1 1 Standard Rubbers and RubberCompounding Materials

112 Reference Magnetic Tapes

112 Centerline Drawings for Optical

Character Recognition-B Characters

113 Sizing

113 Particle Size

113 Cement Turbidimetric and Fineness

114 Color

114 Light-Sensitive Papers and Plastic Chips

114 Light-Sensitive Papers

114 Light-Sensitive Plastic Chips

115 X-ray and Photographic

115 Surface Flammability

115 Smoke Density Chamber

116 Tape Adhesion Testing

116 Research Materials

118 Special Reference Materials

118 Differential Thermal Analysis

119 Melting Point

119 Specific Surface Area of Powders

121 Additional Information

121 Other Services of the National Bureau

of Standards

121 Calibration and Related Measurement

Services

121 Washington Services

122 Boulder Services

123 Office of Weights and Measures

123 Proficiency Sample Programs

124 Structural Engineeering—High Capacity

Testing Machine

124 Accreditation of Testing Laboratories

125 National Center for Standards and

Certification Information

125 National Standard Reference Data System

126 Guide for Requesting Development of

Standard Reference Materials

127 Certified Reference Materials from

Other Sources

130 Other NBS Publications in the 260 Series

135 Indexes

135 Category Index of Standards

151 Alphabetical Index by Standard

Reference Material Name

165 Numerical Index to Standard Reference

Material Certificates

v

Abstracts and Key Words

National Bureau of Standards

Catalog of Standard Reference Materials— 1 984-85

This Catalog lists those Standard Reference Materials (SRM's) that are available from the National Bureau of

Standards (NBS), and those that are soon to be available. The Catalog describes these materials as to their

certified characterization, unit size, and type, as well as providing ordering information. Prices for these

materials are listed separately in annual supplements to this Catalog.

Key words: accuracy; analysis; calibration; characterization; composition; materials; measurement; properties;

Standard Reference Materials.

National Bureau of Standards

fOficina National de Pesas y Medidas]

Catalog© de Materiales Tipo de Referenda— 1984-85

Este Catalogo enumera los Materiales Tipo de Referencia (SRM) que se pueden obtener de la National

Bureau of Standards (NBS), y los que pronto estaran disponibles. El Catalogo describe estos materiales de

acuerdo con su caracterizacion certificada, tamano de la unidad, y tipo, y tambien provee informacion sobre

pedidos. Los precios de estos materiales aparecen separadamente en suplementos anuales de este Catalogo.

Palabras claves: precision; calibracion; caracterizacion; composicion; materiales; medida; propiedades;

Materiales Tipo de Referencia.

Bureau National des Normes (National Bureau of Standards)

Catalogue des Materiels de Reference Standard 1984-85

Ce catalogue donne la liste des Materiels de Reference Standard (Standard Reference Materials—SRM) que

Ton peut obtenir du Bureau National de Normes (NBS), et de ceux qui seront bientot disponibles. Le

catalogue donne une description de ces materiels concernant leur caracterisation certifiee, la taille et le type

de chaque unite, ainsi que les instructions pour rediger la commande. Une liste de prix de ces materiels est donnee separement chaque annee dans des supplements au catalogue.

Mots-cles: precision; analyse; calibrage; caracterisation; composition; materiels; mesure; proprietes; Materiels

de Reference Standard.

National Bureau of Standards

Normenprobenverzeichnis 1984-85

Dieses Verzeichnis enthaelt sowohl diejenigen Normenproben, die zur Zeit vom National Bureau of

Standards (NBS) erhaeltlich sind, als auch solche, die in Baelde verfuegbar sein werden. Das Verzeichnis

enthaelt ferner eine Beschreibung der Proben nach Art der geprueften Kennzeichnung, nach Einheitsgroesse

und Typus, sowie Angaben ueber den Bestellvorgang. Eine Preisliste erscheint alljaehrlich als Nachtrag zu diesem Verzeichnis.

Stichworter: Genauigkeit; Analyse; Kalibrierung; Kennzeichnung; Zusammensetzung; Materialien; Messung;

Eigenschaften; Normenproben.

1
Introduction

HHHHHHMfl^HBH^^BflHHBEBHHHHH^HiHH!

Bhe National Bureau of Standards issues over 1000 different materials through its Standard Reference

Materials Program. These materials are primarily Standard Reference Materials (SRM's) certified for their

chemical composition, chemical property, or physical property, but also include Research Materials (RM's)

and Special Reference Materials (GM's). All SRM's, RM's, and GM's bear distinguishing names and numbers

by which they are permanently identified. Thus, each SRM, RM, or GM bearing a given description is identical (within the required or intended limits) to every other sample bearing the same designation—with

the exception of individually certified items, which are further identified by serial number.

The first materials issued by NBS were called Standard Samples and consisted of a group of ores,

irons, and steels certified for their chemical composition. Since the mid-1960's these materials have been

issued as Standard Reference Materials, and cover a wide range of chemical and physical properties and an

equally wide range of measurement interests.

Definitions

The different terms, SRM, RM, or GM, are used to indicate differences in the types of information supplied

and in the purposes for which the material is intended. (The terms RM and GM are no longer being used as prefixes for these materials; the numbers 8000 through 9999 are reserved for RM's and GM's.)

Standard Reference Materials have been characterized by the National Bureau of Standards for some

chemical or physical property and are issued with a Certificate that gives the results of the characterization.

These results are obtained by one of the three established routes of certification, i.e., measurement of the

property using: (1) a previously validated reference method, (2) two or more independent, reliable

measurement methods, or (3) a network of cooperating laboratories, technically competent and thoroughly

knowledgeable with the material being tested. These routes are described in detail in, "The Role of Standard

Reference Materials in Measurement Systems," NBS Monograph 148, 54 pages (Jan. 1975). SRM's are defined as being well-characterized and certified materials produced in quantity to improve measurement

science. They are prepared and used for three main purposes: (1) to help develop accurate methods of

analysis (reference methods); (2) to calibrate measurement systems used to: (a) facilitate the exchange of

goods, (b) institute quality control, (c) determine performance characteristics, or (d) measure some property

at the limit of the state-of-the-art; (3) to assure the long-term adequacy and integrity of quality control

processes. In these ways, SRM's help ensure the compatibility and accuracy of measurements in many facets

of national life —from science and technology to trade and commerce.

Research Materials, unlike SRM's, are not certified. Instead of a Certificate, RM's are issued with a "Report

of Investigation," the sole authority of which is the NBS staff member who authored the report. An RM is intended primarily to further scientific or technical research on that particular material. The principal

consideration in issuing an RM is to provide a homogeneous material so that investigators in different

laboratories are assured that they are investigating the same material.

Special Reference Materials differ from both SRM's and RM's in that NBS does not participate in the

characterization of these materials. GM's are reference materials produced and certified or guaranteed by

2
other government agencies, standards bodies, or other non-profit organizations. When deemed to be in the

public interest and when alternate methods of national distribution do not exist, NBS acts as the distributor

for such materials. This service is available to all organizations that qualify and have reference materials that

would help solve a national measurement problem.

SRM Catalog

New Catalogs of NBS Standard Reference Materials are published approximately every three years, listing

new materials available, materials in preparation, and deleting discontinued materials. To keep the Catalog

current between editions, annual supplements are published that list the current prices charged, and any new

materials issued.

The materials listed in this Catalog are separated into several major groups: Chemical Composition

Standards, Physical Property Standards, Engineering Type Standards, Research Materials, and Special

Reference Materials. The first three groups include SRM's only and are subdivided into the categories shown

in the Table of Contents.

The numerical values given in the Catalog to describe the materials' properties are nominal values

only and are to be used only as guides in selecting the materials. They are not to be used in lieu of the

Certificate issued with the materials.

Note: Some SRM's are not issued with Certificates. These exceptions are noted in both the SRM

description and the numerical index.

The numerical index provides the SRM, RM, and GM numbers of all materials listed in the Catalog,

together with either the date of the current Certificate or a note to explain the absence of a Certificate.

An index by category provides a generic listing of the SRM and the primary constituent or element in an SRM.

An alphabetical index is also provided listing the specific name of the SRM as indicated on the

Certificate of Analysis.

Preparation and Availability of Standard

Reference AAaterials

New and renewal SRM's are being prepared continually. Prospective users are notified directly of the

availability of these new items, and the SRM's are described in the next edition of the catalog. To place your

name on the mail list maintained by NBS to notify customers of new materials, please contact the Office of

Standard Reference Materials at the address listed for placing orders.

In preparing revewal SRM's, the intention is to complete the renewal before the supply of the existing

SRM is exhausted. Frequently, this is not possible and the SRM will be out-of-stock for a time. When this

occurs, those ordering the material are so notified and, when feasible, possible substitutes are suggested.

When the renewal becomes available, customers who have requested either the previous lot or the renewal

are promptly notified.

Renewal SRM's will not usually be identical to their predecessors, but will be quite similar especially

with regard to the characteristics certified. Generally, the renewal can be used in place of its predecessor. As

an example, when the first 0.1 percent carbon Bessemer steel was prepared in 1909, it was called Standard

Sample No. 8. During the following years, a number of renewals, 8a, 8b, etc., were prepared. The current

SRM 8j, Bessemer Steel (simulated), 0.1% Carbon, represents the tenth renewal batch of this material. While

each of these batches differs somewhat in detailed analysis, all have had the relatively high level of

phosphorus, sulfur, and nitrogen, and low alloy metal content characteristic of this type of material.

It is not possible to supply preceding numbers of the renewal series when the stock is exhausted. If

little demand exists or an alternate source of supply becomes available for a material, production may be

discontinued permanently.

Ordering

Orders should be addressed to: Office of Standard Reference Materials

Room B311, Chemistry Building

National Bureau of Standards

Washington, DC 20234

Telephone: (301) 921-2045

Orders should give number of units, catalog number, and name of the material requested. For example: 1 each,

3
No. 1 lh, Basic-Open-Hearth Steel, 0.2 percent C. The materials described in this Catalog are distributed

only in the units listed or in multiples thereof.

Acceptance of an order does not imply acceptance of any provision set forth in the order contrary to the policy, practice, or regulations of the National Bureau of Standards or the U.S. Government.

Orders received for "out-of-stock" materials are cancelled if only out-of-stock items are ordered. On

other orders, shipment is made of available materials and out-of-stock items are cancelled. Back-orders are not

accepted for out-of-stock materials; if a renewal lot of material is available, it will be furnished automatically.

Terms

Prices quoted are in U.S. dollars, and are published in the SRM Price List. When SRM Price Lists are issued

they are sent to persons or organizations who have requested them. These prices are subject to revision

without notice and orders will be billed for the prices in effect at the time of shipment. No discounts are given on purchases of SRM's, RM's, or GM's.

Remittances of the purchase price need not accompany purchase orders. Payment of invoices is expected within 30 days of receipt of an invoice. Payment on foreign orders may be made by any of the

following:

a. banker's draft against U.S.A. bank

b. bank to bank transfer to U.S.A. bank

c. cash against documents

d. sight draft

e. International Money Order

f. UNESCO coupons

Letters of Credit cannot be accepted. If a Letter of Credit or any method of payment other then those listed

above is to be used, you must secure the services of an agent in the United States to act in your behalf. Your

agent would purchase the material and our invoice would indicate that he is the purchaser. The material

would be shipped to your agent, who would transship in accordance with your instructions.

NBS cannot "prepay and add" shipping charges to the invoice. Restricted categories such as hydrocarbons, organic sulfur compounds, compressed gasses, rubber compounding materials, radioactive

standards, and similar materials are shipped FOB Gaithersburg, MD.

Unless otherwise notified, payment for SRM's is due within 30 days of shipment of the order to the customer.

For non-Federal customers, the U.S. Treasury regulations require late charges, based on the current value of

funds to Treasury, be assessed for each 30-day period or portion thereof that the payment is overdue.

Proforma Invoice (Price Quotation)

Proforma invoice service will frequently require three to four weeks to process, and will be furnished only to

those requiring such service.

Domestic Shipments

Shipments of material (except for certain restricted categories) intended for the United States and Canada are normally shipped prepaid (providing that the parcel does not exceed the weight limitations as prescribed by

postal laws and regulations).

Foreign Shipments

The regulations of various nations covering the importation of SRM's, GM's, and RM's differ widely; any

attempt to list all possible variations would be impractical. Therefore, where the shipping practices outlined

below do not apply, purchasers will be informed of the best method of shipment for their countries.

Most orders will be shipped by prepaid International Air Parcel Post. Exceptions are items in

restricted categories and those shipments that exceed parcel post weight limitations. These exceptions will be

shipped FOB Gaithersburg, MD, unless an agent (shipping or brokerage firm) located in the United States is

4
required. Where an agent is required, the purchaser will be so notified and will be requested to designate an

agent of his/her choice. In this case, the material will be packaged for overseas shipment and will be

forwarded to the agent FOB Gaithersburg, MD.

Documentation

Listed below are the only documents that we will furnish. All documents are printed in English.

a. six commercial invoices

b. two sight drafts

c. two packing slips

d. customs invoices for Canada, New Zealand, Australia, and South Africa

e. Certificate of Origin

f. parcel post receipts for parcel post shipments

g. air waybill for air shipments

If documents other than those listed above are required, the services of an agent in the United States will be

needed to purchase and ship the materials.

Note: Orders and inquiries submitted in English will be processed more rapidly than those requiring

translations.

5
Introduction «

i^^ffljfila NBS emite mas de 1,000 materiales diferentes por medio de su Programa de Materiales Tipo de

Referencia. Estos materiales son principalmente Materiales Tipo de Referencia (SRM) que han sido

certificados por su composicion quimica, propiedades quimicas, o propriedades fisicas, pero tambien incluyen

Materiales de Investigacion (RM) y Materiales de Referencia Especial (GM). Todos los SRM, RM y GM

tienen nombres y niimeros distintivos por los cuales son identificados permanentemente asi que cada SRM,

RM o GM con una descripcion dada es identico (dentro de los limites requeridos o proyectados) a cada

muestra que tenga la misca designacion—con la excepcion de articulos individualmente certificados, que

ademas son identificados por un numero de serie.

Los primeros materiales emitidos por la NBS se llamaban Muestras Tipo y consistian de un grupo de

minerales, hierros y aceros certificados por su composicion quimica. Desde mediados de la decada del 1960 se han distribuido estos materiales como Materiales Tipo de Referencia, y cubren una gran extension de

propiedades quimicas y fisicas e igualmente gran extension de intereses en medicion.

Definiciones

Los diferentes terminos, SRM, RM o GM, se usan para indicar diferencias en el tipo de informacion

suministrada y en los propositos a los cuales el material esta destinado. (Ya no se usan los terminos RM y GM

como prefijos para esos materiales; los numeros desde 8000 hasta 9999 estan reservados para RM y GM.)

Los Materiales Tipo de Referencia han sido caracterizados por la NBS por alguna propiedad quimica o fisica

y son distribuidos con un Certificado que contiene los resultados de la caracterizacion. Estos resultados se obtienen mediante uno de los tres metodos de certificacion establecidos, es decir, medicion de la propiedad

por medio de: (1) un metodo de referencia previamente validado, (2) dos o mas metodos independientes y

fidedignos de medicion, o (3) una red de laboratories cooperatives que sean tecnicamente competente y de

completo conocimiento sobre el material que se esta probando. Estos metodos se describen en detalle en "The

Role of Standard Reference Materials in Measurement Systems" [El Papel de Materiales Tipo de Referencia en Sistemas de Medicion], Monografia 148 de la NBS, 54 paginas (enero de 1975). Se definen los SRM como

materiales bien caracterizados y certificados que se producen en cantidad para mejorar la ciencia de

metrologia. Se preparan y usan para tres propositos principales: (1) para ayudar a desarrollar metodos

precisos de analisis (metodos de referencia); (2) para calibrar sistemas de medicion que se usan para

(a) facilitar el intercambio de mercancias, (b) establecer control de la calidad, (c) determinar caracteristicas

de funcionamiento, o (d) medir alguna propiedad con las tecnicas mas avanzadas; (3) para asegurar que los

procesos de control de calidad se mantengan adecuados e integros por un largo periodo. De esta forma, los

SRM ayudan a asegurar la compatibilidad y exactitud de medidas en muchos aspectos de la vida nacional

desde ciencia y tecnologia hasta comercio.

Los Materiales de Investigacion (Research Materials), a diferencia de los SRM, no se certifican. En vez de un

certificado, los RM se emiten con un "Informe de Investigacion," del cual la unica autoridad es el miembro

de NBS que escribio el informe. El proposito principal de un RM es fomentar la investigacion cientifica o

6
tecnica sobre ese material en particular. La principal consideracion en la emision de un RM es de proveer un

material homogeneo de manera que los investigadores en diferentes laboratorios tengan seguridad de que

estan investigando el mismo material.

Los Materiales Especiales de Referencia difieren tanto de los SRM como de los RM en que NBS no participa en la caracterizacion de esos materiales. Los GM son materiales de referencia producidos y certificados o

garantizados por otras agencias gubernamentales, organismos de normalizacion, u otras organizaciones con

fines lucrativos. Cuando ello se considera en el interes publico y cuando no existen metodos alternatives de

distribucion nacional, la NBS actiia como distribuidora de tales materiales. Este servicio esta a disposicion de

todas las organizaciones calificadas que tienen materiales de referencia que ayudarian a resolver un problema

nacional de medicion.

Catalog©... die SRM

Nuevos catalogos de Materiales de Referencia Regular de la NBS son publicados aproximadamente cada 3

anos, enumerando nuevos materiales disponibles, materiales en preparacion, y omitiendo materiales

descontinuados. Para mantener el catalogo al dia entre ediciones, se publican suplementos anuales que dan los . precios actiializados asi como todo material nuevo. Los materiales enumerados en este catalogo estan divididos en varias categorias: Patrones de

Composicion Quimica, Patrones de Propiedad Fisica, Patrones de Ingenieria. Materiales de Investigacion, y

Materiales Especiales de Referencia. Los primeros tres grupos incluyen unicamente los SRM y estan

subdivididos en las categorias indicadas en el Indice.

Los valores numericos que se dan en el Catalogo para describir las propiedades de los materiales son unicamente valores nominales y deben usarse solamente como guias para seleccionar los materiales. Ellos no

se deben emplear en lugar del valor certificado emitido con el material.

Nota: Algunos SRM no se distribuyen con certificados. Estas excepciones se notan tanto en la descripcion del SRM como en el indice numerico.

El indice numerico proporciona los numeros de los SRM, RM y GM para todos los materiales

enumerados en el catalogo, conjuntamente con la fecha del certificado actual o una nota explicando la ausencia de un certificado.

Un indice por categoria proporciona una lista generica del SRM y el principal constituyente o elemento en un SRM.

Tambien se proporciona un indice alfabetico dando el nombre especifico del SRM indicado en el Certificado de Analisis.

Preparacion y Disponibilidad de Materiales Tipo

de Referencia

SRM nuevos y renovados se preparan continuamente. A los usuarios potenciales se les notifica directamente

de la disponibilidad de estos nuevos articulos, y los SRM se describen en la edicion siguiente del catalogo.

Para incluir su nombre en la lista que la NBS mantiene para notificar clientes sobre materiales nuevos, por

favor escriba a la Oficina de Materiales Tipo de Referencia, a la direccion indicada para pedidos.

Al prepararse SRM renovados, la intencion es completar el reemplazo antes de agotarse los SRM

existentes. Frecuentemente esto no es posible y el SRM no sera disponsible por algiin tiempo. Cuando esto

sucede, los que piden el material seran notificados y, cuando posible, substitutos seran sugeridos. Cuando la nueva partida este disponible, los clientes que hayan pedido la partida anterior, o su reemplazo, seran

notificados inmediatamente.

Los SRM renovados usualmente no son identicos a sus antecesores, pero seran muy similares,

especialmente en cuanto a las caracteristicas certificadas. Generalmente la neuva partida puede usarse en

lugar de su antecesor. Por ejemplo, cuando el primer acero Bessemer de 0.1 por ciento de carbon se preparo

en el 1909, se le llamo Muestra Regular Num. 8. Durante los anos subsiguientes se preparo una serie de

renovaciones, 8a, 8b, etc. El actual SRM 8j, Acero Bessemer (Simulado), 0.1 por ciento de carbon, representa

la decima partida de renovacion de este material. Aunque cada una de estas partidas difiere en algo en el
analisis detallado, todas han mantenido el nivel relativamente alto de fosforo, azufre y nitrogeno, y bajo

contenido de aleacion de metal que son caracteristicos de este tipo de material.

No es posible suministrar numeros anteriores de una serie de renovaciones cuando la existencia se ha

terminado. La produccion puede ser descontinuada permanentemente si existe poca demanda o si se produjo una fuente alternativa de suministro de un material.

Informacidn Sobre Pedidos

Los pedidos se deben enviar a: Office of Standard Reference Materials

Room B311, Chemistry Building

National Bureau of Standards

Washington, DC 20234

Telefono: (301) 921-2045

Los pedidos deben indicar cantidad de unidades, numero de catalogo, y nombre del material pedido. Por

ejemplo: 1, Num. llh, Basic-Open-Hearth-Steel 0.2 Por Ciento de C. Los materiales descritos en este Catalogo se distribuyen solamente en las unidades enumeradas o en sus multiples.

La aceptacion de un pedido no significa aceptacion de disposicion alguna incluida en el pedido que sea contraria a las disposiciones, practicas o reglamentos del National Bureau of Standards o del Gobierno de los

Estados Unidos.

Pedidos de materiales que estan agotados se cancelaran si solamente se han pedido articulos que estan

fuera de existencia. En respuesta a otros pedidos, los materiales disponibles se enviaran y los articulos fuera

de existencia se cancelaran. No se aceptan pedidos de materiales agotados; si una emision nueva del material

esta disponible, se le proporcionara automaticamente.

Los precios citados son en dolares de los Estados Unidos, y son los publicados en la Lista de Precios de

SRM. Cuando las Listas de Precios de SRM se publican, estas se envian a usuarios que han hecho compra

durante los 12 meses ateriores y a personas u organizaciones que las han solicitado. Estos precios estan sujetos a cambios sin notificacion previa y los pedidos se facturaran de acuerdo con los precios en efecto al momento

del envio. No se hacen descuentos en las compras de los SRM, RM o GM.

No se requiere pago por el precio de compra acompahando el pedido. Se espera el pago de la factura

dentro de 30 dias del recibo de la factura. El pago por pedidos del exterior se puede hacer en una de las

siguientes formas:

a. giro bancario contra un banco de los Estados Unidos.

b. transferencia de banco a banco a un banco de los Estados Unidos.

c. al contado en cambio de documentos.

d. giro a la vista.

e. giro internacional.

f. cupones de la UNESCO.

No se pueden aceptar Cartas de Credito. Para usar una Carta de Credito o cualquier metodo de pago que no

este enumerado arriba, debe obtenerse los servicios de un agente en los Estados Unidos para que actue en el nombre del comprador. Su agente compraria el material y nuestra factura indicaria que el es el comprador. El

material se enviaria a su agente, quien so lo enviaria a usted de acuerdo con sus instrucciones.

NBS no puede pagar por adelantado cargos de embarque y ahadirlos a la factura. Categorias

restringidas como hidrocarburos, compuestos de azufre organico, gases comprimidos, materiales de mezcla

para caucho, patrones radioactivos, y materiales similares se envian franco a bordo (F.O.B.) Gaithersburg,

MD.

A menos que se estipule lo contrario, el pago por los SRM vence dentro de los 30 dias del envio del pedido al cliente. Para clientes no federates, los reglamentos del Departamento del Tesoro de los Estados Unidos
requieren que cargos por demora, basados en el valor actual de fondos al Tesoro, se hagan por cada periodo

de 30 dias o porcion de tal periodo que el pago este atrasado.

Factura Fro Forma

El servicio de factura pro forma frecuentemente requerira de 3 a 4 semanas para procesarse, y se proporcionara solamente a aquellos que lo soliciten.

Envios Infernos

El envio de material (excepto ciertas categorias restringidas) destinado para los Estados Unidos y el Canada

normalmente se hace con pago anticipado (siempre y cuando el paquete no exceda las limitaciones de peso

prescritas por las leyes y reglamentos postales).

Envios al Exterior

Los reglamentos de diferentes naciones acerca de la importacion de SRM, GM y RM varian mucho; y seria

impractico tratar de enumerar todas las variaciones posibles. Por tanto, cuando las practicas de embarque que

aparecen a continuacion no apliquen, se informara a los compradores del mejor metodo de embarque a sus

paises.

La mayoria de los pedidos se enviara por Servicio Aereo Internacional de Paquetes Postales con pago

adelantado. Las excepciones son articulos en categorias restringidas y aquellos embarques que excedan las limitaciones de peso de paquetes postales. Estas exceptiones se enviaran F.O.B. Gaithersburg, MD, a menos

que se requiera un agente (compania naviera o de corretaje) localizado en los Estados Unidos. Cuando se requiere un agente, se notificara al comprador y se le pedira que nombre un agente de us eleccion. En tal caso, el material sera embalado para embarque a ultramar y sera enviado al agente F.O.B. Gaithersburg, MD.

Documentacion

A continuacion se enumeran los linicos documentos que se proporcionaran. Todos los documentos se publican en ingles.

a. seis facturas comerciales

b. dos giros a la vista

c. dos hojas de embalaje

d. facturas de aduana para el Canada, Nueva Zelandia, Australia y Africa del Sur

e. Certificado de Origen

f. recibos de paquetes postales, para envios de paquetes postales

g. hoja de ruta aerea para envios aereos

Si se requieren otros documentos ademas de los enumerados arriba, se necesitaran los servicios de un agente en los Estados Unidos para comprar y enviar los materiales.

Nota: Los pedidos y preguntas que se envien en ingles seran atendidos mas rapidamente que aquellos que

requieran traduccion.

9
Introduction

LmBSBMme Bureau of National des Normes emet plus de 1000 materiels differents au moyen de son Programme de

Materiels de Reference Standard. Ces materiels sont essentiellement des Materiels de Reference Standard

(SRM) porteurs d'un certificat garantissant leur composition chimique, leur propriete chimique, ou leur

propriete physique. Cependant, ils incluent aussi des Materiels de Recherche (Research Materials—RM), et des Materiels de Reference Speciaux (Special Reference Materials—GM). A tous les SRM, RM et GM sont

assignes des noms et des numeros distinctifs grace auxquels ils sont identifies de facon permanente. Par

consequent, chaque SRM, RM ou GM porteur d'une description donnee est identique (dans les limites

imposees ou voulues) a tout autre echantillon designe de la raeme facon—a Pexception des articles certifies

separement, qui sont en plus identifies par un numero de serie.

Les premiers materiels que le NBS ait sortis s'appelaient Echantillons Standard (Standard Samples). II

s'agissait d'un groupe de minerais, de fers et d'aciers porteurs d'un certificat garantissant leur composition

chimique. Depuis les annees 1960, ces materiels sortent sous l'appellation "Materiels de Reference Standard",

et couvrent un large eventail de proprietes chimiques et physiques, de meme qu'un eventail tout aussi large

d'interets de mesures.

Definitions

Les differents termes de SRM, RM et GM, sont utilises pour indiquer des differences dans le type de

renseignements donnes, ainsi que dans l'usage auquel Particle est destine. (Les termes RM et GM ne sont plus

utilises commme prefixes pour ces articles; les numeros 8000 a 9000 leur sont reserves.)

Les Materiels de Reference Standard ont ete caracterises par le Bureau National de Normes comme ayant une

propriete chimique ou physique particuliere, et sont emis avec un certificat qui donne les resultats de leur

caracterisation. Ces resultats sont obtenus par l'un des trois moyens conventionnels utilises pour delivrer un

certificat. II s'agit de mesurer la propriete en utilisant: (1) une methode a reference prealablement validee,

(2) au moins deux methodes de mesure qui soient independantes Pune de Pautre et fables, ou bien (3) un

reseau de laboratories travaillant en cooperation, qui soient techniquement competents et qui connaissent

parfaitement le materiel analyse. Ces moyens sont decrits en detail dans "Le Role des Materiels de Reference

Standard dans les Systemes de Mesures" (The Role of Standard Reference Materials in Measurement

Systems), Monographic 148 du NBS (NBS Monograph 148), 54 pages (edition de janvier 1975). Les SRM

sont definis comme des materiels bien caracterises et certifies, qui sont produits en nombre pour perfectionner

la science des mesures. Ils sont prepares et utilises a trois fins principales: (1) pour aider au developpement

de methodes exactes d'analyse (methodes de reference); (2) pour calibrer les systemes de mesures utilises

pour: (a) faciliter Pechange de marchandises, (b) instituer le controle de qualite, (c) determiner les caracteristiques de fonctionnement du materiel, ou bien (d) mesurer une propriete particuliere dans la limite

des connaissances scientifiques, et (3) pour assurer la congruite et Pexactitude a long terme des procedes de

controle de qualite. De cette maniere, les SRM aident a assurer la compatibilite et la precision des mesures

dans bien des aspects de la vie nationale—de la science et la technologie aux echanges et au commerce.

Les Materiels de Recherche, a Pinverse des SRM, ne sont pas certifies. Les RM sont emis avec, a la place

d'un certificat, un "Rapport d'investigation", accorde par la seule autorite du membre du personnel du NBS

qui a produit le rapport. Un RM a pour but essential de faire avancer les recherches scientifiques ou

10
techniques sur ce materiel particulier. La premiere des considerations lors de la sortie d'un RM est de fournir un materiel homogene, afin que les chercheurs de divers laboratoires aient l'assurance d'etudier le meme

materiel.

Les Materiels de Reference Speciaux different des SRM et des RM en ce que le NBS ne participe pas a la caracterisation de ces materiaux. Les GM sont des materiels de reference emis et certifies, ou bien garantis,

par d'autres agences gouvernementales, par des jurys de norme, ou par d'autres organismes a but non lucratif.

Quand il est estime qu'il s'agit d'interet public et qu'il n'existe pas d'autres moyens de distribution nationale,

c'est au NBS que revient le role de distribuer de tels materiels. Ce service est a la disposition de tous les organismes qui sont qualifies et qui possedent des materiels de reference pouvant aider a resoudre un probleme national de mesure.

De nouveaux catalogues des Materiels de Reference Standard du NBS sont publies environ tous les trois ans. Ces catalogues donnent la liste des nouveaux materiels disponibles, des materiels en preparation, et en omettent les materiels discontinues. Pour garder le catalogue a jour entre deux editions, des supplements

annuels sont publies, quit donnent la liste des prix en cours et de tous les materiels nouveaux. Les materiels repertories dans ce catalogue sont classes en plusieurs groupes principaux: les etalons de

composition chimique, les etalons de propriete physique, les materiels de recherche, et les materiels de

reference speciaux. Les trois premiers groupes ne comprennent que des SRM et sont subdivises en categories

indiquees dans la table des matieres.

Les valeurs numeriques donnees dans le catalogue pour decrire les proprietes des materiels ne sont la qu'a titre indicatif et ne doivent etre utilisees que comme guide pour choisir les materiels. Elles ne doivent pas

etre employees a la place du certificat fourni avec le materiel.

Remarque: certains SRM sont emis sans certificat. Ces exceptions sont indiquees a la fois dans la description du SRM et dans l'index numerique.

L'index numerique donne les numeros SRM, RM et GM de tous les materiels repertories dans le catalogue, ainsi que la date du certificat actuel, ou bien une note pour expliquer l'absence du certificat.

Un index par categorie donne une liste generique des SRM et de leur principal composant ou element.

Un index alphabetique est egalement fourni. II donne le nom exact du SRM tel qu'il est indique sur son

certificat d'analyse. Les RM et GM sont repertories en tant que groupes uniquement.

Preparation et Disponibilite des Materiels de

Reference Standard

Les nouveaux SRM et ceux qui sont renouveles sont prepares continuellement. Les eventuels clients sont mis

directement au courant de la disponibilite de ces articles nouveaux, et les SRM sont decrits dans l'edition

suivante du catalogue. Si vous desirez avoir votre nom sur la liste d'adresses que le NBS garde afin de

prevenir les clients de la production de materiels nouveaux, veuillez contacter le Bureau des Materiels de

Reference Standard (Office of Standard Reference Materials) a l'adresse indiquee pour les commandes.

Lorsque Ton prepare des SRM renouveles, c'est avec l'intention de terminer le renouvellement avant

que le stock actuel de SRM no soit epuise. Tres souvent, ceci n'est pas possible et les SRM ne sont alors pas

disponibles pour quelque temps. Lorsque c'est le cas, les personnes ayant passe commande de ce materiel sont

prevenues de la situation et, quand c'est possible, on leur propose d'eventuels substituts. Lorsque le stock

renouvele est disponible, les clients ayant demande soit le lot precedent, soit le nouveau, en sont rapidement

prevenus.

Les SRM renouveles ne sont generalement pas identiques a ceux qu'ils remplacent, mais y sont tout a

fait semblables, surtout en ce qui concerne leurs caracteristiques certifiees. En principe, le SRM renouvele

peut etre utilise a la place de son precedent. Par example, quant, en 1909, le premier acier Bessemer a teneur en charbon de 0.1% a ete prepare, on l'a appele Echantillon Standard No. 8. Les annees suivantes, plusieurs

materiels de remplacement, 8a, 8b, etc., ont ete prepares. L'actual SRM 8j, l'acier (simule) Bessemer a teneur en charbon de 0.1%, represente le dixieme lot de renouvellement de ce materiel. Alors que ces lots different

11
quelque peu les uns des autres dans les details de leur composition, tous possedent un niveau relativement

eleve de phosphore, de soufre et de nitrogene, et un faible niveau de metaux allies, ce qui est caracteristique

de ce genre de materiel.

II n'est pas possible de fournir des numeros anterieurs a un lot renouvele lorsque leur stock est epuise.

Si l'article est peu demande, ou qu'une autre source d'approvisionnement devient disponible pour un materiel

donne, la production de celui-ci peut etre arretee definitivement.

Les commandes

Toute commande doit etre envoyee a l'adresse suivante:

Office of Standard Reference Materials

Room B311, Chemistry Building

National Bureau of Standards

Washington, DC 20234

Tel. (301) 921-2045

Les commandes doivent preciser le nombre d'unites desirees, le numero de reference, et le nom du materiel

demande. Par exemple: 1 unite (1 each), No. llh, acier basique de four a sole (Basic-Open-Hearth-Steel), 0.2

pour cent de C. (0.2 percent C). Les materiels decrits dans ce catalogue sont uniquement livres en nombre

entier d'unites indiquees.

L'acceptation d'une commande n'implique pas l'acceptation de toute disposition inclue dans celle-ci et contraire aux normes, aux usages ou aux reglements du Bureau National des Normes ou du gouvernement

americain.

Les commandes regues pour les materiels epuises sont annulees si tous les articles commandes sont des

articles epuises. Pour les autres commandes, les materiels disponibles sont expedies, et les articles epuises sont

annules. Les commandes renouvelees ne sont pas acceptees pour les materiels epuises; si un lot renouvele du

materiel est disponible, il est automatiquement envoye.

am ma „ m a iviocies oe p<neirient

Les prix sont donnes en dollars U.S., et sont publies sur la liste des prix des SRM. Quand les listes des prix

sont publiees, elles sont envoyees aux personnes ou organismes qui en ont fait la demande. Ces prix sont sujets a etre revises sans preavis, et les commandes sont facturees selon les tarifs en vigueur au moment de l'envoi.

On ne fait pas de remise sur les achats de SRM, de RM et de GM.

II n'est pas necessaire d'envoyer de paiement avec la commande. Le paiement de la facture doit etre effectue dans les 30 hours apres reception de celle-ci. Le paiement des commandes faites hors des Etats-Unis

peut etre effectue de l'une des facons suivantes:

a. par cheque bancaire a preveler sur un compte aux Etats-Unis

b. par transfert bancaire sur un compte aux Etats-Unis

c. en liquide sur presentation de documents

d. par effet a vue

e. par mandat international

f. par bons de l'UNESCO.

Les lettres de credit ne sont pas acceptees. Si une lettre de credit, ou tout mode de paiement autre que ceux

indiques ci-dessus doit etre utilise, vous devrez vous assurer les services d'un representant aux Etats-Unis qui

agira en votre nom. Votre representant fera 1'achat du materiel, et notre facture le considerera comme

acheteur. Le materiel lui sera expedie, et il le fera suivre selon vos instructions.

Le NBS ne peut pas payer d'avance les frais d'expedition et les inclure dans la facture. Certaines

categories de materiel soumises a des restrictions, telles que les hydrocarbures, les composes organiques de

soufre, les gaz compresses, les materiels caoutchoutes composes, les materiels standard radioactifs, et autres

materiels semblables sont expedies F.O.B. a Gaithersburg (etat de Maryland).

Penalties pour paiement tardif

Sauf avis contaire, le paiement des SRM est du dans les 30 hours suivant l'expedition de la commande au

client. Pour les clients non gouvernementaux, les regies de la Tresorerie americaine exigent que des penalites

12
pour paiement tardif, basees sur la valeur courante de la rente sur l'Etat, soient imposees pour chaque periode

de 30 jours ou moins apres echeance du paiement.

Factore proforma (Detail de la facture)

Le service de facture proforma demande generalement de trois a quatre semaines pour etre prepare, et n'est fourni qu'a ceux qui en font la demande.

Envois Internes

Les materiels (sauf certaines categories soumises a des restrictions) envoyes aux Etats-Unis et au Canada sont

normalement expedies frais de transport compris—a condition que le colis soit dans les limites de poids

imposees par les lois et reglements du service postal.

IE fi vols a I 'iEw trsinqc« r

Les reglements de divers pays concernant l'importation de SRM, GM et RM varient considerablement; toute

tentative de faire la liste de toutes les differences possibles serait mal aisee. Par consequent, dans tous les cas ou les usages d'expedition decrits ci-dessus ne sont pas applicables, les clients sont informes du meilleur mode

d'expedition pour leur pays.

La plupart des commandes sont expediees, frais de transport compris, par poste internationale des colis

par avoin. Les exceptions sont les articles soumis a des restrictions, et les envois hors des limites de poids

pour les paquets postaux. Ces exceptions sont envoyees F.O.B. a Gaithersburg (etat de Maryland), a moins

qu'un representant (compagnie d'expedition ou de courtage) etabli aux Etats-Unis ne soit obligatoire.

Lorsqu'un representant est necessaire, le client en est prevenu et il lui est demande d'en designer un de son

choix. Dans ce cas, le materiel est empaquete en prevision d'un transport a l'etranger, et expedie F.O.B. au

representant a Gaithersburg (etat de Maryland).

Documentation

Vous trouverez ci-dessous la liste des seuls documents que nous fournissons. Tous ces documents sont en

anglais.

a. six factures commerciales

b. deux effets a vue

c. deux fiches detaillant le contenu du paquet

d. des factures douanieres pour le Canada, la Nouvelle-Zelande, l'Australie et l'Afrique du Sud

e. un certificat d'origine

f. des regus de la poste pour les paquets envoyes par la poste

g. un bordereau d'expedition aerienne pour les envois par avion.

Si des documents autres que ceux indiques sur la liste ci-dessus sont demandes, les services d'un representant aux Etats-Unis sont necessaires pour acheter et envoyer les materiels.

N.B. Les commandes et requetes soumises en anglais recevront reponse plus rapidement que celles necessitant une traduction.

13
Einleitung

m Rahmen seines Normenprobenprogramms gibt das National Bureau of Standards ueber tausend

verschiedene Proben aus. In erster Linie handelt es sich um Standard Reference Materials (SRM), die nach

ihrer chemischen Zusammensetzung und ihrer chemischen und physikalischen Eigenschaften geprueft

worden sind und zusaetzlich um sogenannte Research Materials (RM) und Special Reference Materials

(GM). Alle SRM (Normenproben), RM (Forschungsproben) und GM (Spezialproben) tragen gesonderte

Bezeichnungen und Kennummern, wodurch sie permanent identifiziert werden. Das will heissen, dass jede

SRM, RM und GM, die eine bestimmte Beschreibung erhalten hat, identisch ist (innerhalb der erforderlichen

oder beabsichtigten Grenzen) mit jeder anderen Probe, die auf die gleiche Art gekennzeichnet ist. Die einzige

Ausnahme bilden solche Proben, die einzeln geprueft wurden. Diese tragen eine laufende Nummer zur genaueren Kennzeichnung.

Die ersten von NBS herausgegebenen Materialien trugen die Bezeichnung Standard Samples

(Standardproben) und bestanden aus einer Reihe von Erzen, Eisen und Stahlen, deren chemische

Zusammensetzung bestaetigt worden war. Seit Mitte der sechziger Jahre werden diese Materialien als SRM

herausgegeben. Sie umfassen ein breites Spektrum von chemischen und physikalischen Eigenschaften und ein

ebenso breites Spektrum von Messungsinteressen.

Definition©ii

Die SRM, RM oder GM werden auf verschiedene Weise benutzt, um Verschiedenheiten in der Art der

uebermittelten Information anzuzeigen, wie auch Unterschiede in der geplanten Anwendung des Materials.

(Die Bezeichnungen RM und GM werden nicht mehr als Kenncode fuer diese Materialien benutzt; die

Nummern 8000 bis 9999 sind ausschliesslich fuer die RM und GM vorgemerkt.)

Die Standard Reference Materials erhalten vom NBS eine Kennzeichnung nach chemischen oder

physikalischen Eigenschaften und werden dann mit einem Zertifikat versehen, das das Ergebnis der Analyse

angibt. Diese Ergebnisse werden nach einem der drei traditionellen Begutachtungsverfahren gewonnen, d.h.

durch die Messung der jeweiligen Eigenschaft auf Grund (1) einer vorher belegten Pruefungsmethode;

(2) zweier oder mehrerer unabhaengiger und verlaesslicher Messverfahren, oder (3) einer Gruppe

zusammenarbeitender Laboratorien, die technisch kompetent sind und ueber das zu pruefende Material

genauestens Bescheid wissen. "The Role of Standard Reference Materials in Measurement Systems" (Die

Rolle der SRM in Messystemen), NBS Monograph 148, 54 pages (Jan. 1975) beschreibt diese Verfahren in

Einzelnen. Die SRM lassen sich als genau gekennzeichnete und mit Zertifikat versehene Materialien

bezeichnen, die in genuegend grossen Mengen hergestellt werden, um zu einer Verbesserung der

Messwissenschaft beizutragen. Sie werden aus hauptsaechlich drei Gruenden ausgearbeitet und benutzt:

1. um genaue analytische Methoden (Referenzmethoden) zu entwickeln; 2. um Messysteme zu kalibrieren,

die verwendet werden, um (a) den Warenaustausch zu erleichtern; (b) Qualitaetskontrollen einzufurhren;

(c) Leistungscharakteristika festzulegen oder (d) eine bestimmte Eigenschaft an der Grenze des

Hoechstentwicklungsstandes zu messen und 3. um die langfristige Zulaenglichkeit und Intergritaet von

14
Qualitaets-kontrollsystemen zu gewaehrleisten. Auf diese Weise tragen die SRM dazu bei, die Vereinbarkeit

und Genauigkeit von Massen auf den verschiedensten Gebieten—von der Wissenschaft und Technik bis zu Handel und Gewerbe—zu sichern.

Anders als die SRM, enthalten die Research Materials kein Zertifikat, sondern statt dessen einen "Report of

Investigation" (Untersuchungsbericht), der einzig und allein auf der Autoritaet des NBS-Angestellten basiert,

der den Bericht verfasst hat. Ein RM dient vor allem dem Zweck, wissenschaftliche oder technische

Forschungsarbeit an diesem bestimmten Material voranzutreiben. Die hauptsaechliche Ueberlegung bei der

Publikation eines solchen RM ist, homogenes Material anzubieten, um Wissenschaftlern in verschiedenen

Labors die Gewissheit zu geben, dass sie an denselbem Material Forschung treiben.

Special Reference Materials (FM) unterscheiden sich sowohl von den SRM und den RM darin, dass sich das

NBS nicht an der Kennzeichnung dieser Proben beteiligt. Bei den GM handelt es sich um Proben, die von

anderen Regierungsbehoerden, Eichaemtern oder auch von sonstigen gemeinnuetzigen Institutionen

ausgearbeitet und ueberprueft, bezw. garantiert worden ist. In den Faellen, wo es im oeffentlichen Interesse zu liegen scheint oder wo keine anderweitigen landesweiten Verteilungsverfahren verfuegbar sind, betaetigt

sich das NBS als Verteiler derartiger Materialien. Dieser Service wird all jenen Organisationen zur Verfuegung gestellt, die den geltenden Bestimmungen entsprechen und ueber Material verfuegen, das zur Loesung eines nationalen Messproblems beitragen mag.

Das SRM-Verzeichnis

Neue SRM-Verzeichnisse kommen etwa alle drei Jahre heraus. Sie enthalten Listen von neuem, verfuegbaren

Material; von Material, das sich in Vorbereitung befindet und Material, das aus dem Katalog gestrichen

worden ist. Um das Verzeichnis in der Zwischenzeit auf dem Laufenden zu halten, werden alle Jahre

Nachtraege gedruckt, die eine aktuelle Preisliste, sowie etwaige neue Materialien enthalten.

Die Materialien, die in diesem Verzeichnis aufgefuehrt sind, fallen in mehrere Hauptgruppen:

chemische Zusammensetzungsnormen; physikalische Eigenschaftsnormen; Fachnormen;

Forschungsmaterialien und Special Reference Materials (also besonderes Quellenmaterial). Die drei ersten

Gruppen enthalten nur SRM und sind in die Kategorien unterteilt, die im Inhaltsverzeichnis angegeben sind.

Die im Verzeichnis angegebenen Zahlenwerte, die die Eigenschaften der Proben beschreiben, sind als

nominelle Werte zu verstehen und sollten daher nur als Richtwerte zur Auswahl der Materialien benutzt

werden—und nicht etwa an Stelle eines Zertifikats.

Anmerkung: Manche SRM werden ohne Zertifikat herausgegeben. Ausnahmen dieser Art sind sowohl

im Zusammenhang mit der Beschreibung des jeweiligen SRM, als auch in numerischen Inhaltsverzeichnis

angegeben.

Dies Inhaltsverzeichnis enthaelt die SRM-, RM- und GM-Kennziffern aller Materialien, die im

Gesamtverzeichnis aufgefuehrt sind, wie auch das Datum des derzeit geltenden Zertifikats oder aber eine

Erklaerung fuer das Fehlen desselben.

Ein Verzeichnis nach Kategorien bietet eine allgemeine Liste der SRM, sowie den Hauptteil oder das

Hauptelement, das im SRM Erwaehnung findet.

In einem alphabetischen Verzeichnis wird schliesslich die genaue Bezeichnung des SRM—so wie sie in

dem Zertifikat der Analyse aufscheint—angefuehrt.

Vorbereitung und Verfuegbarkeit von SRM

Neue SRM, wie auch Neuauflagen sind staendig in Vorbereitung. Etwaige Abnehmer werden direkt von der

Verfuegbarkeit solcher neuer Materialien in Kenntnis gesetzt und die SRM werden auch in der

naechstfolgenden Ausgabe des Verzeichnisses beschrieben. Falls Sie wuenschen, dass Ihr Name in die NBSKartei aufgenommen wird, damit Sie von neuen Proben erfahren, dann wenden Sie sich bitte an das Office of

Standard Reference Materials, dessen Adresse weiter unten angegeben ist. Bei Neuauflagen von SRM wird versucht, diese fertigzustellen, bevor der Vorrat an bereits

existierenden SRM aufgebraucht ist. Oft ist das jedoch nicht moeglich, was bedeutet, das das betreffende

SRM zeitweilig nicht lieferbar sein wird. Sollte das der Fall sein, dann wird der Besteller dahingehend

benachrichtigt und wenn angebracht, wird Ersatzmaterial angegeben. Wenn die Neuauflage dann verfuegbar

ist, wird der Kunde, der entweder die bisherige Probe oder die Neuauflage bestellt hat, umgehend

benachrichtigt.

Normalerweise sind die Neuauflagen nicht mit den bisherigen Proben identisch, jedoch einander

aehnlich vor allem mit Bezug auf die geprueften Charakteristika. Im allgemeinen kann die Neuauflage an

15
Stelle der vorangegangenen Probe benutzt werden. Als beispielsweise im Jahre 1909 zum ersten Mai 0.1 Prozent kohlenstoffhaltiger Bessemer Flusstahl hergestellt wurde, erhielt er die Bezeichnung Normenprobe

No. 8. In den darauffolgenden Jahren wurden eine Reihe von Neuauflagen mit der Ziffer 8a, 8b usw. herausgegeben. Die derzeit gueltige Ausgabe SRM 8j (Bessemer Stahl [simuliert] 0.1 Prozent

kohlenstoffhaltig) ist die zehnte Neufassung der Probe. Obwohl diese saemtlichen Proben sich in der

Einzelanalyse voneinander etwas unterscheiden, besitzen jedoch alle den charakteristischen, relativ hohen

Anteil solchen Materials an Phosphor, Schwefel, Stickstoff, sowie einen niedrigen Metallegierungsgehalt.

Vorangegangene Nummern einer Neuauflagenserie sind nicht lieferbar, wenn der Vorrat erschoepft

ist. Im Falle geringen Bedarfs oder des Vorhandenseins einer alternativen Lieferquelle, wird die Herstellung

eines bestimmten Materials unter Umstaenden voellig eigestellt.

Bestellinformation

Office of Standard Reference Materials

Room B311, Chemistry Building

National Bureau of Standards

Washington, DC 20234

Telefon: (301) 921-2045

Bestellungen sollten die Anzahl der Einheiten, die Kennummer im Verzeichnis und die namentliche

Bezeichnung der Proben enthalten, z.B. one each, No. llh, Basic-Open-Hearth Steel, 0.2 percent C. Die in

diesem Verzeichnis aufgefuehrten Materialien werden ausschliesslich in den angegebenen Einheiten oder in

Mehrfachsaetzen derselben geliefert.

Annahme einer Bestellung bedeutet jedoch nicht die gleichzeitige Annahme irgendeiner in der

Bestellung angegebenen Bedingung, sofern diese den Gepflogenheiten, der Praxis oder den Richtlinien des

NBS oder der amerikanischen Regierung zuwiderlaeuft.

Falls eine Bestellung ausschliesslich aus "nicht lieferbaren" Proben besteht, wird sie gestrichen. Bei

anderen Bestellungen wird das lagernde Material geschickt und das nicht lieferbare gestrichen.

Nachbestellungen fuer nicht lieferbares Material werden nicht angenommen. Wenn jedoch Neuauflagen

verfuegbar sind, werden diese automatisch geliefert.

Preise sind in US Dollar angegeben und scheinen in der SRM Preisliste auf. Nach Erscheinen dieser SRM

Preislisten werden diese an Kunden geschickt, die in den vorangegangen 12 Monaten Einkaeufe getaetigt

haben wie auch an Einzelpersonen und Organisationen, die darum ersucht haben. Die Preise moegen ohne

vorherige Ankuendigung geaendert werden und Bestellungen werden gemaess der am Versandtag geltenden

Preise fakturiert. Ermaessigungen beim Kauf von SRM, RM und GM werden nicht gewaehrt.

Der Kaufpreis muss nicht gleichzeitig mit der Bestellung ueberwiesen werden. Zahlung wird innerhalb

von 30 Tagen nach Eintreffen der Faktura erwartet. Zahlung von Bestellungen aus dem Ausland kann auf

folgende Weise erfolgen:

a. per Bankscheck auf eine amerikanische Bank ausgestellt;

b. durch Ueberweisung eines Bankwechsels an eine amerikanische Bank;

c. durch Barzahlung;

d. per Tratte;

e. durch internationale Postanweisung;

f. mit UNESCO Kupons.

Kreditbriefe werden nicht akzeptiert. Falls jedoch ein Kreditbrief oder ein sonstiger Zahlungsmodus benutzt

werden soil, moege sich der Besteller an einen Agenten in den Vereinigten Staaten wenden, der ihn vertritt.

Der Agent kauft das Material und scheint auch als der Kaeufer auf unserer Faktura auf. Das Material wird an den Agenten geliefert und dieser schickt es dann an den Besteller gemaess dessen Anweisungen weiter.

Das NBS kann die Faktura nicht mit dem Vermerk "Vorauszahlung und Aufschlag" der

Versandkosten versehen. Materialien, die Beschraenkungen unterworfen sind, werden fob Gaithersburg, MD

16
verschickt—so etwa Kohlewasserstoffverbindungen, Schwefelverbindungen, Gase in Druckbehaeltern,

Kautschukverbundstoffe, radioaktive Normen und aehnlicke Stoffe.

Strafgebuehren fuer Spaetzahler

Falls nicht anderweitig angegeben, soil die Zahlung fuer SRM-Bestellungen innerhalb von 30 Tagen des

Versanddatums erfolgen. Nach den Bestimmungen des amerikanischen Finanzministeriums sind NichtRegierungskunden dazu angehalten, fuer jede 30-Tage Frist oder Teil derselben eine Strafgebuehr auf

ueberfaellige Rechnungen auf der Basis des derzeitigen Wertes an das Finanzministerium zu entrichten.

Proforma Faktura [Preisangabe]

Die Bearbeitung von Proforma-Fakturen nimmt gewoehnlich drei bis vier Wochen in Anspruch und wird nur denjenigen gewaehrt, die darum ersucht haben.

Inlandlieferungen

Sendungen von Materialien (ausser solchen, die Beschraenkungen unterworfen sind) an Adressen in den

Vereinigten Staaten, oder Kanada erfolgen normalerweise mit vorbezahltem Porto—es sei denn, das Paket

uebersteige das vom Postgesetz und den Postbestimmungen zugelassene Hoechstgewicht.)

J\usf ait cfs1 i €?ff©ruti o©n

Die Bestimmungen betreffend den Import von SRM, GM und RM sind in den verschiedenen Laendern

ausserrordentlich verschieden. Es ware daher auch nicht zweckdienlich, die vielen verschiedenen

Bestimmungen hier aufzufuehren. In den Faellen, wo die weiter unten angefuehrten Versandbestimmungen

nicht gelten, wird der Bezieher von dem guenstigsten Versandmodus fuer sein Land unterrichtet werden.

Die meisten Bestellungen werden mit vorbezahltem Porto als internationales Luftpostpaket versendet.

Die Ausnahme bilden Proben, die Beschraenkungen unterworfen sind oder das zulaessige Hoechstgewicht

ueberschreiten. Derartige Sendungen werden fob Gaithersburg, MD geliefert, falls nicht ein Agent in den

Vereinigten Staaten (eine Versandgesellschaft oder ein Makler) eingeschaltet werden muss. In solchen

Faellen wird des Bezieher davon in Kenntnis gesetzt und ersucht, einen Agenten seiner Wahl zu benennen.

Die Probe wird dann ueberseemaessig verpackt und dem Agenten fob Gaithersburg, MD zugeschickt.

Dokumentennachweis

Die folgenden Dokumente sind die einzigen, die von uns bereitgestallt werden. Saemtliche Dokumente sind

in englischer Sprache abgefasst.

a. 6 Rechnungen

b. 2 Tratten

c. 2 Packzettel

d. Zolldeklarationen fuer Kanada, Neuseeland, Australien und Sued-afrika

e. Ursprungsbestaetigung

f. Empfangsscheine fuer Paketpostversand

g. Frachtschein fuer Luftfrachtversand

Falls Dokumente anderer Art als die hier angefuehrten benoetigt werden, sollte man sich beim Einkauf und

Versand des Materials eines Agenten in den Vereinigten Staaten bedienen.

Anmerkung: In englischer Sprache eingereichte Bestellungen und Anfragen werden schneller bearbeitet als solche, die uebersetzt werden muessen.

17

Certified Chemical

Composition Standards

Steels (Chip Form)

These SRM's were prepared for the steel industry primarily for use with methods involving sample solutions

in checking chemical methods of analysis for both production control and customer acceptance. These

SRM's consist of nominal composition steel alloys selected to provide a wide range of analytical values for

various elements of vital concern to the chemist. They are furnished in 150-gram units (unless otherwise

noted) as chips usually sized between 0.4 to 1.2 mm, prepared from selected portions of commercial ingots.

Plain Carbon Steels

Chemical Composition (Nominal Weight Percent)

SRM Type C Mn P S Si

Grav Comb

8j Bessemer (simulated), 0.1C 0.081 0.505 0.095 0.077 0.058

llh BOH, 0.2C 0.200 0.510 0.010 0.026 0.21,

12h BOH, 0.4C 0.407 0.842 0.018 0.027 0.235

13g BOH, 0.6C 0.613 0.853 0.006 0.031 0.35 5 14f BOH, 0.8C 0.753 0.410 0.009 0.039 0.172

15g BOH, 0.1C 0.094 0.485 0.005 0.026 0.095

16f BOH, 1.1C 0.97 0.404 0.014 0.026 0.214

19g AOH, 0.2C 0.223 0.554 0.046 0.032 0.033 0.186

20g AISI 1045 0.462 0.665 0.012 0.028 0.305

152a BOH, 0.5C (Tin bearing) 0.486 0.717 0.012 0.030 0.202

178 Basic Oxygen 0.4C 0.395 0.824 0.012 0.014 0.163

335 BOH, 0.1C (Carbon only) 300 g 0.092

337 BOH, 1.1C (Carbon only) 300 g

1.07 368 AISI 1211 0.089 0.82 0.084 0.132 0.007

Robert Walters checks the alignment of the plasma flame image on the entrance mask of

the inductively coupled plasma IICP)

spectrometer. 1

9
Plain Carbon Steels (Continued)

cny v-U MS vV 1V10 Ti A

1

(total)

IN utner

8j 0.020 0.113 0.047 0.015 0.038

llh 0.061 0.028 0.025 0.001 0.004

12h 0.073 0.032 0.074 0.003 0.006 (0.038) 0.006

13g 0.066 0.061 0.050 0.001 0.04s 14f 0.072 0.053 0.070 0.002 0.013 0.060

15g 0.036 0.017 0.028 0.001

16f 0.006 0.008 0.020 0.002 0.003 0.003

19g 0.093 0.066 0.374 0.012 0.013 0.012 0.027 0.008 0.031 Nb 0.026

20g 0.034 0.034 0.036 0.002 0.008 0.040

152a 0.023 0.056 0.046 0.001 0.036 0.032

178 0.032 0.010 0.016 0.001 0.003

335

337

368 0.010 0.008 0.030 0.001 0.003 0.010

Values in parentheses are not certified, but are given for information only.

Low Alloy Steels

Chemical Composition (Nominal Weight Percent)

SRM Type (Other Forms) C Mn P S Si Cu Ni Cr

Grav Comb

30f Cr-V (SAE 6150) 0.490 0.79 0.011 0.009 0.283 0.074 0.070 0.945

32e Ni-Cr (SAE 3140) 0.409 0.798 0.008 0.022 0.021 0.278 0.127 1.19 0.678

33d Ni-Mo (SAE 4820) 0.173 0.537 0.006 0.010 0.011 0.253 0.123 3.58 0.143

36b Cr2-Mol 0.114 0.404 0.007 0.019 0.258 0.179 0.203 2.18

72g Cr-Mo (SAE X4130) 0.278 0.492 0.009 0.014 0.223 0.011 0.016 0.905

100b Manganese (SAE T1340) 0.397 1.89 0.023 0.029 0.028 0.210 0.064 0.030 0.063

105 High-Sulfur 0.2C (Carbon only) 0.193 (0.60)

106b Cr-Mo-Al (Nitralloy G) 0.326 0.506 0.008 0.016 0.017 0.274 0.117 0.217 1.18 125b High-Silicon 1134 0.028 0.278 0.029 0.008 2.89 0.071 0.038 0.019

129c High-Sulfur 0.125 0.769 0.076 0.245 0.020 0.013 0.251 0.014

131c Low Carbon-Silicon (lOOg) 0.0029 0.020 0.488

139b Cr-Ni-Mo (AISI 8640) 1222 0.403 0.778 0.013 0.019 0.242 0.097 0.510 0.485

155 Cr0.5-W0.5 0.905 1.24 0.015 0.010 0.011 0.322 0.083 0.100 0.022

179 High-Silicon 1135 0.027 0.094 0.006 0.026 3.19 0.056 0.050 1.33 291 Cr-Mo (ASTM A213) 0.177 0.550 0.008 0.020 0.230 0.047 0.065 0.5

l

n

293 Cr-Ni-Mo (AISI 8620) 0.222 0.960 0.018 0.022 0.30() 0.032 0.48n 361 AISI 4340 661,1095,1261a 0.383 0.66 0.014 0.014 0.222 0.042 2.00 0.694 362 AISI 94B17 (Mod) 662,1096,1262a 0.160 1.04 0.041 0.036 0.39 0.50 0.59 0.30

363 Cr-V (Mod) 663,1097,1263a 0.62 1.50 0.029 0.0068 0.74 0.10 0.30 1.31 364 High Carbon (Mod) 664,1098,1264a 0.87 0.25, 0.01 0.0250 0.065 0.249 0.144 0.06,

1036 Low Carbon Silicon (25g) Carbon and Sulfur 0.0007

20
Low Alloy Steels (Continued)

SRM v Mo W Co Ti A<! Sn AI

(total)

Nb Ta Zr N Ca

30f 0.182 0.010

32e 0.002 0.023 (0.011) 0.009

33d 0.002 0.246 (0.011)

36b 0.004 0.996

72g 0.003 0.170

100b 0.003 0.237 0.004

105

106b 0.003 0.199 1.07 125b 0.008 0.003 0.329 0.0051

129c 0.012 0.002

139b 0.004 0.182 0.007

155 0.014 0.039 0.517

179 <0.01 0.014 0.004 0.0028

291 0.53 8 0.002

293 0.004 0.204 0.039

361 0.011 0.19 0.017 0.032 0.020 0.017 0.010 0.02, 0.022 0.020 0.009 (0.0037) 0.000 1„ 362 0.040 0.068 0.20 0.30 0.084 0.09, 0.016 0.09 5 0.29 0.20 0.19 (0.00404) 0.0002,

363 0.31 0.028 0.046 0.048 0.050 0.010 0.1

0

4 0.24 0.049 (0.053) 0.049 (0.0041) 0.0002,

364 0.105 0.49 0.10 0.15 0.24 0.05 2 0.008 (0.008) 0.1

5

7 0.11 0.068 (0.0032) 0.00003

SRM B Pb Sb Bi Ag Se Te Ce La Nd Fe

361 0.0003 7 0.00002, 0.0042 (0.0004) 0.0004 (0.004) (0.0006) 0.0040 (0.001) 0.0OO7 5 (95.6)

362 0.0025 0.0004R 0.013 (0.002) 0.0011 (0.0012) (0.0011) 0.0019 (0.001) 0.0007, (95.3)

363 0.0007 8 0.001 8„ 0.002 (0.0008) 0.0037 (0.00016) (0.0009) 0.0030 (0.002) 0.0012 (94.4)

364 0.0106 0.0230 0.034 (0.0009) (0.00002) (0.00021) (0.0002) 0.0005 7 (0.0002) 0.0001 5 (96.7)

SRM Mg Zn Pr Ge O H Au Hf Sr

361 0.0002„ (0.0001) (0.0003) [0.006] (0.0009) (<0.0005) (<0.00005) (0.0002) -(<0.0005)

362 0.00068 (0.0005) (0.0003) [0.0021 (0.00107) (<0.0005) (<0.00005) (0.0003) -(<0.0005)

363 0.00062 (0.0004) (0.0004) [0.0101 (0.00066) (<0.0005) 0.0005 (0.0005)

364 0.00016 [0.001 | (0.0001) [ 0.003 ] (0.0010) (<0.0005) 0.0001 (0.0013) (0.001)

Values in parentheses are not certified, but are given for information only.

Brackets indicate approximate value from heat analysis.

Dash indicates "not detected." Value in parentheses following dash is the conservative "upper limit" of detection.

21
High Alloy Steels

Chemical Composition (Nominal Weight Percent)

SKM Type C Mn P S Si Cu

Grav Comb

126c High-Nickel (36% Ni) 0.025 0.468 0.004 0.005 0.194 0.040

344 Crl5-Ni7-Mo2-All 0.69 0.57 0.018 0.019 0.395 0.106

345 Crl6-Ni4-Cu3 0.048 0.224 0.018 0.012 0.012 0.610 3.44

348 Ni26-Crl5 (A286) 0.044 1.48 0.015 0.002 0.54 0.22

SRM Ni Cr V Mo Co Ti Al

(total)

Nh Ta B Fe

126c 36.05 0.062 0.001 0.011 0.008

344 7.28 14.95 0.040 2.40 0.076 1.16 345 4.24 16.04 0.041 0.122 0.089 0.231 0.002

348 25.8 14.54 0.25 1.3 2.24 0.23 0.0031 53.3

Stainless Steels

Chemical Composition (Nominal Weight Percent)

SRM Type (Other Forms) C Mn P S Si Cu

Grav Comb

73c Crl3 (SAE 420) 0.310 0.330 0.018 0.036 0.181 0.080

121d Crl7-Nill-Ti0.3 (AISI 321) 1171 0.067 1.80 0.019 0.013 0.54 0.121

123c Crl7-Nill-Nb0.6 (AISI 348) 1172 0.056 1.7, 0.024 0.014 0.59 0.103

133b Crl3-Mo0.3-S0.3 0.128 1.07 0.018 0.328 0.327 0.080

160b Crl9-Nil2-Mo3 1155 0.044 1.64 0.020 0.018 0.50, 0.172

166c Low Carbon (AISI 3162)

Carbon Only (lOOg unit)

0.0078

339 Crl7-Ni9-Se0.2 (SAE 303Se) 0.052 0.738 0.129 0.013 0.654 0.199

367 Cr24-Ni0.3 (AISI 446) 1267 0.093 0.315 0.018 0.016 0.58

22
Stainless Steels (Continued)

SRM Ni Cr V Mo Co Ti Nb Ta Pb Se N

73c 0.246 12.82 0.030 0.091 0.037

1 2 Id 11.17 17.4, 0.165 0.10 0.342

123c 11.

3

4 17.40 0.22 0.12 0.65 <0.001

133b 0.230 12.63 0.071 0.052

160b 12.26 18.4, 0.047 2.38 0.10, 0.001 0.03 q

166c

339 8.89 17.42 0.058 0.248 0.096 0.247

367 0.29 24.19 0.08 0.168

Tool Steels

Chemical Composition (Nominal Weight Percent)

SRM Type C Mn P s Si Cu

Grav Comb

50c W18-Cr4-Vl 0.719 0.342 0.022 0.010 0.009 0.311 0.079

132b Mo-W-Cr-V 0.864 0.341 0.012 0.004 0.185 0.008

134a Mo8-W2-Cr4-Vl 0.808 0.218 0.018 0.007 0.007 0.323 0.101

153a Co8-Mo9-W2-Cr4-V2 0.902 0.192 0.023 0.007 0.007 0.270 0.094

SRM Ni Cr V Mo W Co Sn As N

50c 0.069 4.13 1.16 0.082 18.44 0.018 0.022 0.012

132b 0.230 4.38 1.83 4.90 6.28 0.029

134a 0.088 3.67 1.25 8.35 2.00

153a 0.168 3.72 2.06 8.85 1.76 8.47 0.024

Steels (Granular Form)

These granular-form SRM's are prepared by a pre-alloyed powder metallurgical process, which generally

includes argon atomization and hydrogen annealing. The materials normally are sized between 0.07 to 0.7

mm to ensure satisfactory homgeneity and are issued in 100-gram units.

Chemical Composition (Nominal Weight Percent)

SRM Type C Mn P S Si Cu Ni

163 Low Alloy, 1.0 Cr 0.933 0.897 0.007 0.027 0.488 0.087 0.081

lOlf Stainless (AISI 304 L) 0.014 0.087 0.008 0.008 0.876 0.030 9.96

23
Steels (Granular Form) (Continued)

SRM Cr V Mo W Co N As Sb Ga

163 0.982 0.029 0.007

lOlf 18.49 0.034 0.007 (0.0002) 0.088 (0.003) (0.0009) (0.004)

Values in parentheses are not certified, but are given for information only.

Steels (Solid Form)

Several groups of SRM's have been prepared to meet the basic needs of the steel industry for analytical

control primarily by optical emission and x-ray spectroscopic methods of analysis. Both nominal composition

and analytical range SRM's are provided for ingot iron, low-alloy steel, stainless steel, tool steel, and

specialty steel. These SRM's are furnished in various forms. The 400 series is intended for optical emission

spectroscopic methods of analysis utilizing the "point-to-point" technique. The 600 series is intended for

microchemical methods of analysis such as electron probe microanalysis, spark source mass spectrometric

analysis, and laser probe analysis. The 800, 1100, and 1200 series are intended for "point-to-plane" optical

emission spectroscopic methods of analysis. The D800 series, and the 1100 and 1200 series also are intended

for x-ray spectroscopic methods of analysis.

Because of the special homogeneity requirements, most of these materials have been prepared by using

the most modern techniques of melting, casting, fabrication, and heat treatment to ensure adequate uniformity

of composition.

Note: Values in parentheses are not certified as they are based on the results from a single laboratory. Values

in brackets are not certified but are nominal values obtained from heat analyses. These values are given for

additional information on the chemical composition.

Nominal Sizes for Solid Steel SRM's

400 Series: 5.5 mm (7/32 in) diameter, 102 mm (4 in) long

600 Series: 3.2 mm (1/8 in) diameter, 51 mm (2 in) long

800 Series: 13 mm (1/2 in) diameter, 51 mm (2 in) long

D800 Series: 31 mm (1 1/4 in) diameter, 6.4 mm (1/4 in) thick

1100 and 1200 Series: 31 mm (11/4 in) diameter, 19 mm (3/4 in) thick

C indicates a chill cast sample: 31 mm (1 1/4 in) diameter, 19 mm (3/4 in) thick.

Ingot Iron and Low-Alloy Steels

The preparation of these original spectroscopic SRM's began in 1944 when the cores remaining after lathe

cutting the materials for chip form standards were tested for homogeneity. Those found satisfactory were

fabricated to the final shapes and sizes. To meet the urgent need in the mid-1950's for calibration standards

for x-ray spectroscopic methods of analysis, portions of the material from five of these SRM's were

converted to the applicable disk form. Although entirely satisfactory for conventional spectroscopic methods

of analysis, these SRM's generally do not meet the stringent requirements for homogeneity necessary for use with the newer microchemical methods of analysis. These standards will be discontinued when the supply is exhausted.

24
Ingot Iron and Low-Alloy Steels

Chemical Composition (Nominal Weight Percent)

SRM Type Mn Si Cu Ni Cr

803a D803a Acid Open Hearth, 0.6C 1.04 0.34 0.096 0.190 0.101

404a 804a Basic Electric 0.88 0.44 0.050 0.040 0.025

405a 805a Medium Manganese 1.90 0.27 0.032 0.065 0.37

407a 807a D807a Chromium-Vanadium 0.76 0.29 0.132 0.169 0.92

408a 808a Chromium-Nickel 0.76 0.28 0.10 1.20 0.655

409b 809b Nickel 0.46 0.27 0.104 3.29 0.072

413 Acid Open Hearth, 0.4C 0.67 0.22 0.25 0.18 0.055

414 Cr-Mo (SAE 4140) 0.67 0.26 0.11 0.080 0.99

417a 817a Basic Open Hearth, 0.4C 0.78 0.13 0.062 0.050

418a Cr-Mo (SAE X4130) 0.52 0.27 0.040 0.125 1.02

420a 820a Ingot Iron 0.017 0.027 0.0092 0.0032

821 Cr-W, 0.9C 1.24 0.080 0.10 0.49

427 827 Cr-Mo (SAE4150)(B only)

SRM V Mo Sn Al

(total)

Other

803a D803a 0.005 0.033

404a 804a 0.002 0.007

405a 805a 0.005 0.056

407a 807a D807a 0.146

408a 808a 0.002 0.065

409b 809b 0.002 0.009 0.012 Co 0.025

413 0.007 0.006

414 0.003 0.32 0.014 0.020

417a 817a 0.013 0.036

418a 0.21

420a 820a 0.0013 0.0017 0.003 Co 0.006

821 0.012 0.040 W0.52

427 827 B0.0027

25
Special Ingot Irons and Low-Alloy Steels

The planning of the 1100 series SRM's began in late 1952 to meet critical requirements of calibration in the

iron and steel industry. Steel for these SRM's was prepared by the most modern melting, casting, and

fabrication techniques to provide large quantities of material of the highest possible homogeneity. The

materials were fully characterized and included investigations by means of electron probe microanalysis and

quantitative metallographic techniques. It was concluded that, for example, SRM's 461 and 463 are

sufficiently homogeneous that any present microanalytical technique can be carried out with little chance of

inaccuracy caused by inhomogeneity. Details of the metallographic and homogeneity characterization are given in NBS Miscellaneous Publication 260-3 and 260-10, respectively.

The 1200 series replaces the 1 100 series which has been exhausted and consists of four low alloy steels

and an electrolytic iron containing a graded series of 40 elements. Material from the same melts are available

in three other forms: chip form, 361-365, for chemical methods of analysis; rods, 661-665, 3.2 mm (1/8 in) in

diameter and 51 mm (2 in) long for microchemical methods of analysis such as electron probe microanalysis,

spark source mass spectrometric analysis, and laser probe analysis; and rods (1095-1099), 6.4 mm (1/4 in) in

diameter and 102 mm (4 in) long for determining gases in metals by vacuum fusion and neutron activation

methods of analysis. The preparation of the 1200 series involved a cooperative effort between industry and

NBS, and represents the first application of the "benchmark" concept to SRM's. With thousands of industrial

processes requiring analytical control, demands for SRM's far exceeded the NBS production capacity. An

ever widening gap between supplies and demands led to a program to produce essential "benchmark" SRM's

to serve as calibration points in measurement systems. While other selected low-alloy steel SRM's will be

prepared to augment the 1200 series, this series is expected to be the primary "benchmarks," especially for

some 25 trace elements that affect the physical properties of steels.

Special Ingot Irons and Low-Alloy Steels

Chemical Composition (Nominal Weight Percent)

SRM Type (Other Forms) C Mn P s Si

1134 High-Silicon 125b 0.026 0.277 0.028 0.009 2.89

1135 High-Silicon 179 0.027 0.094 0.006 0.026 3.19

1136 High-Silicon 129c 0. 1 1 3 0.75 5 0.066 0.220 0.018

461 Low Alloy A 0.15 0.36 0.053 0.019 0.047

462 Low Alloy B 0.40 0.94 0.045 0.019 0.28

464 Low Alloy D 0.54 1.32 0.017 0.021 0.48

465 Ingot Iron E 0.037 0.032 0.008 0.01 0.029

466 1166 Ingot Iron F 0.065 0.11, 0.012 0.009 0.025

467 Low Alloy G 0.11 0.27 5 0.033 0.009 0.26

468 Low Alloy H 0.26 0.47 0.023 0.020 0.075

1169b Lead-Bearing 0.1 (1.1) (0.07) (0.3) (0.01)

C1221 Resulfurized/Rephosphorized 0.020 0.102 0.090 0.112 0.876

1222 Cr-Ni-Mo (AISI 8640) 139b 0.43 0.78 0.013 0.022 0.24

1224 Carbon 0.75 0.41 0.009 0.039 0.173

1225 Low Alloy (AISI 4130) 0.274 0.48 0.007 0.014 0.221

1226 Low Alloy 0.085 0.274 0.0022 0.0044 0.231

1227 Basic Open Hearth, 1% 0.97 0.402 0.014 0.026 0.215

1228 Basic Open Hearth, 0.1% 0.072 0.365 0.004 0.018 0.007

1254 Ca in Low Alloy (Si) (0.03) (0.28) (0.03) (0.008) (2.9)

*661 1261a AISI 4340 361,1095 0.39 0.66 0.015 0.015 0.223

26
Special Ingot Irons and Low-Alloy Steels (Continued)

Chemical Composition (Nominal Weight Percent)

SRM Type (Other Forms) c Mn P s Si

*662 1262a AISI 94B17 (Mod) 362,1096 0.163 1.05 0.044 0.037 0.40

*663 1263a Cr-V (Mod) 363,1097 0.57 1.50 0.029 0.0055 0.74

*664 1264a High Carbon (Mod) 364,1098 0.871 0.25 8 0.010 0.025 0.066

*665 1265a Electrolytic Iron 365,1099 0.008 0.0057 0.002 5 0.0059 0.0080

1269 Low Alloy (AISI 1526, Mod) 0.298 1.35 0.012 0.0061 0.189

1270 Cr-Mo Low Alloy 0.077 0.626 0.0065 0.0065 0.247

C1285 Low Alloy (A242 Mod) 0.058 0.332 0.072 0.020 0.36

1286 Low Alloy (Hy 80) 0.196 0.152 0.008 0.017 0.130

SRM Cu Ni Cr V Mo W Co Ti

1134 0.070 0.038 0.019 0.008

1135 0.056 0.050 0.022 <0.01 0.014

1136 0.014 0.270 0.014 0.012 0.002

461 0.34 1.73 0.13 0.024 0.30 0.012 0.26 (0.01)

462 0.20 0.70 0.74 0.058 0.080 0.053 0.1

1

0.037

464 0.094 0.135 0.078 0.295 0.029 0.022 0.028 0.004

465 0.019 0.026 0.004 0.002 0.005 (0.001) 0.008 0.20

466 0.033 0.051 0.011 0.007 0.011 (0.006) 0.046 0.057

467 0.067 0.088 0.036 0.041 0.021 0.20 0.074 0.26

468 0.26 1.03 0.54 0.17 0.20 0.077 0.16 0.011

1169b (0.07) (0.04) (0.05) (0.001) (0.01)

C1221 0.041 0.067 0.049 (0.0007) 0.038 (0.010) (0.0014)

1222 0.097 0.51 0.48 0.005 0.18 (0.016) (0.002)

1224 0.072 0.054 0.071 0.002 0.013

1225 0.018 0.91 0.004 0.166

1226 0.125 5.42 0.467 0.0018 0.446 (0.005) 0.029 0.0021

1227 0.006 0.007 0.019 0.002 0.003 0.003 (0.0008)

1228 0.012 0.018 0.016 <0.001 0.009

1254 (0.07) (0.04) (0.02) (0.008)

*661 1261a 0.042 1.99 0.69 0.011 0.19 0.017 0.032 0.020

*662 1262a 0.51 0.60 0.30 0.04, 0.070 0.21 0.30 0.084

*663 1263a 0.098 0.32 1.31 0.31 0.030 0.046 0.048 0.050

*664 1264a 0.250 0.142 0.066 0.1

0

b 0.49 0.1

0

2 0.15 0.23

*665 1265a 0.0058 0.041 0.007; 0.0006 0.005 (0.0004) 0.0070 0.0006

1269 0.095 0.108 0.201 0.004 0.036 (0.001) (0.014) (0.009)

1270 0.114 0.174 2.34 0.013 0.956 (0.003) 0.038 (0.003)

C1285 0.37 1.17 0.80

1286 0.043 2.81 1.53

27
Special Ingot Irons and Low-Alloy Steels (Continued)

SRM As Sn Al

(total)

B Pb Ag Ge

1134 0.003 0.329

1135 0.004 0.0028

1136

461 0.028 0.022 0.005 0.000, (0.003) (O.OOI5) (0.0010

462 0.046 0.066 0.02, 0.000, 0.006 (<0.0002) (0.003() )

464 0.018 0.043 0.005 0.005 0.020 (0.003) (0.001 5 ) 465 0.010 0.001 0.19 0.000, (<0.0005) (0.0002 5 ) (0.003 5 ) 466 0.014 0.005 0.01 5 (0.000,

)

(0.001,) (0.00045 ) (0.0030) 467 0.14 0.10 0.16 (0.002 ) 0.0006 (0.0040 ) (0.0030) 468 0.008 0.009 0.04, 0.009 (<0.0005) (<0.0002) (0.0001)

1169b 0.193

C1221 0.111

1222 (0.038)

1224 0.060

1225

1226 (0.003) 0.054

1227 (0.028)

1228 0.061

1254 (0.003) (0.33)

*661 1261a 0.017 0.011 0.02, 0.0005 0.00002 5 0.0004 |0.006|

*662 1262a 0.092 0.016 0.09 5 0.0025 0.0004, (0.001) 1 0.002|

*663 1263a 0.010 (0.095) 0.24 0.0009, 0.0022 (0.0037) [0.010]

*664 1264a 0.05, [0.005] (0.008) 0.011 0.024 (0.00002) [ 0.003 | *665 1265a (0.0002) (0.0002) (0.0007) 0.00013 0.00001 5 (0.000002) (-0.0014)

1269 (0.006) (0.039) 0.016 «0.001) 0.005 (0.0002)

1270 (0.02) (0.02) (0.005) (0.0033) (0.0016) (0.0001)

C1285

1286

28
Special Ingot Irons and Low-Alloy Steels (Continued)

SRM O N H Nb Ta Zr

1134

1135

1136

461 (0.020 ) (0.006) 0.011 0.002 (<0.005)

462 (0.006) (0.00g ) 0.096 0.036 0.063

464 (0.006) (0.007 ) 0.037 0.069 0.010

465 (0.003) (0.005 ) (0.001) 0.001 (0.002)

466 (0.005) (0.006 ) 0.005 0.002 (<0.005)

467 (0.004) (0.004 ) 0.29 0.23 0.094

468 (0.004) (0.006 ) 0.006 0.005 (<0.005)

1169b

C1221 (0.0017)

1222 (0.007) (0.002)

1224

1225

1226 (0.005) (0.010)

1227 (0.0006)

1228

1254

*661 1261a (0.0009) (0.0037) [<0.0005] 0.022 0.020 0.009

*662 1262a (0.0011) (0.0041) [<0.0005] 0.30 0.21 0.20

*663 1263a (0.0007) (0.0041) [<0.0005] 0.049 (0.053) 0.050

*664 1264a [0.0017] [0.003] [<0.0005] 0.1

5

7 0.11 0.69

*665 1265a (0.0063) (-0.001 1) (-0.0001) -(<0.00005) -(<0.00001)

1269 (0.006) (0.009) (0.0002) (0.008) (0.003)

1270 (0.008) (0.005) (0.010)

C1285

1286

SRM Sb Bi Ca Mg Te Zn

*661 1261a 0.0042 0.0004 (<0.0001) (0.0001) 0.006 (0.0001)

*662 1262a 0.01

2

0 (0.002) (0.0002) (0.0006) (0.0005) (0.0005)

*663 1263a 0.002 (0.0008) (<0.0001) (0.0005) (0.0022) (0.0004)

*664 1264a (0.035) (0.0009) (<0.0001) (0.0001) [0.0002] [0.001]

*665 1265a -(<0.00005) -(<0.00001) -(<0.00001) -(<0.00002) -(<0.00001) (<0.0001)

29
Special Ingot Irons and Low-Alloy Steels (Continued)

SRM Au Ce Hf La Nd Pr Fe

661 1261a (<0.00005) 0.0013 [0.0002| 0.0004 0.0003 (0.00014) (95.6)

*662 1262a (<0.00005) (0.0011) [ 0.006 ] 0.0004 (0.0005) (0.00012) (95.3)

*663 1263a 0.0005 (0.0016) [0.0015] 0.0006 (0.0007) (0.00018) (94.4)

*664 1264a 0.0001 (0.00025) [0.005| 0.00007 (0.00012) (0.00003) (96.7)

*665 1265a -(<0.000002) -(<0.000005) -(<0.00002) -(<0.000005) -(<0.000005) -(<0.000005) (99.9)

*SRM's 661, 662, 663, 664, and 665 are sold in a set only as SRM S668.

Values in parentheses are not certified, but are given for information only.

Brackets indicate approximate value from heat analysis.

Dash indicates "not detected." Value in parentheses following dash is the conservative "upper limit" of detection.

Stainless Steels

Three groups of stainless steel SRM's designed primarily for calibration in spectroscopic methods of analysis are available.

Groups I and II have been extensively tested for homogeneity and found satisfactory for application in

conventional spectroscopic methods of analysis. Neither group, however, has been tested for microanalytical

methods and their use in these applications is not recommended.

Group III are for the "point-to-plane" technique of emission spectroscopy and for x-ray spectroscopy.

They were prepared by melting, casting, and fabrication techniques known to produce material of high

homogeneity.

Group I

Chemical Composition (Nominal Weight Percent)

SRM Type Mn Si Cu Ni Cr V Mo w Co

442 Crl6-Nil0 2.88 (0.09) 0.11 9.9 16.1 0.032 0.12 (0.08) 0.13

443 Crl8.5-Ni9.5 3.38 (0.15) 0.14 9.4 18.5 0.064 0.12 (0.09) 0.12

444 Cr20.5-NilO 4.62 (0.65) 0.24 10.1 20.5 0.12 0.23 (0.17) 0.22

SRM Ti Sn Nb Ta B Pb Zr Zn

442 0.002 0.0035 0.032 (0.0006) 0.0005 0.0017 (0.004) (0.003)

443 0.003 0.006 0.056 (0.0008) 0.0012 0.0025 (0.005)

444 0.019 0.014 0.20 (0.004) 0.0033 0.0037 (0.11) (0.004)

Values in parentheses are not certified, but are given for information only.

30
Group II

Chemical Composition (Nominal Weight Percent)

CDM Type Mn Si Cu Ni Cr V

445 Crl3-Mo0.9 (Mod. AISI 410) 0.77 0.52 0.065 0.28 13.31 (0.05)

446 Crl8-Ni9 (Mod. AISI 321) 0.53 1.19 0.19 9.11 18.35 (0.03)

447 Cr24-Nil3 (Mod. AISI 309) 0.23 0.37 0.19 13.26 23.72 (0.03)

448 Cr9-Mo0.3 (Mod. AISI 403) 2.13 1.25 0.16 0.52 9.09 (0.02)

449 849 D849 Cr5.5-Ni6.5 1.63 0.68 0.21 6.62 5.48 (0.01)

450 850 D850 Cr3-Ni25 0.12 0.36 24.8 2.99 (0.006)

SRM Mo W Ti Sn Nb Ta

445 0.92 (0.42) (0.03) 0.11 (0.002)

446 0.43 (0.04) (0.34) (0.02) 0.60 (0.030)

447 0.059 (0.06) (0.02) 0.03 (0.002)

448 0.33 (0.14) (0.23) (0.05) 0.49 (0.026)

449 849 D849 0.15 (0.19) (0.11) (0.07) 0.31 (0.021)

450 850 D850 (0.21) (0.05) (0.09) 0.05 (0.002)

Values in parentheses are not certified, but are given for information only.

Group III

Chemical Composition (Nominal Weight Percent)

SRM Type

Other

Forms C Mn P S Si Cu Ni Cr

1151a Cr22-Ni7—IN PREP

CI 151 Cr22-Ni7 0.039 2.50 0.017 0.038 0.38 0.418 7.29 22.70

1152a Crl8-Nil0—IN PREP

CI 152 Crl8-Nil0 0.148 0.96 0.021 0.0064 0.80 0.102 10.88 17.81 1153a Crl6-Ni8—IN PREP

CI 153 Crl6-Ni8 0.264 0.50 0.030 0.018 1.07 0.23 8.77 16.69

1154a Crl9-Nil2—IN PREP

CI 154 Crl9-Nil2 0.086 1.42 0.06 0.053 0.50 0.40 12.92 19.06

1155 Crl8-Nil2-Mo2 (AISI 316) 160b 0.046 1.63 0.020 0.018 0.502 0.169 12.18 18.45 1170b Selenium-Bearing (0.052) (0.738) (0.129) (0.013) (0.654) (0.199) (8.89) (17.42)

1171 Crl7-Nill-Ti0.3 121d 0.067 1.80 0.018 0.01 3 0.54 0.121 11.2 17.4

1172 Crl7-Nill-Nb0.6 123c 0.056 0.025 0.01 4 0.59 0.105 11.

3

5 17.40 1267 AISI 446 367 0.093 0.315 0.018 0.015 0.58 0.29 24.14

C1287 AISI 310 Mod. 0.36 1.66 0.029 0.024 1.66 0.58 21.16 23.98

C1288 (A-743) 0.056 0.83 0.023 0.010 0.41 3.72 29.3 19.55

C1289 AISI 414 Mod. 0.014 0.35 0.017 0.021 0.156 0.205 4.13 12.12

31
Group III (Continued)

SRM V Mo Co Ti As Sn Al Nb Ta B Pb Zr

1151a

CI 151 0.037 0.80 0.032 0.0039

1152a

CI 152 0.030 0.43 0.22 0.0047

1153a

CI 153 0.18 0.24 0.127 0.0054

1154a

C1154 0.135 0.07 0.38 0.0178

1155 0.047 ' 2.38 0.101 0.001

1170b (0.058) (0.248) (0.096) Se 0.23

1171 0.1

6

5 0.10 0.34

1172 0.22 0.12 0.65 <0.001

1267 0.08 N 0.17

C1287 0.09 0.46 0.31 0.050 N(0.034) (0.06) (0.07) 0(0.017) 0.008 (0.006)

C1288 0.086 2.83 0.10 0.012 N(0.028) (0.0025) (0.22) 0(0.029) W(0.2) 0.0041 (0.002)

C1289 0.007 0.82 0.035 0.005 N(0.017) (0.0016) (0.10) 0(0.027) 0.0005 (0.001)

Values in parentheses are not certified, but are given for information only.

Specialty Steels

SRM's 1156, Maraging Steel, and 1158, High-Nickel Steel (Invar), are designed primarily for use in optical

emission and x-ray spectrometric methods of analysis.

SRM 1 156 derives its name from the formation of martensite on age hardening. Alloys of this type are used extensively in submarines, missiles, and aircraft.

SRM 1 158 has good impact toughness down to -269 °C and has an extremely low coefficient of

expansion between -253 and 203 °C. These properties make this material very useful for cryogenic

application. SRM 1158 also serves as a "benchmark" for the production control of high-nickel (40Ni-60Fe)

alloys.

Chemical Composition (Nominal Weight Percent)

SRM Type c Mn P S Si Cu

1156 Maraging (Ni 19) 0.023 0.21 0.011 0.012 0.184 0.025

1158 High-Nickel (Ni 36) 0.025 0.468 0.004 0.005 0.194 0.039

SRM Ni Cr Mo Co Ti Al Zr B Ca V

1156 19.0 0.20 3.1 7.3 0.21 0.047 0.004 0.003 <0.001

1158 36.03 0.062 0.010 0.008 0.001

32
High-Temperature Alloys

High-temperature alloy SRM's were prepared to meet the critical needs of industry, particularly the

aerospace industry, and government agencies. These SRM's are useful in instrument calibration, primarily for

x-ray and optical emission spectroscopic methods of analysis.

Chemical Composition (Nominal Weight Percent)

SRM Type C Mn P S Si Cu

1197 M308 (0.045) (0.047) (0.008) (0.002) (0.13)

SI 198 Incoloy 901 set Hastelloy X

(0.048)

(0.039)

(0.49) (0.006)

(0.008)

(0.002) (0.38)

(0.54)

(0.012)

SI 199 L 605 set (0.14) 1.42 (0.005) 0.83

S 816 (0.40) 1.34 (0.015) 0.86

1206-2 Rene-41 0.21 7 0.030 (0.004) 0.006 0.21 6 0.040

1207-1 Waspaloy( 1

)

0.043 0.34 0.005 0.009 0.47, 0.026

1207-2 Waspaloy(2) 0.083 0.29, 0.005 0.009 0.61, 0.033

1208-1 Inco 718(1) 0.046 0.38 5 0.003 0.01, 0.434 0.14,

1208-2 Inco 718(2) 0.022 0.230 0.003 0.007 0.08, 0.077

1244 Inconel 600 0.06 0.3 <0.01 <0.01 0.1 0.3 1245 Inconel 625 0.04 0.2 0.01 <0.01 0.4 0.4 1246 Incoloy 800 0.08 0.9 0.02 <0.01 0.1 0.5 1247 Incoloy 825 0.02 0.4 0.02 <0.01 0.3 1.6

SRM Ni Cr Mo Co Ti Al Nb Ta Fe W B

1197 32.6 12.9 3.25 (0.07) 2.32 0.41 (<0.02) Zr0.15 41.9 6.08 (0.0059)

SI 198 40.1 12.9 6.08 0.70 2.59 0.24 (<0.02) Zr(0.014) 36.2 (0.2) (0.0064)

45.7 20.7 9.1, 0.56 «0.01) (<0.02) 23.2 (0.15)

SI 199 10.2 19.9 «0.02) 51.6 «0.01) (<0.02) 0.65 15.4

20.0 19.9 4.00 42.0 (0.03) 3.1 8 1.08 3.19 3.8 6

1206-2 53.3 19.7 10.30 11. 5, 2.94 1.74 0.46

1207-1 56.1 18.88 4.50 13.0, 3.09 1.26 2.22

1207-2 55.7 19.44 4.34 13.50 2.54 1.3, 2.09

1208-1 51.9 17.5 3.24 0.82 0.46 (0.15) 5.3 8 (0.012) 19.2

1208-2 51.5 17.4 3.13 0.76 (0.8 5 ) (0.8 5

) 4.9 S (0.012) 19.8

1244 72.6 16 0.2 0.06 0.3 0.3 0.1 9 <0.01 1245 60 22 8.7 0.1 0.3 0.3 3.5 4 <0.01 1246 30 20 0.3 0.08 0.3 0.3 0.1 47 <0.01 1247 43 23 2.7 0.08 0.7 0.06 0.4 27 <0.01

Values in parentheses are not certifed, but are given for information only.

33
Tool Steels

Chemical Composition (Nominal Weight Percent)

SRM Type Mn Si Cu Cr V Mo W Co

436 Special (Cr6-Mo3-W10) 0.21 0.32 0.075 6.02 0.63 2.80 9.7 437 837 D837 Special (Cr8-Mo2-W3-Co3) 0.48 0.53 7.79 3.04 1.50 2.8 2.9 438 Mo High Speed (AISI-SAE-M30) 0.20 0.17 0.17 4.66 1.17 8.26 1.7 4.9 439 Mo High Speed (AISI-SAE-M36) 0.18 0.21 0.12 2.72 1.50 4.61 5.7 7.8 440 840 D840 Special W High Speed (Cr2-W13-Col2) 0.15 0.14 0.059 2.12 2.11 0.070 13.0 11.8 441 D841 W High Speed (AISI-SAE-T1) 0.27 0.16 0.072 4.20 1.13 0.84 18.5

SRM Type C Mn P S Si Cu Ni Cr V Mo W Co

1157 Tool (AISI M2) 0.836 0.34 0.011 0.004 0.18 0.088 0.228 4.36 1.82 4.86 6.28 0.028
Steelmaking Alloys

These SRM's provide standards of known chemical composition primarily for checking chemical methods of

analysis for the major constituents and for selected minor elements covered by ASTM specifications. They

are furnished as fine powders (usually <0. 1 mm). These SRM's are finding increased use in calibration with

instrumental methods of analysis.

Chemical Composition (Nominal Weight Percent)

SRM Type

Wt/Unit

(grams) C Mn P S Si Cu Ni o

57a Refined Silicon 60 0.024 0.015 0.003 0.003 98.55 0.004 0.008 (-0.3)

58a Ferrosilicon (73% Si) 75 0.014 0.16 0.009 <0.002 73.20 0.024 0.012 (0.20)

59a Ferrosilicon (50% Si) 50 0.046 0.75 0.016 0.002 48.10 0.052 0.033

195 Ferrosilicon (75% Si)

Hi-Purity

75 0.034 0.17 0.02 <0.002 75.3 0.047 0.032 0.42

64c Ferrochromium (HC) 100 4.68 0.16 0.020 0.067 1.22 0.005 0.43

196 Ferrochromium (LC) 100 0.035 (0.282) 0.020 0.003 0.373

71 Calcium Molybdate 60

90 Ferrophosphorus 75 26.2

340 Ferroniobium 100 0.061 1.70 0.036 4.39 Sn 0.063

68c Ferromanganese (HC) 100 6.72 80.04 0.19 0.008 0.225

689 Ferrochromium Silicon 100 0.043 0.32 0.026 0.002 39.5 0.013 0.20 (0.06)

SRM Cr V Mo Ti Al Nb Zr Ca Fe B As

57a 0.024 0.013 Pb<0.001 0.040 0.47 0.002 0.17 0.50 0.001 <0.001

58a 0.020 (0.002) (0.01) 0.051 0.95 Co<0.01 0.002 0.30 25.23 0.0010

59a 0.08 0.35 0.042 50.05 0.058

195 0.047 (0.001) (0.01) 0.037 0.046 Co<0.01 (<0.02) 0.053 23.6 0.001 (0.0024)

64c 68.00 0.15 0.02 Co0.051 N0.045 24.98

196 70.83 (0.12)

71 35.29 0.063 1.92 90

340 0.89 57.51 Ta3.73

68c 0.074 12.3 0.021

689 36.4 0.09 Pb(0.004) 0.40 0.049 CoO.034 Bi(<0.003) N(0.002) 23.2 0.0017 (0.009)

Values in parentheses are not certified, but are given for information only.

35
Cast Irons (Chip Form)

This group of cast iron SRM's is similar to the chip-form steels and was prepared for use in checking

chemical methods in the cast iron industry. These SRM's are furnished in 150-g units (unless otherwise noted)

in the form of chips usually sized between 0.7 to 1.2 mm. They are prepared by lathe cutting of chips with a multiple-tooth cutting tool from thin-wall cylindrical castings especially made for this purpose. SRM's 890,

891, and 892 are provided in the form of granules/powders. Supplied with each SRM is a Certificate of

Analysis listing the chemical composition determined at NBS and other laboratories that cooperated in the

certification of the SRM's. For SRM 365, Electrolytic Iron, the Certificate provides information on these

additional elements: W, Nb, Ag, Zn, Ge, O, H, Ta, Nd, Zr, Sb, Bi, Ca, Mg, Se, Te, Ce, La, Pr, Au, Hf, and

Fe.

Chemical Composition (Nominal Weight Percent)

SRM Type C Mn P S Si Cu

Total Graphitic Grav Comb

3d White (110 g) 2.54 0.40 0.025 0.052 1.31 0.043

4k Cast 3.2, 2.65 0.82 5 0.149 0.043 1.33 0.24,

5L Cast 2.60 1.98 0.68 0.2804 0.124 1.82 1.01 6g Cast 2.85 2.01 1.05 0.557 0.124 1.05 0.502

7g Cast (High Phosphorus) 2.69 2.59 0.612 0.794 0.061 0.060 2.41 0.128

82b Cast (Ni-Cr) 2.85 2.37 0.745 0.025 0.007 2.10 0.038

107c Cast (Ni-Cr-Mo) 2.99 1.98 0.480 0.079 0.059 1.21 0.205

115a Cast (Cu-Ni-Cr) 2.62 1.96 1.00 0.086 0.064 0.065 2.13 5.52

122h Cast (Car Wheel) 3.52 2.82 0.543 0.311 0.072 0.513 0.028

334 Gray Cast 2.83 (2.3) (0.82) (0.14) 0.043 (1.3) (0.24)

338 White Cast 3.33 (0.76) (0.054) 0.015 (1.82) (0.27)

341 Ductile 1.81 1.23 0.92 0.024 0.007 0.007 2.44 0.152

342a Nodular 1.86 1.38 0.274 0.019 0.006 2.73 0.135

365 Electrolytic Iron 0.0068 0.0056 0.0025 0.0055 0.0080 0.0058

890 High Alloy White Cast

(HC0259+V)

2.91 0.62 0.025 0.015 0.67 0.055

891 High Alloy White Cast

(Ni-Hard, Type I)

2.71 0.55 0.038 0.029 0.56 0.150

892 High Alloy White Cast

(Ni-Hard, Type IV)

3.33 0.76 0.054 0.015 1.83 0.270

36
(Continued)

SRM Ni Cr V Mo Co Ti

3d 0.025 0.03 (0.002) (0.007) (0.003)

4k 0.042 0.116 0.024 0.040 Zn(<0.001) (0.03)

5L 0.086 0.148 0.034 0.020 0.050

6g 0.135 0.370 0.056 0.035 0.059

7g 0.120 0.048 0.010 0.012 0.044

82b 1.22 0.333 0.027 0.002 0.027

107c 2.20 0.693 0.015 0.83 0.19

115a 14.49 1.98 0.014 0.050 0.020

122h 0.078 0.052 0.041 (0.003) 0.034

334 (0.04) (0.12) (0.025) (0.040) (0.03)

338 (5.5) (10.2) (0.04) (0.32)

341 20.32 1.98 0.012 0.010 0.018

342a 0.06 0.058 0.006 0.020

365 0.041 0.0072 0.0006 0.0050 0.007, 0.0006

890 0.397 32.4 0.45 0.018 (0.03)

891 4.48 2.23 0.039 0.27 0.19 (0.01)

892 5.53 10.18 0.041 0.20 0.31 (0.02)

SRM As Sn Al

(total)

Mg N Fe

3d

4k (0.03) (0.004) (0.004) Sb(<0.001) (0.0016) Pb( 0.001)

5L 0.005

6g 0.042 0.005

7g 0.014 0.004

82b

107c

115a

122h

334 (0.03) (0.004) (0.004) (0.0017)

338

341 0.068

342a 0.070

365 (0.0002) - (0.0002) (0.0007) Pb0.000019 0.001 99.90

890 (0.008) «Q.01) (0.089) (61.8)

891 (0.004) (<0.01) (0.008) (0.012) (88.5)

892 (0.006) (0.02) (0.009) (0.019) (77.4)

Values in parentheses are not certified, but are for information only.

37
Cast Steels, White Cast Irons, Ductile Irons and

Blast Furnace Irons (Solid Form)

These chill-cast SRM's were prepared for use in analytical control of cast steels and cast irons by rapid

instrumental methods. Although employed in x-ray spectroscopic analysis, they are particularly useful for

calibrating vacuum optical emission spectrometers because they permit the determination of carbon,

phosphorus, and sulfur in addition to the metallic elements.

The "benchmark" concept was used in preparing three new white irons (1 145, 1 146, and 1 150) with

compositions tailored to provide low, nominal, and high values for elements normally specified in cast iron

materials, as well as most malleable, ductile, and grey irons. A concentration range for a number of trace

elements of interest was provided to enhance the utility of the standards. The planning, preparation,

homogeneity testing, and analysis of these SRM's were done through a cooperative Industry-ASTM-NBS

program.

These SRM's are chill-cast sections. Details of the preparation and intended use of the SRM's are given in NBS Miscellaneous Publication 260-1.

Chemical Composition (Nominal Weight Percent)

SRM Type C Mn P S Si Cu Ni Cr

1138a Cast Steel (No. 1) 0.11 0.35 0.035 0.056 0.25 0.09 0.10 0.13

1139a Cast Steel (No. 2) 0.790 0.92 0.012 0.013 0.80 0.47 0.98 2.1,

1143a Blast Furnace ( 1

)

4.08 0.296 0.164 0.067 1.60 0.1

3

8 0.11 6 0.1 63 1144a Blast Furnace (2) 4.32 1.23 0.084 0.083 0.1

8

2 0.09, O.O63 0.029

1145 White Cast Iron 2.85 0.040 0.24 0.21 0.29 0.52 0.59 0.67

1146 White Cast Iron 2.01 1.64 0.55 0.022 3.68 1.49 3.01 2.56

1150 White Cast Iron 3.48 0.81 0.063 0.070 1.24 0.092 0.074 0.95

CI 173 Cast Steel 3 0.453 0.174 0.031 0.092 1.38 0.204 4.04 2.63

1173 Ni-Cr-Mo-V Steel 0.423 0.19 0.033 0.092 1.28 0.204 4.06 2.70

SRM V Mo Ti As Al Te Co

1138a 0.020 0.05 (0.0012) (<0.005) (0.067)

1139a 0.26 0.51 (0.004) (<0.005) (0.13)

1143a 0.018 (0.004) 0.08 7 (0.003) (0.008) 0.01 6 1144a 0.02 5 ( 0.007) 0.32 (0.004) (<0.005) 0.022 1145 0.11 0.48 0.017 0.058

1146 0.20 1.51 0.20 0.13

1150 0.034 0.074 0.045 0.014

CI 173 0.42 1.46 0.037 (0.02) (0.005) 0.064

1173 0.42 1.50 (0.015) Nb(0.045) 0.076

Values in parentheses are not certified, but are given for information only.

38
These SRM's provide materials of known composition for checking the performance of chemical methods of

analysis and in calibration with instrumental methods. The aluminum-, magnesium-, and zinc-base alloys are furnished as approximately 0.4 to 1.4 mm chips prepared by cutting thin wall castings or wrought bar stock.

Certificates of Analysis provided with these standards give the composition as determined at NBS, and most

give values obtained by industrial and other outside laboratories cooperating in certification of the standards.

Aluminum-Base Alloys

Chemical Composition (Nominal Weight Percent)

SRM Type

Wt/Unit

(grams) Mn Si Cu Ni Cr V

85b Wrought (Chip) 75 0.61 0.1 8 3.99 0.084 0.211 0.006

87a Al-Si (Chip) 75 0.26 6.24 0.30 0.57 0.11 <0.01 855 Casting Alloy 356 (fine millings) 30 0.057 7.17 0.13 0.015 0.013

856 Casting Alloy 380 (fine millings) 30 0.35 9.21 3.51 0.37 0.055

858 Alloy 6011 (modified) (fine millings) 35 0.48 0.79 0.84 0.0006 0.0011 0.0030

859 Alloy 7075 (fine millings) 35 0.078 0.17 1.59 0.063 0.176 0.0082

SRM Ti Sn Ga Fe Pb Mg Zn Be

85b 0.022 0.019 0.24 0.021 1.49 0.030

87a 0.18 0.05 0.02 0.61 0.10 0.37 0.16

855 0.15 0.010 0.16 0.015 0.37 0.083

856 0.068 0.10 0.92 0.10 0.061 0.96

858 0.042 0.078 1.01 1.04 <0.0001

859 0.041 2.45 5.46 0.0026

Copper-Base Alloys

SRM's 871, 872, 874, 875, 879, and 880 are fine granules produced by a water atomization technique for use primarily in checking chemical methods of analysis. The homogeneity of these materials is exceptionally

high, and for certain alloys such as SRM 872, Phosphor Bronze (CDA 544), it is the only form that can

readily be prepared to exhibit acceptable homogeneity. For many alloys (for which homogeneity

requirements can be met) both granules (or chips) for chemical analysis and solids for optical emission and

x-ray fluorescence methods, are desirable.

Chemical Composition (Nominal Weight Percent)

Wt/Unit

SRM Type (grams) Cu Ni Fe Zn Pb

37e Brass, Sheet 150 69.61 0.53 0.004 27.85 1.00

158a Bronze, Silicon 150 90.93 0.001 1.23 2.08 0.097

871 Bronze, Phosphor (CDA 521) 100 91.68 <0.001 0.025 0.010

872 Bronze. Phosphor (CDA 544) 100 87.36 0.003 4.0 4.13

874 Cupro-Nickel, 10% (CDA 706)"High-Purity" 100 88.49 10.18 1.22 0.002 <0.0005

875 Cupro-Nickel, 10% (CDA 706) "Doped" 100 87.83 10.42 1.45 0.11 0.0092

879 Nickel Silver (CDA 762) 100 57.75 12.11 0.0020 30.04 0.002

880 Nickel Silver (CDA 770) 100 54.51 18.13 0.004 27.3 0.002

1034 Unalloyed Copper rod (99.96) (0.6) (2.0) «H) (0.5)

1035 **Leaded-Tin Bronze Alloy 50 (78.5) (0.75) (0.001) (0.25) (13.5)

39
Copper Base Alloys (Continued)

SRM Mn Sb Sn Cr P Ag Si Ai Te Cd Se

37e 1.00

158a 1.11 0.96 0.026 3.03 0.46

871 8.14 0.082

872 4.16 0.26

874 0.0020 <0.001 0.007 0.002 (0.0006) <0.0002 0.00015

875 <0.0007 <0.001 0.009 0.0020 (0.0008) 0.0022 0.0004

879 <0.001

880 <0.001

1034 «0.1) (0.2) «0.2) (0.3) (8.1) «2) «2) (0.5) «1) (3.3)

1035 (6.8)

SRM Bi O Co C Au H S As Mg Ti

37e

158a

871

872

874 <0.0002 (0.06) (0.0023) (0.0016) (0.0011) (<0.0006) (0.0002) (0.0001)

875 0.003 (0.14) (0.0035) (0.004) (0.0011) (0.0010) (0.0010) ( <0.0002

)

879

880

1034 (0.2) (363) (0.02) (<0.05) 2.8 (0.2) «1)

1035 0.64 22.3 P 0.004

Values in parentheses are not certified, but are given for information only.

*Values for SRM 1034 are ppm by weight.

**Sulfur value for SRM 1035 is ppm by weight.

One casting provides a grid of seventy-two rough disks for SRM CI 146a, White Cast

Iron.

40
Copper "Benchmark"

The copper "benchmark" standards were prepared in a cooperative Industry-ASTM-NBS program and were

designed primarily for use in calibration with optical emission methods of analysis. They should also serve in

the development of other methods of trace analysis. Twelve different compositions are issued as 25 SRM's.

Cu "0" and Cu XI are issued in chip form only. Cu IV is available only in rod form 6.6 mm in diameter and

103 mm long. Cu I, II, III, V, VI, and VII are available both as chips and as rods 6.35 mm in diameter and

103 mm long. Cu VIII, IX, and X are issued as chill-cast and unidirectionally solidified blocks 32 mm square

and 19 mm thick. Cu VIII-Cu X are phosphorized copper containing a nominal concentration range from

about 10 to 500 ppm for the same 20 trace elements contained in the other copper "benchmark" SRM's, plus

five to eight additional elements. These SRM's are also applicable for x-ray fluorescence methods of analysis

and, because of deliberate additions of gold and silver (in ratios of 1 to 4), for calibration of fire assay

equipment.

Chemical Composition (Nominal Parts Per Million by Weight)

SRM Type

Wt/Unit

(grams) Sb As Bi Cr Co Fe Pb Mn

393 Unalloyed--Cu "0" 50 0.25 0.41 <0.1 <0.5 0.02 <1 0.039 <0.01 394 Unalloyed--Cu I 50 4.5 2.6 0.35 2.0 0.5 147 26.5 3.7 395 Unalloyed--Cu II 50 8.0 1.6 0.50 6.0 0.3 96 3.25 5.3 396 Unalloyed--Cu III 50 <1 <0.2 0.07 4.3 0.4 143 0.41 7.5 398 Unalloyed--Cu V 50 7.5 25 2.0 (0.3) 2.8 11.4 9.9 (0.3)

399 Unalloyed--Cu VI 50 30 47 10.5 (0.5) 0.5 20.0 114 (0.3)

400 Unalloyed--Cu VII 50 102 140 24.5 (0.5) 0.6 41 128 (0.2)

454 Unalloyed--Cu XI 35 24 46 19 (4) (50) 66

SRM Cu(Wt%) Ni Se Ag S Te Sn Zn Al Cd Au Mg

393 99.998 0.05 <0.05 0.10 <1 <0.5 <0.1 <0.1 <0.1 <0.1 <0.05 <0.1 394 99.908 11.7 2.1 50.5 15 0.57 70 405 «2) (0.5) (0.07) «1)

395 99.944 5.4 0.60 12.2 13 0.32 1.5 12.2 ( 2) (0.4) (0.13) ( 1) 396 99.955 4.2 0.50 3.30 9.5 <0.1 0.8 5.0 «2) (0.6) (<0.05) ( 1) 398 99.98 7.0 14 20.1 (11) 11 4.8 24 «2) (22) (0-1) ( 1)

399 99.79 506 (-95) 116.8 (10) (-50) (-90) 45 «2) ( 1) (4) «1)

400 99.70 603 (-250) 181 (9) (-155) (-200) 114 «2) «D (10) (<D

454 99.84 (150) 400 286 2.2 7 7.5

Values in parentheses are not certified, but are given for information only.

SRM O Si Be B Ca Li Pa P Ti Zr

393 <0.5 <0.01 <0.01 <0.05 <0.01 ;0.05 <0.05 <0.5 <0.5 394 (230) «2)

395 (435) «2)

396 (270) «2)

398 (30) «2)

399 (950) «2)

400 (1025) «2)

454

Values in parentheses are not certifed, but are given for information only.

41
Lead-Base Alloys

Chemical Composition (Nominal Weight Percent)

SRM Type

Wt/Unit

(grams)

(Other

Forms) Cu Ni As Sn Sb Bi Fe

53e Bearing Metal (84Pb-10Sb-6Sn) 150 1132 0.054 0.003 0.057 5.84 10.26 0.052 <0.001

127b Solder (40Sn-60Pb) 150 1131 0.011 0.012 0.01 39.3 0.43 0.06 AgO.Ol

Magnesium-Base Alloys

Chemical Composition (Nominal Weight Percent)

SRM Type

Wt/Unit

(grams) Mn Si Cu Ni Al Pb Fe Zn

171 Alloy 100 0.45 0.0118 0.0112 0.0009 2.98 0.0033 0.0018 1.05

Nickel-Base Alloys

Chemical Composition (Nominal Weight Percent)

SRM Type

Wt/Unit

(grams) C Mn P S Si Cu Ni Cr

349 Ni57-Cr20 150 0.08 0.43 0.002 <0.01 0.29 0.006 57.15 19.50

882 Ni66-Cu31-A13 150 0.006 0.0007 0.0014 0.006 31.02 65.25

864 Inconel, 600 0.06 0.3 <0.01 <0.01 0.1 0.3 72.6 16

865 Inconel, 625 0.04 0.2 0.01 <0.01 0.4 0.4 60 22

866 Incoloy, 800 0.08 0.9 0.02 <0.01 0.1 0.5 30 20

867 Incoloy, 825 0.02 0.4 0.02 <0.01 0.3 1.6 43 23

SRM V Mo W Co Ti Al B Fe Nb Ta Zr

349 0.081 4.04 <0.01 13.95 3.05 1.23 0.0046 0.13 <0.01 <0.01 0.081

882 0.57 2.85 0.009

864 0.2 0.06 0.3 0.3 <0.01 9 0.1

865 8.7 0.1 0.3 0.3 <0.01 4 3.5

866 0.3 0.08 0.3 0.3 <0.01 47 0.1

867 2.7 0.08 0.7 0.06 <0.01 27 0.4

42
Trace Elements in Nickel-Base Superalloy

The Gas Turbine Panel of the ASTM-ASME-MPG Joint Committee, through recommendation of its Task

Force on Trace Elements in Superalloys, prepared a set of three "Tracealloy" materials, which have the

same common matrix. These were given to NBS for "definitive analysis" of: Pb, Bi, Se, Te, and Tl; trace

elements that vary over the concentration range of interest. These SRM's 897, 898, and 899 are in the form of

fine particles.

Nominal Trace Composition (Parts Per Million by Weight)

SRM Type Pb Bi Se Te Tl

897 "Tracealloy" A 11.7 (0.5) 9.1 1.05 0.51 898 "Tracealloy" B 2.5 (1.0) 2.00 0.54 2.75

899 "Tracealloy" C 3.9 (0.3) 9.5 5.9 0.252

Approximate Base Composition (Weight Percent)

C Cr Co Ni W Nb Al Ti B Zr Ta Hf

897 (0.12) (12.0) ( 8.5) (Bal) (1.75) (0.9) (2.0) (2.0) (0.010) (0.10) (1.75) (1.2)

898 (0.12) (12.0) ( 8.5) (Bal) (1.75) (0.9) (2.0) (2.0) (0.010) (0.10) (1.75) (1-2)

899 (0.12) (12.0) ( 8.5) (Bal) (1.75) (0.9) (2.0) (2.0) (0.010) (0.10) (1-75) (1.2)

Values in parentheses are not certified, but are given for information only.

Nickel Oxide

The nickel oxide SRM's are available primarily for application in the electronics industry to the analysis of

cathode grade nickel. The "Standard Method for Spectrochemical Analysis of Thermionic Nickel Alloys by

the Powder-DC Arc Technique." ASTM Designation El 29, is based on calibration with these standards. The

values given are for the percentage of the element in nickel oxide.

Chemical Composition (Nominal Weight Percent)

SRM Type

Wt/Unit

(grams) Mn Si Cu Cr Co Ti Al Fe Mg

671 Oxide 1 25 0.13 0.047 0.20 0.025 0.31 0.024 0.009 0.39 0.030

672 Oxide 2 25 0.095 0.11 0.018 0.003 0.55 0.009 0.004 0.079 0.020

673 Oxide 3 25 0.0037 0.006 0.002 0.0003 0.016 0.003 0.001 0.029 0.003

Nominal Trace Composition (Parts Per Million by Weight)

SRM Pb Se Bi As Sn Sb Cd Ga Ag Te Tl Zn

671 16 2.0 0.07 (59) (2.7) (0.4) (0.7) (0.8) (0.5) «0.2) «0.1) (160)

672 38 0.40 0.3 (74) (4) (0.5) (1.7) (0.4) (0.3) «0.2) «0.1) (140)

673 3.5 0.2 0.06 (0.4) (<0.5) (<0.05) (0.05) «o.i) (<0.1) (0.4) «0.1) (1.7)

Values in parentheses are not certified, but are given for information only.

43
Selenium

SRM Type

Wt/Unit

(grams)

Chemical Composition (Nominal Parts Per Million)

Mn S Cu Ni Cr V Mo Co As Sn

726 Selenium, Intermediate Purity 450 <0.3 12 <1 <0.5 <1 N.D. <0.3 N.D. <2 <1

SRM Al B Pb Bi Ag Ca Mg Te Fe Be Cd In

726 <1 <1 <1 N.D. <1 <1 <1 0.3 1 N.D. N.D. N.D.

N.D.=Not detected at limits of detection of <0.3 ppm.

Tin-Base Alloys

Chemical Composition (Nominal Weight Percent)

Wt/Unit

SRM Type (grams) Pb Sn Sb Bi Cu Fe As Ag Ni

54d Bearing Metal 170 0.62 88.57 7.04 0.044 3.62 0.027 0.088 0.0032 0.0027

Titanium-Base Alloys

Chemical Composition (Nominal Weight Percent)

SRM Type

Wt/Unit

(grams) C Mn Cu Mo Sn Al Fe N

173b 6A1-4V (IN PREP)

176 5Al-2.5Sn 100 0.015 0.0008 0.003 0.0003 2.47 5.16 0.070 0.010

650 Unalloyed (IN PREP)

651 Unalloyed (IN PREP)

652 Unalloyed (IN PREP)

44
Zinc-Base Alloys

Chemical Composition (Nominal Weight Percent)

SRM Type

Wt/Unit

(grams) Mn Cu Ni Sn Al Cd Fe Pb Ag

94c Die Casting

Alloy

150 0.014 1.01 0.006 0.006 4.13 0.002 0.018 0.006 Mg 0.042

728 Zinc 450 0.00057 (0.000002) 0.000115 0.00027 0.00111 0.00011

Zirconium-Base Alloys

Chemical Composition (Nominal Parts Per Million)

SRM Type

Wt/Unit

(grams) c Mn Si Cu Ni Cr Ti Sn(Wt%) Fe N U

360a Zircaloy-2 100 136 3 51 140 554 1060 27 1.42 1441 43 0.15

Nonferrous Alloys (Solid Form)

These SRM's are designed to fill the basic needs of the nonferrous primary and secondary metals industries

for analytical control, primarily with optical emission and x-ray spectroscopic methods. Both nominal

chemical composition and analytical range SRM's have been prepared for many of the commercially

important nonferrous alloy systems.

Aluminum "Benchmark"

Aluminum "benchmark" standards were prepared in a cooperative Industry-ASTM-NBS program. These

SRM's are intended for use primarily in optical emission and x-ray spectrometric methods of analysis. These

materials are also available in the form of chips, for checking chemical methods of analysis (see page 39).

Chemical Composition (Nominal Weight Percent)

SRM Type Size Si Fe Cu Mn Cr Ni Zn Mg Be

1258 Alloy 6011 35mm D X

19mm thick

0.78 0.079 0.84 0.48 0.0011 0.0006 1.03 0.98 <0.0001

1259 Alloy 7075 35mm D X

19mm thick

0.18 0.205 1.60 0.079 0.173 0.063 5.44 2.48 0.0025

45
Copper-Base Alloys

A number of copper-base alloy SRM's were prepared to provide for analytical control by rapid instrumental

methods in the copper industry. These SRM's are for calibration of optical emission and x-ray spectroscopic

equipment. Eight groups were prepared in two forms: chill-cast (with "C" prefix) for the producer (blocks,

31 mm square, 19 mm thick), and wrought for the consumer (disks, 31 mm in diameter and 19 mm thick).

Both forms have nearly identical chemical compositions. Consequently, when the supply of one form is exhausted, the other is the recommended replacement. For each of the eight principal copper-base alloys,

three SRM's were prepared to comprise a "nominal-composition," and both a low- and high-composition

standard. To make the cartridge-brass SRM's more widely applicable, a number of trace elements were

purposely added and certified. The beryllium copper SRM's are representative of the nominal chemical

composition of three Copper and Brass Research Association (CABRA) alloy designations.

Chemical Composition (Nominal Weight Percent)

SRM Type Cu Zn Pb Fe Sn Ni Al Sb

1102 Cartridge Brass C 72.85 27.10 0.020 0.011 0.006 0.005 0.007 0.005

1103 Free-Cutting Brass A 59.27 35.72 3.73 0.26 0.88 0.15

CI 104 Free-Cutting Brass B 61.33 35.31 2.77 0.088 0.43 0.070

1106 CI 106 Naval Brass A 59.08 40.08 0.032 0.004 0.74 0.025

1107 CI 107 Naval Brass B 61.21 37.34 0.18 0.037 1.04 0.098

1108 C1108 Naval Brass C 64.95 34.42 0.063 0.050 0.39 0.033

1109 CI 109 Red Brass A 82.2 17.43 0.075 0.053 0.10

1110 CI 1 10 Red Brass B 84.59 15.20 0.033 0.033 0.051 0.053

1111 Cllll Red Brass C 87.14 12.81 0.013 0.010 0.019 0.022

1112 CI 112 Gilding Metal A 93.38 6.30 0.057 0.070 0.12 0.100

1113 CI 1 13 Gilding Metal B 95.03 4.80 0.026 0.043 0.064 0.057

1114 CI 1 14 Gilding Metal C 96.45 3.47 0.012 0.017 0.027 0.021

1115 CI 115 Commercial Bronze A 87.96 11.73 0.013 0.13 0.10 0.074

1116 CI 1 16 Commercial Bronze B 90.37 9.44 0.042 0.046 0.044 0.048

1117 CI 1 17 Commercial Bronze C 93.01 6.87 0.069 0.014 0.021 0.020

1118 CI 1 18 Aluminum Brass A 75.1 21.9 0.025 0.065 2.80 0.010

1119 CI 1 19 Aluminum Brass B 77.1 20.4 0.050 0.030 2.14 0.050

1122 CI 122 Beryllium Copper CA-170 97.45 (0.01) (0.003) 0.16 (0.01) (0.01) 0.17

CI 123 Beryllium Copper CA-175 97.10 0.01 (0.001) 0.04 (0.01) (0.01) 0.02

1275 Cupro-Nickel (CDA 706) 88.2 0.085 0.006 1.46 0.008 9.76 0.0005

1276 Cupro-Nickel (CDA 715) 67.8 0.038 0.004 0.56 0.023 30.5 0.0004

46
Copper Base Alloys (Continued)

SRM As Be Bi Cd Mn P Si Ag

1102 0.004 0.00003 0.0005 0.0045 0.0045 0.0048 (0.002) 0.0010

1103 0.003

CI 104 0.005

1106 CI 106 0.005

1107 CI 107

1108 CI 108 0.025

1109 CI 109 0.006

1110 CI 1 10

1111 Cllll

1112 CI 1 12 0.009

1113 CI 1 13 0.008

1114 CI 1 14 0.009

1115 CI 1 15 0.005

1116 CI 116 0.008

1117 CI 1 17 0.002

1118 CI 1 1

8

0.007 0.13 0.0021

1119 CI 1 19 0.040 0.070 0.0015

1122 CI 122 1.75 (0.004) (0.004) 0.17 (0.005)

CI 123 0.46 (0.002) (0.002) 0.03 (0.009)

1275 (0.001) (<0.001) 0.0003 0.42 0.005 (0.001) (0.004)

1276 (<0.001) (<0.0001) 0.0002 1.01 0.006 (0.001) (0.004)

Values in parentheses are not certified, but are given for information only.

SRM Te Co Cr Se Mg B s Ti

1102 0.0003

CI 103

CI 104

1106 CI 106

1107 CI 107

1108 C1108

1109 CI 109

1110 CI 1 10

1 1 1 1 Cllll

1112 CI 1 12

1113 CI 1 13 1114 CI 1 14 1115 CI 1 15 1116 CI 1 16

1117 CI 1 17

1118 CI 1 18 1119 CI 1 19 1122 CI 122 0.220 (0.002)

CI 123 2.35 (0.001)

1275 (0.0002) 0.024 (0.0002) 0.0004 0.003 (0.0009) (0.008) (0.0002)

1276 (0.0002) 0.045 (0.0002) 0.0005 0.12 (0.0001) (0.008) (0.0002)

47
Copper"Benchmark"

The copper "benchmark" standards were prepared in a cooperative Industry-ASTM-NBS program and were

designed primarily for use in calibration with optical emission methods of analysis. They should also serve in

the development of other new or improved trace methods of analysis. Twelve different compositions are

issued as 25 SRM's Cu "O" and Cu XI is issued in chip form only. Cu IV is available only in rod form 6.60

mm in diameter and 103 mm long. Cu I, II, III, V, VI, and VII are available both as chips and as rods 6.35

mm in diameter and 103 mm long. Cu VIII, IX, and X are issued as chill-cast and unidirectionally solidified

blocks 32 mm square and 19 mm thick, Cu VIII-Cu X are phosphorized copper containing a nominal

concentration range from about 10 to 500 ppm for the same 20 trace elements contained in the other copper

"benchmark" SRM's, plus five to eight additional elements. These SRM's are also applicable for x-ray

fluorescence methods of analysis and, because of deliberate additions of gold and silver (in ratios of 1 to 4),

for calibration of fire assay equipment.

Chemical Composition (Nominal Parts Per Million)

SRM Type Form Cu(Wt%) Sb As Bi Fe

494 Unalloyed—Cu I rod 99.91 4.5 2.6 0.35 ( -155)

495 Unalloyed—Cu II rod 99.94 8.0 1.6 0.50 ( -100)

496 Unalloyed—Cu III rod 99.95 <1 <0.2 0.07 ( -150)

457 Unalloyed—Cu IV rod 99.96 0.2 0.2 0.2 2.0 498 Unalloyed—Cu V rod 99.98 7.4 25 2.0 11

499 Unalloyed—Cu VI rod 99.79 30 47 10.5 21 500 Unalloyed—Cu VII rod 99.70 100 140 25 42

C1251 Unalloyed—Cu VIII disk 99.96 12.6 (8) (3) (10)

C1252 Unalloyed—Cu IX disk 99.89 42 124 20 (40)

C1253 Unalloyed—Cu X disk 99.42 (132) 244 70 (300)

SRM Pb Mn Ni Se Ag Te Sn Zn

494 26.5 3.7 11.7 2.1 50 0.6 70 400

495 3.2 5.3 5.4 0.6 12.2 0.3 1.5 12 496 0.4 7.5 4.2 0.5 3.3 <0.1 0.8 5.0 457 0.5 <0.1 0.6 3.3 8.1 0.5 <0.2 <11

498 10 (0.3) 7.0 14 20.1 11 5 25

499 114 (0.3) 504 (-90) 114 (-50) (-90) 41

500 128 (0.2) 603 (-250) 176 (-155) (-200) 111 C1251 7.5 (7) 22 8.6 81.4 (12) (15) 8.3 C1252 60 (28) 128 46 166.6 (44) (124) 60

C1253 244 [-300] (500) 140 503 (193) (489) 368

48
Copper "Benchmark" (Continued)

SRM Al Cd Cr Co Au Mg O S

494 «2) . (0.5) 2.0 0.5 (0.07) «1) (230) 15 495 «2) (0.4) 6.0 0.3 (0.13) «1) (435) 13 496 «2) (0.6) 4.3 0.4 (<0.05) «1) (270) 9 457 «2) «1) (0.3) (0.2) (<0.05) «1) (360) (4)

498 «2) (22) (0.3) 2.7 (0.1) «D (30) (ID

499 «2) «1) (0.5) 0.5 (4) «1) (950) (10)

500 «2) «D (0.5) 0.5 (10) «1) (1025) (9)

C1251 [-5] [-3] 2.8 8.8 15.0 (10) [-120] (22)

C1252 [-40] [-15] 7.4 90 34.9 (20) [-150] (29)

C1253 [-160] [-60] (187) (510) 74.4 (80) [-85] (50)

Values in parentheses are not certified, but are given for information only.

Figures in brackets are qualitative estimates only.

Lead-Base Alloys

SRM 31.4

mm I)X 19

mm thick

Chemical Composition (Nominal Weight Percent)

Type Other Forms Cu Ni As Sn Sb Bi Ag Fe

1131 Solder Pb60-Sn40 127b 0.011 0.012 0.01 39.3 0.43 0.06 0.01 1132 Bearing Metal 53e 0.054 0.003 0.057 5.84 10.2 0.052 <0.001

wmwmammmmmMmmmmaammimammmmmmmmmmnm^mamsmit

Nickel-Base Alloys

SRM 31 mm

1)X 19 mm

thick

Chemical Composition (Nominal Weight Percent)

Type C Mn P S Si Cu Ni Cr Mo Co Fe

1159 Ni48, balance Fe 0.007 0.305 0.003 0.003 0.32 0.038 48.2 0.06 0.010 0.022 51.0

1160 Ni80, Mo4, balance Fe 0.019 0.550 0.003 0.001 0.37 0.021 80.3 0.05 4.35 0.054 14.3

49
Titanium-Base Alloys

SRM 31 mm Chemical Composition (Nominal Weight Percent)

Dx 19 mm

thick Type Mn Cr Fe Mo Al V

641 8Mn (A) 6.68

642 8Mn (B) 9.08

643 8Mn (C) 11.68

644 2Cr-2Fe-2Mo (A) 1.03 1.36 3.61 645 2Cr-2Fe-2Mo (B) 1.96 2XT7 2.38

646 2Cr-2Fe-2Mo (C) 3_43 2A4 \_U

654a* 6A1-4V (B) (<0.1) (0.20) (0.20) (<0.05) 6.3 4 3.9 5

*31 mm DX6.4 mm thick.

Values in parentheses are not certified, but are given for information only.

Zinc-Base Alloys

Zinc-base alloy SRM's are available ranging from very high-purity zinc to commercial materials such as spelter and die-casting alloy compositions. They are supplied as bar segments (disks) intended for calibrating

and checking optical emission and x-ray spectroscopic techniques. The certificate of analysis supplied with

each gives the chemical composition determined at NBS and values determined by other laboratories that

have cooperated in the certification of the SRM's. For high-purity zinc, see High-Purity Metals, page 52.

Chemical Composition (Nominal Weight Percent)

SRM Type Cu Al Mg Fe Pb Cd Sn Cr

625 Zinc-base A-ASTM AG 40A 0.034 3.06 0.070 0.036 0.0014 0.0007 0.0006 0.0128

626 Zinc-base B-ASTM AG 40A 0.056 3.56 0.020 0.103 0.0022 0.0016 0.0012 0.0395

627 Zinc-base C-ASTM AG 40A 0.132 3.88 0.030 0.023 0.0082 0.0051 0.0042 0.0038

628 Zinc-base D-ASTM AC 41

A

0.611 4.59 0.0094 0.066 0.0045 0.0040 0.0017 0.0087

629 Zinc-base E-ASTM AC 41

A

1.50 5.15 0.094 0.017 0.0135 0.0155 0.012 0.008

630 Zinc-base F-ASTM AC 41

A

0.976 4.30 0.030 0.023 0.0083 0.0048 0.0040 0.0031

631 Zinc spelter (modified) 0.0013 0.50 (<0.001) 0.005 (0.001) 0.0002 0.0001 0.0001

SRM Mn Ni Si In Ga Ca Ag Ge

625 0.031 0.0184 0.017

626 0.048 0.047 0.042

627 0.014 0.0029 0.021

628 0.0091 0.030 0.008'

629 0.0017 0.0075 0.078

630 0.0106 0.0027 0.022

631 0.00015 (<0.0005) (0.002) 0.0023 (0.002) <0.001 (<0.0005) (0.0002)

Values in parentheses are not certified, but are given for information only.

50
Zirconium-Base Alloys

SRM 31 mm Chemical Composition (Nominal Weight Percent)

^ /\ . i i i thick Type Hf C Cr Cu be TIM — Mn Mo VT" Ni N Si Ti W

1234 Unalloyed

Zirconium A

46 (80) (55) (<io) (240) ( 10) (2) (20) ( 14) (40) (20) (25)

1235 Unalloyed

Zirconium B

95 (I/O) (60) (80) (850) (25) (40) (65) (32) (95) (90) (50)

1236 Unalloyed

Zirconium C

198 (280) (250) (250) (1700) (45) (100) (140) (69) (205) (185) (140)

1237 Zircaloy D 31 (100) (1510) «10) (1650) (10) «10) (40) (19) (35) (30) (25)

1238 Zircalloy E 178 (310) (580) (60) (2500) (60) (120) (100) (72) (170) (100) (95)

1239 Zircalloy F 77 (1 70) (1055) (130) (2300) (50) (45) (45) (42) (95) (40) (45)

Values in parentheses are not certified, but are given for information only.

Gases in Metals

Certified for Hydrogen, Oxygen, and Nitrogen

The SRM's are used in the determination of hydrogen, oxygen and nitrogen by vacuum fusion, inert gas

fusion, and neutron activation methods. SRM's 1095 to 1099 were prepared from the same melt as the "1200"

series, (1261a-1265a), see page 26. —

SRM Type Form

Oxygen

(ppm)

Hydrogen

(ppm)

Nitrogen

(ppm)

352b Unalloyed titanium for hydrogen Platelets 50

354 Unalloyed titanium for hydrogen IN PREP

355 Unalloyed titanium Rod 3031

357 Unalloyed Zirconium Wire (1200) 19 358 Unalloyed Zirconium Wire (1100) 107 28

1086 Unalloyed Titanium Chips (1350) 116

1087 Unalloyed Titanium Chips (840) 57.5 1088 Unalloyed Titanium Chips (1450) 88.5 1090 Ingot iron Rod 491 (60)

1091 Stainless steel (AISI 431) Rod 131 (945)

1092 Vacuum-melted steel Rod 28 (4)

1093 Valve steel Rod 60 (4807)

1094 Maraging steel Rod 4.5 (71)

*1095 AISI 4340 steel Rod 9 (37)

*1096 AISI 94B17 (Mod)steel Rod 10.7 40.4

*1097 Cr-V (Mod)steel Rod 6.6 (41)

*1098 High Carbon (Mod)steel Rod 10 32

*1099 Electrolytic iron Rod 61 (13)

1089 Set of 5: 1095, 1096, 1097, 1098, and 1099 Rods

*Sold in sets as SRM 1089. Values in parentheses are not certified, but are given for information only.

51
High-Purity Metals

High-purity metal SRM's are available for purposes of determining impurity elements in high-purity metal

materials. They are intended to serve as benchmark standards in the calibration of methods and equipment.

They are also expected to be valuable to the development of new or improved methods and techniques for

increasing the sensitivity of detection for trace elements in various materials.

The Certificate of Analysis supplied with each SRM gives information on its chemical composition

and the values obtained by cooperating laboratories.

High-purity gold is available in both wire and rod form. The wire form (W), is intended for

applications such as spark source mass spectroscopic techniques. The low levels of impurities make it valuable in evaluating instrument and system blanks. The rod form (R), is intended for application in other

methods of characterization.

Platinum is available in wire form both as a high-purity material and as doped composition material.

Zinc is available in a high-purity and in a less pure version. Both were prepared from the same starting

material. The high-purity material is the result of further purification by vacuum distillation, zone refining,

and degasification. The zinc is supplied in the form of semi-circular bar segments.

SRM 769 is a set of five aluminum rods that have residual resistivity ratios, p(273 K)/p(4 K), ranging

from 130 to 1 1,000. This ratio can be a sensitive indicator of the purity of metals.

Chemical Compositions (Nominal Parts Per Million by Weight)

SRM Type Unit Size Cu Ni Sn Pb Sr

685W* High-Purity Gold (Wire) 1.4 mm D X 102 mm long 0.01 685R* High-Purity Gold (Rod) 5.9 mm Dx25 mm long 0.1 680aLl High-Purity Platinum (Wire) 0.51 mm D x 102 mm long 0.1 <1 <1 <0.1 680aL2 High-Purity Platinum (Wire) 0.51 mm Dx 1.0 m long 0.1 <1 <1 <0.1 681L1 Doped-Platinum (Wire) 0.51 mm D x 102 mm long 5.1 0.5 12 11

681L2 Doped-Platinum (Wire) 0.51 mm Dx 1.0 m long 5.1 0.5 12 11 682* High-Purity Zinc Semicircular segments 57 mm D 0.042 (0.02)

X 19 mm long

683* Zinc Metal Semicircular segments 57 mm D 5.9 (0.02) 11.1 769 Electrical Residual

Resistivity Ratio

6.4 mm Dx55 mm long

SRM Ag Mg In Fe O Pd Au Rh Ir Cd Ti

685W* [0.1] 0.007 0.3 [2]

685R* 1 0. 1 | 0.007 0.2 [<2]

680aLl <0.1 <1 1.3 4 0.2 <1 <0.2 <0.01 680aL2 <0.1 <1 1.3 4 0.2 <1 <0.2 0.01 681L1 2.0 12 5 7 6 9 9 11

681L2 2.0 12 5 7 6 9 9 11 682* (0.02) (0.1) (0.1)

683* 1.3 2.2 1.1 (0.2)

""Certificate gives upper limits for other elements found to be present.

Values in parentheses are not certified, but are given for information only.

Values in brackets are subject to greater error since only one method of analysis was employed.

52
Microanalytical

These SRM's provide a highly homogeneous material at microscopic spatial resolution. They are intended

primarily for use in calibration of quantitative electron probe, secondary ion mass spectrometry, spark

sources, mass spectrometry, and laser probe microanalytical techniques.

Mineral Glasses for Microanalysis

SRM 470 consists of two mineral glasses that have the following approximate compositions. Details of the

measurements on these glasses are in NBS Special Publication 260-74.

Composition (Nominal Weight Percent)

Glass Si02 FeO MgO CaO A12 03

K-411 55 15 15 15 K-412 45 10 20 15 10

Glasses for Microchemical Analysis

Each SRM, 1871 through 1875, consists of three glasses, two with and one without low-concentration

constituents. The major constituents of the glasses indicated below were selected so that the average atomic

numbers would be different.

SRM 1871 1872 1873 1874 1875

Composition

(Nominal Weight Percent)

PbO 71 59

Si02 29 49

GeO, 41 BaO 47

ZnO 4

B,0, 75

AI203 20

Li,0 5 p2 o5 80

MgO 9

Cartridge Brass

Cartridge Brass, SRM 478, consists of two specimens: a chill-cast cube with a polished chill-cast face and a wrought right circular cylinder. Both the cube and the cylinder are homogeneous at micrometer levels of

spatial resolution for both copper and zinc. Details of the homogeneity testing are in NBS Special

Publications 260-10 and 260-65.

Fe-Cr-Ni Alloy

The Fe-Cr-Ni alloy, SRM 479a, is a wafer characterized for chemical homogeneity of iron, chromium, and

nickel at the micrometer level of spatial resolution. It is satisfactory for use as a homogeneous material for

electron probe microanalysis. See NBS Special Publication 260-70 for details of the testing.

53
Tungsten-20% Molybdenum

The tungsten-20% molybdenum alloy, SRM 480, is a wafer with a core of tungsten-20% molybdenum wire

embedded in pure molybdenum onto which pure tungsten has been deposited by electroplating to provide a composite structure. Details on homogeneity characterization are given in NBS Special Publications 260-16

and 260-65.

Gold-Silver

Six color-coded wires comprise SRM 481. The wires consist of a high-purity gold and a high-purity silver

wire and four wires with nominal chemical composition differences in steps of 20 percent. See NBS Special

Publications 260-28 and 260-65.

Gold-Copper

Six color-coded wires comprise SRM 482, which is similar to the gold-silver set. In both sets special

precautions were taken to achieve homogeneity on a microscopic scale. See NBS Special Publications 260-28

and 260-65.

Iron-3.22% Silicon

The iron-3.22% silicon alloy SRM 483, is a platelet characterized for chemical homogeneity of iron and

silicon at the micrometer level of spatial resoltion. It is satisfactory for use as a homogeneous material for ^

electron probe microanalysis. See NBS Special Publications 260-22 and 260-65.

Chemical Composition (Nominal Weight Percent)

SRM Type Au Cu Ag W

Fe (by

Mo Si difference) Zn

478 Cartridge Brass (Cu-27% Zn) 72.8 5 27.1 0 479a Fe-Cr-Ni Alloy Crl8.1 Nil0.9 71.0

480 Tungsten-22% Mo Alloy 78.5 21.5

481 Au 100 A 100.00

Au-20% Ag B 80.5 19.96

Au-40% Ag C 60.5 39.92

Au-60% Ag D 40.03 59.93

Au-80% Ag E 22.43 77.58

Ag 100 F 100.00

482 Au 100 A 100.00

Au-20% Cu B 80. 1

5

19.83

Au-40% Cu C 60.36 39.64

Au-60% Cu D 40.10 59.92

Au-80% Cu E 20.12 79.85

Cu 100 F 100.00

483 Iron-3.22% Silicon 3.22 96.7-96.8

SRM Unit Size

470, 1871-1875 Rods: 1x1x15 mm

478 Cube: 6x6x6 mm; Rod: 6 mm D, 6 mm long

479a Plate: 4.6 mm D, 1 mm thick

480 Rod: 1 mm D, 1 mm long

481 and 482 Wire: 0.5 mm D, 50 mm long

483 Plate: 3 mmx3 mm X 0.28 mm thick

54
Primary, Working, and Secondary Chemicals

These SRM's are high-purity chemicals defined as primary, working, and secondary standards in accordance

with recommendations of the Analytical Chemistry Section of the International Union of Pure and Applied

Chemistry [Ref. Analyst 90, 251 (1965)]. These definitions are as follows:

Primary Standard:

a commercially available substance of purity 100±0.02 percent (Purity 99.98 + percent).

Working Standard:

a commercially available substance of purity 100±0.05 percent (Purity 99.95 + percent).

Secondary Standard:

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

SRM Type

Wt/Unit

(grams) Certified Use

Purity

Stoichiometric

17c Sucrose 60 Polarimetric Value f)

40h Sodium Oxalate 60 Reductometric Value 99.972

41b Dextrose (D-glucose) 70 Reductometric Value (

b

) 83d Arsenic Trioxide 60 Reductometric Value 99.9926

84j Acid Potassium Phthalate 60 Acidimetric Value 99.996

136d Potassium Dichromate 60 Oxidimetric Value 99.9931

350a Benzoic Acid 30 Acidimetric Value 99.9958

723a Tris(hydroxymethyl)aminomethane 50 Basimetric Value 99.9703

949f Plutonium Metal 0.5 Assay 99.99

950b Uranium Oxide (U,Os ) 25 Uranium Oxide Standard Value 99.968

951 Boric Acid 100 Acidimetric and Boron Isotopic Value 100.00

960 Uranium Metal 26 Assay 99.975

985 Potassium Chloride 1 Assay and Isotopic 99.9

987 Strontium Carbonate 1 Assay and Isotopic 99.98

999 Potassium Chloride 60 Assay Standard for: Potassium 99.98

Chloride 99.99

3 Sucrose=Moisture <0.01 percent, Reducing Substance <0.02 percent, Ash 0.001 percent.

b Dextrose=Moisture 0.07 percent, Ash 0.002 percent.

ilrt: f: i.C : is' ii.

»

: •'"T1S ~£i I f "I "I K These SRM's are furnished as fine crystals of suitable homogeneity for use as standards for conventional

microchemical methods of analysis employing samples of approximately 5 mg. See also Microanalytical

Standards, page 53.

SRM Type Wt/Unit (grams) Elements Certified

140b Benzoic Acid 2 C,H (IN PREP)

141c Acetanilide 2 N,C,H

142 Anisic Acid 2 Methoxyl (CH3 0—

)

143c Cystine 2 S,C,H,N

148 Nicotinic Acid 2 N,C,H
(Continued)

2141 Urea 2 N

2142 o-Bromobenzoic Acid 2 Br

2143 p-Fluorobenzoic Acid 2 F

2144 m-Chlorobenzoic Acid 2 CI

These SRM's are intended for use in calibrating apparatus and validating analytical methods used in clinical

and pathological laboratories, and to assist manufacturers of clinical products in meeting the chemical and

physical specifications required for clinical chemicals. (For details on SRM's 930D and 931c, see Spectrophotometric Filters, page 96.)

SRM Type

Associated

NBS Publications Purity % Wt/Unit

900 Antiepilepsy Drug Level Assay (phenytoin,

ethosuximide, phenobarbital, and primidone

4 drugs/3 levels Set of 4 vials

909 Human Serum # Set of 6 vials 910 Sodium Pyruvate 98.7 25 g

911a Cholesterol 99.8 2g

912a Urea 99.9 25 g

913 Uric Acid 99.7 10g

914 Creatinine 99.8 10 g

915 Calcium Carbonate SP 260-36 99.9 20 g

916 Bilirubin 99.0 100 mg

917 D-Glucose 99.9 25 g

918 Potassium Chloride SP 260-63 99.9 30 g

919 Sodium Chloride SP 260-60 99.9 30 g

920 D-Mannitol 99.8 50 g

921 Cortisol 98.9 1 g

922 Tris(hydroxymethyl) aminomethane 99.9 25 g

923 Tris(hydroxymethyl ) aminomethane HC1 99.7 35 g

924 Lithium Carbonate SP 260-70 100.0 30 g

925 VMA (4-hydroxy-3-methodymandelic acid) 99.4 1 g

926 Bovine Serum Albumin (Powder) ** 5g

927 Bovine Serum Albumin (7% Solution) ** 10 vials. 2. 1 5 mL ea. 928 Lead Nitrate 100.00 30 g

929 Magnesium Gluconate 100.1 5g

930D Glass Filters for Spectrophotometry SP 260-51 + Set of 3 931c Liquid Filters for Spectrophotometry + Set of 12 vials

56
(Continued)

SRM Type

Associated

NBS Publications Purity % Wt/Unit

932 Quartz Cuvette for Spectrophotometry SP 260-32 + 1 each

934 Clinical Laboratory Thermometer SP 260-48 1 each

935 Crystalline Potassium Dichromate

(UV Absorbance)Standard

SP 260-54 (99.972)*** 15 g

936 Quinine Sulfate Dihydrate (Fluorescence) SP 260-64 (98.2)*** 1 g

937 Iron Metal 99.90 50 g

938 4-Nitrophenol, Clinical 99.75 15 g

998 Angiotensin I (Human) 94.1 500 ^g

1590 Stabilized Wine 18.57%

by volume

at 20 °C

Set of 10 vials

1595 Tripalmitin 99.5 2g

1599 Anticonvulsant Drug Level Assay

(valproic acid and carbamazepine) 2 drugs/

3 levels

Set of 4 vials

1968 Gallium Melting Point 29.7723 °C SP 481 1 each

1969 Rubidium Melting Point 38 °C IN PREP 1 each

1970 Succinonitrile Freezing Point 58 °C IN PREP 1 each

+ Certified for optical properties (see p. 00).

ft Individually calibrated at 0, 25, 30 and 37 °C. For further information regarding calibration services, call 301-921-2805.

** Conforms to NCCLS specification ACC-1.

*** Apparent purity, certified for optical properties.

# Electrolytes, selected organics.

These SRM's are intended for use in the calibration of apparatus and methods used in the analysis of

biological materials for major, minor, and trace constituents.

SRM 1549 1566 1567 1568 1569 1572 1573 1575 1577a

Type Non-fat

Powdered

Milk

Oyster

Tissue

Wheat

Flour

Rice

Flour

Brewers

Yeast

Citrus

Leaves

Tomato

Leaves

Pine

Needles

Bovine

Liver

Unit Size IN PREP 30 g 80 g 80 g 50 g 70 g 70 g 70 g 50 g

ELEMENT

Aluminum 92 (0.12%) 545 (2)

Antimony (0.04) (0.2) (0.003)

Arsenic 13.4 (0.006) 0.41 3.1 0.27 0.21 0.047

Barium 21 Beryllium

Bismuth

Boron (30)

Bromine (55) (9) (1) (8.2) (26) (9) (9)

Cadmium 3.5 0.032 0.029 0.03 (3) «0.5) 0.44

Calcium 0.15% 0.019% 0.014% 3.15% 3.00% 0.41% 120

57
(Continued)

SRM 1549 1566 1567 1568 1569 1572 1573 1575 1577a

Type rNon-tat Oyster wneat Rice Brewers Citrus Tomato Pine Bovine

Powdered Tissue Flour Flour Yeast Leaves Leaves Needles Liver

Milk

Unit Size IN PREP 30 g 80 g 80 g 50 g 70 g 70 g 70 g 50 g

Cerium (0.28) (1.6) (0.4)

Cesium (0.098)

Chlorine (1.0%) (414) 0.28%

Chromium 0.69 2.12 0.8 4.5 2.6 Cobalt (0.4) 0.02 (0.02) (0.6) (0.1) 0.21

Copper 63.0 2.0 2.2 16.5 11 3.0 158

Europium (0.01) (0.04) (0.006)

Fluorine (5.2)

Gallium

Iodine (2.8) 1.84

Iron 195 18.3 8.7 90 690 200 194

Lathanum (0.19) (0.9) (0.2)

Lead 0.48 0.020 0.045 13.3 6.3 10.8 0.135

Lithium

Magnesium 0.128% 0.58% (0.7%) 600

Manganese 17.5 8.5 20.1 23 238 675 9.9 Mercury 0.057 0.001 0.0060 0.08 (0.1) 0.15 0.004

Molybdenum «0.2) (0.4) (1.6) 0.17 3.5 Nickel 1.3 (0.18) (0.16) 0.6 (3.5)

Nitrogen (2.86%) (5.0%) (1.2%) (10.7%)

Phosphorus (0.81%) 0.13% 0.34% 0.12% 1.11%

Potassium 0.969% 0.136% 0.112% 1.82% 4.46% 0.37% 0.996%

Rubidium 4.45 (1) (7) 4.84 16.5 11.7 12.5 Samarium (0.052)

Scandium (0.01) (0.13) (0.03)

Selenium 2.1 1.1 0.4 (0.025) 0.71

Silver 0.89 0.04

Sodium 0.51% 8.0 6.0 160 0.243%

Strontium 10.36 100 44.9 4.8 0.138

Sulfur (0.76%) 0.407% 0.78%

Tellurium (<0.002) (<0.002) (0.02)

Thallium (<0.005) (<0.01) (0.05) (0.05) (0.003)

Thorium (0.1) 0.17 0.037

Tin (0.24)

Uranium 0.116 (<0.15) 0.061 0.020 0.00071

Vanadium 2.3 Zinc 852 10.6 19.4 29 62 123

Content in jug/g, or where noted in weight percent.

Values in parentheses are not certified, but are given for information on

58
Analyzed Gases

These SRM's are intended for use in the calibration of apparatus used for the measurement of various

components in gas mixtures, and in some cases for particular atmospheric pollutants. Each SRM in accurately

certified and is intended primarily for use in monitoring and correcting long-term drifts in instruments used.

Each gas is contained in an aluminum cylinder, 870 liters at STP. All cylinders conform to the appropriate

DOT specifications.

SRM Type

Certified

Component Nominal Concentration

1658a Methane in Air CH4

1 fimole/mole (ppm)

1659a Methane in Air CH4 10 u.mole/mole (ppm)

1660a Methane-Propane in Air CH4 4 /xmole/mole (ppm)

C3 HS

1 jumole/mole (ppm)

1661a Sulfur Dioxide in Nitrogen so2 500 /j,mole/mole (ppm)

1662a Sulfur Dioxide in Nitrogen SO, 1000 uxnole/mole (ppm)

1663a Sulfur Dioxide in Nitrogen SO, 1500 u.mole/mole (ppm)

1664a Sulfur Dioxide in Nitrogen SO, 2500 jumole/mole (ppm)

1665b Propane in Air C3Hg 3 /xmole/mole (ppm)

1666b Propane in Air C3 H8 10 u.mole/mole (ppm)

1667b Propane in Air 50 jumole/mole (ppm)

1668b Propane in Air C,HS 100 u.mole/mole (ppm)

1669b Propane in Air C3H8 500 fxmole/mole (ppm)

1670 Carbon Dioxide in Air CO, 0.033 mole percent

1671 Carbon Dioxide in Air CO, 0.034 mole percent

1672 Carbon Dioxide in Air CO, 0.035 mole percent

1674b Carbon Dioxide in Nitrogen CO, 7.0 mole percent

1675b Carbon Dioxide in Nitrogen CO, 14.0 mole percent

1677c Carbon Monoxide in Nitrogen CO 10 ppm

1678c Carbon Monoxide in Nitrogen CO 50 ppm

1679c Carbon Monoxide in Nitrogen CO 100 ppm

1680b Carbon Monoxide in Nitrogen CO 500 ppm

1681b Carbon Monoxide in Nitrogen CO 1000 ppm

1683a Nitric Oxide in Nitrogen NO 50 ppm

1684a Nitric Oxide in Nitrogen NO 100 ppm

1685b Nitric Oxide in Nitrogen NO 250 ppm

1686b Nitric Oxide in Nitrogen NO 500 ppm

1687b Nitric Oxide in Nitrogen NO 1000 ppm

1693 Sulfur Dioxide in Nitrogen SO, 50 ppm

1694 Sulfur Dioxide in Nitrogen so2 100 ppm

1696 Sulfur Dioxide in Nitrogen SO, 3500 ppm

1805 Benzene in Nitrogen 0.25 ppm

1806 Benzene in Nitrogen C„Hb 10 ppm

1808 Tetrachloroethylene in Nitrogen—IN PREP

C2 C14 0.25 ppm

59
Analyzed Gases (Continued)

SRM Type

Certified

Component Nominal Concentration

2612a Carbon Monoxide in Air CO 10 /xmole/mole (ppm)

2613a Carbon Monoxide in Air CO 20 jamole/mole (ppm)

2614a Carbon Monoxide in Air CO 45 /j.mole/mole (ppm)

2619a Carbon Dioxide in Nitrogen co2 0.5 mole percent

2620a Carbon Dioxide in Nitrogen co2 1.0 mole percent

2621a Carbon Dioxide in Nitrogen co2 1.5 mole percent

2622a Carbon Dioxide in Nitrogen co2 2.0 mole percent

2623a Carbon Dioxide in Nitrogen CO, 2.5 mole percent

2624a Carbon Dioxide in Nitrogen co2 3.0 mole percent

2625a Carbon Dioxide in Nitrogen co2 3.5 mole percent

2626a Carbon Dioxide in Nitrogen co2 4.0 mole percent

2627 Nitric Oxide in Nitrogen NO 5 /xmole/mole (ppm)

2628 Nitric Oxide in Nitrogen NO 10 /Limole/mole (ppm)

2629 Nitric Oxide in Nitrogen NO 20 fxmole/mole (ppm)

2630 Nitric Oxide in Nitrogen NO 1500 umole/mole (ppm)

2631 Nitric Oxide in Nitrogen NO 3000 /j.mole/mole (ppm)

2632 Carbon Dioxide in Nitrogen CO, 300 ppm

2633 Carbon Dioxide in Nitrogen CO, 400 ppm

2634 Carbon Dioxide in Nitrogen co2 800 ppm

2635 Carbon Monoxide in Nitrogen CO 25 ppm

2636 Carbon Monoxide in Nitrogen CO 250 ppm

2637 Carbon Monoxide in Nitrogen CO 2500 ppm

2638 Carbon Monoxide in Nitrogen CO 5000 ppm

2639 Carbon Monoxide in Nitrogen CO 1 mole percent

2640 Carbon Monoxide in Nitrogen CO 2 mole percent

2641 Carbon Monoxide in Nitrogen CO 4 mole percent

2642 Carbon Monoxide in Nitrogen CO 8 mole percent

2643 Propane in Nitrogen C3 H8 100 ppm

2644 Propane in Nitrogen C3 H8 250 ppm

2645 Propane in Nitrogen C3 H8 500 ppm

2646 Propane in Nitrogen C3 H8 1000 ppm

2647 Propane in Nitrogen 2500 ppm

2648 Propane in Nitrogen 5000 ppm

2649 Propane in Nitrogen C3 Hg

1 mole percent

2650 Propane in Nitrogen C3 H8 2 mole percent

2651 Propane in Nitrogen and Oxygen C,H8 /02 0.01/5.0 mole percent

2652 Propane in Nitrogen and Oxygen C3 H8 /02 0.01/10.0 mole percent

2653 Nitrogen Dioxide in Air NO, 250 ppm

2654 Nitrogen Dioxide in Air NO, 500 ppm

2655 Nitrogen Dioxide in Air NO, 1000 ppm

2656 Nitrogen Dioxide in Air NO, 2500 ppm

2657 Oxygen in Nitrogen O, 2 mole percent

2658 Oxygen in Nitrogen O, 10 mole percent

2659 Oxygen in Nitrogen o2 21 mole percent

60
Permeation Tubes

These SRM's are intended for use in calibrating air pollution monitoring apparatus, and may be used to verify

air pollution analytical methods and procedures. Each tube is individually certified.

Sulfur Dioxide

Sulfur dioxide permeation tubes are available in three lengths—2, 5, and 10 centimeters. The permeation rates are certified over the temperature range of 20 to 30 °C. The data in the following table are provided as a guide in the selection of the desired SRM. The concentrations generated by typical tubes (0.28 micrograms

per centimeter per minute) at 25 °C and at flow rates of 1.5 and 10 liters per minute are shown below.

SRM Type

Tube Length

(cm)

Permeation

Rate (jLtg/min)

Typical Concentrations (ppm)

Flow Rates (liters per minute)

(1) (5) (10)

1625 Sulfur Dioxide Permeation Tube 10 2.8 1.07 0.214 0.107

1626 Sulfur Dioxide Permeation Tube 5 1.4 0.535 0.107 0.0535

1627 Sulfur Dioxide Permeation Tube 2 0.56 0.214 0.0428 0.0214

Nitrogen Dioxide

Nitrogen dioxide permeation device (SRM 1629a) is calibrated at 25.0 °C only. The temperature coefficient

given with each tube provides the means to calculate permeation rates at other temperatures near 25 °C. The

permeation rates for these tubes are between 0.5 and 1.5 mg/min at 25 °C. A tube with a rate of 1.0 u.g/min,

in an air-flow of one liter per minute at 25 °C, will produce a concentration of 0.5 ppm of N02

. (Cannot be

shipped by air.)

Benzene

SRM 191 1 is a permeation device that is certified for its permeation rate in micrograms of benzene at 25 °C.

It is intended for use in the preparation of gases of known benzene content and for the standardization of air

pollution an related chemical analyses. A typical permeation rate for this SRM is 35 jug/minute at 25 °C.

(Cannot be shipped by air.)

Analyzed Liquids and Solids

These SRM's are intended for use in the analysis of materials for constituents of interest in health or environmental problems. See also: Clinical SRM's page 56, and Industrial Hygiene SRM's page 66

Single Element

Certified Element

SRM Type Unit Size Lead Sulfur Mercury

1579 Powdered Lead Base Paint 35 g 11.87%

1618 Vanadium and Nickel in Residual Fuel Oil

IN PREP

1619 Sulfur in Residual Fuel Oil 100 mL 0.719%

1620a Sulfur in Residual Fuel Oil 100 mL 4.504%

1621b Sulfur in Residual Fuel Oil 100 mL 0.950%

1622b Sulfur in Residual Fuel Oil 100 mL 1.982%

1623a Sulfur in Residual Fuel Oil 100 mL 0.240%

1624a Sulfur in Distillate Fuel Oil 100 mL 0.141%

1630 Trace Mercury in Coal 50 g 0.13 jug/g

61
Single Element (Continued)

Certified Element

SRM Type Unit Size Lead Sulfur Mercury

1636a Lead in Reference Fuel 3 vials each 0.03, 0.05

0.07, 2.0 g/gal

1637a Lead in Reference Fuel 4 vials each 0.03, 0.05,

0.07 g/gal

1638a Lead in Reference Fuel 12 vials each 2.0 g/gal

1641b Mercury in Water (jiig/mL) 6x20 mL 1.52 /u,g/mL

1642b Mercury in Water (ng/mL) 950 mL 1.49 ng/mL

8505 Vanadium in Crude Oil IN PREP

Concentrations in weight percent, or as otherwise noted.

Multi-Element

SRM 1632a 1633a 1634a 1635 1643a 1645 1646 1648

Type Trace Trace Trace Trace Trace River Estuarine Urban

Elements Elements Elements Elements Elements Sediment Sediment Particulate

in Coal in Coal Fly in Fuel Oil in Coal in Water

(Bituminous) Ash (Sub- (ng/g)

bituminous)

Unit Size 75 g 75 g 100 mL 75 g 950 mL 70 g 75 g 2 g

ELEMENT

Aluminum (3.1%) (14%) (0.32%) 2.26% 6.25% 3.42%

Antimony (0.6) (7) (0.14) (51) (0.4) (45)

Arsenic 9.3 145 (0.12) 0.42 76 ng/g (66) 11.6 115

Barium (0.15%) 46 ng/g (737)

Beryllium (12) (0.006) 19 ng/g (1.5)

Bromine (<jj (500)

Cadmium 0.17 1.0 (0.002) 0.03 10 ng/g 10.2 0.36 75

Calcium 0.23% 1.11% (16) (2.9) 0.83%

Cerium (30) (180) (3.6) (80) (55)

Cesium (2_4) (JJJ (3.7) (3)

Chlorine (31) (0.45%)

Chromium 34.4 196 (0.7) 2.5 17 ng/g 2.96% 76 403

Cobalt (6.8) (46) (0.3) (0.65) 19 ng/g 10.1 10.5 (18)

Copper 16.5 118 3.6 18 ng/g 109 18 609

Europium (0.5) (4) (0.06) (1.5) (0.8)

Fluorine (0.09%)

Gallium (8.5) (58) (1.05)

Germanium (1.4)

Hafnium (1.6) (7.6) (0.29) (4.4)

Indium (1.0)

62
Multi-Element (Continued)

SRM 1632a 1633a 1634a 1635 1643a 1645 1646 1648

Type Trace Trace Trace Trace Trace River Estuarine Urban

Elements Elements Elements Elements Elements Sediment Sediment Particulate

in Coal in Coal Fly in111 T^iipI 1 UCl flil in w riiil 111 VUal in111 Watpr TTalC! (Bituminous) Ash (Sub- (ng/g)

bituminous)

75 g 75 g 100 mf 75'J oB 70 a 75 p 2 B

Iodine (20) Iron 1.11% 9.4% (31) 0.239% 88 ng/g 11.3% 3.35% 3.91%

Lanthanum (9) (42)

Lead 12.4 72.4 2.8 1.9 27 ng/g 714 28.2 0.655%

Lithium (49)

Magnesium (0.1%) 0.455% 0.74% 1.09% (0.8%)

Manganese 28 (190) 0.19 21.4 31 ng/g 785 375 (860)

Mercury 0.13 0.16 (<0.002) (<0.2) ng/g 1.1 0.063

Molybdenum (29) (0.12) 95 ng/g (2)

Nickel 19.4 127 29 1.74 55 ng/g 45.8 32 82

Phosphorus 0.054%

Potassium 0.42% 1.88% 1.26% (1.4%) 1.05%

Rubidium (31) 131 (87) (52)

Samarium (4.4)

Scandium (6.3) (40) (0.63) (2) (10.8) (7)

Selenium 2.6 10.3 0.15 0.9 1 1 ng/g (1.5) (0.6) 27

Silicon 22.8% (31%)

Silver 2.8 ng/g (6)

Sodium 840 0.17% 87 (0.24%) 0.54% (2%) 0.425%

Strontium 830 239 ng/g

Sulfur 1.58% 2.85% 0.33% (1.1) (0.96%; (5%)

Tellurium (0.5)

Thallium 5.7 1.44 (0.5)

Thorium 4.5 24.7 0.62 1.62 (10) (7.4)

Titanium (0.18%) (0.8%) (0.02%) (0.51%) (0.40%)

Tungsten (4.8)

Uranium 1.28 10.2 0.24 1.11 5.5 Vanadium 44 (300) 56 5.2 53 ng/g 23.5 94 140

Zinc 28 220 2.7 4.7 68 ng/g 0.172% 138 0.476%

Values in parentheses are not certified, but are given for information only.

Concentrations in microgram per gram, or where noted weight percent.

All concentrations for SRM 1643a are nanogram per gram.

63
Organic Constituents

SRM Type Unit of Issue

1580 Shale Oil Set of 5, 2 rr L/ampoule

1582 Petroleum Crude Oil IN PREP

1644 Polynuclear Aromatic Hydrocarbon Generator Columns Set of 3 columns

1647 Priority Pollutant Polynuclear Aromatic Hydrocarbons (in Acetonitrile) Set of 5, 1.2 mL/ampoule

1649 Urban Dust/Organics 10 grams

1639 Halocarbons (in methanol) for Water Analysis Set of 5, 1.5 mL/ampoule

SRM's Certified for Organic Constituents

SRM 1580 1644 1647 1649

Constituents (Mg/g) (/ig/kg) (ju.g/mL) (Mg/g)

Anthracene 16.6 to 60.1 3.29

Benz| a ]anthracene 3.38 to 12.8 5.03 2.6 Benzo[a]pyrene 21 0.59 to 2.26 5.3 2.9 Benzo[ e]pyrene 18 Fluoranthene 54 10.1 7.1

o-Cresol 385

Phenol 407

Perylene 3.4 Pyrene 104 9.84

2,6-Dimethylphenol 175

Benzol fjquinoline 16

(5,6-Benzoquinoline)

Naphthalene 22.5

Acenaphthylene 19.1 Acenaphthene 21.0

Fluorene 4.92

Phenanthrene 5.06

Chrysene 4.68

Benzo | b ] fluoranthene 5.11 Benzo [ k ] fluoranthene 5.02

Benzo [ ghi ] perylene 4.01 4.5 Dibenz [ a,h ] anthracene 3.68 Indenof 1,2,3-cd Jpyrene 4.06 3.3

1 Range of aqueous concentrations certified also in nmol/L.

64
Organic Constituents (Continued)

SRM 1639—Certified Concentration of Halocarbons at 23 + 3 °C.

Compound Concentration, ng/juL

Chloroform 6235

Chlorodibromomethane 124.6

Bromodichloromethane 389.9

Bromoform 86.5 Carbon tetrachloride 157.0

Trichloroethylene 85.8 Tetrachloroethylene 40.6

Polychlorinated Biphenyls in Oil

SRM 1581 was developed primarily for use in calibrating instrumentation and validating methodology for the

determination of polychlorinated biphenyls (PCB's) in oil. It lists the certified concentrations of Aroclor 1242

and Aroclor 1260 present individually at 100 ixg/g (ppm) in motor oil and transformer oil. Additional base oil

is supplied to dilute the four certified concentrates.

Sulfur in Coal

This series (SRM's 2682-2685) is intended primarily for use as analytical standards for determination of total

sulfur in coal, ash content, and calorific value (BTU/lb). SRM's 2682-2685 are four different coals that were

crushed and ground to pass a 60-mesh sieve. Each coal SRM has been analyzed for approximately 30

elements, including carbon, hydrogen and nitrogen. Semi-quantitative data are provided for information.

SRM Coal Type

Sulfur

Wt.%

Furnace

Ash Wt.%

HHV2

MJ'Kg"' (BTUMb 1 )

2682 Sub-bituminous 0.47 6.37 27.45 (11800)

2683 Bituminous 1.85 6.85 32.70 (14060)

2684 Bituminous 3.00 11.09 29.68 (12760)

2685 Bituminous 4.62 16.53 28.15 (12100)

NOTE: The calorific values (MJ-Kg 1 ) may decrease upon the aging or normal oxidation of the coals. NBS

will continue to monitor these calorific values and report any substantive change to the purchaser.

Dale Friend operates equipment used to seal ampules containing various clinical, biological, and environmental SRM's.
Industrial Hygiene

These SRM's were developed especially for clinical and industrial hygiene analyses, and are the outgrowth of an NBS program to develop standardization and reference materials for toxicology research and for

monitoring human exposure to selected toxic elements in the workplace environment.

Freeze-Dried Urine

SRM's 2670, 2671a, and 2672a consists of freeze-dried urine in 30 mL serum bottles. The freeze-dried urine

SRM's are to be reconstituted by the addition of 20 mL of pure water to each bottle. Each unit contains a set of four bottles, two bottles each at normal and elevated levels.

SRM Matrix Constituent Certified or Determined

2670 Freeze-Dried Urine Arsenic, Cadmium, Calcium, Chloride, Copper, Lead,

Magnesium, Manganese, Nickel, Potassium, Selenium,

Sodium, Zinc

2671a Freeze-Dried Urine Fluoride

2672a Freeze-Dried Urine Mercury

Materials on Filter Media

These SRM's consist of potentially hazardous materials deposited on filters to be used to determine the levels

of these materials in industrial atmosphere.

Quantity Certified (jug/filter)

Unit Material

SRM Type Size Certified I II III IV

2673 Sulfate and Nitrate 2 filters at Sulfate 503 2002 6939 2 on Filter Media each level Nitrate 100 1002 2513 2 2674 Lead on Filter Media 2 filters at each level Lead 100 303 1505 1.4 2675 Beryllium on Filter Set of 3 Beryllium 0.052 0.25 1.0 Media

2676b Metals on Filter Media Set of 12 Cadmium 0.99 2.49 10.14 (<0.01)

Lead 7.55 14.9 30.4 (<0.04)

Manganese 1.88 9.41 18.5 (<0.01)

Zinc 10.01 49.7 99.5 (0.4)

2679a Quartz on Filter Media Set of 4 IN PREP

Values in parentheses are not certified, but are given for information only.

Respirable Quartz

This SRM consists of quartz powder that is in the respirable size range. It is intended for use in determining

the level of quartz in an industrial atmosphere by x-ray diffraction.

SRM Type Amount

1878 Alpha Quartz 5g

66
Asbestos

This SRM consists of four 3x3 mm sections of a 0.4 mm pore size polycarbonate filter containing chrysotile

fibers mixed with an urban dust. It is intended for use in evaluating the techniques used to count and identify

chrysotile asbestos fibers in filter samples by transmission electron microscopy.

SRM Type Fiber Loading

1876 Chrysotile Asbestos 30 fibers/0.01 mm2

These SRM's are intended for the preparation of solutions in oils of known and reproducible concentrations

of metals. Because "matrix" effects occur, it is desirable to prepare the standard solutions in oil identical or

similar to the oil being studied. Possession of an adequate collection of these metallo-organic SRM's permits

the preparation of any desired blend of known concentrations of metal in the appropriate lubricating oil. They are used primarily for the calibration of spectrochemical equipment used in the determination of metals

in lubricating oil. This technique is used extensively in the defense program, the transportation industry, and

other industries where the consequences of failure of a moving metal part may range from inconvenient to catastrophic.

The Certificate supplied with each SRM gives the percentage of the element of interest and directions

for preparing a solution of known concentration in lubricating oil.

Constituent Certified

SRM Type Element (Wt. percent) Wt/Unit

(grams)

1075a Aluminum 2-ethylhexanoate Aluminum 8.07 5 1051b Barium cyclohexanebutyrate Barium 28.7 5 1053a Cadmium cyclohexanebutyrate Cadmium 24.8 5 1074a Calcium 2-ethylhexanoate Calcium 12.5 5 1078b Tris( l-phenyl-l,3-butanediono)chromium (III) Chromium 9.6 5

1055b Cobalt cyclohexanebutyrate Cobalt 14.8 5 1080a Bis( l-phenyl-l,3-butanediono) copper (II) Copper 16.37 5 1079b Tris ( l-phenyl-l,3-butanediono) iron (III) Iron 10.45 5 1059c Lead cyclohexanebutyrate Lead 5 1061c Magnesium cyclohexanebutyrate Magnesium 6.45 5

1062b Manganous cyclohexanebutyrate Manganese 13.2 5 1065b Nickel cyclohexanebutyrate Nickel 13.89 5 1071b Triphenyl phosphate Phosphorus 9.48 5 1076 Potassium Erucate Potassium IN PREP

1066a Octaphenylcyclotetrasiloxane Silicon 14.14 5

1077a Silver 2-ethylhexanoate Silver 42.60 5 1069b Sodium cyclohexanebutyrate Sodium 12.0 5 1070a Strontium cyclohexanebutyrate Strontium 20.7 5 1057b Dibutyltin bis (2-ethylhexanoate) Tin 22.95 5 1052b Bis (l-phenyl-l,3-butanediono) oxovanadium (IV) Vanadium 13.01 5 1073b Zinc cyclohexanebutyrate Zinc 16.66 5

67
Wear-Metals in Oil

These SRM's consist of 10 metallo-organic compounds blended into a base oil. Element values are listed in

SRM 1083 1084 1085

Wear-Metals in Wear-Metals in Base Oil Lubricating Oil Lubricating Oil

Type (IN PREP) 100 ppm 300 ppm

Unit Size 150 mL 85 mL 85 mL

ELEMENT

Aluminum 98 296

Chromium 100 298

Copper 98 295

Iron 100 300

Lead 101 305

Magnesium 98 297

Molybdenum 97 292

Nickel 101 303

Silver (102) (296)

Titanium 99

Values in parentheses are not certified, but are given for information only.

Fertilizers

These SRM's are intended for use in the fertilizer industry as working standards for the determination of the

certified constituents.

SRM Type

Certified Composition (Weight Percent)

Wt/Unit

(grams) N P K

193 Potassium Nitrate 90 13.85 38.66

194 Ammonium Dihydrogen Phosphate 90 12.15 26.92

200 Potassium Dihydrogen Phosphate 90 22.74 28.76

Constituent (Nominal Weight Percent)

SRM

Wt/Unit

Type (grams) P2 Os CaO Si02 F Fe203 A1203 MgO Na20 MnO K2 0 Ti02 C02 CdO

120B Rock 90 34.57 49.40 4.68

(Florida)

3.84 1.10 1.06 0.28 0.35 0.032 0.12 0.15 2.79 0.002

68
Ores

These SRM's are intended for use in evaluating the accuracy of assay methods. They are certified for the

elements that are of economic interest, and occasionally, have data given for information only. These SRM's

are supplied in the form of fine powders, usually less than 0.15 mm.

SRM 79a 180 181 182 183

Type

Fluorspar, Fluorspar,

customs high grade

grade

Lithium

ore (Spodumene)

Lithium

ore

(Petalite)

Lithium

ore

(Lepidolite)

Unit Weight 120 g 120 g 45 g 45 g 45 g

Constituents

CaF2 97.39 98.80

Li2 0 6.39 4.34 4.12

Cu

Re

Mo

Au

Ag

SRM 330 331 332 333

Type

Copper,

ore mill heads

Copper,

ore mill

tails

Copper,

Concentrate

Molybdenum,

Concentrate

Unit Weight 100 g 100 g 50 g 35 g

Constituents

CaF2 Li 2 0

Cu 0.84 0.091 28.4 1.038

Re 0.30 ppm 0.04 ppm 10.2 ppm 0.087

Mo 0.018 0.0022 0.64 55.3

Au (0.093 ppm) (0.034 ppm) (2.14 ppm) (8.9 ppm)

Ag (1.37 ppm) (0.243 ppm) (38.7 ppm) (25.0 ppm)

Values in parentheses are not certified, but are given for information only.

69
Ores

SRM 27f 690 691 692 693 69b 696

Type

Iron Ore,

Sibley

Iron Ore,

Canada

Iron Oxide

reduced

Iron Ore,

Labrador

Iron Ore,

Nimba

Bauxite,

Arkansas

Bauxite,

Surinam

Unit Weight 100 g 150 g 100 g 150 g 150 g 60 g 60 g

Constituents

A12 0, 0.82 0.18 1.22 1.41 1.02 48.8 54.5 BaO (0.008) (0.004)

Cd

CdO

CaO 0.039 0.20 0.63 0.023 0.016 0.13 0.018

Co 0.030 (0.0001) (0.00009)

Cu 0.032

Cr2 03 0.011 0.047

F

In

Total Fe 65.97 66.85 90.8 59.58 65.11

Fe2 03 7.14 8.70

Pb

MgO 0.019 0.18 0.52 0.035 0.013 0.085 0.012

MnO 0.011 0.23 0.043 0.46 0.091 0.110 0.004

P 0.041 0.011 0.006 0.039 0.056

p2 o5 0.118 0.050

K2 0 0.008 0.0030 0.039 0.0028 0.068 0.009

SiO, 4.17 3.71 3.7 10.14 3.87 13.43 3.79

Ag

Na2 0 0.012 0.003 0.186 0.008 0.0028 0.025 (0.007)

S 0.005 0.003 0.008 0.005 0.005

S03 0.63 0.21 Ti02 0.019 0.022 0.27 0.045 0.035 1.90 2.64

U

v2 o< 0.028 0.072

WO,

Zn

ZnO 0.0035 0.0014

ZrQ2 0.29 0.14

Loss on

Ignition 27.2 29.9

Moisture

70
Ores (Continued)

SRM 697 698 699 3 20b 277 113a 329 25d 670

Type

Bauxite

Dominican

Bauxite

Jamaican

Alumina

(Reduction

Grade)

Phosphate

Rock,

Florida

Tungsten

Concentrate

Zinc

Concentrate

Zinc

Concentrate Manganese Rutile

Ore Ore

Unit

Weight

60 g 60 g 60 g 90 g 100 g 100 g 100 g (IN (IN

PREP) PREP)

Constit- uents

A1,A 45.8 48.2 1.06 BaO (0.015) (0.008) Ta(0.20)

Cd 0.78 0.14

CdO 0.002

CaO 0.71 0.62 0.036 49.40 Ca(0.37) 1.1, 0.08

Co (0.0013) (0.0045) (0.11) (0.009)

Cu 0.31 0.13,

Cr203 0.100 0.080 0.0002 Nb(1.0)

F 3.84 Ni(0.07) Ni( 0.006)

In 0.019

Total Fe (7.4) 2.08 12.94 (*)

Fe,0, 20.0 19.6 0.013 1.10 Pb (0.07) 2.80 6.06 MgO 0.18 0.058 0.0006 0.20 0.75 0.1

6

5 MnO 0.41 0.38 0.0005 0.032 Mn(lO.O) Mn(*)

P (0.03) (*)

PA 0.97 0.37 0.0002 34.57

K2 0 0.062 0.010 0.12

SiOo 6.81 0.69 0.014 4.68 Si(0.85) (1.54) (0.61) Si(*) Si(*)

Ag 0.046v 0.0089

Na2 0 (0.036) (0.015) 0.59 0.35

S (0.25) 30.6 (31.7)

S03 10.13 0.22 02 (21.4)

TiO, 2.52 2.38 0.15 Ti(2.2) Ti(*)

U 128.4 jLig/g

v2 o5 0.063 0.064 0.0005 Mo(0.06)

WO, 67.4

Zn 57.3 45. 5 ZnO 0.037 0.029 0.013 Sn(0.54)

ZrO, 0.065 0.061 Zr(*)

Ga2 03 0.010

Li2 0 0.002

Loss on

Ignition 22.1 27.3

Moisture 0.008 0.45

Values in parentheses are not certified, but are given for information only.

*SRM in preparation; values to be certified.

71
Rocks, Minerals, and Refractories

SRM lc 88a 70a 99a 97a 98a 81a 165a

Type

Limestone,

argillaceous

Limestone,

dolomitic

Feldspar,

potash

Feldspar,

soda

Clay,

flint

Clay,

plastic

Glass

sand

Glass sand,

(low iron)

Unit Weight 50 g 50 g 40 g 40 g 60 g 60 g 75 g 75 g

Constituents

A12 0, 1.3 0.19 17.9 20.5 38.79 33.19 0.66 0.059

BaO 0.02 0.26 0.07 5 0.03

CaO 50.3 30.1 5 0.11 2.14 0.11 0.31 Cr7 0, 0.03 0.03 46 jig/g (1.1 fAg/g)

co2 46.6

FeO

Fe2 0, 0.55 0.28 0.07, 0.065 0.45 1.34 0.082 0.012

Li2 0 0.11 0.070

MgO 0.42 21.3 0.02 0.15 0.42

MnO 0.025 0.03

p2 o5 0.04 0.01 0.02 0.36 0.11 K2 0 0.28 0.12 11.8 5.2 0.50 1.04 Rb2 0 0.06

Si02 6.84 1.20 67.1 65.2 43.67 48.94

Na2 0 0.02 0.01 2.5 5 6.2 0.037 0.082

SrO 0.030 0.010 0.18 0.039

Ti02 0.07 0.02 0.01 0.007 1.90 1.61 0.12 0.011

Zr02 0.063 0.042 0.034 0.006

Loss on

Ignition 39.9 46.7 0.40 0.26 13.32 12.44

SRM 154b 278 688 76a 77a 78a

Type

Titanium

dioxide

Obsidian

rock

Basalt

rock

Burnt

Refractory

(Al2 O3 -40%)

Burnt

Refractory

(Al2O3-60%)

Burnt

Refractory

(Al2O3-70%)

Unit Weight 90 g 35 g 60 g 75 g 75 g 75 g

Constituents

A1 2 0, 14.15 17.36 38.7 60.2 71.7 BaO

CaO 0.983 0.22 0.05 0.11 Cr2 03 CO?

FeO 7.64

Fe2 0, 2.04 10.35 1.60 l-0b 1.2 Li2 0 0.042 0.25 0.12

MgO 0.52 0.38 0.70

MnO 0.052 0.167

72
Rocks, Minerals, and Refractories (Continued)

SRM 154b 278 688 76a 77a 78a

Type

Titanium

dioxide

Obsidian

rock

Basalt

rock

Burnt

Refractory

(AI

2 O3 -40%)

Burnt

Refractory

(AI 2 O,-60%)

Burnt

Refractory

(Al 2 03 -70<Vo)

Unit Weight 90 g 35 g 60 g 75 g 75 g 75 g

Constituents

p2 o5 0.036 0.134 0.1

2

0 0.092 1.3 K2 0 4.16 0.187 1.33 0.090 1.22 Rb20

Si02 73.05 48.4 54.9 35.0 19.4 Na.O 4.84 2.15 0.07 0.037 0.078

SrO 0.037 0.009 0.25

Ti02 99.74 0.245 1.17 2.03 2.66 3.2,

Zr02 0.15 0.21 0.31 Loss on

Ignition (0.34) (0.22) (0.42)

SRM 103a 198 199

Type

Chrome

Refractory

Silica

Refractory

Silica

Refractory

Unit Weight 60 g 45 g 45 g

Constituents

A1203 29.96 0.16 0.48

BaO

CaO 0.69 2.71 2.41 Cr2 03 32.06

co2

FeO 12.43 Fe2 0, 0.66 0.74

Li 2 0 0.001 0.002

MgO 18.54 0.07 0.13

MnO 0.11 0.008 0.007

p3 o, 0.01 0.022 0.015

K,0 0.017 0.094

Rb2 0

Si02 4.63

Na2 0 0.012 0.015

SrO

Ti02 0.22 0.02 0.06

Zr02 0.01 <0.01 0.01 Loss on

Ignition 0.21 0.17

Values in parentheses are not certified, but are given for information only.

73
Glasses

SRM 89 91 92 93a 620 621 1830 1831

Type

LeadBarium OpalLowBoronHighBoron

Soda-Lime,

Flat

Soda-Lime,

Container

Soda-Lime,

Float

Soda-Lime

Sheet

Unit Size 45 g 45 g 45 g Wafer

32 mm D

X6 mm

3 platelets

35X35

X3 mm

3 disks

38 mm D

X 5 mm

3 platelets

38X38

X6 mm

3 platelets

37x37

X3 mm

Constituent Chemical Composition (Nominal Weight Percent)

Si02 65.35 67.50 (75.0) 80.8 72.8 71.13 73.07 73.08

PbO 17.50 0.10

A1,0, 0.18 6.01 2.28 1.80 2.76 0.12 1.21 Fe2 0, 0.049 0.079 0.028 0.043 0.040 0.121 0.087

ZnO 0.08 (0.2)

MnO 0.088 (0.008)

TiO, 0.01 0.019 0.014 0.018 0.014 0.011 0.019

ZrO, 0.005 0.009 0.042 0.007

CaO 0.21 10.49 (8.3) 0.01 7.11 10.71 8.56 8.20

BaO 1.40 0.12

MgO 0.03 (0.008) (0.1) 0.005 3.69 0.27 3.90 3.51 K2 0 8.40 3.24 (0.6) 0.014 0.41 2.01 0.04 0.33

Na^O 5.70 8.47 (13.1) 3.98 14.39 12.74 13.75 13.32

B2 0, 0.70 12.56

p2 o5 0.23 0.023

As2 Os 0.36 0.10

As2 0, 0.03 0.09 0.056 0.030

SO, 0.03 0.28 0.13 0.26 0.25

R2 03 (1.5)

CI 0.05 0.015 0.06

F 5.73 Loss on

Ignition 0.32 (0.42)

Values in parentheses are not certified, but are given for information only.

Wt/Unit Total Carbon

SRM Type (grams) (Wt. %)

276a Tungsten Carbide 75 6.11

74
Cements

These SRM's are furnished for x-ray spectroscopic analysis and for chemical analysis of cements and related

materials. Because these SRM's are hygroscopic, each unit consists of three sealed vials each containing

approximately 5 g of material.

SRM 633 634 635 636 637 638 639 1880 1881

Type RED GOLD BLUE YELLOW PINK GREEN CLEAR BLACK WHITE

Unit Weight 15 g 15 g 15 g 15 g 15 g 15 g 15 g 15 g 15 g

Constituent Chemical Composition (Nominal Weight Percent)

CaO 64.

5

0 62.5 8 59.8, 63.54 66.04 62.09 65.76 63.13 58.67

Si02 21.8, 20.7, 18.4, 23.

2

2 23.07 21.4, 21.6, 19.82 22.25

A1,0, 3.78 5.2, 6.29 3.0, 3.28 4.45 4.28 5.02 4.19

Fe,0, 4.20 2.84 2.61 1.61 1.80 3.55 2.40 2.91 4.68

SO, 2.20 2.2, 7.07 2.3, 2.3 8 2.34 2.48 3.37 3.65

MgO 1.04 3.30 1-2, 3.95 0.67 3.8, l-2 6 2.69 2.62

K2 0 0.17 0.42 0.45 0.59 0.25 0.59 0.06 0.91 1.17 Ti02 0.24 0.29 0.32 0.18 0.21 0.25 0.32 0.23 0.23

Na2 0 0.64 0.15 0.07 0.11 0.15 0.13 0.65 0.28 0.04

SrO 0.31 0.12 0.21 0.04 0.09 0.07 0.15 0.06 0.11

PaO, 0.24 0.10 0.17 0.08 0.24 0.06 0.08 0.29 0.09

Mn2 0, 0.04 0.28 0.09 0.12 0.06 0.05 0.08 0.08 0.26

F 0.08 0.08 0.04 0.06 0.04 0.04 0.02 0.10 0.09

ZnO 0.01 0.02 0.01 0.03 0.01 0.10 0.01 0.01 0.01 Cr2 0, 0.01 0.08 0.01 0.01 0.01 0.01 0.01

Ignition loss 0.7 5 1.6, 3.24 1.16 1.69 0.95 1.00 1.38 2.01 Total 100.06 100.00 100.03 100.00 99.97 99.97 100.16 100.30 100.07
Trflicc EI©ffn©nts

The SRM's listed below were designed for trace chemical analysis, specifically for calibrating instruments

and evaluating analytical techniques and procedures used to determine trace elements in various inorganic

matrices. In addition many SRM's certified for chemical composition have one or more constituents certified

at or below the 100 u-g/g level. Some SRM's in the following categories may be of use in trace analytical

work:

Steels (pages 19-38); High-Purity Metals (page 52); Nonferrous Alloys (pages 39-51); Environmental

Standards (page 59); and Biological Standards (page 57).

SUM 607 610-611 612 -613 614-615 616-617

Type

Trace Elements

in Potassium

Feldspar

Trace Elements

in Glass

Trace Elements

in Glass

Trace Elements

in Glass

Trace Elements

in Glass

Concentration

Range 500 ppm 50 ppm 1 ppm 0.02 ppm

Wafer

Thickness

610 3 mm

611 1 mm

612 3

613 1 mm

mm

614 3 mm

615 1 mm

616 3 mm

617 1 mm

Unit of Issue 5g 6 Wafers 6 Wafers 6 Wafers 6 Wafers

Element Nominal Concentrations (ppm)

Antimony (1.06) (0.078)

Barium (41)

Boron (351) (32) (1.30) (0.20)

Cadmium (0.55)

Cerium (39)

Cobalt (390) (35.5) (0.73)

Copper (444) (37.7) 1.37 (0.80)

Dysprosium (35)

Erbium (39)

Europium (36) (0.99)

Gadolinium (39)

Gallium (1.3) (0.23)

Gold (25) (5) (0.5) (0.18)

Iron 458 51 (13.3) (11)

Lanthanum (36) (0.83) (0.034)

Lead 426 38.57 2.32 1.85 Manganese 485 (39.6)

Neodymium (36)

Nickel 458.7 38.8 (0.95)

Potassium (461) (64) 30 29

Rubidium 523.90 425.7 31.4 0.855 0.100

Samarium (39)

Scandium (0.59) (0.026)

Silver (254) 22.0 0.42

Strontium 65.485 515.5 78.4 45.8 41.72

76
Trace Elements (Continued)

SRM 607 610-611 612-613 614-615 616-617

Trace Elements

in Potassium Trace Elements Trace Elements Trace Elements Trace Elements

Type Feldspar in Glass in Glass in Glass in Glass

Thallium (61.8) (15.7) (0.269) (0.0082)

Thorium 457.2 37.79 0.748 0.0252

Titanium (437) (50.1) (3.1) (2.5)

Uranium 461.5 37.38 0.823 0.0721

Ytterbium (42)

Zinc (433)

In addition to the elements listed above, the glass SRM's contain the following 25 elements: As, Be, Bi, Cs,

CI, F, Ge, Hf, Hg, Li, Lu, Mg, Nb, P, Pr, Se, S, Te, Tb, Tm, Sn, W, V, Y, and Zr. Note: Glass—Nominal Composition: 72% SiO,, 12% CaO, 14% Na2 0, and 2% A12 03

. Values in parentheses are not certified, but are given for information only.

INIuclCcir fVlcitGricils

Special Nuclear Materials

These SRM's are available to Department of Energy contractors, Nuclear Regulatory Commission, or State

Licensees, and foreign governments that have entered into an agreement of cooperation with the U.S.

Government regarding the use of these materials. Purchase orders and requests for information regarding

ordering procedures, availability, and shipment of these SRM's should be directed to: NBS Special Nuclear Standard Reference Materials

U.S. Department of Energy

New Brunswick Laboratory, D-350

9800 South Cass Avenue

Argonne, IL 60439

(312) 272-2485

FTS: 972-2485

Plutonium Assay

SRM Identification (Batch Name)

Constituent

Certified

Element Weight*

(g) (Weight Percent)

945 Plutonium Metal, standard matrix Impurities 5 99.9

949f Plutonium Metal Assay Plutonium Content 0.5 99.99

Nominal weight

Plutonium Isotopic

Element

Weight

(g)

Certified Isotopes (Atom Percent)

SRM Identification (Batch Name) 238pu

239Pu 24Vu 24, Pu 242Pu 244Pu

946 Plutonium Sulfate Tetrahydrate 0.25 0.232 84.464 12.253 2.477 0.574

947 Plutonium Sulfate Tetrahydrate 0.25 0.278 77.089 18.610 2.821 1.202 948 Plutonium Sulfate Tetrahydrate 0.25 0.010 91.736 7.922 0.299 0.0330

996 Plutonium—Spike 0.001 0.005 0.034 0.677 0.092 1.325 97.867

77
Uranium Assay

SRM Identification (Batch Name)

Constituent

Certified

Element Weight

(g) (Weight Percent)

950b Uranium Oxide u3 o8 25 99.968

960 Uranium Metal u 26 99.975

993 Uranium—235 Spike (solution) U-235 0.1 99.8195

995 Uranium—233 Spike (solution) U-235 0.005 99.9245

969 Uranium Oxide—IN PREP

(for NDA measurements)

Set of 5 enrichments

0.3, 0.7, 2.0, 3.0, 4.5%

Uranium Isotopic

Wt

(grams)

Certified Isotopes (Atom Percent)

SRM Uranium Oxide (U308

) 234u

235u

234u

238u

U-0002 Depleted 1.0 0.00016 0.01755 <0.00001 99.9823

U-005a Depleted—IN PREP

U-010 Enriched 1.0 0.00541 1.0037 0.00681 98.984

U-015 Enriched 1.0 0.00850 1.5323 0.0164 98.443

U-020a Enriched—IN PREP

U-030a Enriched—IN PREP

U-050 Enriched 1.0 0.0279 5.010 0.0480 94.915

U-100 Enriched 1.0 0.0676 10.190 0.0379 89.704

U-150 Enriched 1.0 0.0993 15.307 0.0660 84.528

U-200 Enriched 1.0 0.1246 20.013 0.2116 79.651

U-350 Enriched 1.0 0.2498 35.190 0.1673 64.393

U-500 Enriched 1.0 0.5181 49.696 0.0755 49.711

U-750 Enriched 1.0 0.5923 75.357 0.2499 23.801

U-800 Enriched 1.0 0.6563 80.279 0.2445 18.820

U-850 Enriched 1.0 0.6437 85.137 0.3704 13.848

U-900 Enriched 1.0 0.7777 90.196 0.3327 8.693

U-930 Enriched 1.0 1.0812 93.336 0.2027 5.380

U-970 Enriched 1.0 1.6653 97.663 0.1491 0.5229

78
Radiation Dosimetry

This SRM is a cobalt-in-aluminum alloy (wire form) to serve as a neutron density monitor standard. Accurate

determination of thermal neutron densities is essential in irradiation tests to obtain a basis for comparison of

densities within and among reactors. SRM 953 is intended for use in providing data for the design of reactors,

understanding the mechanisms of radiation damage, and for use in using neutron activation analysis. The wire

is 0.5 mm in diameter and 1 meter long.

Cobalt Content

SRM Identification (Batch Name) (Weight Percent)

953 Neutron density monitor wire (Co in Al) 0.116

8505 Vanadium in Crude Oil—IN PREP

^ Therese Butler aspirates a solution of an SRM

into the flame atomic absorption (AA)

spectrometer. Major and minor elements are determined in a variety of SRMs using flame AA, while trace elements are determined using electrothermal atomization AA

.

After rough castings are separated from the

original grid, individual disks of SRM CI 146a, White Cast Iron, are polished for use in optical emission and x-ray spectrometric

analysis.

79
Fission Track Glass

These SRM's containing uranium at four concentration levels, will aid laboratories, performing fission track

analyses, in interlaboratory comparisons of data and in monitoring neutron fluences. The fission track glass

standards are certified for neutron flux (n-cm 2 -sec ') that induced uranium fission in selected wafers. The

materials were irradiated in the NBS 10 Megawatt Research Reactor, at two different neutron energies.

Each SRM unit contains four unirradiated glass wafers and two irradiated wafers.

SRM Uranium Content ng/g 235U (Atom Percent)

NBS Pneumatic Tube Facility/

Irradiation Time (sec.)

961 461.5 0.2376 RT-3/8

RT-4/12

962a IN PREP

963a IN PREP

964 0.0721 0.616 RT-3/360

RT-4/540

Stable Isotopic

The isotopic composition of these SRM's has been determined by mass spectrometry, by comparison with

mixtures prepared from high-purity separated isotopes. They are intended for use in the assessment of small

variations in the isotopic composition of the elements, and for the evaluation of mass discrimination effects

encountered in the operation of mass spectrometers.

SRM Isotopic Reference Standards Element Certified Wt/Unit (grams)

951 Boric Acid Boron 100

952 Boric Acid, 95% Enriched ,0 B Boron 0.25

975 Sodium Chloride Chlorine 0.25

976 Copper Metal Copper 0.25

977 Sodium Bromide Bromine 0.25

978 Silver Nitrate Silver 0.25

979 Chromium Nitrate Chromium 0.25

980 Magnesium Metal Magnesium 0.25

*981 Lead Metal, Natural Lead 1.0 982 Lead Metal, Equal Atom (206/208) Lead 1.0

*983 Lead Metal, Radiogenic (92%-206) Lead 1.0 985 Potassium Chloride, assay and isotopic Potassium 1.0 987 Strontium Carbonate, assay and isotopic Strontium 1.0 989 Rhenium, assay and isotopic Rhenium pkg. (50)

990 Silicon, assay and isotopic Silicon wafer, 3 cm D

X0.2 cm

991 Lead-206 Spike, assay and isotopic Lead 15

*Sold as a set containing SRM 981, 982, and 983.

80
Special Nuclear Containers

SRM Type Size

9940 Special Nuclear Container, DOT 6M 13 gallon

9941 Special Nuclear Container 55 gallon

9942 Special Nuclear Container, Type A 10 gallon

9943 Special Nuclear Container, Type A 55 gallon

NOTE: These special packaging materials may be necessary to fill your order, depending upon Department

of Energy, Department of Transportation, and Nuclear Regulatory Commission shipping requirements.

Sally Harrison stores biological samples in a

liquid nitrogen freezer as part of the joint

NBS/EPA Pilot Environmental Specimen

Bank program..

81

Certified Physical

Properties Standards

ion Activity

These SRM's are intended for use in the preparation of solutions for the calibration of specification

electrodes. This includes the pH and pD measuring systems.

pH

These SRM's are furnished as crystals for the preparation of solutions of known hydrogen ion concentration

for calibrating and checking the performance of commercially available pH materials and instruments. They

are furnished with certificates giving directions for preparation of the solutions and tables of pH values at various temperatures.

SRM's 1861c and 18611c, 191 and 192, and 922 and 923, are certified for use in admixture only. At an equimolar (0.025 molal) mixture of SRM's 1861c and 18611c, a pH(S) of 6.863 at 25 °C is obtained. Directions

also are furnished for the preparation of a physiological reference solution from 1861c and 18611c having a pH(S) of 7.415 at 25 °C.

SRM Type

pH(S)

(at 25°C)

Wt/Unit

(grams)

185e Potassium hydrogen phthalate 4.004 60

1861c

18611c

Potassium dihydrogen phosphate

Disodium hydrogen phosphate

6.863

7.415

30

30

187b Sodium Tetraborate Decahydrate (Borax) 9.183 30

188 Potassium hydrogen tartrate 3.557 60

18^ Potassium tetroxalate 1.679 65

191a

192a

Sodium bicarbonate

Sodium carbonate

10.011 25

30

922

923

Tris( hydroxymethyl )aminomethane

Tris( hydroxymethyl )aminomethane hydrochloride

7.699 25

35

Ralph Veale inspects SRM 2083, Socketed Ball Bar Set, which is used to assist in testing coordinate measuring machines. SRM 2083 conforms to specifications of "Methods for Performance Evaluation of Coordinate Measuring Machines.
pD

These SRM's are furnished as crystals for preparation of solutions of known deuterium-ion concentration for

the calibration and correction of pH indicating equipment to indicate pD data. SRM's 21861 and 2186II, and

2191 and 2192, are certified for use in admixtures only.

pD(S) Values Wt/Unit

SRM Type (at 25°C) (grams)

21861 Potassium dihydrogen phosphate 7.428 30

2186II Disodium hydrogen phosphate 30

2191 Sodium bicarbonate 10.736 30

2192 Sodium carbonate 30

Ion-Selective Electrodes

These SRM's 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 mole per liter.

JilllllW^

SRM Type Certified Property

Wt/Unit

(grams)

2201 Sodium Chloride pNa, pCl 125

2202 Potassium Chloride pK, pCl 160

2203 Potassium Fluoride pF 125

Scanning Electron Microscope (SEM)

This SRM is for use in calibrating the magnification scale and for evaluating the performance of an SEM.

SRM 484c has spacings of 1, 2, 3, 5 and 50 mm and can be used to calibrate the magnification scale of an SEM from 1000 to 20,000 X to an accuracy of 5 percent or better. This standard is a metallographic cross- section of alternate layers of electro-deposited gold and nickel, encapsulated in copper-filled epoxy, and

mounted within a section of stainless steel tubing. If the surface of this SRM were etched by de-sputtering, it would be useful for calibrating optical microscopes.

SRM 2069 consists of graphitized natural fibers that have smooth and uniform edges. Two bundles of

the fibers are mounted on an SEM specimen mount for easy use. (Additional fibers are included for use with

different mounts.) These fibers have high contrast against the clear background in the center of the mount. A

scan of the SEM electron beam across an edge of a fiber will give a CRT trace that will provide a

quantitative indication of the performance.

SRM Type Size

484c SEM Magnification Standard 1 1 mm D, 6.5 mm high

2069 SEM Performance Standard 12 mm D, 3 mm peg

84
Optical Microscope Linewidth-Measurement

These SRM's are for use in calibrating optical microscopes used to measure the widths of opaque lines and

clear spaces on integrated-circuit photomasks. They can also be used to calibrate line spacings and line-tospace ratios. The accuracy of a measured linewidth or line spacing is ±0.05 mm or better. Recommended

procedures are provided with each SRM for the adjustment and calibration of measurement systems using

transmitted illumination, including filar, image shearing, and video micrometer. They are not recommended

for use with partially transmitting materials or in reflected light with opaque materials and it should not be

used in a scanning electron microscope. SRM's 474 and 475 are made with anti-reflective chromium on a

borosilicate glass substrate. SRM 476 is made with bright chromium.

SRM Type Spacings Size

474 Linewidth Measurement Standard 0.5 to 12 jim 6.35x6.35x0.15 cm

475 Linewidth Measurement Standard 0.5 to 12 jam 6.35x6.35x0.15 cm

476 Linewidth Measurement Standard 0.5 to 12 jam 6.35x6.35x0.15 cm

The magnetic type thickness gages have a specimen size of 30x30 mm and are for calibrating coating

thickness gages of the magnetic type for the measurement of thickness of nonmagnetic coatings on steel,

nickel on steel, or nickel on nonmagnetic substrates. The steel substrates have the magnetic properties of

AISI 1010 steel and the nickel coatings have the magnetic properties of an annealed Watts nickel

electrodeposit free of cobalt and iron.

These SRM's are often used to measure the thickness of paint and other organic coatings on steel, as well as zinc (galvanized) and other nonmagnetic metallic coatings. The number of different thicknesses

required for these calibrations depends on the type of gage and the coating thicknesses to be measured.

The magnetic type thickness gages can be used to estimate magnetic properties of austenitic stainless

steel weld metal. Because the magnetic properties of the weld metal are closely related to the ferrite content

of the weld, these instruments are used to estimate the ferrite content. The ferrite contents having magnetic

properties similar to those of the various coating thickness SRM's have been established by other

laboratories.

The gold coating standards were measured by beta-ray backscatter and x-ray fluorescence techniques

relative to NBS gold coating materials for which the average weights per unit area were determined by

weight and area measurements. They are suitable for the direct calibration of equipment used to measure

weight per unit area of gold coating of equivalent purity. From the density and weight per unit area, the

instruments can be calibrated in terms of the thickness of the standard. These SRM's have a specimen size of

15x 15 mm.

I

Nonmagnetic Coating on Magnetic Substrate (Copper and

Chromium on Steel)

Nominal Coating Thickness

SRM Unit Size micrometer milliinch (mil)

1361b Set of 4 2.5 0.1

12 0.5

25 1.0 50 2.0

1362a Set of 4 40 1.6 80 3.1 140 5.5 200 7.9

85
Nonmagnetic Coating on Magnetic Substrate (Copper and Chromium on

Steel) (Continued)

Nominal Coating Thickness

SRM Unit Size micrometer milliinch (mil)

1363a Set of 4 250 9.8 400 16 500 20

650 26

1364a Set of 4 820 32

1000 39

1500 59

2000 79

1359 Set of 4 50 2 140 5.5 500 20

820 32

1360 Set of 4 2.5 0.1

6 0.2

12 0.5 20 0.8

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Magnetic Coating on Magnetic Substrate (Nickel on Steel)

Nominal Coating Thickness

SRM Unit Size micrometer milliinch (mil)

1365a Set of 4 3 0.1

9 0.4

15 0.6 20 0.8

1366a Set of 4 25 1.0

35 1.4 40 1.6 50 2.0

86
Magnetic Coating on Non-Magnetic Substrate (Nickel and

Chromium on Brass)

- Nominal Coating Thickness

SRM Unit Size micrometer milliinch (mil)

1367a Set of 4 3 0.1

9 0.4

16 0.6 25 1.0

Gold Coating on Glass Sealing Alloy—ASTM Designation F15; Fe-53,

Ni-29, and Co-17

Nominal Coating

Weight

(mg/cm2

)

Nominal Coating Thickness

SRM Unit Size micrometer microinch

1398a Set of 4 1.5 0.8 30

3.0 1.5 60

6.0 3 120

14.0 7 280

Gold Coating on Nickel

Nominal Coating

Weight

(mg/cm2

)

Nominal Coating Thickness

SRM Unit Size micrometer microinch

1379 Set of 1 0.35 0.175 7 1380 Set of 1 0.55 0.275 11 1399b Set of 4 1.5 0.8 30

3.0 1.5 60

6.0 3 120

14.0 7 280

Glass

Chemical Resistance (Durability) of Glass

These SRM's are certified for use in checking test methods and for calibrating equipment used to determine

the resistance of glass containers to chemical attack. The values given in the table represent the volume of

fiftieth-normal sulfuric acid used to titrate to the methyl-red end point the alkaline extract from a crushed

sample of glass after exposure to high-purity water at 121 °C.

SRM Type Unit of Issue mL of N/50 H2 S04

622 Soda-lime-silica 2.2 kg 7.67

623 Borosilicate 2.2 kg 0.34

87
Electrical Properties of Glass

SRM 624 is certified over the range of 250 to 350 °C for use in checking test methods and for calibrating

equipment used to determine the dc volume resistivity of glass in accordance with ASTM C657. SRM 774 is certified over the range 100 to 10,000 Hz for use in checking methods for the determination of dielectric

constant and ac loss characteristics of insulating materials in accordance with ASTM D150.

SRM Type Unit of Issue Approximate Value

624 Lead-silica, for dc resistivity 200 kg log l0 p-9.9 fl-cm

774 Lead-silica, for dielectric block K-7.47

constant, 5x5x2.5 cm

Glass Viscosity

SRM's 710, 711, and 717 are furnished as rectangular-shaped bars, and are certified for viscosity between

values of 102 and 10

12 poises. They are for use in checking the performance of high-temperature viscosity

equipment (rotating cylinders) and low-temperature viscosity equipment (fiber elongation, beam-bending,

parallel-plates, etc.)

Temperature CO at Viscosity (poises)

SRM 102 103 104 10

s 106 107 108 109 10'° 10" 10

12

710 1434.3 1181.7 1019.0 905.3 821.5 757.1 706.1 664.7 630.4 601.5 576.9

711 1327.1 1072.8 909.0 794.7 710.4 645.6 594.3 552.7 518.2 489.2 464.5

717 1545.1 1248.8 1059.4 927.9 831.2 757.1 698.6 651.1 611.9 579.0 550.9

Glass Viscosity Fixpoints

SRM Type of Glass

Unit of

Issue

Softening

Point °C

Annealing

Point °C

Strain

Point °C

709 Extra Dense Lead 500 g 384 328 311

710 Soda Lime-Silica, type 523/586 900 g 724 546 504

711 Lead-Silica, type 617/366 1.3 kg 602 432 392

712 Mixed Alkali Lead Silicate 1/4 in patties (6 pes.) 225 g 528 386 352

713 Dense Barium Crown 620/603 1 3/8 in diam X 5/8 in thick gobs (4 pes.)225 g 738 631 599

,714 Alkaline Earth Alumina Silicate

1/4 in diam cane ( 16 pes. —6 in long)

225 g 908 710 662

715 Alkali-Free Aluminosilicate

1/4 in diam cane (13 pes. —6 in long)

200 g 961 764 714

716 Neutral, 1/2 in diam cane (6 pes. —6 in long) 250 g 794 574 530

717 Borosilicate, 4.2 cm X 4.2 cmX 12.5 cm bar 450 g 720 516 471

88
Relative Stress Optical Coefficient

Three glasses have been certified for relative stress optical coefficient. These glasses will be used to check

calibrations of instruments to measure this property, especially by the methods of test proposed by ASTM

C770. The glasses are in rectangular-shaped bars.

SRM Type of Glass Unit of Issue Relative Stress Optical Coefficient at X = 546.1 nm

708 Lead-Silica, A 625 g Glass A C= 2.857 Brewsters, 10~ 12 m

2 /N

Borosilicate, B 275 g Glass B C= 3.652 Brewsters, 10

M2m2 /N

709 Extra dense Lead 500 g C=-1.359 Brewsters, 10' 12 m

2 /N

Glass Liquidus Temperature

This SRM is certified for use in checking test methods and for calibrating equipment used to determine the

liquidus temperature of glass by the gradient furnace methods in accordance with ASTM C829.

SRM Type Unit of Issue Temperature, °C

773 Soda-lime-silica, for liquidus temperature 60 g 990

2.5X2.5X0.6 cm

Elasticity

This SRM is polycrystalline alumina prepared from a single block of material by isostatically cold pressing

and then sintering alumina powder containing 0.1 percent magnesium oxide. It is intended for the calibration

of apparatus used in the measurement of resonance frequencies from which elastic moduli are calculated.

Each bar has been individually measured and calibrated, and all surfaces were machined flat and parallel.

SRM Type Size

718 Polycrystalline Alumina 12.7xl.27x0.32 cm

Microhardness

These SRM's are for use in calibrating and checking the performance of microhardness testers. These test blocks were made by electroforming the test metal on a steel substrate. The hardness numbers are certified at loads of 25, 50, and 100 gram-force for both Vickers and Knoop indenters.

SRM Type Hardness Size

1894 Bright Copper 125 KHN 12.5 mm square

1895 Bright Nickel 550 KHN 12.5 mm square

, -a

89
SRM 217c is certified for density (air saturated at 1 atm) at 20, 25, and 30 °C, and may be used to calibrate

pycnometers and density balances.

SRM's 1840 and 1841 are certified for density at 20 °C and may be used to determine the density of

solids and liquids by means of hydrostatic weighing.

SRM Type Density 20 °C g/cm3 Amount

217c 2,2,4 Trimethylpentane 0.692 25 mL

1840 Silicon 2.329 100g

1841 Silicon 2.329 200 g

1825 Borosilicate Glass 2.3 IN PREP

1826 Soda-Lime Glass 2.5 IN PREP

1827 Lead-Silica Glass 3.2 IN PREP

Molecular Weight

Polymer

These materials are certified for the properties indicated in the table, such as weight and number average

molecular weight, molecular weight distribution, limiting viscosity numbers (intrinsic viscosities) in several

solvents, density, and melt flow.

These SRM's have wide application not only in the calibration of instruments used in polymer

characterization, such as light scattering photometers, osmometers, gel permeation chromatographs, but also

wherever a well-characterized polymer material is needed, as for example in studies of dilute solution

behavior, rheology, and polymer crystal physics.

SRM 1475 is accompanied by a series of papers, reprinted from the Journal of Research of the

National Bureau of Standards, which describe how the measurements were obtained.

SRM Type

Wt/Unit

(grams)

705 Polystyrene, narrow molecular weight distribution, Mw -179,300, Mw/Mn ~1.07 5 706 Polystyrene, broad molecular weight distribution, Mw ~ 257,800, Mw/Mn ~2.1 18 1475 Polyethylene, linear, Mw ~ 52,000, Mw/Mn ~2.9 50

1476 Polyethylene, branched 50

1478 Polystyrene, narrow molecular weight distribution, Mw -37,400, Mw/Mn ~1.04 2

1479 Polystyrene, narrow molecular weight distribution, Mw -1,050,000 2 1482 Polyethylene, linear, Mw — 13,600 1 1483 Polyethylene, linear, Mw — 32,100 1 1484 Polyethylene, linear, Mw= 119,600 1

90
mm

Polymer (Continued)

Property Method 705 706 1475 1476 1478 1479 1482 1483 1484

Molecular Weight:

Weight Average (Light Scattering) X X X X X X X

(Sedimentation X X X

Equilibrium

)

(Gel Permeation X

Chromatography-GPC)

Number Average (Osmometry) X X X X X

(GPC) X

Molecular Weight Distribution (GPC) X

Limiting Viscosity Number (Capillary Viscometer) X

Toluene 25 °C

Benzene 25 °C X X

Benzene 35 °C X

Cyclohexane 35 °C X X

1-Chloronaphthalene 130 °C X X X X X

1,2,4-trichlorobenzene 130 °C X X X X X

Decahydronaphthalene 130 °C X X

Melt Flow (ASTM) X X

Density (ASTM) X X

Heat Capacity (Adiabatic) X X

Rheology

This SRM is intended for the calibration and checking of instruments used in polymer technology and

science for the determination of rheological properties of polymer melts or solutions. It is certified for Rate

of Shear, Viscosity, and First Normal Stress Difference at 25 °C.

SRM Type Unit size

1490 Polyisobutylene Solution in Cetane 250 mL

Scanning electron microscopes can be

calibrated with an accuracy offive percent or

belter in the 1,000 to 20,000 magnification range with SRM 484c, SEM Magnification

Standard. SRM 2069, SEM Performance

Standard, is used in evaluating performance of SEM's.
Superconductive Thermometric Fixed Point Devices

Each device is composed of small cylinders of high purity material mounted in a threaded copper stud and

enclosed by a mutual inductance coil set. SRM 767a is intended to provide fixed points on the 1976

Provisional 0.5 to 30 K Temperature Scale (EPT-76). Both SRM's should prove particularly valuable to users of 3 He-4 He dilution refrigerators, in which direct calibrations on the liquid helium vapor pressuretemperature scales are difficult, and to those who wish to determine the temperature reproducibility of

physical phenomena or of cryogenic equipment.

in i i ^^

SRM Type Material

Nominal

Temperature (K)

767a Superconductive Thermometric Fixed Point Device Niobium 9.3 Lead 7.2 Indium 3.4 Aluminum 1.2 Zinc 0.9 Cadmium 0.5

768 Superconductive Thermometric Fixed Point Device (Low) Gold-Indium 0.205

Gold-Aluminum 0.157

Iridium 0.098

Beryllium 0.024

Tungsten 0.015

Freezing Point

Defining Fixed Points—International Practical Temperature Scale

These SRM's are of such purity that they are suitable for defining fixed points for the International Practical

Temperature Scale of 1968.

Wt/Unit

SRM Type Temperature "C (grams)

740 Zinc 419.58 350

741 Tin 231.9681 350

Secondary Reference Points

These SRM's are intended for use in calibration of thermometers, thermocouples, and other temperature

measuring devices. The temperatures certified are in accord with the International Practical Temperature

Scale of 1968.

SRM Type Temperature °C

Wt/Unit

(grams)

42g Tin 231.967 350

43h Zinc *419.58 350

44f Aluminum 660.3 200

45d Copper 1084.8 450

49e Lead 327.493 600

743 Mercury -38.841 680

*SRM 43h is less pure than SRM 740 and has a freezing point 0.001 °C lower.

92
Melting Point

SRM Type Temperature °C

Wt/I Init (grams)

742 Alumina, 99.9+% 2053 10

1968 Gallium, 99.9999+% 29.7723 25

1969 Rubidium 38 IN PREP

NBS calibrates liquid in glass, thermocouple, and resistance thermometers. For information, call 301-921-2805.

Calorimetric

These SRM's are intended to relate the gain or loss of energy and work experienced during a chemical

reaction or by change of temperature to the units of energy and work as defined by the National

Measurement System. This system uses the units prescribed by the International System of Units (SI). The

unit for energy and work under this system is the joule, which is related to the calorie by the equation: 4.184

joule = 1 calorie.

rr^^^m^r'^T^mi**TM'''

> n i i i i i n mi i 1 1 1 1 1 i m 1 1 n 1 1 1 1 i m 1 1 1 n i m 1 1 1 i ni 1 1 1 1 i hi

Combustion Calorimetric

SRM Type Approximate Heat of Combustion Unit Amount

39i Benzoic Acid 26.4 KJ/g 30 g

217c 2,2,4-Trimethylpentane 47.7 25 mL

2152 Urea -10.5 30 g

Solution Calorimetric

SRM Type

Wt/Unit

(grams)

724a Tris(hydroxymethyl)aminomethane

(Hydrochloric Acid and Sodium Hydroxide Solution Calorimetry)

50

1654 a-Quartz (Hydrofluoric Acid Solution Calorimetry) 25

1655 Potassium Chloride (Water Solution Calorimetry 30

Heat Source Calorimetric

SRM Type

Wt/Unit

(grams)

1651 Zirconium-barium chromate heat source powder (ca 350 cal/g) 50

1652 Zirconium-barium chromate heat source powder (ca 390 cal/g) so 1653 Zirconium-barium chromate heat source powder (ca 425 cal/g) 50

93
Calorimetric (Continued)

Enthalpy and Heat Capacity

SRM Type Temperature Range (K) Unit Size

705 Polystyrene, powder 10-350 5g

720 Sapphire, (synthetic A1 2 0,) small rods 0-2250 15 g

781-D1 Molybdenum, sintered rod 273.15-2800 10 cmXO.32 cm D

781-D2 Molybdenum, sintered rod 273.15-2800 10 cm X 0.64 cm D

782 Tungsten, rod 273-1200 10 cmx0.32 cm D

1475 Polyethylene, powder 5-360 50 g

Vapor Pressure

These SRM's are intended for use in the testing and calibration of vapor pressure measurent apparatus and

techniques.

mmmmmmmmmmmmmmmmmmmmmmmmmti —wi¥mmmmmmmmmmmmmmmmmm^mmmmmmmmmmmmm

SRM Type

Pressure Range

(atmosphere) Temperature Range (K) Unit Size

745 Gold 10" 3 to 10" s 1300-2100 Wire 1 .44 mm X 1 52 mm

746 Cadmium 10"4 to 10

" 350-594 Rod 6.4 mmx64 mm

748 Silver 10

3 to 10" 12 800-1600 Rod 6.4 mm X 64 mm

Thermal Conductivity

SRM's 1450b and 1451 are intended for use in calibrating and verifying guarded hot-plate apparatus (ASTM

C177) and heat-flow meters (ASTM C518) used to determine the thermal resistance of thermal insulation

materials. SRM's 1460 through 1468 cover the high to low conductivity range of metals and are useful in

intercomparing and calibrating thermal conductivity apparatus.

^^mmiimmmmmn'r^ \ vwm i i nmiii inn trrrwmnTmmr^^ " 1

i iMHiIihiw i inh i' wn 1 1 1 1 1niii

SRM Type Dimension (mm) Temperature Range (K)

Conductivity at 293 K (w/m«K)

1450b Fibrous Glass Board 60x60x2.54 260-330 0.03

1451 Fibrous Glass Batt 60x60x2.54 260-330 0.039

1460 Stainless Steel 6.4 D, 50 length 5-1200 14.1

1461 Stainless Steel 12.7 D, 50 length 5-1200 14.1 1462 Stainless Steel 34 D, 50 length 5-1200 14.1

1463 Electrolytic Iron 6.4 D, 50 length 6-1000 77.9

1464 Electrolytic Iron 31.7 D, 50 length 6-1000 77.9

1465 Sintered Tungsten 3.2 D, 50 length 4-3000 173

1466 Sintered Tungsten 6.4 D, 50 length 4-3000 173

1407 Arc-Cast Tungsten 8.3 D, 50 length 4-3000 173

1468 Arc-Cast Tungsten 10.2 D, 50 length 4-3000 173

94
Thermal Expansion

These SRM's cover the temperature range from 20 to 1800 K having coefficients of thermal expansion over

the range of 0.5 to 17 X 10"6 K.

SRM Type Temperature Range (K) Diameter (mm) Length (mm)

731-Ll Borosilicate Glass 80-680 6.4 51 731-L2 Borosilicate Glass 80-680 6.4 102

731-L3 Borosilicate Glass 80-680 6.4 152

736a Copper (IN PREP) 20-800 6.4 51 737 Tungsten 80-1800 6.4 51

738 Stainless Steel 293-750 6.4 51 739-L1 Fused Silica 80-1000 6.4 51 739-L2 Fused Silica 80-1000 6.4 102

739-L3 Fused Silica 80-1000 6.4 152

Thermocouple Materials

These SRM's are intended to serve as a convenient mechanism for the comparison of manufactured wire to standard reference thermocouple tables.

SRM Type Form

733 Silver-28 Atomic Percent Gold Wire: 32AWG(0.2019 mm D, 3 meters long

1967 Platinum, High-Purity (99.999+%) Wire: 0.51 mm D, 1 meter long

fVlciortcdc

Magnetic Susceptibility

These SRM's are intended for use in the calibration of instruments used to measure magnetic susceptibility.

SRM Type Form/Unit

763-1 Aluminum Cylinder 3 mm diameter X 3 mm

764-1 Platinum Cylinder 3 mm diameter • 3 mm

765-1 Palladium Cylinder 3 mm diameter * 3 mm

766-1 Manganese Fluoride Cube 3x3x3 mm

Magnetic Moment

This SRM is intended for the calibration of instruments used to measure magnetic moment.

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

SRM Type Size

772 Nickel Sphere 2.4 mm D

95
Paramagnetic Resonance

This SRM is intended for use in electron paramagnetic resonance (EPR) measurements for determining the

number of active paramagnetic centers in a test sample. This SRM consists of two pieces of synthetic ruby.

SRM Type Form

2601 Crystalline A1203

; Cr3+ (Ruby), Set of two pieces 1.5x 1.5x0.5 mm

0.5x0.5x4 mm

Optical

Spectrophotometric

Filters for Spectrophotometry and Luminescence

The spectrophotometric SRM's are intended primarily for use in verifying the accuracy of the transmittance

scale of spectrophotometers. The luminescence SRM provides relative emission spectra to determine spectral

responsivity and to verify the accuracy of spectrofluorimeters. All of these SRM's provide a means of

interlaboratory comparison of data.

Glass Filters: SRM 930D

This SRM consists of three neutral glass filters. The glass filters have transmittances of approximately 10, 20,

and 30 percent. Each filter is individually calibrated and certified for absorbance and transmittance at wavelengths of 440, 465, 546.1, 590, and 635 nm. The 546.1 nm wavelength coincides with the mercury

emission line. Unit: Set of 3 filters, 4 holders.

Liquid Filters: SRM 931C

These filters are absorbance standards for use in ultraviolet and visible spectrophotometry. This SRM

consists of three sets of four vials, each containing a blank solution and three solutions of different

concentrations of an absorbing liquid. Each vial contains approximately 10 mL of solution. The net

absorbances are certified for each concentration at wavelengths 302, 395, 512, and 678 nm. Unit: Set of 12

vials.

Quartz Cuvette: SRM 932

This SRM is an all-quartz rectangular parallelepiped cuvette designed to fit the holder of conventional

spectrophotometers. The distances between the parallel, optically-transparent windows are measured at 10

positions along the vertical axis. The cuvettes range in pathlength between 9.97 and 10.03 mm, and the inner

surfaces of the opposite windows are parallel within ±0.002 mm. Each cuvette is certified for pathlength and

parallelism of the windows to within ±0.0005 mm. Unit: 1 each.

Potassium Dichromate: SRM 935

This SRM consists of crystalline potassium dichromate of established purity certified for use as an ultraviolet

absorbance standard. Solutions made with this SRM in 0.001 N perchloric acid are certified for their

apparent specific absorbances, ea

, at 23.5 °C and wavelengths of 235, 257, 313, 345, and 350 nm. Unit: 15

grams.

Quinine Sulfate Dihydrate: SRM 936

This SRM consists of powdered quinine sulfate dihydrate of known purity certfied for use as a spectrofluorimetric emission standard. A solution made with this SRM in 0.1 N perchloric acid is certified for

its molecular emission spectrum, E(g) at 25.0 °C over the wavelength range of 375.0 to 675 nm. Unit: 1 gram.

Didymium-Oxide Glass Filters: SRM's 2009 and 2010

These wavelength SRM's are for use in checking the wavelength scale of spectrophotometers between 400

and 760 nm for bandpasses between 1.5 and 10.5 nm. SRM 2009 is approximately 1 cm wide by 3 cm high

and is supplied in a holder which fits in the place of a standard analytical cuvette. SRM 2010 is in the form of

a square approximately 5.1 cm by 5.1 cm.

96
Spectrophotometry (Continued)

Glass Filter: SRM 2030

This SRM consists of one neutral glass filter. It is intended as a reference source for one-point verification of

the transmittance and abso bance scales of spectrophotometers at a wavelength of 465 nm and a nominal 30

percent transmittance. Unii : 1 filter, 2 holders.

Metal-on-Quartz Filters: SRM 2031

This SRM consists of three filters mounted in metal holders and an empty holder; all holders are equipped

with shutters. Two of the filters have an evaporated layer of semitransparent metal sandwiched between two

quartz plates that have been assembled by optical contact. The third filter consists of two clear quartz plates

assembled by the same technique. Each filter is individually calibrated at 250, 300, 340, 400, 465, 546, 590, and

635 nm. Unit: Set of 3 filters, 4 holders.

Potassium Iodide: SRM 2032

This SRM consists of crystalline KI of established purity for use as a stray light standard in the ultraviolet.

Aqueous solutions made with this material are certified for their specific absorbance at 23.5 °C over a wavelength range from 240 to 280 nm. Unit: 25 grams.

Potassium Iodide with Attenuator: SRM 2033

SRM 2033 consists of the same material used for SRM 2032 plus a reference beam attenuator for extending

the dynamic range of the stray light test.

SRM Type Unit

930D Glass Filters for Spectrophotometry Set: 3 filters, 4 holders

931c Liquid Filters for Spectrophotometry Set: 12 vials 932 Quartz Cuvette for Spectrophotometry 1 each

935 Crystalline Potassium Dichromate for

Use as an Ultraviolet Absorbance Standard

15 grams

936 Quinine Sulfate Dihydrate 1 gram

2009 Didymium-oxide glass 1 filter in holder

2010 Didymium-oxide glass 51x51 mm

2030 Glass Filter for Transmittance Measurement 1 filter. 2 holders

2031 Metal-on-Quartz Filters for Spectrophotometry Set: 3 filters. 4 holders

2032 Potassium Iodide for Use as a Stray Light Standard 25 grams

2033 Potassium Iodide with Attenuator for Use as Stray

Light Standard

IN PREP

For further information regarding calibration services, call 301-921-2805.

Reflectance

These SRM's are intended primarily for calibration of the reflectance scale of integrating sphere

reflectometers used in evaluating materials for solar energy collectors and for calibration of reflectometers

used in evaluating the appearance of polished metals and metal plated objects.

97
Specular Spectral Reflectance

SRM's 2003a and 2008a are first-surface mirrors of vacuum deposited aluminum and gold, respectively on

glass that are certified for near-normal reflectance over the wavelength range of 250 to 2500 nm. SRM's 2023,

2024 and 2025 are second-surface mirrors of vacuum deposited aluminum on a fused quartz plate and covered

with a second plate of fused quartz. These mirrors are also certified for near-normal reflectance from 250 to 2500 nm and for a few wavelengths at 15, 30, 45 and 60 degrees from normal. SRM 2025 has a small angle

between the front and rear surfaces.

SRM Type Size

2003a First Surface, Aluminum on Glass 5.1 cm D

2008a First Surface, Gold on Glass 5.1 cm D

2023 Second Surface, Aluminum on Fused Quartz 5.1x5.1 cm

2024 Second Surface, Aluminum on Fused Quartz 2.5X 10.2 cm

2025 Second Surface, Aluminum on Fused Quartz with wedge 2.5X 10.2 cm

For further information regarding calibration services, call 301-921-2805.

Directional-Hemispherical Reflectance

SRM's 2015 and 2016 are made from opal glass and are certified for near-normal reflectance from 400 to 750 nm. SRM's 2019a and 2020 are white ceramic tiles certified from 350 to 2500 nm. SRM's 2021 and 2022 are black porcelain enamel squares certified from 280 to 2500 nm. These last four SRM's are primarily certified

for near-normal reflectance but are also certified for reflectance at a few wavelengths at 15, 30, 45 and 60

degrees from normal.

SRM Type Size

2015 Opal Glass 2.5x5.0x0.64 cm

2016 Opal Glass 10X 10x0.64 cm

2019b White Ceramic Tile 5.1X5.1X0.81 cm

2020 White Ceramic Tile 3.8x7.6x0.81 cm

2021 Black Porcelain Enamel 5.1 X5.1 X0.20 cm

2022 Black Porcelain Enamel 2.5x2.5x0.20 cm

For further information regarding calibration services, call 301-921-2805.

Samuel Jones examines SRM 475, Optical

Microscope Linewidth Measurement Standard, used in calibrating optical microscopes that measure linewidths from 0.5 to 10 fim.
Refractive Index

SRM's 21 lc and 217c are certified for refractive index at 20, 25 and 30 °C, from 435.8 to 667.8 nm for seven

wavelengths, and are available in 5 and 25 mL ampoules.

SRM's 1820 and 1822 are certified for refractive index at thirteen wavelengths from 404.7 nm to 706.5 nm. These SRM's are designed for calibrating refractometers and certifying refractive index immersion

liquids, and should provide a basis for accurate measurements of refractive index and dispersion. They consist

of two rectangular glass slabs: one slab has polished faces and is to be used to check the performance of a refractometer; the second slab is unpolished and can be broken into fragments to certify the refractive index

of immersion liquids by microscope methods.

SRM 1823 consists of two silicone liquids that are chemically and thermally stable. The liquids are miscible and span the refractive index range of a variety of glasses and glass fibers that are examined

microscopically by immersion techniques. Used independently, the liquids are suitable for the calibration of

refractometers. These liquids are certified for refractive index at ten wavelengths from 435.8 to 667.8 nm, at temperatures of 20, 40, 60, and 80 °C.

SRM Type n

20

211c Toluene 1.497 217c 2,2,4-Trimethylpentane 1.391 1820 Glass (Borosilicate) 1.488 1822 Glass ( Soda-Lime

)

1.518 1823-1 Silicone Liquid (I

)

1.518 1823-11 Silicone Liquid (II

)

1.559

NBS uses its research reactor for a variety of

research work, including the analysis of

environmental and biological SRM's. Thomas

Gills inserts a sample into the reactor.

99
Optical Rotation

These SRM's are intended for use in calibrating or checking polarimetric apparatus. In aqueous solution the

optical rotation of SRM 17c is certified at three wavelengths, while that of SRM 41b is certified at two

wavelengths. SRM 41b is also certified at one wavelength in a dimethyl sulfoxide solution.

IIIIIM^^

SRM Type Optical Rotation In Aqueous Solution Unit Size

17c Sucrose 712 mrad 60 g

41b Dextrose 1091 mrad 70 g

Radioactivity

Information regarding radioactivity SRM's appears on it or its container. A Certificate containing pertinent

information on the SRM is sent under separate cover; a photocopy of the certificate is sent with the SRM.

Copies of these Certificates and information concerning the applications of these SRM's are available on

request to the NBS Office of Standard Reference Materials. These materials are shipped only by express or

air freight (shipping charges collect). The prices of SRM's may change as current stocks are depleted and are replaced. Purchasers will be billed at the prices in effect at the time of shipment.

The stated uncertainties of the older standards are, in general, an estimate of the standard deviation

added to an estimate of maximum possible systematic error. The total uncertainties for more recent standards

are based on the 99-percent confidence interval for the random uncertainty, with the same estimate of

systematic error. The amount of a radionuclide in an SRM, at a specified time, is stated as (1) the number of atoms (or

the mass, for radium standards), (2) the activity, Or "decays per second", or (3) the emission rate of a

particular radiation, depending on the method of calibration or the intended use. For solution standards, the

quantity is usually specified per gram of liquid, with the supposition that users will gravimetrically dispense or dilute the material to duplicate their usual counting conditions. The active portion of gamma-ray "pointsource" standards is usually restricted to the central few millimeters of a low-mass, low-Z support in order to minimize scattering. Standards of alpha-particle-emitting radionuclides are deposited or plated on metal

backings.

The unit for activity has traditionally been the curie (Ci), but simpler relations between activity,

emission rate, and counting rate result if the current SI (International System of Units) unit "1 per second" is used. This is symbolized as "s"

1 " and has been given the special name becquerel (Bq). The relationship

between the curie and the becquerel is 1 Ci = 3.7x 10

10 Bq.

Many SRM's are measured and certified in terms of emission rate. If the fraction of radioactive decays

which give rise to a specific radiation is known, the emission rate for that radiation can be deduced from the

measured activity, and conversely, the activity may be deduced from the measured emission rate. Suggested

values for probabilities per decay for the more intense radiations usually accompany each SRM, or can be

obtained from the Radioactivity Group. In this catalog as ', /3 s"

1

, /3 + s~\ Kxs" 1

, and ys"' are used for the

emission rates of alpha particles, negatrons, positrons, K x-rays, and gamma rays, respectively.

The SRM's listed below, not marked with an asterisk (*), may be ordered singly, without a license,

under the general licensing provisions of the Atomic Energy Act of 1954. Those marked by an asterisk are

available only under the special licensing provisions of the Atomic Energy Act of 1954.

Note: Certain radionuclides are not economical to maintain in stock because of short half lives or low

demand. When sufficient demand exists, based on letters of inquiry, these materials are prepared and those

100
who have expressed interest are notified of their availability. If you need any radionuclides not listed, contact

the Radioactivity Section, Room CI 14, Radiation Physics Building, National Bureau of Standards,

Washington, DC 20234 (Telephone: 301-921-2665).

In addition, chemically stable solutions of most radionuclides, including those no longer issued by

NBS or that are currently out of stock, may be sumbitted to NBS for calibration as described in "Calibration

and Related Measurement Services of the National Bureau of Standards," NBS Special Publication 250

(1980). Requests for these tests should be submitted, with full source information for approval of suitability, to the Radioactivity Section.

Alpha-Particle, Beta-Particle, Gamma-Ray, and Electron-Capture Solution

Approximate activity, per gram, Approx. Mass of Overall

at time of calibration (month/year) Solution Uncertainty

SRM Radionuclide (Bq s"

1 ) (g) (%)

4229 Aluminum-26 39 11/71 4.6 + 1.1 4251B* Barium- 133 5X 10

5 1/82 5 1.4 4245 Carbon- 14 4x 10

5 5/74 5 1.0 4246 Carbon- 14 4X 10

4 5/74 5 0.9 4250B* Cesium-134 2X 10

6 4/82 5 1.2

4233B* Cesium-137, Barium-137 m 7xl05 8/79 5.1 1.4 4943 Chlorine-36 1 x 10

4 4/62 3 2.3 4422L* Chlorine-36 4 a 10

4 4/80 5.1 1.6 4915D* Cobalt-60 6 10

5 5/80 5 0.7 4370B* Europium- 152 2 < 10

? 6/79 5 1_5

4926C Hydrogen-3 3 X 10" 9/78 18 0_6

4947 Hydrogen-3 1 X 10

5 9/78 4 1.0 4361 Hydrogen-3 1.3 9/78 490 0.9 4949B Iodine- 129 7X103 1/82 1 1.9 4257* Manganese-54 6X 10

5 4/79 5 1.0

4226* Nickel-63 2X 10

6 5/68 4.1 1.0 4331* Plutonium-239 6sV 3/75 2 1.0 4338* Plutonium-240 18 s-'g"

1 4/80 5 1.0 4334B* Plutonium-242 27 s-y 5/79 5 0.9 4945D* Strontium-89 5x 10

4 11/82 5 1.5 4288* Technetium-99 4x 10

4 11/82 5 1.6

Long-Lived Mixed Radionuclide:

4276B* Antimony-125 1.2 X 10

4 6/83 5 Europium- 154 1.5 x 10

4 6/83

Europium-1 55 7X 10

3 6/83

*License certification is required by NBS for these radionuclides.

101
Alpha-Particle Point-Source

These SRM's consist of a practically weightless deposit of the nuclide on a thin platinum foil cemented to a monel disk.

SRM Radionuclide

Approx. a-particle-emission rate into 2tt geometry and/or approx. activity at time

of calibration (month/year)

Overall uncertainty

(%)

4904F* Americium-241 30tol.3xl0V 2/82 1.0 to 1.3 4907* Gadolinium-148 6Xl02 to3X10V 8/79 0.7 to 1.6 4906B Plutonium-238 4X 10

2 to 4X 10V 7/78 0.7 to 2.2

*License certification is required by NBS for these radionuclides.

Radiocarbon Dating and Ground Water Studies

Contemporary Standard for Carbon-14 Dating Laboratories

SRM Material Description

4990C Oxalic Acid One-half pound of oxalic acid taken from specially prepared material

for use as a common contemporary standard against which worldwide measurements can be compared.

Low-Level Tritiated-Water Standard

SRM Material Description

4361 Hydrogen-3 Contains 490 grams of 3 H-H2 0 in a flame-sealed bottle. The

radioactivity concentration was 1.312 Bq g~', as of the

date of the most recent gas-counting measurement—September 3, 1978. The total uncertainty in this value is 0.85%.

Melody Smith calibrates SRM 930D, Glass

Filters for Spectrophotometry. This SRM is a

reference source for the verification of the transmiltance and absorbance scales of

spectrophotometers.

102
Gaseous Radioactivity

SRM Radionuclide

Approximate activity or radioactivity

concentration at time of calibration (month/year)

Approx.

Vol.

(cm3

)

Approx.

Pressure

(atm)

Overall

Uncertainty

(%)

4935C Krypton-85 5X 10

7 s-'mol"' 3/74 10 1 ±0.9

rvl ypLUIl- o

J

1X107 s"' 11/74 %j

11

1

1 .z1 4308C Krypton-85 1.6 • 10

6 s: 11/79 30 0.3 3.1 4309G* Xenon- 127 3x 10

6 s 11/82 30 0.3 2.1 43071* Xenon-133 2xl06 s

_1 time of

dispatch

30 0.3 2.2

4415LI* Xenon- 133 1.5 x 10

8 s"1 time of

dispatch

5 0.1 1.5

Mixed-Radionuclide Gas:

4310B* Krypton-85 30 2.5 Xenon-127

Xenon-133

1.7

1.6

•"License certification is required by NBS for these radionuclides.

Gamma-Ray and X-Ray Point-Source

This group of Standard Reference Materials is usually prepared by depositing the radioactive material and

sealing it between two layers of polyester tape, mounted on an aluminum ring. Exceptions to this procedure

are americium, and thorium SRM's. SRM 4213, americium-241 is prepared by electroplating americium onto

a 0.010-cm thick platinum foil, which is covered with a 0.005-cm thick aluminum foil. The aluminum-covered

source is sandwiched between two layers of 0.036-cm thick polyurethane film tape. SRM 4206c, thorium-228,

is prepared by depositing and sealing the radionuclide between two layers of gold foil and this sandwich is then sealed between two double layers of polyurethane-film tape.

Blll ll M^ ITIIIM^

SRM Radionuclide

Principal

Photon Energy

(MeV)

Approximate activity, s~ , at time

of calibration (except MRN)

(month/year)

Overall

Uncertainty

(%)

4213* Americium-241 0.060 3X105 2/70 ±2.8

4241 B* Barium- 133 0.081 8X 10

4 1/81 1.4 4200B Cesium- 137, Barium- 137m 0.662 4X 10

4 9/79 1.6 4207 Cesium- 137, Barium- 137m 0.662 3X105 9/79 1.6 4218E* Europium- 152 0.122 to 1.408 5X 10

4 to 5X 105 11/82 1.5

4997E Manganese-54 0.835 3x 10

5 4/79 L0

420 IB Niobium-94 0.702 to 0.871 5X 10

3 4/70 1.5 4206C* Thorium-228 2.615 8X 10

4 11/80 2.0

Long-Lived Mixed Radionuclide:

4275B Antimony- 125-Tellurium-125m, 0.027 to 1.274 5X104 9/80

Europium- 154 6X104

Europium- 155 3X 10

4

*License certification is required by NBS for these radionuclides.

103
Low-Energy-Photon Point-Source

These SRM's consist of a thin-layer deposit of the radionuclide on a thin stainless steel or platinum foil cemented to a monel disk.

SRM Radionuclide

Principal

Photon Energy

(MeV)

Approx. emission rate at time

of calibration (month/year)

Overall

Uncertainty

(%)

4266 Vanadium-49 0.0045 2xl04 2/81 ±2.3

K-Xs~' steradian 1

4260C Iron-55 0.0059 2X104 11/82 1.8 K-Xs 1 steradian 1

4264B Tin-121m, Antimony-121 0.0372 5xl02 s"' 11/82 3.0

Radium-226 Solution

Radon Analysis

These samples are contained in flame-sealed glass ampoules.

Approx. Mass Overall

of Solution Uncertainty

SRM Nominal Radium Content (g) (month/year) (g) (%)

4952B Blank Solution 8/76 20 ±68

4953C 10~8 4/78 10.3 1.3

Gamma-Ray Solution

These samples are contained in flame-sealed glass ampoules.

Approx. Mass Overall

of Solution Uncertainty

SRM Nominal Radium Content (g) ( month/year) (g) (%)

4956 2X 10~7 9/67 5.1 ±4.4

4957 5 X

10~ 7 9/67 5.1 1.8 4958 IX 10" 9/67 5.1 1.8 4959 2 10" 9/67 5.1 1.3 4960 5X 10" 9/67 5.1 1.3

4961 1 X 10" 5 9/67 5.1 1.1 4962 2 10" 9/67 5.1 1.1 4963 5X 10" 9/67 5.1 1.1 4964B 1 x 10"4 6/65 5.2 0.5

104
Environmental Natural Matrix Standards for Traceability Tests

SRM 43SOB—Columbia River Sediment

This material was collected from a river downstream from a nuclear reactor facility. Concentrations of fission

and activation products are elevated over typical world-wide levels.

239/240pu and 241 Am are very

homogeneously distributed through the sample and are in soluble chemical forms. Inhomogeneity is 3 percent or better for other radionuclides.

SRM 4351—Human Lung

This material contains radioactivity concentrations on the order of 10"4 Bq g

'. It has been freeze-dried,

cryogenically ground, homogenized, and packed in a glass bottle under vacuum. There is significant

inhomogeneity in

239/240pu which is unavoidable because plutonium was taken into the lungs in particulate

form. Assessments of accuracy of measurement technique can be improved by averaging over several

samples.

SRM 4352—Human Liver

This material contains radioactivity concentrations on the order of 10"4 Bq g"'. It has been freeze-dried,

cryogenically ground, homogenized, and packed in a glass bottle under vacuum. SRM 4353—Rocky Flats Soil Number 1 This material was collected within 13 centimeters of the soil surface at Rock Flats, CO. 239 Pu and 241 Am

concentrations are about an order of magnitude higher than typical world-wide levels. Approximately 10

percent of the plutonium is in a refractory chemical state. The material also contains "hot" particles and a

statistical method is provided for dealing with these. Inhomogeneities, excluding hot particles, are on the

order of 3 percent or better.

SRM 4355—Peruvian Soil

This material, which has been the subject of a trace-element study, has non-measurable radioactivity

concentrations for many fallout radionuclides and can be used as a blank or for sensitive tests of

radioanalytical procedures at low-radioactivity concentrations for other radionuclides. The results of the

trace-element study are given for 57 elements.

RM 45B—River Sediment

This material contains radioactivity concentrations of roughly an order of magnitude greater than SRM

4350B. The values, however, are uncertified although the inhomogeneity is better than 3 percent for all radionuclides. This material can be used for routine checking for reproducibility of results after tests have

been performed with SRM 4350B.

Radiopharmaceutical

Half Approximate Radioactivity Overall

SRM Radionuclide Life at Time of Dispatch Uncertainty

4400LF* Chromium-5

1

27.704 d IX 10" ±1.8

4408LC* Cobalt-57 270.9 d 8 in 1.6 4416LD* Gallium-67 78.26 hi 3 10" 1.7 442 1L* Gold- 195 183 d 5X105 2.3 4405LB* Gold-198 2.696 d 4x 10

h 1.7

4417LC* Indium-1 1

1

2.83 d 3X 10

h 1.3 4414LC* Iodine-123 13.2 hr 6x 10

7 1.5 4407LH* Iodine-125 60.14 d 8X 10

5 2.0 4401 LI* Incline- 1 3

1

8.04 d 1 X io

h 1.7 441 1LB* Iron-59 44.529 d 8x 10

5 1.5

4420L* Lead-203 52.05 hr 3X 10" 1.7 4418L* Mercury-203 46.60 d lxio6 1.0 4412LH* Molybdenum-99, Technetium-99m 66.0 hr 2x 10" 1.8 44061 c;* Phosphorus-32 14.29 d lxio6 1.4 4409LD* Selenium-75 1 19.8 d 1 10

h 2.5

105
Radiopharmaceutical (Continued)

SRM Radionuclide

Half

I ifo Lilt*

Approximate Radioactivity

at Time of Dispatch

Overall

Uncertainty

4403LB* Strontium-85 64.84 d 1 10" 1.4 4410HI* Technetium- 99m 6.02 hr 2X 10" 1.8 4404LF* Thallium-201 3.044 d 2x 106 2.0 4402LC* Tin- 1 1 3, Indium-113m 115.1 d 8X 10

5 3.1 441 5LI* Xenon 1 ?3 5.245 d 5X 10" s'

1 total 1.4 4419LB* Ytterbium- 169 32.01 d 2X106 2.5

*License certification is required by NBS for these radionuclides.

Special Nuclear Material Packaging

SRM Type Description

9910 Special Nuclear Material Package Lead Container, 2 1/2x6 inches

NOTE: This material may be necessary to fill your order, depending upon Department of Energy, Department

of Transportation, and Nuclear Regulatory Commission shipping requirements.

Catalyst Package for Lubricant Oxidation

SRM 1817 is intended primarily for use in evaluating the oxidation stability of lubricating oils, i.e., automotive crankcase lubricants. The SRM contains: (1) an oxidized/mitrated fuel fraction, (2) a metal

naphthenate mixture, and (3) distilled water. The metal naphthenate mixture has the following weight

percentages of metal naphthenates: lead-82, iron-7, copper-4, manganese-3.5, and tin-3.5. SRM 1817 is available as a kit of 5 ampoules of each of the three components. The fuel and metal catalysts are sealed

under inert atmosphere to ensure their stabilities.

Metallurgical

SRM 493 is intended for calibration x-ray diffraction equipment to determine the relative amounts of iron

carbide in steel. SRM's 485a, 486, 487, and 488 are intended for the calibration of x-ray diffraction equipment

used in determining the amount of reatined austenite in ferrous materials.

TTTTTITIIIIMWMMIIII^^

SRM Type Form

485a Austenite in Ferrite 5% Disk

486 • Austenite in Ferrite 15% Disk

4S7 Austenite in Ferrite 30% Disk

488 Austenite in Ferrite 2% Disk

493 Spheroidized Iron Carbide (Fe,C) in Ferrite Wafer: 29x29x2.4 mm

IVIc^ssfoauier

These SRM's are issued for the calibration of the isomer shift of iron compounds and alloys and to provide a uniform basis for presentation of Mossbauer isomer shift data.

SRM Type Form

493 Spheroidized Iron Carbide (Fe,C) in Ferrite Wafer: 29x29x2.4 mm

1541 Iron Foil Foil: 2.5 cmX2.5 cmX23 /urn

106
Abrasive Wear

SRM 1857 is a D-2 tool steel block that is issued for use in the dry sand/rubber wheel abrasion test according

to ASTM G65, Procedure A.

HIPIIIlllIMM^

SRM Type Form

1857 D-2 Tool Steel 2 blocks; 7.8x25x76 mm

Pitting or Crevice Corrosion

SRM 1890 is a 316L stainles steel rod that is issued for use in evaluating the pitting or crevice corrosion of

surgical implant materials according to ASTM F746.

SRM Type Form

1890 316L Stainless Steel Rod and Teflon Collar 4 sets; 6.4 mm D, 25.4 mm long

X-ray Fluorescent Emission Target

This SRM is intended for use in determining the detector window absorption in semiconductor x-ray

spectrometers according to ANSI-IEEE Standard STO 759. When excited by a

55 Fe source this glass target

will emit fluorescent x-rays in the range 1.0 to 5.2 keV.

SRM Type Form Unit Size

477 Glass Fluorescence Source Disk 2x25 mm D

X-ray Diffraction

SRM's 640a, 674, and 675 are powdered materials to be used as internal standards for powder diffraction

measurements. The lattice parameter of SRM 640a has been accurately determined at 25.0 °C using a high

angle goniometer and the NBS tungsten and silver internal standards. The weighted average of the lattice

parameter, uncorrected for refraction, is 5.430825 A. SRM 674 is a set of five oxides for use in the

quantitative analysis (intensity measurement) of materials. SRM 675 (synthetic fluorophlogopite) is a large

d-spacing standard. The lattice parameter is 9.98104 A.

SRM Type Unit Size

640a Silicon Powder 10 g

674 Powder Diffraction Intensity

AliO, (a-alumina) 10 g

CeCK 10 g

Cr203 10 g

TiO, (rutile) 10 g

ZnO 10 g

675 Powder Diffraction (Mica) 5g

107
Gas Transmission

SRM 1470 is for use in the measurement of gas transmission rates using a volumetric method (ASTM D1434),

manometric method (ASTM D1434), or coulometric method (ASTM D3985) of measurement. The

permeances of nitrogen, oxygen, carbon dioxide, and helium through this polyester film at 296.15 K are 0.0421, 0.352, 1.722, and 13.79 pmol-s"'-Pa ', respectively.

SRM Type Unit Size

1470 Polyester Plastic Film for Gas Transmission (C02 , He, N2

, and 02 ) 15 sheets, 23 cm square

1*1? eifCfcncc Fuel

SRM's 1815 and 1816 are high purity liquids intended for use in maintaining the integrity of the octane rating

of motor and aviation fuels as specified in the ASTM Manual for Rating Motor, Diesel and Aviation Fuels.

Electrical Resistivity and Conductivity

Metals

These SRM's are useful in evaluating methods of measuring electrical resistance over wide temperature

ranges.

SRM Type Temperature Range Resistivity at 293 K Form

1460 Stainless Steel 5 to 1200 K 80.5 fi.fi.cm Rod 6.4 mm D, 50 mm long

1461 Stainless Steel 5 to 1200 K 80.5 jLtll-cm Rod 12.7 mm D, 50 mm long

1462 Stainless Steel 5 to 1200 K 80.5 /xfi-cm Rod 34.0 mm D, 50 mm long

1463 Iron 6 to 1000 K 10.1 jufi-cm Rod 6.4 mm D, 50 mm long

1464 Iron 6 to 1000 K 10.1 u.fi-cm Rod 31.7 mm D, 50 mm long

1465 Tungsten 4 to 3000 K 5.4 jufi-cm Rod 3.2 mm D. 50 mm long

1466 Tungsten 4 to 3000 K 5.4 jxfi'Ctn Rod 6.4 mm D, 50 mm long

1467 Tungsten 4 to 3000 K 5.4 u.n-cm Rod 8.3 mm D, 50 mm long

1468 Tungsten 4 to 3000 K 5.4 u.fi-cm Rod 10.2 mm D, 50 mm long

Silicon

These SRM's are intended for use in calibrating four-probe, two-probe, and eddy-current test methods.

/: —: r - '

: - mssmm : -m^mmm—— » "'Tr, i n* ii i urm 1 1

n

SRM Type Resistivity Form

1521 1 1 1 p-Type Silicon 0.1 and 10 fi-cm 2 wafers. 51 mm D

1522 1 1 1 n-Type Silicon 25, 75, and 180 fi-cm 3 wafers, 51 mm D

1523 100 and 1 1 1 p-Type Silicon 0.01 and 1 fi-cm 2 w afers, 51 mm D

2526 1 1 1 p-Type Silicon, Spreading Resistance 0.001 to 200 fi-cm 15 to 20 slices 2527 1 1 1 n-Type Silicon, Spreading Resistance 0.001 to 200 fi-cm 15 to 20 slices

2528 100 p-Type Silicon, Spreading Resistance 0.001 to 200 fi-cm 15 to 20 slices 2529 100 n-Type Silicon, Spreading Resistance 0.001 to 200 fi-cm 15 to 20 slices

108
Glass

This SRM is useful in evaluating the ASTM C657 method of determining the dc volume resistivity of glasses.

SRM Type Resistivity Form

624 Lead-Silica Glass 7.6 Gfl-cm 50x50x25 mm

Residual Resistivity Ratio

This SRM is a set of five aluminum rods that are intended for use in checking four-terminal dc and eddy

current decay techniques. The residual resistivity ratio, p(273 K)/p(4 K), is a sensitive indicator of purity and

of the mechanical state of a material.

SRM Type RRR Values Form

769 Aluminum 130, 683, 1205, 2650, and 11,000 6.4 mm D, 52 mm long

Conductivity

These SRM's are intended for use in the calibration of eddy current conductivity meters and of secondary

electrical conductivity standards. Eddy current measurements are used in nondestructive inspection of

conducting materials and in the sorting of alloys for composition and heat treatment.

SRM Type Conductivity Form

1860 Aluminum 60% IACS 44x44x9.5 mm

1861 Aluminum-Copper Alloy 47% IACS 44 X 44 X 9.5 mm

1862 Aluminum-Magnesium Alloy 41% IACS 44x44x9.5 mm

1863 Aluminum-Copper Alloy 30% IACS 44x44x9.5 mm

Nondestructive Evaluation

SRM 1850 is intended for use in checking the performance of liquid dye penetrants and dye penetrant crack

detection techniques. It is a test block that contains four synthetic cracks approximately 0.2, 0.5, 1, and 2 jum

wide.

SRM Type Unit

1850 Penetrant Test Block 1 each

109

Engineering Type

Standards, Research

Materials, and Special

Reference Materials

These SRM's are intended to relate measurements used for production or quality control data to a central

point of reference. The values certified for these materials are in some cases empirical and do not necessarily

relate to the National Measurement System.

Standard Rubbers and Rubber-Compounding

Materials

These SRM's have been prepared to provide the rubber industry with standard materials for rubber

compounding. They are useful for the testing of rubber and rubber-compounding materials in connection

with quality control of raw materials and for the standardization of rubber testing.

Each material has been statistically evaluated for uniformity by mixing rubber compounds and

vulcanizing them in accordance with ASTM Designation D-15 and determining the stress-strain properties of

the resulting vulcanizates. Certificates are issued for the rubbers because the properties of different lots are not the same. Replacement lots of rubber-compounding SRM's impart essentially the same characteristics to rubber vulcanizates so that Certificates are not issued for these SRM's.

Standard Rubbers

SRM Type Wt/Unit Pounds

386h Styrene-butadiene 1500 34 kg 75

388L Butyl 34 kg 75

1495 Butyl (Low Viscosity) 34 kg 75

Rubber Compounding Materials

SRM Type Wt/Unit Pounds

370e Zinc Oxide 8 kg 17.6

37 lg Sulfur 6 kg 13.2 372h Stearic Acid 3.2 kg 7.1 373f Benzothiazyl disulfide 2 kg 4.4 375g Channel Black 28 kg 61.6

378b Oil Furnace Black 28 kg 61.6

382a Gas Furnace Black 32 kg 70.6

383a Mercaptobenzothiazale 3.2 kg 7.1 384d N-tertiary-Butyl-2-benzothiazolesulfenamide 3.2 kg 7.1

David Kelley measures the width of the indentation on SRM's 1893-6, Microhardness Test Block, used to calibrate microhardness indenlers.

Ill
Reference Magnetic Tapes

These SRM's are intended for use in evaluating the performance of magnetic computer tapes and maintaining

control over their production. Each SRM is individually calibrated and certified.

SRM Type Unit

1600 Secondary standard magnetic tape-computer amplitude reference Cassette

3200 Secondary standard magnetic tape-computer amplitude reference Reel/600 feet 3210 Secondary standard flexible disk cartridge-computer amplitude reference Flexible disk

3216 Secondary standard magnetic tape-computer amplitude reference Cartridge

6250 Secondary standard high density magnetic tape-computer amplitude reference Reel/2400 feet

Centerline Drawings for Optical Character

Recognition-B Characters

This SRM is an exact copy of the centerline drawings that uniquely define each printed character shape and

size used in constant strokewidth Style B Optical Character Recognition (OCR-B) applications in accordance

with one or more of the following standards: American National Standard X3. 49-1975, Character Set for

Optical Character Recognition (OCR-B); Federal Information Processing Standards Publication 32-1974,

Optical Character Recognition Character Sets; European Computer Manufacturers Association Standard

ECMA-II for the Alphanumeric Character Set OCR-B for Optical Recognition, 3rd Edition, 1975; and Draft

International Standard ISO/DIS 1073/11, Alphanumeric Character Sets for Optical Recognition.

This standard contains information on the nominal size, strokewidth, tolerance, and relative position of

characters.

SRM Size OCR-B Characters

1901 I 118

The standard being examined bv David Kelley

is SRM 1850, Penetrant Test Block. The

sensitivity and performance of liquid dye

penetrants and dye penetrant crack detection systems, as well as other systems and devices for surface defect detection may be checked by

using this SRM.

112
Sizingt ; Particle Size

SRM's 1003a and 1690 can be used to calibrate various types of particle size measuring instruments including

both light and electrical zone flow-through counters. SRM's 1004, 1017a, 1018a, and 1019a are intended for use in calibrating test sieves.

SRM Type Size (jum) Sieve No. Wt/Unit

1003a Glass Spheres 5-50 IN PREP

1004 Glass Spheres 34-120 400- 140 63 g

1017a Glass Spheres for calibrating 100-310 140- 50 84 g

1018a Glass Spheres sieves 225-780 60- 25 74 g

1019a Glass Spheres 650-1900 25- 12 200 g

1690 Polystyrene Spheres (0.5% wt. concentration in water) -0.9 5 mL vial 1691 Polystyrene Spheres -0.3 IN PREP

Cement Turfoidimetric unci Fineness

This SRM is available to calibrate the Blaine fineness meter according to the latest issue of Federal Test

Method Standard 158, Method 2101 or ASTM Designation C204; to calibrate the Wagner turbidimeter

according to ASTM Designation CI 15; and to determine sieve residue according to ASTM Designation

C430. Each set consists of twenty sealed vials, each containing approximately 10 grams of cement.

SRM Type Certification Unit

114n Portland Cement Residue on 45 u.m, electroformed sieve wet method Set of 20 vials Surface area (Wagner turbidimeter)

Surface area (Air-permeability)

4

V

.A

S- S *

SRM 1690, Nominal One Micrometer

Polystyrene Spheres, is a primary particle size reference standard used for calibration of

particle size measuring instruments including

microscopes.

113
Color

These SRM's are available to illustrate a characteristic color for each of the ISCC-NBS color-name blocks in NBS Special Publication 440, COLOR: Universal Language and Dictionary of Names. SRM 2106 consists of

251 color chips on 18 constant-hue centroid color charts, and constitutes a supplement to SP 440. SRM 2107

combines SRM 2106 with SP 440 to form a complete color kit. The centroid colors represent a systematic

sampling of the whole color solid, each color of which has been carefully measured. Each centroid color has

its own specification and can be used as a color standard. (Note: SP 440, may be purchased separately from

the Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402.)

SRM Type Unit of Issue

2106 Centroid Color Charts Set: 18 Charts

2107 Color Kit Set: SRM 2106 and SP 440

Light-Sensitive Papers and Plastic Chips

Light-Sensitive Papers

Standard light-sensitive paper and booklets of standards faded strips of this paper are available for use in standardizing the dosage of radiant energy when testing textiles for color fastness by exposure in commercial

carbon-arc fading lamps. The paper is distributed in units of 100 pieces 2 5/8 by 3 1/4 inches. The booklet

contains six strips of 1 1/4 in wide that have been faded by exposure in the NBS master lamp. A copy of

NBS Special Publication 260-41, which describes the preparation and use of the materials, is furnished with

each booklet.

SRM Type Unit of Issue

700d Light-sensitive paper Pkg. of 100 pieces—2 5/8 inx3 1/4 in 701d Standard faded strips Booklet—6 strips 1 1/4 in wide

Light-Sensitive Plastic Chips

Standard light-sensitive plastic chips are available for use in calibration and standardization of artificial

weathering and fading apparatus. These chips are distributed in units of five plates 2 in by 4 1/8 in, and have

been standardized by the measurement of the change of transmittance as a function of exposure (in standard

fading hours) to the NBS master lamps.

SRM Type Unit of Issue

703 Light-sensitive plastic chips Package of 5 chips 0.060 in thick

114
X-ray cind Photographic

SRM 1001 is a calibrated x-ray film step tablet of 17 steps that cover the optical density range from 0 to 4. SRM 1008 is a calibrated photographic step tablet of 21 steps that cover the optical density range from 0 to 4. Both step tablets are individually calibrated and certified for diffuse transmission density in

conformance with conditions specified for American National Standard Diffuse Visual Transmission Density,

Dt (90; 3000 K: <10°; V), in "ANSI PH 2.19-1976, American National Standard for Diffuse and Doubly

Diffuse Transmission Measurements (Transmission Density)."

SRM 1010a, Microcopy Resolution Test Charts, is used to test the resolving power of cameras or of

whole microcopying systems. SRM 1010a consists of five charts printed photographically on paper, and have

26 high-contrast five-line patterns ranging in spatial frequency from one cycle per millimeter to 18 cycles per

millimeter. Instructions for the use of the charts are supplied with each order.

SRM 2061 is a calibrated reflection step tablet having 12 steps that cover the optical density range

from 0 to 2 on gray scale paper from white to black. It is intended primarily for use in photographic

applications requiring color balance or separation.

SRM 2061 is calibrated using methods that conform to conditions specified for American National

Standard Annular 45°; 0° Absolute Visual Reflection Density, Type 3000 K, DRa(ga

; 3000 K: <5°; V) in ANSI

PH 2.17-1977.

SRM Type Unit

1001 X-ray Film Step Tablet (0-4) 1 tablet, 17 steps

1008 Photographic Step Tablet (0-4) 1 tablet, 21 steps

1010a Microcopy Resolution Test Chart Set of 5 charts

2061 Reflection Step Tablet 1 tablet, 12 Steps

For further information regarding calibration services, call 301-921-2805.

Surface Flammability

SRM 1002c, Hardboard Sheet, is issued for checking the operation of radiant panel test equipment in accordance with the procedures outlined in ASTM Standard E162-78.

WW»iMill» I I t il li 1 >' i 1 WlilBiNiHimiWii'lU n'P^ B ! H li J W ^I'W'IMBiMI—— 'I 'I li li IMM—IM—IW« lil II IHI H I'llMliBIMHIMlMWWmil

SRM Type Certification Unit of Issue

1002c Hardboard Sheet Flame Spread Index, 1=153

Heat Evolution Factor, Q=36.5

Set of 4: 6 X 18 X 1/4 inch

Smoke Density Chamber

These SRM's are certified for maximum specific optical density and are issued for performing operational

checks of smoke density chambers.

SRM Type Maximum Specific Optical Density Unit of Issue

1006b Non-flaming Exposure Condition (a-cellulose) Dm (corr.) = 183±25 3 sheets

1007a Flaming Exposure Condition (plastic) Dm (corr.) = 17850(t)-132 3 sheets

115
Tape Adhesion Testing

This material is intended as a uniform source of linerboard for use under ASTM Designation D2860,

Procedure A: Adhesion of Pressure Sensitive Tape to Fiberboard at 90 Degree Angle and Constant Stress.

SRM Type Unit

1810 Linerboard for Tape Adhesion Testing Package of 50 sheets

Research Materials

Research Materials (RM's) are distinct from the Standard Reference Materials (SRM's) issued by NBS. The

distinction between RM's and SRM's is in the information supplied with them and the purpose for which

they are used. Unlike SRM's, RM's are not issued with Certificates of Analysis; rather they are accompanied

by a "Report of Investigation," the sole authority of which is the author of the report. RM's are intended

primarily to promote scientific or technical research on a particular material. One of the principal reasons for

issuing an RM is to provide a homogeneous material so that an investigator in one laboratory can be assured

that the material he has is the same as that being investigated in a different laboratory. The following

materials are available:

RM 1C—Ultra-Purity Aluminum Single Crystal Cubes

These cubes are intended for use in studies of a variety of solid state phenomena for which both extreme

purity and knowledge of crystallographic orientation are required; e.g., in studies of electron spin resonance,

De Haas-Van Alphen effect, cyclotron resonance, and in a variety of studies relating to the Fermi surface and

the transport properties of aluminum. Unit of issue: 1 cm on a side.

RM 1R—Ultra-Purity Aluminum Polycrystalline Rods

These rods are intended for use in research on the mechanical and physical properties of extremely pure

aluminum; e.g., in the determination of resistivity as a function of strain at cryogenic temperatures to

facilitate the design of cryogenic magnets or superconductor stabilizing elements. Unit of issue: 4.2 mm in

diameter and 25.4 mm long.

RM 5—Copper Heat Capacity Test Specimen

This material is intended for use in the comparison of heat capacity results from different laboratories and as a test specimen for heat capacity measurement below 25 K. It may also be useful at higher temperatures. RM

SRM 3200, Secondary Standard Magnetic

Tape, Computer Amplitude Reference, is used for calibrating the output signal amplitude

from computer tape recordings and repro- ducing systems. James Park notates readings

during the production of this SRM.

116
5 is available as a rod of high purity polycrystalline copper. Unit of issue: 19 mm in diameter and 120 mm

long.

RM 31—Glass Fibers for Microanalysis

This monogeneous vitreous solid contains known, low-concentration additions of several elements which

were developed for electron probe microanalysis (EMPA) and secondary ion mass spectrometry (SIMS).

This RM contains ten compositions of various oxides. Unit of issue: set of 10. RM 45b—Homogeneous River Sediment

This specimen is a freeze-dried river sediment intended for use in testing radiochemical procedures for the

assay of radioactivity in sediments and soils. Unit of issue: 100 g. RM 50—Albacore Tuna

This material is intended to be used in the measurement of elements present at trace concentration. It has

been issued as a lyophilized (freeze-dried) marine biological tissue sample in an attempt to satisfy many of the

analytical requirements for a base-line marine reference material. The Report of Investigation provides

uncertified informational data on mercury, selenium, zinc, arsenic, lead, and a number of other elements of

interest to marine scientists. Unit of issue: two 35 g cans.

Kevin Rutledge analyzes SRM 1817, Catalyst Package for Lubricant Oxidation. This SRM

evaluates the oxidation stability of lubricating

oils, i.e. automotive crackcase lubricants. SRM

1817 stimulates the chemical environment in an operating engine, specifically under the ASTM sequence IIID engine test conditions.

117
Special Reference Materials

Special Reference Materials (GM's) are distributed by NBS to meet industry needs. These materials have

been standardized either by some Government agency other than NBS, or by some standards-making body

such as the American Society for Testing and Materials (ASTM), the American National Standards Institute

(ANSI), and the Organization for International Standardization (ISO). For this class of materials, NBS acts only as a distribution point and does not participate in the standardization of these materials.

Differential Thermal Analysis

GM's 754, 757, 758, 759, 760, and 761 have been issued by NBS in cooperation with the International

Confederation of Thermal Analysis as standards for calibrating differential thermal analysis, differential

scanning calorimetry, and thermogravimetry equipment under operating conditions.

GM Material Peak Temp. (°C) Unit

754 Polystyrene (glass transition) -105 °C 10 g

757 1 ,2-Dichloroethane (melting point) —32 °C 4 mL

Clycohexane

(transition point) —83 °C 4 mL

(melting point) ~+ 7 °C

Phenyl Ether (melting point) - 30 °C 4 mL

o-Terphenyl (melting point) - 58 °C 5g

758 Potassium Nitrate (transition point) -128 °C 10 g

Indium (melting point) -157 °C 3g

Tin (melting point) -232 °C 3g

Potassium Perchlorate (transition point) -300 °C 10g

Silver Sulfate (transition point) -430 °C 3g

759 Potassium Perchlorate (transition point) -300 °C 10 g

Silver Sulfate (transition point) -430 °C 3g

Quartz (transition point) -573 °C 3g

Potassium Sulfate (transition point) -583 °C 10 g

Potassium Chromate (transition point) -665 °C 10 g

760 Quartz (transition point) -573 °C 3g

Potassium Sulfate (transition point) -583 °C 10 g

Potassium Chromate (transition point) -665 °C 10 g

Barium Carbonate (transition point) -810 °C 10 g

Strontium Carbonate (transition point) -925 °C 10 g

761 Permanorm 3 (magnetic transition) -259 °C 1 g

Nickel ( magnetic transition ) -353 °C 1 g

Mumetal (magnetic transition) -381 °C 1 g

Permanorm 5 (magnetic transition) -454 °C 1 g

Trafoperm (magnetic transition) -750 °C 1 g

118
Melting Point

GM 8000 is issued by NBS in cooperation with the Office of Reference Materials at the National Physical

Laboratory (NPL) in Teddington, England. This set of ten highly purified substances is intended for use in

the calibration of thermometry used in the determining the melting points of samples in glass capillary tubes.

Both the meniscus point and the liquefaction point for each substance are certified by NPL.

GM Type Melting Point Amount

8000 4-Nitrotoluene - 52 °C 1 g

Naphthalene - 80 1 g

Benzil - 95 1 g

Acetanilide -114 1 g

Benzoic Acid -122 1 g

Diphenylacetic Acid -147 1 g

Anisic Acid -183 1 g

2-Chloroanthraquinone -210 1 g

Carbazole -246 1 g

Anthraquinone -285 1 g

Specific Surface Area of Powders

GM's 8001 through 8008 are issued by NBS in cooperation with the Office of Reference Materials at the

National Physical Laboratory (NPL) in Teddington, England. These materials are intended for use in the

calibration and checking of instruments for determining the specific surface area of powders by BET.

GM Type Surface Area Amount

8001 Graphitized Carbon Black 11 mV 10 g

8002 Graphitized Carbon Black 71 10 g

8003 Non-Porous Silica 166 10 g

8004 Meso-Porous Silica 286 10 g

8005 Alpha Alumina 2.1 50 g

8006 Alpha Alumina 0.3 50 g

8007 Alpha Alumina 0.1 50 g

8008 Alpha Alumina 0.8 50 g

Tool Steel Abrasive Wear Standard, SRM

1857, is intended for use with the dry sand/

rubber wheel abrasion wear method as described in ASTM Standard Practice G65-81, Procedure A.

119

Other Services of the National Bureai

The following is a list of some of the services offered by NBS that may be of interest to SRM users. For

general information see the entry on Technical Information and Publications.

Calibration and Related Measurement Services

The measurement services of the National Bureau of Standards include the calibration of standards, test of

instruments, and certain interlaboratory testing programs. These services are listed in NBS Special

Publication 250, Calibration and Related Measurement Services of the National Bureau of Standards.

[Available from the Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402

(1982 edition) for $6.00].

These services are performed at the National Bureau of Standards Washington laboratories

(Gaithersburg, MD) or the National Bureau of Standards laboratories in Boulder, CO.

An abbreviated list of the services offered under this program is given below. For information

concerning services not listed below or in NBS Special Publication 250 contact:

Office of Measurement Services

National Bureau of Standards

Washington, DC 20234

Telephone: (301) 921-2805

Washington Services

AC-DC Wattmeters; AC Resistors; Calibrators and Voltmeters (up to 10 Hz) 301-921-2727

Acoustic Measurements 301-921-3607

Aerodynamics 301-921-3684

Angular 301-921-2216

Complex Standards of Length and Diameter 301-921-2216

Data Converters 301-921-2727

Dosimetry for High-dose Applications 301-921-2201

Dosimetry for High-energy Electron Beams 301-921-2361

Electrical Instruments (AC-DC) 301-921-2216

Flatness, Straightness, and Roundness 301-921-2216

Fluid Quantity and Flow Rate Meters 301-921-3681

Force Transducers and Force Measurement Systems 301-921-3884

Gamma-ray and Beta-particle Sources 301-921-2361

Humidity Measurements 301-921-3748

Image Optics and Photography 30 1-^2 1-2791

Jocelyn Washington is able to respond to customer inquiries about the 1,000 SRM's

available from the Office of Standard

Reference Materials. 121
Washington Services (Continued)

Impedance Measurements 301-921-2715

Laboratory Thermometers 301-921-2087

Length 301-921-2216

Length and Diameter Dimensional Metrology 301-921-2216

Mass 301-921-2461

Near and Vacuum Ultraviolet Radiometric Standards 301-921-2356

Photometric Standards 301-921-3613

Neutron Sources and Dosimetry Standardization 301-921-2767

Precision Apparatus 301-921-2715

Pressure and Vacuum Measurements 301-921-2121

Radiation Thermometry 301-921-3613

Radioactivity 301-921-2665

Radiometric Standards 301-921-3613

Resistance Measurements 301-921-2715

Resistance Thermometers 301-921-2757

Spectrophotometric Standards 301-921-2453

Surface Texture 301-921-2159

Thermocouples and Thermocouple Materials 301-921-2069

Ultrasonic Measurements 301-921-3646

Vibration Measurements 301-921-3607

Voltage, Current, and Power Measurement Devices 301-921-3121

Voltage Measurements 301-921-2715

Volume and Density 301-921-2681

X-ray and Gamma-ray Measuring Instruments 301-921-2361

Boulder Services

All measurement services available in Boulder should be directed to: Measurement Services Clerk

National Bureau of Standards

Boulder, CO 80303

Telephone: (303) 497-3753

Cryogenics

Electromagnetic Quantities

Attenuation

Fields

Impedance or Admittance

Laser Parameters

Noise Temperature (Effective)

Phase Shift

Power Measurements

Voltage

Time and Frequency

Computerized data allows Patricia Brletic to provide information on the availability of an SRM to a telephone customer.

122
Office of Weights and Measures

The NBS Office of Weights and Measures (OWM) operates a Prototype Examination Program which

provides for an evaluation of (1) prototype weighing and measuring devices to determine compliance with

the requirements of NBS Handbook 44, "Specifications, Tolerances, and Other Technical Requirements for

Commercial Weighing and Measuring Devices," (2) standards to determine compliance with the

requirements of NBS Handbook 105-1, 105-2, 105-3 "Specifications and Tolerances for Reference Standard

and Field Standard Weights and Measures." This program may be used by manufacturers and weights and

measures officials in determining the acceptability of devices for commercial use or the suitability of

reference and field standards. For information on programs of NBS and the States, contact:

Office of Weights and Measures

A359, Physics Building

National Bureau of Standards

Washington, DC 20234

(301) 921-2401

Proficiency Sample Programs

General information about the Proficiency Sample Programs may be obtained from:

Proficiency Sample Program

National Bureau of Standards

Washington, DC 20234

(301) 921-3481

Information is available for the following programs:

Proficiency Sample Programs for Hydraulic Cements and Portland Cement Concrete

Proficiency Sample Programs for Soils, Aggregates, and Bituminous Materials

Inspection of Cement and Concrete Testing Laboratories

Inspection of Soils and Bituminous Testing Laboratories
Structural Engineering—High Capacity Testing Machine

The research and testing facilities for structural engineering include a 53-MN (12 million-lbf) capacity

universal testing machine believed to be the largest in the world. A significant addition to the nation's

facilities for research and testing in the field of large structures, this unique machine is available to do work

for the entire technological community upon consideration of requests on a case-by-case basis. This

hydraulically operated machine is a vertical, four screw type with the main fixed platen flush wit the floor. It

is capable of applying 53-MN (12 X 10

6 lbf) in compression to test specimens up to 17 m (58 ft) in height and

27 MN (6x 10 lbf) in tension to specimens up to 16 m (53 ft) in length. To extend the versatility of the

machines, the reinforced concrete foundation incorporates a floor tie-down system which can accommodate

test specimens for transverse loading up to 27 m (90 ft) in length. Calibration of all load ranges indicates that

they exhibit error generally no greater than 0.5 percent of the applied load. For more information please

contact:

Structural Engineering Program

B168, Building Research

National Bureau of Standards

Washington, DC 20234

(301) 921-3471

Accreditation of Testing Laboratories

General information about the National Voluntary Laboratory Accreditation Program (NVLAP) or

application packages may be obtained from:

Laboratory Accreditation Manager

Room B141, Technology Building

National Bureau of Standards

Washington, DC 20234

(301) 921-3431

Information is available for the following specific testing areas: Program for Thermal Insulation Materials

Program for Freshly Mixed Field Concrete

Program for Carpet

Program for Solid Fuel Room Heaters

Program for Personnel Dosimeters Processors

Program for Electromagnetic Calibration Services

Program for Window and Door Products

Acoustical Testing Services

Stanley Rasberry, chief of the Office of

Standard Reference Materials, and William Reed, deputy chief, discuss matters important

to the SRM program.

Lee Kieffer, project manager, Thomas Gills, production manager, and William Reed,

deputy chief, coordinate the development of

each SRMfrom conception to final product.

124
National Center for Standards and Certification Information

The National Center for Standards and Certification Information (NBS-NCSCI) maintains a reference

collection of some 240,000 engineering and related standards issued by U.S. technical societies, professional

organizations, and trade associations; State purchasing offices; U.S. Federal Government agencies; and major

foreign national and international standardizing bodies. NBS-NCSCI publishes general and special indexes of

standards. Information services which are free consist of searching Key-Word-In-Context (KWIC) Indexes to determine whether there are any published standards, specifications, codes, test methods, or recommended

practices for a given item or product. Inquiries should be directed to: National Center for Standards and Certification Information

Room B166, Technology Building

National Bureau of Standards

Washington, DC 20234

(301) 921-2587

National Standard Reference Data System

The National Standard Reference Data System (NSRDS) is a nationwide program established to compile and

critically evaluate quantitative physical science data and assure its availability to the technical community.

The program publishes compilations of critically evaluated data, critical reviews of experimental techniques,

and bibliographies. A complete listing of the publications of the NSRDS is available from the Office of

Standard Reference Data (OSRD). The OSRD responds in a limited way to queries within the scope of the

program by providing references, referrals, documentation, or data, as available. The program's bimonthly

newsletter is available on request. Inquiries or requests for further information should be directed to: Office of Standard Reference Data

A323, Physics Building

National Bureau of Standards

Washington, DC 20234

(301) 921-2104

Foreign orders are processed by Ruth Meyer,

who also answers inquiries regarding foreign

shipments and overdue accounts.

The management of the computer system is handled by Lee Klein, data processing manager. This system is able to process a normal customer order in three days.

J
Guide of Requesting Development of

The National Bureau of Standards has the function to develop, produce, and distribute Standard Reference

Materials (SRM's) that provide a basis for comparison of measurements on materials and that aid in the

control of production processes. To perform this function, the Office of Standard Reference Materials

evaluates the requirements of science, industry, and government for carefully characterized reference

materials, and directs their production and distribution.

NBS currently has over 1000 SRM's available, about 100 new ones in preparation, and requests for the

preparation of many others.

In developing an NBS-SRM, the candidate material must meet one or more of the criteria listed

below.

1. The SRM must permit users to attain more accurate measurements.

2. The production of the SRM elsewhere is not economically or technically feasible.

3. The SRM would be an industry-wide standard for commerce from a neutral source not otherwise

available.

4. NBS production of the SRM would provide continued availability from a common source for a highly characterized material that is important to science, industry, or government.

NBS has recognized and responded to the need to enlarge the scope of the program to include all types of well-characterized materials that can be used to calibrate a measurement system or to produce

scientific data that can be readily referred to a common base. However, the demand for new SRM's greatly

exceeds the Bureau's capacity to produce and certify these materials. Consequently, requests for new SRM's

that would have limited use, or for which the need is not very great, are deferred in favor of requests that

clearly show a critical need. To determine which requests are to receive top priority, NBS needs and heavily

relies upon the information supplied by industry, either through its own representatives or through interested

organizations, such as the American National Standards Institute, American Nuclear Society, American

Petroleum Institute, American Society for Testing and Materials, etc. Accordingly, while the Bureau welcomes all requests for the development of new SRM's, both the

Bureau and industry would be helped if such requests are accompanied by information that will permit an

objective assessment of the urgency and importance of proposed new reference materials.

Requests for the development and new Standard Reference Materials should include as much of the

information listed below as possible.

1. Short title of the proposed Standard Reference Material.

2. Purpose for which the SRM would be used.

3. Reasons why the SRM is needed.

4. Special characteristics and/or requirements for the material. Include additional requirements and

reasons, if more than one SRM is necessary for standardization in this area.

5. Your estimate of the possible present and future (6-10 year) demand for such an SRM in your own

operations and elsewhere. (National and international estimates are very useful.)

6. Whether such an SRM, or a similar one, can be produced by, or obtained from a source other than

NBS. If so, give reasons to justify its preparation by NBS.

7. Miscellaneous pertinent information to aid justification for the SRM, such as: (a) an estimate of

the range of application, monetary significance of the measurement affected, and scientific and/or

technological significance including, when feasible, estimates of the impact upon industrial productivity or growth, and (b) supporting letters from industry leaders, trade organizations, interested committees, and

others. m

Requests should be sent to: Office of Standard Reference Materials

National Bureau of Standards

B311, Chemistry Building

Washington, DC 20234

Dolly Downs prepares the certificates that are supplied with each SRM. This certificate provides the customer with all pertinent information about the SRM, its intended use, and method of certification.
Certified R!el*erenee A/I<iteri£ils fTM 1*0111 Other Sources

Sources of certified reference materials (CRM's) are now world wide. The International Organization for

Standardization (ISO), through its Council Committee on Reference Materials (REMCO), has prepared an

international Directory of Certified Reference Materials. Inquiries may be directed to:

Dr. M. Parkany

Secretary for REMCO

International Organization for Standardization

1, Rue de Varembe

Case Postale 56

1211 Geneva 20

Switzerland

In the period 1972-83, the International Union of Pure and Applied Chemistry (IUPAC), through its Commission on Physicochemical Measurements and Standards, prepared and issued a catalog of CRM's that are useful for the realization of physicochemical properties. It also has prepared a number of related

documents. Information may be obtained by writing:

Dr. K. N. Marsh

Chairman, IUPAC Commission 1.4 Physicochemical Measurements and Standards

The University of New England

Armidale, NSW

Post Code 2361

Australia

The current IUPAC edition is: Physicochemical Measurements: Catalogue of Reference Materials from National

Laboratories, Revised 1976, Pure & Appl. Chem., 48, 503-414 (1976).

Major government and national laboratories which supply CRM's are listed below:

Country National Laboratory

Australia Commonwealth Scientific and Industrial Research Organization

National Standards Laboratory

University Grounds, City Road

Chippendale, NSW 2008

Australia

Brazil Instituto de Pesiquisas Technologicas do Estado de Sao Paulo

S/A—IPT

Divisao de Quimica e Engenharia Quimica

Nucleo de Padroes Analiticos

Caixa Postal 7141

01000 Sao Paulo SP

Brazil

Canada Canadian Certified Reference Materials Project

C/O Mineral Sciences Laboratories, CAMNET

Canada Centre for Mineral and Energy Technology

555 Booth Street

Ottawa, Ontario K1A OG1

Canada

France Bureau National de Metrologie (B.N.M.)

8-10, Rue Crillon

75194 Paris Cedex 04

France

or

Service des Materiaux de Reference

(S.M.R.)

1, Rue Gaston Boissier

75015 Paris

France

127
(Continued)

fiprmfltiv ^Wp^t^ RnnHp<;an*>italt 1 J W 1 lULDull . > I lI 1 L fur 1 111 TS/f 1 VI ^tpnalnriifimo dlL 1 Itl 1 ' 1 LI 1 Li 1 1

r fRAIVT^ \ Ui \ I V J 1 Unter den Eichen 87

D-1000 Berlin 45

Germany, F.R.

Physikalisch-Technishe Bundesanstalt (PTB)

Bundesallee 100

D-3300 Braunschweig

Germany, F.R.

Hungary National Office of Measures

P.O. Box 19

H-1531 Budapest

Hungary

Japan Standards Department

Agency of Industrial Science and Technology

Ministry of International Trade and Industry

3-1, Kasumigaseki 1, Chiyodaku,

Tokyo

Japan

Netherlands Institute for Physical Chemistry TNO

TJtrechtseweEr 48

P.O. Box 108

Zeist

Netherlands

Rijks Institute voor Volkgezondheid

P.O. Box 1 Bilthoven

Netherlands

Poland Division of Physico-Chemical Metrology

National Board for Quality Control and Measures

2, Elektoralna Street

Warsaw

Poland

South Africa South African Bureau of Standards

Private Bag X191

Pretoria, Transvaal 0001

Republic of South Africa

TInitpH \J i 1 1 l ^ LI TCinpHom JLV 1 1 1 gU 1 1

1

National i 1UL1V_y I 1 1 1 I Physical A 11 V Jl \s UX TA—< aboratorv 1 1 KJ \J 1 Ul V/ 1 V Office of Reference Materials

Teddington, Middlesex TW11 OLW

United Kingdom

British Standards Institution

10 Blackfriars Street

Manchester, M3 5DT

United Kingdom

United States National Bureau of Standards

Office of Standard Reference Materials

B311, Chemistry Building

Washington, DC 20234

USA

U.S. Department of Energy

New Brunswick Laboratory

9800 South Cass Avenue, D-350

Argonne, IL 60439

USA

Center for Disease Control

Atlanta, GA 30333

USA

128
(Continued)

USSR Gosstandart

9, Leninsky Prospekt

1 1 /(J4v Moscow

v^uiiiiiJ mil i y Duicdu \ji ivcici cnuc ^jjv_-i\.^

J-/1I CL IU1 aLC VJCllCI al All, V_ 700 R hp Hp la T oi

jj- R 1i 04Q vj'+y Rrnecplc jji Uo^cia

Belgium

pntrci 1 Ri i vt^'A 11 nf Miir*l/=>Qr \/fq c i

i

\wCIlLla.I DUlCau VJl 1> ULlCol IVlCaS UIrpmpntc ClIJCII 15 PntnmKQinTi of* tVip T-Mironp^m f^ommnmtip^

f~ip£»1 V Jl v.. L, 1 pcfah1l*illTTlPTlt L<j I ci ' ' ! 1 t 1 I I I ! L. I ! 1 OlCCllWCg, Dp IVcLlC

R 9440 HppI

Belgium

Tntprnation^l Atomic Fnprtrv A pptipv

A nnl\/tir*ci1 ill i 1 1 1 v \ c\x\ t rol ^f^r\/i r*f*c z\. 1 1 ci i y 1 1 1_ «. i uaii i y v^uii tikji oti vilco

Laboratory Seibprsdorf

A-101 1 Vienna

Austria

D pfprpnpp ^» i

i

IVC1CIC11CC OUUalaJlLCa Hct n ppc

Apotekens Centrallaboratorium

Box 3045

S-171 03 Solna

Sweden

World Health Organization

CH-1211 Geneva 27

Switzerland

Claudia Engel processes foreign orders, handles paperwork for special methods of

payment, and prepares invoices for mailing to customers.

129
Other NBS Publications in the

260 Series

Hudson, C. H., ed., Catalog of NBS

Standard Reference Materials (1984-

85 edition), NBS Spec. Publ. 260

(January 1984).

Michaelis, R. E., and Wyman, L. L., Standard Reference Materials:

Preparation of White Cast Iron

Spectrochemical Standards, NBS

Misc. Publ. 260-1 (June 1964).

COM74-11061**

Michaelis, R. E., Wyman, L. L., and

Flitsch, R., Standard Reference

Materials: Preparation of NBS

Copper-Base Spectrochemical

Standards, NBS Misc. Publ. 260-2

(October 1964). COM7411063**

Michaelis, R. E., Yakowitz, H., and

Moore, G. A., Standard Reference

Materials: Metallographic

Characterization of an NBS

Spectrometric LowAlloy Steel

Standard, NBS Misc. Publ. 260-3

(October 1964). COM74-1 1060**

Hague, J. L., Mears, T. W., and

Michaelis, R. E., Standard Reference

Materials: Sources of Information,

NBS Misc. Publ. 260-4 (February

1965). COM74-11059

Alvarez, R., and Flitsch, R., Standard

Reference Materials: Accuracy of

Solution X-Ray Spectrometric

Analysis of Copper-Base Alloys, NBS

Misc. Publ. 260-5 (March 1965).

PB168068**

Shultz, J. I., Standard Reference

Materials: Methods for the Chemical

Analysis of White Cast Iron

Standards, NBS Misc. Publ. 260-6

(July 1965). COM74-11068**

Bell, R. K., Standard Reference

Materials: Methods for the Chemical

Analysis of NBS Copper-Base

Spectrochemical Standards, NBS

Misc. Publ. 260-7 (October 1965).

COM74-11067**

Richmond, M. S., Standard Reference

Materials: Analysis of Uranium

Concentrates at the National Bureau

of Standards, NBS Misc. Publ. 260-8

(December 1965). COM74-1 1066**

Anspach, S. C, Cavallo, L. M.,

Garfinkel, S. B., Hutchinson, J. M.

R., and Smith, C. N., Standard

Reference Materials: Half Lives of

Materials Used in the Preparation of

Standard Reference Materials of

Nineteen Radioactive Nuclides Issued

by the National Bureau of Standards,

NBS Misc. Publ. 260-9 (November

1965). COM74-11065**

Yakowitz, H., Vieth, D. L., Heinrich,

K. F. J., and Michaelis, R. E., Standard Reference Materials:

Homogeneity Characterization of

NBS Spectrometric Standards II: Cartridge Brass and Low-Alloy Steel,

NBS Misc. Publ. 260-10 (December

1965) . COM7411064**

Napolitano, A., and Hawkins, E. G.,

Standard Reference Materials:

Viscosity of Standard Lead-Silica

Glass, NBS Misc. Publ. 260-11

(November 1966). NBS Misc. Publ.

260-11**

Yakowitz, H., Vieth, D. L., and

Michaelis, R. E., Standard Reference

Materials: Homogeneity Characterization of NBS Spectrometric

Standards III: White Cast Iron and

Stainless Steel Powder Compact,

NBS Misc. Publ. 260-12 (September,

1966) . NBS Misc. Publ. 260-12**

Spijkerman, J. L., Snediker, D. K., Ruegg, F. C, and DeVoe, J. R.,

Standard Reference Materials:

Mossbauer Spectroscopy Standard

for the Chemical Shift of Iron Compounds, NBS Misc. Publ. 260-13

(July 1967). NBS Misc. Publ. 260-

13**

Menis, O., and Sterling, J. T., Standard Reference Materials:

Determination of Oxygen in Ferrous

Materials - SRM 1090, 1091, and

1092, NBS Misc. Publ. 260-14

(September 1966). NBS Misc. Publ.

260-14**

Passaglia, E., and Shouse, P. J., Standard Reference Materials:

Recommended Method of Use of

Standard Light-Sensitive Paper for

Calibrating Carbon Arcs Used in Testing Textiles for Colorfastness to Light, NBS Misc. Publ. 260-15 (June

1967). (Replaced by NBS Spec. Publ.

260-41.)

Yakowitz, H., Michaelis, R. E., and

Vieth, D. L., Standard Reference

Materials: Homogeneity Characterization of NBS Spectrometric

Standards IV: Preparation and

Microprobe Characterization of

W-20% MO Alloy Fabricated by

Powder Metallurgical Methods, NBS

Spec. Publ. 260-16 (January 1969).

COM74- 11062**

Catanzaro, E. J., Champion, C. E., Garner, E. L., Marinenko, G.,

Sappenfield, K. M., and Shields, W.

R. Standard Reference Materials:

Boric Acid; Isotopic and Assay

Standard Reference Materials, NBS

Spec. Publ. 260-17 (February 1970).

Out of Print.

130
Geller, S. B., Mantek, P. A., and

Cleveland, N. G., Standard Reference

Materials: Calibration of NBS

Secondary Standard Magnetic Tape

(Computer Amplitude Reference)

Using the Reference Tape Amplitude

Measurement "Process A", NBS

Spec. Publ. 260-18 (November 1969).

(See NBS Spec. Publ. 260-29.)

Paule, R. C, and Mandel, J., Standard

Reference Materials: Analysis of

Interlaboratory Measurements on the

Vapor Pressure of Gold (Certification

of Standard Reference Material 745).

NBS Spec. Publ. 260-19 (January

1970). PB 190071**

Paule, R. C, and Mandel, J., Standard

Reference Materials: Analysis of

Interlaboratory Measurements on the

Vapor Pressures of Cadmium and

Silver, NBS Spec. Publ. 260-21

(January 1971). COM74-1 1359**

Yakowitz, H., Fiori, C. E., and

Michaelis, R. E., Standard Reference

Materials: Homogeneity Characterization of Fe-3 Si Alloy, NBS

Spec. Publ. 260-22 (February 1971).

COM74-11357**

Napolitano, A., and Hawkins, E. G.,

Standard Reference Materials:

Viscosity of a Standard Borosilicate

Glass, NBS Spec. Publ. 260-23

(December 1970). COM71-00157**

Sappenfield, K. M., Marinenko, G., and

Hague, J. L., Standard Reference

Materials: Comparison of Redox

Standards, NBS Spec. Publ. 260-24

(January 1972). COM72-50058**

Hicho, G. E., Yakowitz, H., Rasberry,

S. D., and Michaelis, R. E., Standard

Reference Materials: A Standard

Reference Material Containing

Nominally Four Percent Austenite,

NBS Spec. Publ. 260-25 (February

1971). COM74-11356**

Martin, J. F., Standard Reference

Materials: National Bureau of

Standards-US Steel Corporation Joint

Program for Determining Oxygen

and Nitrogen in Steel, NBS Spec.

Publ. 260-26 (February 1971). SN003-

00300786-2*

Garner, E. L., Machlan, L. A., and

Shields, W. R., Standard Reference

Materials: Uranium Isotopic Standard

Reference Materials, NBS Spec. Publ.

260-27 (April 1971). COM74-1 1358**

Heinrich, K. F. J., Myklebust, R. L., Rasberry, S. D., and Michaelis, R. E., Standard Reference Materials:

Preparation and Evaluation of SRM's

481 and 482 GoldSilver and GoldCopper Alloys for Microanalysis,

NBS Spec. Publ. 260-28 (August

1971). COM71-50365**

Geller, S. B., Standard Reference

Materials: Calibration of NBS

Secondary Standard Magnetic Tape

(Computer Amplitude Reference)

Using the Reference Tape Amplitude

Measurement "Process A-Model 2,"

NBS Spec. Publ. 260-29 (June 1971).

COM7 1-50282

Gorozhanina, R. S., Freedman, A. Y., and Shaievitch, A. B. (translated by

M. C. Selby), Standard Reference

Materials: Standard Samples Issued in the USSR (A Translation from the

Russian). NBS Spec. Publ. 260-30

(June 1971). COM71-50283**

Hust, J. G., and Sparks, L. L., Standard Reference Materials:

Thermal Conductivity of Electrolytic

Iron SRM 734 from 4 to 300 K, NBS

Spec. Publ. 260-31 (November 1971).

COM7 150563**

Mavrodineanu, R., and Lazar, J. W.,

Standard Reference Materials:

Standard Quartz Cuvettes, for High

Accuracy Spectrophotometry, NBS

Spec. Publ. 260-32 (December 1973).

SN003-003-01213-1*

Wagner, H. L., Standard Reference

Materials: Comparison of Original

and Supplemental SRM 705, Narrow

Molecular Weight Distribution

Polystyrene, NBS Spec. Publ. 260-33

(May 1972). COM72-50526**

Sparks, L. L., and Hust, J. G.,

Standard Reference Materials:

Thermoelectric Voltage, NBS Spec.

Publ. 260-34 (April 1972). COM72-

50371**

Sparks, L. L., and Hust, J. G.,

Standard Reference Materials:

Thermal Conductivity of Austenitic

Stainless Steel, SRM 735 from 5 to 280 K, NBS Spec. Publ. 260-35 (April

1972.) COM72-50368**

Cali, J. P., Mandel, J., Moore, L. J., and Young, D. S., Standard Reference

Materials: A Reference Method for the

Determination of Calcium in Serum,

NBS SRM 915, NBS Spec. Publ. 260-

36 (May 1972). COM72-50527**

Shultz, J. I., Bell, R. K., Rains, T. C,

and Menis, O., Standard Reference

Materials: Methods of Analysis of

NBS Clay Standards, NBS Spec.

Publ. 260-37 (June 1972). COM72-

50692**

Richmond, J. C, and Hsia, J. J., Standard Reference Materials:

Preparation and Calibration of

Standards of Spectral Specular

Reflectance, NBS Spec. Publ. 260-38

(May 1972). COM72-50528**

Clark, A. F., Denson, V. A., Hust, J. G., and Powell, R. L., Standard

Reference Materials: The Eddy

Current Decay Method for

Resistivity Characterization of HighPurity Metals, NBS Spec. Publ. 260-

39 (May 1972). COM72-50529**

McAdie, H. G., Gam, P. D., and

Menis, O., Standard Reference

Materials: Selection of Thermal

Analysis Temperature Standards

Through a Cooperative Study (SRM

758, 759, 760), NBS Spec. Publ. 260-

40 (August 1972). COM72-50776**

Wood, L. A., and Shouse, P. J., Standard Reference Materials: Use of

Standard Light-Sensitive Paper for

Calibrating Carbon Arcs Used in Testing Textiles for Colorfastness to Light, NBS Spec. Publ. 260-41

(August 1972). COM72-50775**

Wagner, H. L., and Verdier, P. H.,

eds., Standard Reference Materials:

The Characterization of Linear

Polyethylene, SRM 1475, NBS Spec.

Publ. 260-42 (September 1972).

COM7250944**

Yakowitz, H., Ruff, A. W., and

Michaelis, R. E., Standard Reference

Materials: Preparation and

Homogeneity Characterization of an

Austenitic Iron-Chromium-Nickel

Alloy, NBS Spec. Publ. 260-43

(November 1972). COM73-50760**

Schooley, J. F., Soulen, R. J., Jr., and

Evans, G. A., Jr., Standard Reference

Materials: Preparation and Use of

Superconductive Fixed Point

Devices, SRM 767, NBS Spec. Publ.

260-44 (December 1972). COM73-

50037**

Greifer, B., Maienthel, E. J., Rains, T. C, and Rasberry, S. D., Standard

Reference Materials: Powdered LeadBased Paint, SRM 1579, NBS Spec.

Publ. 260-45 (March 1973). COM73-

50226**

131
Hust, J. G., and Giarratano, P. J., Standard Reference Materials:

Thermal Conductivity and Electrical

Resistivity Standard Reference

Materials: Austenitic Stainless Steel,

SRM's 735 and 798, from 4 to 1200

K, NBS Spec. Publ. 260-46 (March

1975). SN003-003-01278-5*

Hust, J. G., Standard Reference

Materials: Electrical Resistivity of

Electrolytic Iron, SRM 797, and

Austenitic Stainless Steel, SRM 798,

from 5 to 280 K, NBS Spec. Publ.

26047 (February 1974). COM74-

50176**

Mangum, B. W., and Wise, J. A., Standard Reference Materials:

Description and Use of Precision

Thermometers for the Clinical

Laboratory, SRM 933 and SRM 934,

NBS Spec. Publ. 260-48 (May 1974).

SN003-003-01278-5*

Carpenter, B. S., and Reimer, G. M.,

Standard Reference Materials:

Calibrated Glass Standards for

Fission Track Use, NBS Spec. Publ.

260-49 (November 1974). SN003-003-

01344-7*

Hust, J. G., and Giarratano, P. J., Standard Reference Materials:

Thermal Conductivity and Electrical

Resistivity Standard Reference

Materials: Electrolytic Iron, SRM's

734 and 797 from 4 to 1000 K, NBS

Spec. Publ. 260-50 (June 1975).

SN003-003-0 1425-7*

Mavrodineanu, R., and Baldwin, J. R., Standard Reference Materials: Glass

Filters As a Standard Reference

Material for Spectrophotometry;

Selection; Preparation; Certification;

Use-SRM 930, NBS Spec. Publ. 260-

51 (November 1975). SN003-003-

01481-8*

Hust, J. G., and Giarratano, P. J., Standard Reference Materials:

Thermal Conductivity and Electrical

Resistivity Standard Reference

Materials 730 and 799, from 4 to 3000

K, NBS Spec. Publ. 260-52

(September 1975). SN003-003-01464-

8*

Durst, R. A., Standard Reference

Materials: Standardization of pH

Measurements, NBS Spec. Publ. 260-

53 (December 1975, Revised). SN003-

003-01551-2*

Burke, R. W„ and Mavrodineanu, R., Standard Reference Materials:

Certification and Use of Acidic

Potassium Dichromate Solutions as an Ultraviolet Absorbance Standard,

NBS Spec. Publ. 260-54 (August

1977). SN003-003-0 1828-7*

Ditmars, D. A., Cezairliyan, A., Ishihara, S„ and Douglas, T. B., Standard Reference Materials:

Enthalpy and Heat Capacity;

Molybdenum SRM 781, From 273 to 2800 K, NBS Spec. Publ. 260-55

(September 1977). SN003-003-01836-

8*

Powell, R. L., Sparks, L. L., and Hust,

J. G., Standard Reference Materials:

Standard Thermocouple Material, Pt27: SRM 1967, NBS Spec. Publ. 260-

56 (February 1978). SN0003-0O3-

018864*

Cali, J. P. and Plebanski, T., Guide to United States Reference Materials,

NBS Spec. Publ. 260-57 (February

1978) . SN003-003-0 1883-0*

Barnes, J. D. and Martin, G. M.,

Standard Reference Materials:

Polyester Film for Oxygen Gas

Transmission Measurements. SRM

1470, NBS Spec. Publ. 260-58 (June

1979) . SN003-003-02077-0*

Chang, T. and Kahn, A. H., Standard

Reference Materials: Electron

Paramagnetic Resonance Intensity

Standard: SRM 2601, NBS Spec.

Publ. 260-59 (August 1978). SN003-

003-01975-5*

Velapoldi, R. A., Paule, R. C,

Schaffer, R., Mandel, J., and Moody,

J. R., Standard Reference Materials:

A Reference Method for the

Determination of Sodium in Serum,

NBS Spec. Publ. 260-60 (August

1978). SN003-003-01978-0*

Verdier, P. H., and Wagner, H. L., Standard Reference Materials: The

Characterization of Linear

Polyethylene (SRM 1482, 1483,

1484), NBS Spec. Publ. 260-61

(December 1978). SN003-003-02006-

1*

Soulen, R. J., and Dove, R. B., Standard Reference Materials:

Temperature Reference Standard for

Use Below 0.5 K (SRM 768). NBS

Spec. Publ. 260-62 (April 1979).

SN003-003-02047-8*

Velapoldi, R. A., Paule, R. C,

Schaffer, R., Mandel, J., Machlan, L.

A., and Gramlich, J. W., Standard

Reference Materials: A Reference

Method of the Determination of

Potassium in Serum. NBS Spec. Publ.

260-63 (May 1979). SN003-003-02068*

Velapoldi, R. A., and Mielenz, K. D.,

Standard Reference Materials: A

Fluorescence Standard Reference

Material Quinine Sulfate Dihydrate

(SRM 936), NBS Spec. Publ. 260-64

(January 1980). SN003-003-02148-2*

Marinenko, R. B., Heinrich, K. F. J., and Ruegg, F. C, Standard Reference

Materials: Micro-Homogeneity

Studies of NBS Standard Reference

Materials, NBS Research Materials,

and Other Related Samples. NBS

Spec. Publ. 260-65 (September 1979).

SN003-003-02 114-1*

Venable, W. H., Jr., and Eckerle, K.

L., Standard Reference Materials:

Didymium Glass Filters for

Calibrating the Wavelength Scale of

Spectrophotometers (SRM 2009,

2010, 2013). NBS Spec. Publ. 260-66

(October 1979). SNOO3-003-02 127-0*

132
Velapoldi, R. A., Paule, R. C,

Schaffer, R., Mandel, J., Murphy, T.

J., and Gramlich, J. W., Standard

Reference Materials: A Reference

Method for the Determination of

Chloride in Serum, NBS Spec. Publ.

260-67 (November 1979). SN003-003-

02136-9*

Mavrodineanu, R. and Baldwin, J. R.,

Standard Reference Materials: MetalOn-Quartz Filters as a Standard

Reference Material for Spectrophotometry-SRM 2031, NBS Spec.

Publ. 260-68 (April 1980). SN003-003-

02167-9*

Velapoldi, R. A., Paule, R. C,

Schaffer, R., Mandel, J., Machlan, L.

A,, Garner, E. L., and Rains, T. C,

Standard Reference Materials: A

Reference Method for the

Determination of Lithium in Serum,

NBS Spec. Publ. 260-69 (July 1980).

SN003-003-02214-4*

Marinenko, R. B., Biancaniello, F., Boyer, P. A., Ruff, A. W„ DeRobertis,

L., Standard Reference Materials:

Preparation and Characterization of

an Iron-Chromium-Nickel Alloy for

Microanalysis, NBS Spec. Publ. 260-

70 (May 1981). SN003-003-02328-1*

Seward, R. W., and Mavrodineanu, R., Standard Reference Materials:

Summary of the Clinical Laboratory

Standards Issued by the National

Bureau of Standards, NBS Spec.

Publ. 260-71 (November 1981).

SN003-003-02381-7*

Reeder, D. J., Coxon, B., Enagonio,

D., Christensen, R. G., Schaffer, R.,

Howell, B. F., Paule, R. C, Mandel,

J., Standard Reference Materials:

SRM 900, Antiepilepsy Drug Level

Assay Standard, NBS Spec. Publ.

260-72 (June 1981). SN003-003-02329-

9*

Interrante, C. G., and Hicho, G. E., Standard Reference Materials: A

Standard Reference Material

Containing Nominally Fifteen

Percent Austenite (SRM 486), NBS

Spec. Publ. 260-73 (January 1982).

SN003-003-02386-8*

Marinenko, R. B., Standard

Reference Materials: Preparation and

Characterization of K-411 and K-414

Mineral Glasses for Microanalysis:

SRM 470. NBS Spec. Publ. 260-74

(April 1982). SN003-003-023-95-7*

Weidner, V. R., Hsia, J. J., Standard

Reference Materials: Preparation and

Calibration of First Surface

Aluminum Mirror Specular

Reflectance Standards (SRM 2003a),

NBS Spec. Publ. 260-75 (May 1982).

SN003-003-023-99-0*

Hicho, G. E. and Eaton, E. E., Standard Reference Materials: A

Standard Reference Material

Containing Nominally Five Percent

Austenite (SRM 485a), NBS Spec.

Publ. 260-76 (August 1982).*

Furukawa, G. T., Riddle, J. L., Bigge,

W. G., and Pfieffer, E. R., Standard

Reference Materials: Application of

Some Metal SRM's as Thermometric

Fixed Points, NBS Spec. Publ. 260-77

(August 1982).*

Hicho, G. E. and Eaton, E. E., Standard Reference Materials:

Standard Reference Material

Containing Nominally Thirty Percent

Austenite (SRM 487), NBS Spec.

Publ. 260-78 (September 1982).

SN003-003-024-35-0*

Richmond, J. C, Hsia, J. J., Weidner,

V. R., and Wilmering, D. B., Standard

Reference Materials: Second Surface

Mirror Standards of Specular

Spectral Reflectance (SRM's 2023,

2024, 2025), NBS Spec. Publ. 260-79

(October 1982). SN003-003-024-47-3*

Schaffer, R., Mandel, J., Sun, T., Cohen, A., and Hertz, H. S., Standard

Reference Materials: Evaluation by

an ID/MS Method of the AACC

Reference Method for Serum

Glucose, NBS Spec. Publ. 260-80

(October 1982). SNOO3-OO3-024-43-1*

Burke, R. W., Mavrodineanu, R. (NBS

retired). Standard Reference

Materials: Accuracy in Analytical

Spectrophotometry, NBS Spec. Publ.

260-81 (April 1983). SN003-003-024-

84-8*

Weidner, V. R., Standard Reference

Materials: White Opal Glass Diffuse

Spectral Reflectance Standards for the Visible Spectrum (SRM's 2015

and 2016). NBS Spec. Publ. 260-82

(April 1983). SN-003-003024-89-9*

Bowers, G. N., Jr., Alvarez, R., Cali,

J. P. (NBS retired), Eberhardt, K. R., Reeder, D. J., Schaffer, R., Uriano, G.

A., Standard Reference Materials:

The Measurement of the Catalytic

(Activity) Concentration of Seven

Enzymes in NBS Human Serum

SRM 909. NBS Spec. Publ. 260-83

(June 1983). SN003-003-024-99-6*

Gills, T. E., Seward, R. W. Collins, R.

J., and Webster, W. C, Standard

Reference Materials: Sampling,

Materials Handling, Processing, and

Packaging of NBS Sulfur in Coal

Standard Reference Materials, 2682,

2683, 2684 and 2685. NBS Spec. Publ.

260-84 (In Press).

Swyt, D. A., Standard Reference

Materials: A Look at Techniques for

the Dimensional Calibration of

Standard Microscopic Particles. NBS

Spec. Publ. 260-85 (In Press).

*Send order with remittance to Superintendent of Documents, U.S. Government Printing Office, Washington,

DC 20402. Remittance from foreign

countries should include an additional one- fourth of the purchase price for postage.

Phone for current prices: 202-783-3238. **May be ordered from National

Technical Information Service (NTIS).

Springfield, VA 22151. Phone: 703-487- 4650.

133

Indexes

Category Index of Standards

107 Abrasive Wear

55 Acidimetric

55 Acid Potassium Phthlate

55 Benzoic Acid

55 Boric Acid

57 Agricultural and Food Science

68 Ammonium Dihydrogen Phosphate (Fertilizer)

57 Bovine Liver

57 Brewers Yeast

56 Calcium Carbonate (Clinical)

56 Cholesterol (Clinical)

57 Citrus Leaves

55 Dextrose

56 Human Serum (Clinical)

57 Milk, Non-Fat Powdered

57 Oyster Tissue

68 Phosphate Rock (Fertilizer)

57 Pine Needles

68 Potassium Dihydrogen Phosphate (Fertilizer)

68 Potassium Nitrate (Fertilizer)

57 Rice Flour

55 Sucrose

57 Tomato Leaves

63 Trace Elements in Water

117 Tuna, Albacore

57 Wheat Flour

57 Wine, Stabilized

Air

59 Carbon Dioxide in 60 Carbon Monoxide in 59 Methane in 59 Methane-Propane in 60 Nitrogen Dioxide in 59 Propane in 56 Albumin

56 Bovine Serum (Powder)

56 Bovine Serum (7% Solution)

Alloys

39 Casting

22 High

33 High-Temperature

20 Low

39 Nonferrous

35 Steelmaking

Alloys (Chemical Composition)

(also see individual metals)

Aluminum

39 Chip Form

79 Neutron Density Monitor Wire

45 Solid Form

Cobalt

79 Neutron Density Monitor Wire

Copper

39 Chip Form

54 Microprobe

46 Solid Form

35 Ferro (Steelmaking)

Gold

52 High-purity

54 Microprobe

High Temperature

33 Solid Form

Iron 36 Chip Form

53 Microprobe

38 Solid Form

Lead

42 Chip Form

49 Solid Form

Magnesium

42 Chip Form

Molybdenum

54 Microprobe

Nickel

42 Chip Form

43 Oxides

49 Solid Form

Platinum

52 Doped, wire

52 High-purity, wire

Preparation and packaging of the materials

that compose an SRM is a varied task. John

Savoy carefully funnels material into glass containers as part of the packaging process.
ocicnium SO /AIIdlVAcU A n'll \/ von f.acDC vldata (I- ' I - nvirnnmontoll M V II Oil 1 1 1 L 1 1 1 d 1 ) 44 Granular Form At DCI1Z.CI1C nciiiicaiioii i udc

Silver SO DCll^CIlC in iNiirogcii

54 1V1 1L I Up! UUC 59 I'arhon v_. ci 1 Uvjll T^ifwi/Hf i-J\\JK\\A\l1 in111 /All Air

Solder J7,UU SO 6fl iV/ularhnn UvJ 1 1 riiOYi/if* L/luAlUC in111 Nilrnopn 1 > 1 1 1 W£^CI 1 42 v^mp rui III 60 (V_- iirhrin dl UWll MnnnviHp IVIUIIUAILIC inIII /All Air

49 SoliH . M ' 1 IU 1rnrm 'Mill 59,60 l""a *_-aIrhnn UUIl Mnnny 1 VI UIIUAIUC l H p in111 ^i1 i ILJt rnopn Ugtll

50 o^ 1 1 p» r IJC J LCI 59 \/i IVXCllldllC 1 n a n f inHi Airl 1 1 30 oldliUcSS 59 ivicLiiaiic-r I opaiic 111 /All 35 Stf1 *^ 1 m*} L

- O ICCI 1 n fr

1 I Idr 111 L. 59 60 Mitrir* .Nil! IL OyV-/AIUC inp in111 MitrocTRn IXlllUtiCIl Tin (SO M1

11 1

1 rf1 UtCI \ fTf^n1 Tii i~Jl\JoA1L1C viri*^ in111 rAAir1

1

44 i^-flip rui in U 1 ^.1 iff/"a iTAn Piir\v in a ot* mooti n 1 hKa iNiirogcn l/ioaiuc i crrricaiioii i uoc

Titan X 1 1 . ! 1 l iMi i1 m1 1

1 60 Oxvupn v_y a y gen inin Witrotrpn . n 1 1 j>

i ._ l 1

1

44 Chip Form 59 Propane in Air

50 Solid M N IU Form I VJI 111 60 xPrnnanp n m iiii n. inin Nitroppn 1 1 in Utt.il 51 Gas in 60 Propane in Nitrogen and Oxygen

Ti i n pstpn 59 Sulfur O U 1 1 ul DioxiHp L/IUAIUV. inHI Witrnppn lllll UgWll

54 Microprobe 61 Sulfur Dioxide Permeation Tube

Zinc 59 Tetrachloroethylene in Nitrogen

45 Chip Form Ul /Vlldiy A nol\77on ALU T lsiiiific onrl ^nliHc l_>l(|UlUa dllU oUIlUd

52 High-purity / 1—< r\ ^ / 1 r* /""a r~i rr\ ii"> toll

^ t-nvironmenidi ^ 50 Solid Form oz Pctncirin^ X£*H i m/^n t

I - l UdllllC OCU1111C11L Zirconium naiUvai I—1 q 1 t~\r* c\ rnntic Uvjiib (in mpt n y ti ( > 1 \ tor

V*'* inciiidinjiy iui 45 Chip Form W/^itf^r vv dici /Aiidiyois A tiiil vciq 51 Solid Form 62 T1 pjiH LtlLJ in111 Rpfprpnpp 1\ V. 1 V- 1 V- 1 1 V- *— FhpI I LI V— 1 Alumina 62 \4prr*i iviti t-Liiy l rv inin W/a »" aiti tpr

93 Meltinp 1*1^.1 Ull t Point A Willi 64 Pptrnlpnm l L 1 M. ) | \. L ! 1 ! 1 ("'rnHp V 1 UUC Oil V-/ 1

1

89 Pol vcrvstalline f Flasticitv^ 65 J.PolvphlortnatpH Ul y^'lllC'l tllul^U Rinhpnvls 1—» I i J i I k_ i I \ i > inill Oil V-/ ii 71 Reduction Grade 64 Polynuclear Aromatic Hydrocarbon

Aluminum Opnprator Cnlumns

70ly Al-Co Alloy (neutron density monitor wire) 64 Poxa/HptpH 1 V > WUL1 LU T1 .LpadilU Rasp 1 JdM Paint X Clll 1

1

^0 Al-bi Alloy 64 Prifiritv r l iui ii y Pollutant i uiiuidiii Polvnnplpar xvjiyiiuwiGcii /ai ArnmatiP uiiiciiiv. "Benchmark" T-IvHrnparhon's 1 ly Ul Uv,ai UU113 Apptomtnlp^ V*** ** lUiiiLi 11V- /

1 no Conductivity 62 R1\1i\/f*r VCI SpHimpnt OCUllHClll OTyz rreezing Point Shal^ Oil

Magnetic Susceptibility 65 Snlfnr OlillLll mUl f^oal V- Ual

0 / IVxclallO-OrgdlllC V^UIIipOUIlU 61 Sulfur in Distillate Fuel Oil

1 U 1 IVdUIUaL 11 V 1 1 y 61 Sulfur in Residual Fuel Oil

1DQ RIYCMU (^ciHii'jl Ual RI\CJ>l3 *^cicti\/it\/ 1 1 V 1 R a 1 1 o

1 y l\a l IU 62 Trace Elements in Coal

92 Secondary Reference Point OZ Trace Elements in Coal Fly Ash

110 T 11*,-., Di , i j i t Ultra runty VJZ> Tr

a

pp Plpmptit^ in T^i ipI f~)i 1 x iaLv. J . i 1 1 1 1 1 1 1 > in x ur,i v_y 1

1

39 Wrought ¥ T 1 \ J LI t-y 111 iAllov V 1 1 v « y 62 Trace Elements in Water

Americium 61 Trace Mercury in Coal

103 Radioactivity 64 Urban Dust

68 Ammonium Dihydrogen Phosphate 62 Urban Particulate

68 Fertilizer 62 Vanadium in Crude Oil

61 Vanadium and Nickel in Residual Fuel Oil

57 Angiotensin I (Human)

Antimony

103 Radioactivity

Arsenic

55 Trioxide (reductometric)

Asbestos

67 Chrysotile

Assay Standards

(See Specific Constituent)

Austenite

106 in Ferrite

136
Barium

67 Metallo-organic Compound

101 Radioactivity

73 Basalt Rock

Basimetric

55 Tris(hydroxymethyl)aminomethane

Bauxite

70 Arkansas

71 Dominican

71 Jamaican

70 Surinam

Benzene

59 in Nitrogen

61 Permeation Device

Benzoic Acid

55 Acidimetric

93 Calorimetric

55 Microchemical

Beryllium

66 on Filter Media

56 Bilirubin (Clinical)

57 Biological

57 Bovine Liver

57 Brewers Yeast

57 Citrus Leaves

57 Milk, Non-Fat Powdered

57 Oyster Tissue

57 Pine Needles

57 Rice Flour

57 Tomato Leaves

1 17 Tuna, Albacore

57 Wheat Flour

38 Blast Furnace Irons Boron

55,80 Boric Acid

80 Boric Acid (Enriched)

74 Glass, High

74 Glass, Low

57 Botanical

(see Biological)

Bovine

57 Liver (Biological)

56 Serum Albumin (Powder)

56 Serum Albumin (7% solution)

Brass

46 Aluminum

46,53 Cartridge

46 Free Cutting

46 Naval

46 Red

39 Sheet

Bronze

46 Commercial

39 Phosphor

39 Silicon

1 1 1 Butyl

1 1 1 Rubber

Cadmium

67 Metallo-organic Compound

94 Vapor Pressure Calcium

56 Carbonate

67 Metallo-organic Compound

35 Molybdate (Steelmaking)

93 Calorimetric

93 Combustion

94 Enthalpy and Heat Capacity

93 Heat Source

93 Solution

Cane Sugar

55,100 Sucrose

74 Carbides

74 Tungsten

Carbon

59 Dioxide in Air

59 Dioxide in Nitrogen

60 Monoxide in Air

59 Monoxide in Nitrogen

101 Radioactivity

111 Rubber Compounding

36 Carbon Steels

36 Cast Iron, Chip Form

36 Ductile

36 Electrolytic

36 Gray

36 High Alloy White

36 Nodular

36 White

38 Cast Iron, Solid Form

38 White

106 Catalyst Package for Lubricant

Oxidation

112 Centerline Drawings for Optical

Character Recognition

75 Cements

75 Portland, Chemical Composition

113 Turbidimetric and Fineness

Ceramic Materials

74 Carbides

74 Glasses

72 Minerals

73 Refractories

137
101 Cesium

101,103 Radioactivity

55 Chemical

55 Primary

55 Acid Potassium Phthalate

55 Arsenic Trioxide

55 Benzoic Acid

55 Boric Acid

55 Dextrose

55 Potassium Chloride

55 Potassium Dichromate

55 Sodium Oxalate

55 Strontium Cabonate

55 Sucrose

55 Tris(hydroxymethyl)aminomethane

55 Uranium Oxide

44 Intermediate Purity

44 Selenium

Chlorine

80 Isotopic Reference

101 Radioactivity

Chromium

85 Coating Thickness

87 on Brass

85 on Steel

35 Ferro (Steelmaking)

67 Metallo-organic Compound

80 Nitrate (Isotopic)

105 Radioactivity

73 Refractories

72 Clays

72 Flint

72 Plastic

56 Clinical Laboratory

57 Angiotensin I (Human)

57 Anticonvulsant Drug Level Assay

56 Antiepilepsy Drug Level Assay

56 Bilirubin

56 Bovine Serum Albumin (Powder)

56 Bovine Serum Albumin (7% Solution)

56 Calcium Carbonate

56 Cholesterol

57 Clinical Laboratory Thermometer

56 Creatinine

57 Crystalline Potassium Dichromate

56 Cortisol

57 Gallium Melting Point

56 Glass Filters for Spectrophotometry

56 D-Glucose

56 Human Serum

57

56

56

56

56

56

57

56

57

57

57

56

56

57

57

57

57

56

56

56

56

56

6165

62

62

85

85

87

87

87

86

79

67

101,105

114

Iron Metal

Lead Nitrate

Liquid Filters for Spectrophotometry

Lithium Carbonate

Magnesium Gluconate

D-Mannitol

4-Nitrophenol

Potassium Chloride

Quartz Cuvette for Spectrophotometry

Quinine Sulfate Dihydrate

Rubidium Melting Point

Sodium Chloride

Sodium Pyruvate

Stabilized Wine

Succinonitrile Freezing Point

Thermometer

Tripalmitin

Tris(hydroxymethyl)aminomethane

Tris(hydroxymethyl)aminomethane HC1

Urea

Uric Acid

VMA

Coal

Mercury in Sulfur in Trace Elements in Trace Elements in Fly Ash

Coating Thickness

Copper and Chromium on Steel

Gold on Glass Sealing Alloy

Gold on Nickel

Nickel and Chromium on Brass

Nickel and Steel

Cobalt

Alloys

Metallo-organic Compounds

Radioactivity

Color

Copper

39,46 Alloys

41 "Benchmark", chip

48 "Benchmark", solid

46 Beryllium copper alloys

Brass

46 Aluminum

46,53 Cartridge

46 Free Cutting

46 Naval

46 Red

39 Sheet

Bronze

46 Commercial

39 Phosphor

39 Silicon

85 Coating Thickness

85 on Steel

39 Cupro-nickel, chip

46 Cupro-nickel, solid

92 Freezing Point

46 Gilding Metal

94 Heat Capacity

80 Metal (Isotopic)

67 Metallo-organic Compound

138
89 Microhardness

54 Microprobe (gold-copper wire)

69 Mill Heads

69 Mill Tails

39 Nickel Silver Alloy

92 Secondary Reference Point

95 Thermal Expansion

107 Corrosion, Pitting or Crevice

90 Density

90 Borosilicate Glass

90 Lead-Silica Glass

79 Neutron Density Wire

1 1 5 Photographic

90 Silicon

115 Smoke Density, Flaming

115 Smoke Density, Non-flaming

90 Soda-Lime Glass

90 2,2,4-trimethylpentane

115 X-ray

55 Dextrose (D-GIucose)

56 Clinical

100 Optical Rotation

55 Primary

55 Reductometric Value

118 Differential Thermal Analysis

118 Glass Transition

118 Magnetic Transition

118 Melting Point

118 Transition Point

Drug Level Assay

57 Anticonvulsant

56 Antiepilepsy

38 Ductile Irons Dust

64 Urban/Organic

1 1 1 Engineering Type

59 Environmental

59 Analyzed Gases

61 Analyzed Liquids and Solids

64 Organic Constituents

61 Permeation Tubes

65 Polychlorinated Biphenyls in Oil

105 Radioactivity

65 Sulfur in Coal

89 Elasticity

108 Electrical Resistivity and Conductivity

109 Conductivity

109 Glass

108 Metals

109 Residual Resistivity Ratio

108 Silicon

Europium

101,103 Radioactivity

72 Feldspars

72 Soda

72 Potash

Ferrite

106 Austenite in 106 Iron Carbide in

35 Ferro-(Steelmaking Alloys)

35 Chromium

35 Niobium

35 Phosphorus

35 Silicon

68 Fertilizer

68 Ammonium Dihydrogen Phosphate

68 Phosphate Rock

68 Potassium Dihydrogen Phosphate

68 Potassium Nitrate

96 Filters 96 Glass for Spectrophotometry

96 Liquid for Spectrophotometry

66 Filter Media

66 Beryllium on

66 Lead on

66 Metals on

66 Quartz on

66 Sulfate and Nitrate on

80 Fission Track Glasses

115 Flammability

115 Smoke Density, Flaming

115 Smoke Density, Nonflaming

115 Surface (hardboard sheet)

66 Fluorine in Urine

69 Fluorspar

69 Assay

69 Geological

62 Fly Ash

62 Trace Elements in

57 Food Science

(See Agriculture and Food Science)

66 Freeze Dried Urine

66 Fluorine

66 Mercury

66 Multi-element

yz lKrpp7ino I CC£illIg Pnint IT Ullll y£ Defining Fixed Points

Cn7Z Tin

cn Zinc

yz ocl-vjiilicii y iv c i ci ci it^c r *jiii i j yz /VA 1

1 nmin UlIIlllUlll 1 1 m

yz IJIJC1 92 Lead

92 Mercury

57 Succinonitrile

92 Tin

92 Zinc

139
61

6162

61

108

108

62

62,108

102

57,93

105

59

6159

59

59

60

59

59

59

59

60

6160

59

60

60

59

6159

51

51

108

108

69,

70,72

73

72

69

72

Fuel Oil

Sulfur in Residual

Sulfur in Distillate

Trace Elements in Vanadium and Nickel in Residual

Fuels

n-Heptane

Isooctane

Lead in Reference

Reference

Gadolinium

Radioactivity

Gallium

Melting Point

Radioactivity

Gases, Analyzed

Benzene Permeation Tube

Benzene in Nitrogen

Carbon Dioxide in Air

Carbon Dioxide in Nitrogen

Carbon Monoxide in Air

Carbon Monoxide in Nitrogen

Methane in Air

Methane-Propane in Air

Nitric Oxide in Nitrogen

Nitrogen Dioxide in Air

Nitrogen Dioxide Permeation Tube

Oxygen in Nitrogen

Propane in Air

Propane in Nitrogen

Propane in Nitrogen and Oxygen

Sulfur Dioxide in Nitrogen

Sulfur Dioxide Permeation Tube

Tetrachloroethylene in Nitrogen

Gases in Metals

Certified for Hydrogen, Oxygen,

and Nitrogen

Gasoline

Lead in Fuel Ratings

Geological

(See Ores, Rocks, Minerals,

Refractories)

Basalt Rock

Clay

Fluorspar

Obsidian Rock

Glass

90 Density

98 Directional-Hemispherical

Reflectance

109 Electrical Resistivity

53 Fibers for Microanalysis

96 Filters for Spectrophotometry

80 Fission Track

107 Fluorescence Source

99 Refractive Index

72 Sand

113 Spheres for Sieve Calibration

(sizing standard)

89 Stress Optical Coefficient

94 Thermal Conductivity

95 Thermal Expansion

76 Trace Elements in 74 Glasses (Chemical Composition)

74 High-Boron

74 Lead-Barium

74 Low-Boron

74 Opal

74 Soda-Lime

74 Container

74 Flat

74 Float

74 Sheet

87 Glasses (Physical Properties)

87 Chemical Resistance (Durability)

88 Electrical Properties

89 Glass Liquidus Temperature

89 Relative Stress Optical Coefficient

88 Viscosity

88 Viscosity Fixpoints

Glucose (Dextrose)

56 Clinical

55 Primary Chemical

Gold

87 Coating Thickness

87 on Glass Sealing Alloy

87 on Nickel

52 High-purity

54 Microprobe

105 Radioactivity

95 Thermocouple Material

94 Vapor Pressure

89 Hardness, Micro

92 Heat

93 Calorimetric

92 Freezing Points

93 Melting Points

92 Superconductive Fixed Points

94 Thermal Conductivity

95 Thermal Expansion

95 Thermocouple Materials

94 Vapor Pressure

93 Heat Source

93 Zirconium-barium-chromate

22 High Alloy Steels

22 Chip Form

140
52 High-Purity Metals

52 Electrical Residual Resistivity Ratio

52 Gold, wire and rod

52 Platinum, wire

52 Zinc

33 High Temperature Alloys

Hydrogen

51 in Titanium

101 Radioactivity

Indium

105,106 Radioactivity

66 Industrial Hygiene

67 Asbestos

66 Freeze Dried Urine

66 Fluorine

66 Mercury

66 Multi-element

66 Materials on Filter Media

66 Beryllium

66 Lead

66 Metals

66 Quartz

66 Sulfate and Nitrate

66 Respirable Quartz

24 Ingot Iron

83 Ion-Activity

84 Ion-selective Electrodes

84 pD

83 pH

Iron 36 Alloys

36 Chip Form

108 Electrical Resistivity

24 Ingot

57 Metal (Clinical)

67 Metallo-organic Compound

70 Ores

104,105 Radioactivity

38 Solid Form

94 Thermal Conductivity

Iodine

101,105 Radioactivity

80 Isotopic (Stable)

80 Boric Acid, enriched

80 Boric Acid, natural

80 Chromium Nitrate

80 Copper

80 Lead, equal atom (206/208)

80 Lead, Natural

80 Lead, radiogenic, 92% Lead-206

80 Lead-206, spike

80 Magnesium

80 Potassium Chloride

80 Rhenium

80 Silicon

80 Silver Nitrate

80 Sodium Bromide

80 Sodium Chloride

80 Strontium Carbonate

Krypton

103 Radioactivity

Lead

42 Alloys

74 Barium Glass

26,42 Bearing Metal

66 on Filter Media

92 Freezing Point

108 Gasoline

80 Metal (Isotopic)

80 Equal Atom

80 Natural

80 Radiogenic

67 Metallo-organic Compound

56 Nitrate (Clinical) 61 Powdered Lead Base Paint

105 Radioactivity

92 Secondary Reference Point

42,49 Solder

80 Spike (Assay and Isotopic)

62 in Reference Fuel

1 14 Light Sensitive

114 Faded Paper Strips

114 Light Sensitive Papers

114 Light Sensitive Plastic Chips

72 Limestone

72 Argillaceous

72 Dolomitic

116 Linerboard

1 16 for Tape Adhesion Testing

85 Linewidth Measurement

61 Liquids, Analyzed

56 Carbonate (Clinical)

62 Lead in Reference Fuel

62 Mercury in Water

61 Sulfur in Residual Fuel Oil

61 Sulfur in Distillate Fuel Oil

62 Trace Elements in Fuel Oil

62 Trace Elements in Water

62 Vanadium in Crude Oil

61 Vanadium and Nickel in Residual Fuel Oil

Lithium

69 Ores

Liver

105 Human, Radioactivity

57 Bovine, Biological

Low Alloy Steels

20 Chip Form

26 Solid Form

141
106 Lubricant Oxidation

Catalyst Package for

105 Lung

105 Human, Radioactivity

Magnesium

42 Alloy

56 Gluconate (Clinical)

80 Metal (Isotopic)

67 Metallo-organic Compound

95 Magnetic

95 Moment

96 Paramagnetic Resonance

95 Susceptibility

112 Tape (Computer Amplitude Reference)

84 Magnification

Manganese

95 Fluoride, Magnetic Susceptibility

67 Metallo-organic Compound

101,103 Radioactivity

32,51 Maraging Steel

66 Materials on Filter Media

66 Beryllium

66 Lead

66 Metals

66 Quartz

66 Sulfate and Nitrate

84 Mechanical and Metrology

85 Linewidth Measurement

115 Microscopy Resolution Test Chart

13 Particle Size

84 SEM Magnification

84 SEM Performance

Mercury

92 Freezing Point

05 Radioactivity

92 Secondary Reference Point

61 Trace Element in Coal

66 Trace Element in Urine

62 Trace Element in Water

62 in Water

93 Melting Points

93 Alumina

93 Gallium

93 Rubidium

67 Metallo-Organu

67 Aluminum

67 Barium

67 Cadmium

67 Calcium

67 Chromium

67 Cobalt

67 Copper

67 Iron 67 Lead

67 Magnesium

67 Manganese

67 Nickel

67 Phosphorus

67 Potassium

67 Silicon

67 Silver

67 Sodium

67 Strontium

67 Tin

67 Vanadium

67 Zinc

106 Metallurgical

106 Austinite in 1 106 Iron Carbide

Metals

Alloys (See Index Entry)

Elements (See Index Entry)

92 Freezing Points

51 Gas in 52 High-purity

93 Melting Points

53 Microprobe

108 Resistivity and Conductivity

94 Thermal Conductivity

94 Vapor Pressure

68 Wear Metals in Oil

Metals in Oil

68 Wear

66 Metals on Filter Media

66 Beryllium

66 Cadmium

66 Lead

66 Manganese

66 Zinc

Methane

59 in Air

Methane-Propane

59 in Air

53 Microanalytical

53 Cartridge Brass

53 Fe-Cr-Ni Alloy

53 Glasses for Microchemical Analysis

54 Gold-copper

54 Gold-silver

54 Iron-3.22% Silicon

53 Mineral Glasses for Microanalysis

54 Tungsten-20% Molybdenum

147
55 Microchemical

55 Acetanilide

55 Anisic Acid

55 Benzoic Acid

56 O-Bromobenzoic Acid

56 m-Chlorobenzoic Acid

55 Cystine

56 p-Fluorobenzoic Acid

55 Nicotinic Acid

56 Urea

115 Microcopy Resolution Test Charts

89 Microhardness

89 Bright Copper

89 Bright Nickel

Microprobe

53 Cartridge Brass

53 Fe-Cr-Ni Alloy

53 Glasses for Microchemical Analysis

54 Gold-copper

54 Gold-silver

54 Iron-3.22% Silicon

53 Mineral Glasses for Microanalysis

54 Tungsgen-20% Molybdenum

57 Milk, Non-Fat Powdered

72 Minerals

(See Rocks, and X-ray Diffraction)

72 Clays

72 Flint

72 Plastic

72 Feldspar

72 Potash

72 Soda

72 Glass Sand

72 Limestone

72 Argillaceous

72 Dolomitic

69,70 Ores

70 Bauxite

69 Copper

69 Fluorspar

70 Iron

69 Lithium

71 Manganese

69 Molybdenum

71 Phosphate Rock

71 Rutile

71 Tungsten

71 Zinc

98 Mirrors

98 First Surface

98 Aluminum on Glass

98 Gold on Glass

98 Second Surface

98 Aluminum on Fused Quartz

90 Molecular Weight

90 Polyethylene

90 Polystyrene

Molybdenum

49 Alloy

69 Concentrate (ore)

94 Heat Capacity

54 Microprobe

105 Radioactivity

1 06 Mossbauer

79 Neutron Density Monitor Wire

79 Cobalt in aluminum

Nickel

42,49 Alloys

42 Chip Form

49 Solid Form

Coating Thickness

87 on Brass 87 on Gold

86 on Steel

95 Magnetic Moment

67 Metallo-organic Compound

89 Microhardness

43 Oxides

101 Radioactivity

Niobium

103 Radioactivity

Nitric Oxide

59 in Nitrogen

Nitrogen

60 Dioxide in Air

61 Dioxide Permeation Tube

Nitrogen in 51 Electrolytic Iron

51 Ingot Iron

51 Steel

51 Zirconium

109 Nondestructive Evaluation

109 Penetrant Test Block

39 Nonferrous Alloys, Chip Form

39 Aluminum-base

39 Copper-base

41 Copper "Benchmark"

42 Lead- base

42 Magnesium-base

42 Nickel-base

43 Nickel Oxide

44 Selenium

43 Trace Elements in Nickel-base Superalloy

44 Tin-base

44 Titanium-base

45 Zinc-base

45 Zirconium-base

143
45 Nonferrous Alloys, Solid Form

45 Aluminum "Benchmark"

46 Copper-base

AO45 ^Uppcl DcllLIlIIlarK 4Q T purl-husp

49 Nipkpl -ha<ip

50 Titanium -base

50 Zinc-base

51 Zirconium-base

81o 1 Nuclear Containers

77 Nuclear Materials

OA80 Fission 1 rack Glass

-7-7

/ / Plutonium Assay

77 r luiuinuni isuiupic

79 Radiation Dosimetry

79 Neutron Density Monitor Wire

78 Uranium Assay

78 Uranium Isotopic

57 Nutrition

(See Agriculture and Food Science)

72 Obsidian Rock

Oil

106 Lubricant Oxidation

64 Petroleum Crude

64 Shale

61 Sulfur in Distillate Fuel

61 Sulfur in Residual Fuel

62 Trace Elements in 62 Vanadium in Crude

61 Vanadium and Nickel in Residual Fuel

68 Wear Metals in

85 Optical Microscope Linewidth

Measurement

96 Optical 84

98 Directional-Hemispherical Reflectance 84

100 Optical Rotation 84

97 Reflectance 84

99 Refractive Index 84

96 Spectrophotometric 83

98 Specular Spectral Reflectance 83

69,70 Ores « 83

71 Alumina 83

70 Bauxite 83

69 Copper 83

69 Fluorspar 83

70 Iron 83

69 Lithium 83

71 Manganese 83

69 Molybdenum 83

71 Phosphate Rock

71 Rutile 83

71 Tungsten 68

71 Zinc 68

102 Oxalic Acid

102 Radioactivity

55 Oxidimetric

55 Potassium Dichromate

Oxides

70 Iron 59 Nitrogen

72 Titanium

78 Uranium

1 1 1 Zinc

Oxygen

51 Ingot Iron

51 in Nitrogen

51 Steel

51 Titanium

51 Zirconium

Palladium

95 Magnetic Susceptibility

61 Paint

61 Lead-base

114 Paper

114 Faded Strips

1 14 Light Sensitive

113 Particle Size

113 Glass Spheres

113 Polystyrene Spheres

Particulate

62 Urban

61 Permeation Tubes

61 Benzene

61 Nitrogen Dioxide

61 Sulfur Dioxide

pD

Disodium Hydrogen Phosphate

Potassium Dihydrogen Phosphate

Sodium Bicarbonate

Sodium Carbonate

pH

Disodium Hydrogen Phosphate

Potassium Dihydrogen Phosphate

Potassium Hydrogen Phthalate

Potassium Hydrogen Tartrate Potassium Tetroxalate

Sodium Bicarbonate

Sodium Carbonate

Sodium Tetraborate Decahydrate (Borax)

Tris(hydroxymethyl)aminomethane

Tris(hydroxymethyl)aminomethane HC1

Phosphate

(See pD and pH Standards)

Ammonium Dihydrogen

Potassium Dihydrogen

71 Rock

Phosphorus

35 Ferro (Steelmaking alloy)

67 Metallo-organic Compound

105 Radioactivity

115 Photographic

115 Microcopy Resolution Test Chart

115 Step Tablets

144
107 Pitting or Crevice Corrosion

Plastic

90 (See Polymer)

114 Light Sensitive Chips

108 Polyester Film for Oxygen Transmission

19 Plain Carbon Steels

Platinum

52 Doped, wire

52 High-purity, wire

95 Magnetic Susceptibility

95 Thermocouple Material

Plutonium

77 Assay

77 Metal

77 Standard Matrix

77 Isotopic

77 Spike

77 Sulfate Tetrahydrate

101,102 Radioactivity

55 Polarimetric

55 Dextrose

55 Sucrose

Pollution

59 (See Environmental)

108 Polyester Plastic Film

Polyethylene

94 Calorimetric

90 Polymer

Polymer

90 Gas Transmission

90 Molecular Weight

90 Polyethylene

90 Polystyrene

Polystyrene

94 Calorimetric

90 Polymer

75 Portland Cement

75 Composition

113 Turbidimetric and Fineness

Potassium

55 Acid Phthalate (Acidimetric)

Chloride

55 Assay Isotopic

56 Clinical

93 Solution Calorimetry

Dichromate

55 Clinical

55 Oxidimetric

96 Spectrophotometric

68 Dihydrogen Phosphate (Fertilizer)

76 Feldspar, Trace Elements in 97 Iodide (Spectrophotometric)

83 Ion Activity

84 Ion Selective Electrodes

84 PD

83 pH

68 Nitrate (Fertilizer)

67 Metallo-organic Compound

107 Powder Diffraction

107 Alpha-alumina

107 Cerium Oxide

1 m Chromium Oxide

1U / Mica

1U / Rutile

tu/ Silicon

1 A"7 Zinc Oxide

55 Primary Chemicals

55 Acid Potassium Phthalate

55 Arsenic Trioxide

55 Benzoic Acid

55 Boric Acid

55 Dextrose

55 Plutonium Metal

55 Potassium Chloride

55 Potassium Dichromate

Sodium Oxalate

Strontium Carbonate

J J Sucrose

Tris(hydroxymethyl)aminomethane

55 Uranium Metal

55 Uranium Oxide

Propane

59 in Air

60 inIII lVltrOf7pn 1 1 1L1 V 'LL 1

1

60 in Nitrogen and Oxygen

DO /\ipiid-ior ooiuuon v^aionmeiry

96 Cuvette for Spectrophotometry

66 on Filter Media

97 Metal-on (Spectrophotometry)

66 Respirable

yO ouiiaie L/inyaraie vspecironuorometnc^

100 Radioactivity

101 Alpha-particle, Beta-particle, Gamma-ray,

and Electron-capture Solutions

102

All- ,

" 1 x-» , f-> Alpha-particle Point Source

105 Environmental

103 Gamma-ray and X-ray Point Source

104 Gamma-ray Solution

103 Gaseous

104 Low-energy Photon

tuz Radiocarbon Dating and Ground Water Studies

1 fY) 1UZ v^oniemporary oianoaro ior maroon- i^f oiuaies

1UZ Low-level Tritiated-water

105 Radiopharmaceutical

104 Radium-226 Solution

106 Special Packaging

79 Radiation Dosimetry

79 Neutron Density Monitor Wire

79 Vanadium in Crude Oil

145
IT

104 Radium

Radioactivity

55 Reductometric

55 Arsenic Trioxide

55 Dextrose

55 Sodium Oxalate

108 Reference Fuel

108 n-Heptane

108 Isooctane

112 Reference Magnetic Tapes

97 Reflectance

98 Directional-Hemispherical

99 Refractive Index

98 Specular Spectral

Reflection Step Tablet

98 Refractive Index

98 Glass

98 Silicone Liquids

98 2,2,4-Trimethylpentane

98 Toluene

72 Refractory Materials

(See Rocks, Minerals and Refractories)

72 Burnt

73 Chrome

73 Silica

116 Research Materials

117 Albacore Tuna

116 Al uminum (Ultra Purity)

1 16 Copper Heat Capacity

117 Glass for Microanalysis

117 River Sediment

108 Resistivity

108 Electrical

108 Silicon

80 Rhenium

80 Isotopic and Assay

91 Rheology

72 Rocks, Minerals, and Refractories

73 Basalt

73 Burnt Refractory

73 Chrome Refractory

72 Clay

72 Feldspar

72 Glass Sand

72 Limestone

72 Obsidian Rock

71 Phosphate Rock

73 Silica Refractory

73 Titanium Dioxide

Rubber

Butyl

Butyl (Low Viscosity)

Styrene-butadiene 1500

Rubber Compounding Materials

Benzothiazyldisulfide

Channel Black

Gas Furnace Black

Mercaptobenzothiazole

N-tertiary-Butylbenzothiazolesulfidenamide

Oil Furnace Black

Stearic Acid

Sulfur

Zinc Oxide

Rubidium

80 Isotopic

93 Melting Point

Ruby

96 Paramagnetic Resonance

71 Rutile Ore

Sapphire

94 Enthalpy and Heat Capacity

84 Scanning Electron Microscope

84 Magnification

84 Performance

55 Secondary Standard Chemicals

(See Primary Standard Chemicals)

Sediment

62 Estaurine

62 River (Environmental)

105,117 River (Radioactivity)

Selenium

44 Alloy

44 Metal

105 Radioactivity

146

H
95

108

35

80

67

98

107

98

98

54

80

67

95

94

113

113

113

113

113

115

94

74

74

74

74

80

56

80

63

64

64

63

55

56

62,117

105

105

42,49

42,49

42

49

Silica

Thermal Expansion

Silicon

Electrical Resistivity

Ferro (Steelmaking Alloy)

Isotopic and Assay

Metallo-organic Compound

Refractive Index

X-ray Diffraction

Silicone Liquid

Refractive Index

Silver

Alloys

Nitrate (Isotopic)

Metallo-organic Compound

Thermocouple Material

Vapor Pressure

Sizing

Particle Size

Calibrated Glass Spheres

Polystyrene Spheres

Turbidimetric and Fineness (Cement)

Smoke Density Chamber

Soda-Lime Glass

Container

Flat

Float

Sheet

Sodium

Bromide (Isotopic)

Chloride

Clinical

Isotopic

Ion-activity

Ion-selective Electrodes

pD

PH

Oxalate (Reductometric Value)

Pyruvate

Soil

(See Sediment)

Composition

Peruvian, Radioactivity

Rocky Flats, Radioactivity

Solder

Alloy

Chip Form

Solid Form

61 Solids, Analyzed

62 Estuarine Sediment

61 Powdered Lead Base Paint

62 Trace Elements in Coal

62 Trace Elements in Coal Fly Ash

61 Trace Mercury in Coal

62 River Sediment

62 Urban Particulate

118 Special Reference Materials

Calibration of Surface Area of

119 Powders by BET

119 Calibration of Thermometry

(Melting Points)

118 Differential Thermal Analysis

32 Specialty Steels

96 Spectrofluorometric Standards

96 Quinine Sulfate Dihydrate

96 Spectrophotometric Standards

96 Didymium-oxide Glass Filters

96 Glass Filters

96 Liquid Filters

97 Metal on Quartz Filters

96 Potassium Dichromate

97 Potassium Iodide (Stray Light)

96 Quartz Cuvette

98 Specular Spectral Reflectance

98 First Surface Mirror

98 Second Surface Mirror

Stainless Steel

22 Chip Form

108 Electrical Resistivity

30 Solid Form

Steel

94 Thermal Conductivity

35 Steelmaking Alloys

35 Calcium Molybdate

35 Ferrochromium

35 Ferromanganese

35 Ferroniobium

35 Ferrophosphorus

35 Ferrosilicon

35 Silicon, Refined

147
38 Steels, Cast 92

19 Steels, Chip Form

22 High Alloy 119

20 Low Alloy 119

19 Plain Carbon 119

22 Stainless 119

23 Tool 115

51 Steels, Gas In 116

23 Steels, Granular Form 116

24 Steels, Solid Form 112

38 Cast 112

33 High-temperature 112

24 Ingot Iron 112

26 Ingot Iron, Special 112

24 Low Alloy

26 Low Alloy, Special jqj

32 Maraging Oxygen 92

32 Specialty

30 Stainless 93

34 Tool llg

115 Step Tablets 92

115 Photographic 93

115 Reflection 93

115 X-ray 92

Strontium

80 Carbonate (Assay and Isotopic)

67 Metallo-organic 106

101,106 Radioactivity 94

Sucrose 95

100 Optical Rotation

95

55 Primary Chemical

Sulfur

59 Dioxide in Nitrogen

61 Dioxide Permeation Tubes

65 in Coal

61 in Residual Fuel Oils 44

1 1 1 Rubber Compounding Materials 44

92

67

104

92

44

72

51

50

98

98

Superconductive Thermometric Fixed

Point Devices

Surface Area

Alumina

Carbon Black

Silica

Surface Flammability

Tape Adhesion Testing

Linerboard

Tape, Magnetic

Cartridge

Cassette

Disk

Reel

Technetium

Radioactivity

Temperature

(See Heat Standards)

Calorimetric

Differential Thermal Analysis

Freezing Point

Heat Source

Melting Point

Superconductive Thermometric Fixed Point

Device

Thallium

Radioactivity

Thermal Conductivity

Thermal Expansion

Thermocouple Materials

Thermometers

Thorium

Radioactvity

Tin

Alloy

Chip Form

Freezing Point

Metallo-organic Compound

Radioactivity

Secondary Reference Point

Titanium

Chip Form

Dioxide

Gases in Solid Form

Toluene

Refractive Index

148
Tool Steels

23 Chip Form

34 Solid Form

Trace Elements

57 Biological Matrices

62 Environmental

61 Fuels

76 in Glass

67 Metallo-organic Compound

76 Potassium Feldspar

2,2,4-Trimethylpentane

93 Calorimetric

90 Density

98 Refractive Index

57 Tripalmitin

117 Tuna

117 Albacore

Tungsten

54 A1loy

74 Carbide

71 Concentrate

108 Electrical Resistivity

94 Enthalpy and Heat Capacity

54 Microprobe

94 Thermal Conductivity

95 Thermal Expansion

113 Turbidimetric and Fineness

Uranium

78 Assay

78 Metal

78 Oxide

78 Spike

78 Isotopic

78 Oxide

78 Depleted

78 Enriched

55 Primary

Urea

93 Calorimetric

56 Clinical

56 Microchemical

Urine

66 Fluorine in 66 Mercury in 66 Trace Elements in Vanadium

61 and Nickel in Residual Fuel Oil

62 in Crude Oil

67 Metallo-organic Compound

104 Radioactivity

94 Vapor Pressure

Viscosity

88 Glass

Water

62 Trace Elements in

Water Analysis

64 Halocarbons (in methanol)

62 Trace Elements

68 Wear Metals in Oil

38 White Cast Irons

57 Wine

57 Stabilized

55 Working Standard Chemicals

(See Primary Standard Chemicals)

Xenon

103,106 Radioactivity

115 X-Ray and Photographic

115 Microcopy Resolution Test Chart

115 Photographic Film Step Tablet

115 Reflection Step Tablet

1 1 5 X-Ray Film Step Tablet

107 X-Ray Diffraction

107 Powder Diffraction Intensity

107 Powder Diffraction (Mica)

107 Silicon Powder

1 1 5 X-Ray Film Step Tablet

107 X-Ray Fluorescent Emission Target

Ytterbium

106 Radioactivity

Zinc

45.50 Alloy

45 Chip Form

71 Concentrate

92 Freezing Point

52 High Purity

67 Metallo-organic Compound

111 Oxide

92 Secondary Reference Point

50 Solid Form

50 Spelter (Modified)

Zirconium

45.51 Alloy

93 Barium Chromate (Calorimetric)

45 Chip Form

51 Gases in 51 Solid Form

149

Alphabetical Index by Standard Reference

Material Name

Page SRM

55 Acetanilide 141c

19 Acid Open-Hearth Steel, 0.2% Carbon 19G

55 Acid Potassium Phthalate 84j

19 AISI 1045 Steel 20g

20 AISI 4340 Steel 361 26 AISI 4340 Steel 1261a

20 AISI 94B17 Steel (Modified) 362

26 AISI 94B17 Steel (Modified) 1262a

117 Albacore Tuna RM 50

88 Alkali Lead Silicate Glass 712

66 Alpha Quartz 1878

71 Alumina (Reduction Grade) 699

88 Alumina Silicate Glass 714

88 Aluminosilicate Glass 715

39 Aluminum Alloy 85B

39 Aluminum Alloy 6011 (Modified) 858

45 Aluminum Alloy 6011 (Modified) 1258

39 Aluminum Alloy 7075 859

45 Aluminum Alloy 7075 1259

109 Aluminum Block, Eddy Current 1860

Conductivity

109 Aluminum Block, Eddy Current 1861

Conductivity

109 Aluminum Block, Eddy Current 1862

Conductivity

46 Aluminum Block, Eddy Current 1863

Conductivity

46 Aluminum Brass Standard for 1118

Optical Emission and X-ray

Spectroscopic Analysis

46 Aluminum Brass Standard for CI 118

Optical Emission and X-ray

Spectroscopic Analysis

46 Aluminum Brass Standard for 1119

Optical Emission and X-ray

Spectroscopic Analysis

46 Aluminum Brass Standard for CI 1 19 Optical Emission and X-ray

Spectroscopic Analysis

39 Aluminum Casting Alloy 356 855

39 Aluminum Casting Alloy 380 856

116 Aluminum Cube Ultra Purity RM IC

67 Aluminum 2-Ethylhexanoate 1075a

Page Name SK1V1

92 Aluminum, Freezing Point Standard 44f

95 Aluminum, Magnetic Gram 763

Susceptibility

93 Aluminum Oxide, Melting Point 742

116 Aluminum Rod Ultra Purity RM 1R

101 Aluminum-26 Radioactivity Standard 4229

102 Americium-241 Alpha-Particle 4904F

Standard

103 Americium-241 Gamma-ray Standard 4213

68 Ammonium Dihydrogen Phosphate 194

57 Angiotensin I (Human) 998

55 Anisic Acid 142

57 Anticonvulsant Drug Level Assay 1599

Standard

56 Antiepilepsy Drug Level Assay 900

Standard

103 Antimony- 125-Tellurium- 125m, 4275B

Europium-154, Europium-155 MixedRadionuclide Point-Source Standard

101 Antimony- 125-Tellurium- 125m, 4276B

Europium-154, Europium-155 MixedRadionuclide Solution Standard

25 A.O.H., 0.4C Spectrographic Steel 413

Standard

72 Argillaceous Limestone IC

55 Arsenic Trioxide Reductometric 83d

Standard

55,80 Assay-Isotopic Standard for Potassium 985

80 Assay-Isotopic Standard for Rhenium 989

80 Assay-Isotopic Standard for Silicon 990

55,80 Assay-Isotopic Standard for Strontium 987

106 2% Austenite in Ferrite 488

106 5% Austenite in Ferrite 485a

106 15% Austenite in Ferrite 486

106 30% Austenite in Ferrite 487

The packaging process used in the final stages of SRM production sees the use of many types of containers. The ampules pictured are used

for biological, clinical, and environmental SRM's.
Paee Name SRM

94,108 Austenitic Stainless Steel, Thermal 1460

Conductivity and Electrical

Resistivity

94,108 Austenitic Stainless Steel, Thermal 1461

Conductivity and Electrical

Resistivity

94,108 Austenitic Stainless Steel, Thermal 1462

Conductivity and Electrical

Resistivity

88 Barium Crown Glass 713

67 Barium Cyclohexanebutyrate 1051b

103 Barrium-133 Radioactivity Point-Source 4241

B

Standard

101 Barium- 133 Radioactivity Standard 425 IB

72 Basalt Rock 688

68 Base Oil 1083

25 Basic Electric Spectrographic Steel 404a

Standard

19 Basic Open-Hearth Steel, 0. 1 % Carbon 15g

19 Basic Open-Hearth Steel, 0. 1 % Carbon 335

26 Basic Open-Hearth Steel, 0.1% Carbon 1228

19 Basic Open-Hearth Steel, 0.2% Carbon llh

19 Basic Open-Hearth Steel, 0.4% Carbon 12H

19 Basic Open-Hearth Steel, 0.5% Carbon 152A

19 Basic Open-Hearth Steel, 0.8% Carbon 14f

26 Basic Open-Hearth Steel, 1% Carbon 1227

(Disk)

19 Basic Open-Hearth Steel, 1.1% Carbon 16f

19 Basic Open-Hearth Steel, 1.1% Carbon 337

19 0.4C Basic Oxygen Furnace Steel 178 . 70 Bauxite (Arkansas) 69b

71 Bauxite (Dominican) 697

71 Bauxite (Jamaican) 698

70 Bauxite (Surinam) 696

59 Benzene in Nitrogen 1805

59 Benzene in Nitrogen 1806

61 Benzene Permeation Device 1911

55 Benzoic Acid 140b

55 Benzoic Acid 350a

93 Benzoic Acid Calorimetric Standard 39i 111 Benzothiazyl Disulfide Rubber 373f

Compound

46 Beryllium-Copper Standard 1122

46 Beryllium-Copper Standard CI 122

46 Beryllium-Copper Standard CI 123

Page Name SRM

66 Beryllium on Filter Media 2675

19 Bessemer Steel (Simulated) 8j

0. 1 % Carbon

56 Bilirubin 916

67 Bis(l -phenyl- 1, 3-butanediono) 1080a

copper (II) 67 Bis(l-phenyl-l, 3-butanediono) 1052b

oxovanadium (IV)

98 Black Porcelain Enamel for Directional 2021

Hemispherical Reflectance

98 Black Porcelain Enamel tor Directional 2022

Hemispherical Reflectance

38 Blast Furnace Iron Standard 1143a

(Chill Cast White)

38 Blast Furnace Iron Standard 1144a

(Chill Cast White)

25 B.O.H., 0.4C Spectrographic Steel 417a

Standard

55,80 Boric Acid 951

108 Boron-Doped Silicon Slices for 1521

Resistivity Measurements

74 Borosilicate Glass 93a

87 Borosilicate Glass 623

88 Borosilicate Glass 717

90 Borosilicate Glass 1825

95 Borosilicate Glass, Thermal Expansion 731

57 Bovine Liver 1577a

56 Bovine Serum Albumin 926

56 Bovine Serum Albumin (7% Solution) 927

90 Branched Polyethylene 1476

57 Brewers Yeast 1569

89 Bright Copper Microhardness 1894

Standard

89 Bright Nickel Microhardness Standard 1895

56 Bromobenzoic Acid 2142

72 Burnt Refractory 76a

72 Burnt Refractory 77a

72 Burnt Refractory 78a

67 Cadmium Cyclohexanebutyrate 1053a

94 Cadmium, Vapor Pressure 746

56 Calcium Carbonate 915

67 Calcium 2-Ethylhexanoate 1074a

26 Calcium in Low-Alloy (Silicon) Steel 1254

35 Calcium Molybdate 71 113 Calibrated Glass Beads 1004

113 Calibrated Glass Beads 1017a

113 Calibrated Glass Beads 1018a

113 Calibrated Glass Spheres 1003a

59 Carbon Dioxide in Air 1670

59 Carbon Dioxide in Air 1671

59 Carbon Dioxide in Air 1672

59 Carbon Dioxide in Nitrogen 1674b

59 Carbon Dioxide in Nitrogen 1675b

60 Carbon Dioxide in Nitrogen 2619a

(Combustion Efficiency Gas Standard)

60 Carbon Dioxide in Nitrogen 2620a

(Combustion Efficiency Gas Standard)

152
Page Name SRM

60 Carbon Dioxide in Nitrogen iUi 1 a (Combustion Efficiency Gas Standard)

oU maroon uioxiue in iNiirogen — I'. 1! (Combustion Efficiency Gas Standard)

60 Carbon Dioxide in Nitrogen ZOZJa

(Combustion Efficiency Gas Standard)

60 Carbon Dioxide in Nitrogen ZOZfd

(Combustion Efficiency Gas Standard)

60 Carbon Dioxide in Nitrogen zoz ja

(Combustion Efficiency Gas Standard)

60 Carbon Dioxide in Nitrogen loin zozoa (Combustion Efficiency Gas Standard)

60 Carbon Dioxide in Nitrogen (Mobile ZOjlZ

Source Emission Gas Standard)

60 Carbon Dioxide in Nitrogen (Mobile ZOjj

Source Emission Gas Standard)

60 Carbon Monoxide in Air (Ambient zo i za Air Quality Gas Standard)

OU Carbon Monoxide in Air (Ambient ZO 1 Jd

Air Quality Gas Standard)

60 i^aroon Monoxiue in /\ir ^/\moieni ZO IHd

l^Ualliy was oldllUdlUJ

V^alDOIi 1VIOI1UX1UC 111 1>11IU£,C11 1 677r

CO Carbon Monoxide in Nitrogen lu/OL

l^allJOIl ivlUIlOAlUC 111 l^llltJgCIl 1 679r

59 Carbon Monoxide in Nitrogen 1680b

jy v_-dl UOI1 IVIOIIUXIUC III l>HIOg,CIl 1681b

ftn Carbon Monoxide in Nitrogen (Mobile 2635

Vr\iir/^o OUUICC 1—*' fn icci ah ( .nc \tonnQt*H 1 E-ziniaMOIl Uao OlallUalU^

ftn Carbon Monoxide in Nitrogen (Mobile 2636

OUUlLC CII11SS1UI1 vJdS OldllUdiU^ ou Carbon Monoxide in Nitrogen (Mobile 2637

oUUItc CIIllSSlUIl Uda OldllUdlUJ

ftn ou v^aroon ivionoxiue in rNiirogen ^iviooue 2638

oUUltt CIIUSSIOII \JdS> oldllUdlU^

ftn ou Carbon Monoxide in Nitrogen (Mobile 2639

Source Emission Gas Standard)

ftO ou Carbon Monoxide in Nitrogen (Mobile 2640

Source Emission Gas Standard)

60 i^aruon ivionoxiue in iNiirogen ^iviuunc 2641

Source Emission Gas Standard)

60 i^aroon ivionoxiue in iNiirogen ^iviooue 2642 oource remission oas oianaarci^

1 Ol 1U1 Carbon- 14 Radioactivity Standard 4245

1 ni 1U1 Carbon- 14 Radioactivity Standard 4246

zo Carbon Steel 1224

1 Q <_aroon oteei, u.oyo 13g

JO1ft v_.asi iron 4k

JO Cast Iron 5L

f^act Iron 6g

36 Cast Iron 7G

36 Cast Iron Car Wheel 122h

38 Cast Steel 3 C1173

38 Cast Steel Standard 1138a

38 Cast Steel Standard 1139a

Page Name SRM

1U0 i ha v_didiysi r dCKdge lor LUDricani 1817 low

wxiuaiion

1 1 ^ v^cii iei line jurdwiiigs lor wpucai 11 Qni y\J 1 v^iidrdcier ivecognuion, r> \>,naraciers

114 v^eiuroiu v_-oior cndri Z l uo

1 1 A 114 \_eimuiu v_oiur ivii 7z 107 1 u /

1lUJm l^f^ciiim \_-C3iuiii- 1ij\i/ Rdniim 1 \ /m Point- \Aiirfp , Uai i li 1 1 1 - I . 1

1 1 1 ruin i-ouui 4700R

R ?iHiospti\/it\7 n

H

IVClVJ. Y\JCL\*. \\.y OlCtllLldlU q rH

v_,csiuin- 1 j 1 1 Ddrium- 1 j/m roini-oource 4.707 IvdUlUaC 11 V 1 ly oldUUal U

1 Ml 1U1 I Drill m 1 i / 1-J urn I 1 »^\ W + o »i /~i o t* v_esium-ij/ Durn-up oianaaru 47HZ J

% JJD ;r

1 A

1

1U1 V^CMUIII- 1 Jt rVaUlOaCllVliy Old.llUd.IU 47'SOR

1 1 1 111 Channel Black Rubber Compound J /Dg

1U1 Chlorine-36 Beta-ray Standard 4y4j

i n i 1U1 \_-iiiui uie- jo ixduioacii vuy oianudru 4.4.7 71 JO 1 nl ArAnpri7AiP A r*iiH x^illUl OUCIIZOIC /AL.1U 7 1 44

1 i v^,rirume i\.eiraciory lUJd

~>r\ zu \^-iii uini uin-iviui y Duen uin-/\iummum 1 UOD

oieei zu \_iii oiiiiuiii-ivi(jiy uuciiuiii oieei JUU 3fih zz v_nromium-ivioiy uuenum oteei 11 JJD t. m

zu i^ni oini uin-iN lCKei-ivioiy uuenum oicei 11 J"U ^Qh

zo 1 n t~ /~~\ y~y~~\ ill n^i rvl iaI/ l\ /* av 1 \ i r\/H on i i ^ tool v_-iiromium-i>jicKci-ivioiy uuenum oieei 11 777 zzz ZZ 1 /l n t* /~~\ n^i ill m O rvl i 1/ o 1 1 1 / ^ nl/j n mrvi W tool i /v^nrumium-" i>icKei-w.z oeienium oieei j j y Zj v_.ni uiiiiuni-i> ickci opecirogrdpmc oieei 40Sa tU(5d olallUal U

zz77 1 S 1^ n rr^m 111 m / Mii^L'ol vtppl 1 J 1 1 ! 1 > 1 1 1 1 1 1 1 1 1 - / 1>J1CK.C1 olCCl ^44 ZZ77 1 r\ m \~\ r s~\ r~t~\ 111 m >1 rV) 1 Ix 01 W tool ioLnroiTiiufTi-4 iNicKei oteei JTJ <4S

i n^ IUj rl t" /~\ rvl ill m ^ 1 1^ 0 /H 1 1 /""v ti \ / tl\/ W 1 1 f* *H 0 »~ /1 v.nroniiuiTioi tvauioacuvny otanuaru 44001 TtUULTF

Zj Chromium Steel 1 ft'? ZU Chromium-Tungsten Steel 1 o^Zj v^iiiuiinuiii- v diidui uni opec 11 ugidpnic 407a *+vj / (X OICC1 Vtpp] St^n/HlTTl OlallUal U

JO 1 ri /TM\ 1 OC t O 1 v^noiesieroi Q 1 1 ^ y 1 1 a

0 /

1 n r 1 rr /~\ 1 1 \ o A c r\ oc +Avr I—i i V\ ot-c ^nrysoine /\soesios riuers 1lo/O 87ft

57 Citrus Leaves 1 J /Z

57 Clinical Laboratory Thermometer VJ)4

0 / l^rxHii 1 1 r"

1 \/r*lr\ri(=i Yon(::> f^iit\/r5iti:* \_LJuai l y c iKji itAaiicuu 1 y 1 aic 1055b

Li (""r^H^ilt v^uuai i-ivnji \/hH y uucion1

1mn- 1 m Xnn 1 uiigjicii actpn Xt^^l oicci

1IUjns v^oudii-j / ivduiodLiivny oidiiudi u 4408 T <^

101 f^oHalt-fSO v/UUul l CVy Rl\aUfirlioaptivitv lUaCll v ny oiuiiuui StjinHarHu 4915D

40 Pnmmprirjil V_- VJ 1 1 1 1 1 1 C 1 Ival Rrnn7P i ? 1 V ' II / L StanHarrl OlallUal W for 1U1 1 115

lir^tiA^ol wpucdi h micciATi onn iC t*o\7 cniissioii diiu yv-idy

Snppt L/v.v Lirn^ponip vjvvj l» i\- 1Av nal 1 1 ai vsis y 010 46 Commercial v v ' 111111 1 v, 1 ci. 1 Rronzp 1 ' 1 v ' iii'V Standard ^ " \ ci 1 vi ti 1 vi for 1 vy 1 CI 1 15 Optical Emission and X-ray

Spectroscopic Analysis

46 Commercial Bronze Standard for 1116

Optical Emission and X-ray

Spectroscopic Analysis

153
Page Name aKIVl Page Name SRM

46 Commercial Bronze Standard for C1116 39 Cupro-Nickel, 10% (CDA 706) High 874

Optical Emission and X-ray Purity

Spectroscopic Analysis 55 Cystine 143c

46 Commercial Bronze Standard for 1117 55,100 Dextrose 41b

Optical Emission and X-ray 917

Spectroscopic Analysis o / L/lUUiy Hill Dla^Z-ClIiy lilcAailUalC ) 1057b

46 Commercial Bronze Standard for CI 1 17 9<S y\j Fiinvminm (rlicc Filter Yr\r (~* \\(*f*\t in fT i—' i u yiiiiuui vj iu.ri?> i hici iui \_

i

icl MI i ti 2009

Optical Emission and X-ray (hp mc W/o vv a\/(=>l e*r\ crt Vi Ot 1 t> r\ f vcicilglll oCalC Ul Spectroscopic Analysis uUCLll LJUllLHWIllClCl J> 80 Common Lead Isotopic Standard 981 Fliri i-J \/m 1 1 1 m (t1 *iq<; Fitlpr for C* Vi r* L' i n cr ILi y 1 1 11 U III VJla35 1 I11C1 I \) I v^IICLMllc, 2010

69 Copper Concentrate 332 trip Wavplpn ct h Scalp of

116 Copper Heat Capacity Test Specimen RM5 OlJC^ll UUIlLHUIlItlCI o 36 Copper-Nickel-Chromium Cast Iron 115A 83 OisoHiiim Hvrlroppn Pho^nhatp 18611c

69 Copper Ore, Mill Heads 330 84 OkhH

i

1— i 1 m FT \/H rnopn PVi ocrth a t£* ' 1 >3 U1 U1 11 1 iy Ul UUtll I llDoLUlalC 2186II

69 Copper Ore, Mill Tails 331 56 D-Man J—' i v 1 it 1 1 nitnl 1 1 1 I V ' 1 920

95 Copper-Thermal Expansion 736a 72 Dnlomttip L/UI i M 1 1 1 I 1 L. TJ—i impstnnp 111 IColLMlC 88a

92 Copper, Secondary Freezing Point 45d DnnpH L/UULU XPlatinum Icllllllllll 681L1

Standard 52 DohpH Platinum 681L2

56 Cortisol (Hydrocortisone) 921 J36\J Dnptilp C^a^it Iron 341

56 Creatinine 914 jz., i yjy F1 potnoa 1 R rci H i

i

i-^ict ii i l ci i i\C3iu uaia 1 RJvCMo f^ci ctili \/it\/ v 1 R q ti o

1 y J\aliu 769

26 Cr-Mo Low Alloy Steel 1270 O i a II U a I LI 20 Cr-Mo Steel (ASTM A-213) 291 FlAr^trolx/tir1 1 - III HWiyilC T rr\n 11L7II 365

25 Cr-Mo (SAE 4140) Spectrographic 414 26 Fl^r'trolv/tir* LvlCL lIL7iyLIL- 1IL7I1 Iron 1265a

Steel Standard QA7^, 1UO ins ciccu 1 i f/"\uiy1 \ 7+1 1 t" /~\ t"\ 1 normal ut nun, i iiernidi 1463

25 Cr-Mo (SAE 4150) Spectrographic 427 V^UIlUUCUVHy dllU C-lcClIlCal Steel Standard R1\C31M1 (^CIQt^/ltX/ v 1 1 y 25 Cr-Mo (SAE X4130) Spectrographic 418a QA 1 OR nicciroiyiic iron, i ficrmai 1464

Steel Standard PnnH i loti \/i t \/ anrl PIprtrirQ 1 VJ 1 1 Ll UCllVliy ill l LJ L^lCL 1 1 ILdl 20 Cr-Ni-Mo Steel (AISI 8620) 293 ixcoiMi viiy

23 18Cr-10Ni Steel (AISI 304L) lOlf AQ F' 1 p t rnn 1 c onn \^ QrrnptiP A 1 1 r\\ r UIIIL, allU Ivla^IlCUC f\ll(jy 1159

20 Cr-V Steel (Modified) 363 OlallUal Ci 26 Cr-V Steel (Modified) 1263a HyAQ nitx 1 1 uiuc aiiu ividgiiciiL, Auuy 1160

20 Cr-V Steel (SAE 6150) 30f

57,96 Crystalline Potassium Dichromate 935 oU Enriched Boric Acid 952

96 Crystalline Potassium Iodide, 2032 80 Fn 1

1

l_y(J Ualq 1 - AVA torn LL7II I i^CaLi T i^Q/H Tc/^tor^ir* loL7 LU U1L- OldllLlaiLi NtQtinQrn 982

Heterochromatic Stray Radiant Estuanne Sediment 1646

Energy Standard c-uropiunj- 1 jz roini-oource oianoara 4218E

96 Crystalline (Ruby) Electron 2601 i^uropiuni- 1 jz xvaaioaciivny oianaara 4370B

Paramagnetic Resonance 00,07 cxira uense Ledu oidss 709

Absorption Intensity Standard 53 Fe-Cr-Ni Alloy Microprobe Standard 479a

46 Cupro-Nickel (CDA 706) 1275 54 rc-joi /\noy iviicroprooe oidiiudru 483

46 Cupro-Nickel (CDA 715) 1276 72 Feldspar 70a

39 Cupro-Nickel, 10% (CDA 706) Doped 875 72 Feldspar 99a

35 Ferrochromium (Low Carbon) 196

35 Ferrochromium Silicon 689

35 Ferroniobium 340

35 Ferrophosphorus 90

35 Ferrosilicon 58a

35 Ferrosilicon 59a

35 Ferrosilicon (75% Si) 195

98 First Surface Aluminum Mirror for 2003a

Specular Reflectance

98 First Surface Mirror, Gold on Glass 2008a

154
Page Name sKM

80 Fission Track Glass Standard 961

80 Fission Track Glass Standard 962a

80 Fission Track Glass Standard 963a

80 Fission Track Glass Standard 964

72 Flint Clay 97a

56 Fluorobenzoic Acid 2143

69 Fluorspar 79a

46 Free-Cutting Brass 1103

46 Free-Cutting Brass CI 104

66 Freeze-Dried Urine 2670

66 Freeze-Dried Urine Certified 2671a

for Fluoride

66 Freeze-Dried Urine Certified 2672a

for Mercury

95 Fused-Silica Thermal Expansion 739

102 Gadolinium-148 Alpha-Particle 4907

Standard

57,93 Gallium Melting-Point Standard 1968

105 Gallium-67 Radioactivity Standard 4416L-D

111 Gas Furnace Black Rubber Compound 382a

51 Gasometric Set (1095-1099) 1089

51 Gasometric Standard for Unalloyed 357

Zirconium

51 Gasometric Standard for Unalloyed 358

Zirconium

64 Generator Columns for Polynuclear 1644

Aromatic Hydrocarbons

46 Gilding Metal 1112

46 Gilding Metal CI 1 12 46 Gilding Metal 1113

46 Gilding Metal CI 1 13 46 Gilding Metal 1114

46 Gilding Metal CI 1 14 53 Glasses for Microchemical Analysis 1871

53 Glasses for Microchemical Analysis 1872

53 Glasses for Microchemical Analysis 1873

53 Glasses for Microchemical Analysis 1874

53 Glasses for Microchemical Analysis 1875

117 Glass Fibers for Microanalysis RM 31 96 Glass Filter for Transmittance 2030

Measurement

56,96 Glass Filters for Spectrophotometry 930D

107 Glass Fluorescence Source 477

72 Glass Sand 81a

72 Glass Sand 165a

113 Glass Spheres 1019a

87 Gold Coating on Glass Sealing Alloy 1398a

87 Gold Coating on Nickel 1379

87 Gold Coating on Nickel 1380

87 Gold Coating on Nickel 1399b

54 Gold-Copper Wires for Microprobe 482

Analysis

105 Gold- 195 Radioactivity Standard 4421L

Page Name CDIU

105 Gold- 198 Radioactivity Standard 4405L-B

54 Gold-Silver Wires for Microprobe 481

Analysis

94 Gold, Vapor Pressure 745

36 Gray Cast Iron 334

64 Halocarbons (in methanol) for Water 1639

Analysis

31 High-Alloy Steel (A-743) C1288

31 High-Alloy Steel (AISI 310 Mod.) C1287

31 High-Alloy Steel, (AISI 414 Mod.) C1289

36 High-Alloy White Cast 892

36 High-Alloy White Cast Iron 890

36 High-Alloy White Cast Iron 891

35 High-Carbon Ferrochromium 64c

35 High-Carbon Ferromanganese 68c

20 High-Carbon Steel (Modified) 364

26 High-Carbon Steel (Modified) 1264a

69 High-Grade Fluorspar 180

22 High-Nickel Steel 126c

32 High-Nickel Steel 1158

52 High-Purity Gold 685

52 High-Purity Platinum 680L1A

52 High-Purity Platinum 680L2A

95 High-Purity Platinum Thermoelement 1967

52 High-Purity Zinc 682

20 High-Silicon Steel 179

26 High-Silicon Steel 1134

26 High-Silicon Steel 1135

20 High-Silicon Steel (Calcium Bearing) 125b

20 High-Sulfur Steel 105

20 High-Sulfur Steel 129c

26 High-Sulfur Steel 1136

22 High Temperature Alloy A286 348

33 High Temperature Alloy M308 1197

33 High Temperature Alloy L605 and SI 199

S816

33 High-Temperature Alloy 1206-2

33 High-Temperature Alloy 1207-1

33 High-Temperature Alloy 1207-2

33 High-Temperature Alloy 1208-1

33 High-Temperature Alloy 1208-2

105,117 Homogeneous River Sediment for RM 45B

Radioactivity Measurements

195 Human Liver, Environmental 4352

Radioactivity

105 Human Lung, Environmental 4351

Radioactivity

56 Human Serum 909

155
Page Name SRM

51 Hydrogen in Unalloyed Titanium 352b

51 Hydrogen in Unalloyed Titanium 1086

51 Hydrogen in Unalloyed Titanium 1087

51 Hydrogen in Unalloyed Titanium 1088

101,102 Hydrogen-3 Radioactivity Standard 4361

101 Hydrogen-3 Radioactivity Standard 4926C

101 Hydrogen-3 Toluene Radioactivity 4947

Standard

56 4-Hydroxy-3 methoxy-DL-mandelic 925

Acid (VMA)

118 ICTA High Temperature Set GM 760

Differential Thermal Analysis

118 ICTA Low Temperature Set Differen- GM 757

tial Thermal Analysis

118 ICTA Mod Temperature Set Differen- GM 759

tial Thermal Analysis

118 ICTA Mid Temperature Set Differen- GM 758

tial Thermal Analysis

118 ICTA Polystyrene Differential GM 754

Thermal Analysis

118 ICTA Thermogravimetry Set GM 761

33 Incoloy, 901 and Hastelloy X SI 198

42 Inconels, Alloy 600 (Chips) 864

33 Inconels, Alloy 600 (Solid) 1244

42 Inconels, Alloy 625 (Chips) 865

33 Inconels, Alloy 625 (Solid) 1245

42 Incoloy, Alloy 800 (Chips) 866

33 Incoloy, Alloy 800 (Solid) 1246

42 Incoloy, Alloy 825 (Chips) 867

33 Incoloy, Alloy 825 (Solid) 1247

105 Indium-Ill Radioactivity Standard 4417L-C

25 Ingot Iron Spectrographic Steel 420a

Standard

44 Intermediate Purity Selenium 726

45 Intermediate-Purity Zinc 728

105 Iodine-123 Radioactivity Standard 4414L-C

105 Iodine- 125 Radiactivity Standard 4407L-H

101 Iodine-129 Radioactivity Standard 4949B

105 Iodine-1 31 Radioactivity Standard 4401L-I

106 Iron Foil Mossbauer Standard 1541

104 Iron-55 Low-Energy Photon Standard 4260C

57 Iron Metal (Clinical Standard) 937

70 Iron Ore (Labrador) 692

70 Iron Ore (Nimba) 693

Page Name SRM

70 Iron Ore (Sibley) 27f

70 Iron Ore Concentrate (Canada) 690

105 Iron-59 Radioactivity Standard 4411L-B

111 Isobutylene-Isoprene (Butyl) Rubber 1495

111 Isobutylene-Isoprene (Butyl) Rubber 388L

80 Isotopic Standard for Bromine 977

80 Isotopic Standard for Chlorine 975

80 Isotopic Standard for Chromium 979

80 Isotopic Standard for Copper 976

80 Isotopic Standard for Magnesium 980

80 Isotopic Standard for Silver 978

103 Krypton-85 Gaseous Radioactivity 4308C

Standard

103 Krypton-85 Radioactivity Standard 4235

103 Krypton-85 Radioactivity Standard 4935C

74 Lead-Barium Glass 89

42 Lead-Base Bearing Metal 53e

49 Lead-Base Bearing Metal 1132

67 Lead Cyclohexanebutyrate 1059c

62 Lead in Reference Fuel 1636a

62 Lead in Reference Fuel 1637a

62 Lead in Reference Fuel 1638a

56 Lead Nitrate 928

66 Lead on Filter Media 2674

105 Lead-203 Radioactivity Standard 4420L

92 Lead, Secondary Freezing Point 49e

Standard

90 Lead-Silica Glass 1827

88 Lead-Silica Glass (Viscosity) 711

88,109 Lead-Silica Glass for dc Volume 624

Resistivity

88 Lead-Silica Glass for Dielectric 774

Constant

80 Lead 206 Spike Assay and Isotopic 991

Solution Standard

39 Leaded-Tin Bronze Alloy 1035

1 14 Light-Sensitive Paper 700d

114 Light-Sensitive Paper 701d

114 Light-Sensitive Plastic Chip 703

90,94 Linear Polyethylene 1475

90 Linear Polyethylene 1482

90 Linear Polyethylene 1483

90 Linear Polyethylene 1484

116 Linerboard, Standard for Tape 1810

Adhesion Testing

56,96 Liquid Absorbance Standard for 931c

Ultraviolet and Visible

Spectrophotometry

56 Lithium Carbonate 924

69 Lithium Ore 181

69 Lithium Ore 182

69 Lithium Ore 183

26 Low-Alloy Steel, (AISI 4130) 1225

26 Low Alloy Steel 1226

26 Low Alloy Steel (A242 Mod.) C1285

20 Low-Alloy Steel, AISI 4130 72g

26 Low Alloy Steel (AISI 1526, Modified) 1269

26 Low-Alloy Steel (Hy 80) 1286

156
Page Name SRM

26 Low-Alloy Steel Set (661-665) S668

20 Low-Carbon Silicon Steel 131c

20 Low-Carbon Silicon Steel 1036

22 Low-Carbon Stainless Steel (AISI 166c

316L)

42 Magnesium-base Alloy 171 67 Magnesium Cyclohexanebutyrate 1061c

56 Magnesium Gluconate Dihydrate 929

86 Magnetic Coating on Magnetic 1365a

Substrate (Nickel on Steel)

86 Magnetic Coating on Magnetic 1366a

Substrate (Nickel on Steel)

87 Magnetic Coating on Non-Magnetic 1367a

Substrate (Nickel and Chromium

on brass

112 Magnetic Tape, High Density 6250

Manganese Fluoride, Magnetic Gram 766

Susceptibility

95 Manganese Ore 25d

71 Manganese-54 Point-Source 4997E

Radioactivity Standard

103 Manganese-54 Radioactivity Standard 4257

101 Manganese Steel 100B

20 Manganous Cyclohexanebutyrate 1062b

67 Maraging Steel 1156

32 Metal on Quartz Filters for 2031

Spectrophotometry

96 Metals on Filter Media 2676b

66 Methane in Air 1658a

59 Methane in Air 1659a

59 Methane in Air 1660a

59 Medium Manganese Spectrographic 405a

Steel Standard

25 Mercaptobenzothiazole 383a

111 Mercury, Freezing Point 743

92 Mercury-203 Radioactivity Standard 4418L

105 Mercury in Water, /xg/mL 1641b

62 Mercury in Water, ng/mL 1642b

62 Microcopy Resolution Test Chart 1010a

115 Microprobe Standard - Cartridge Brass 478

53 Mineral Glasses tor Microanalysis 470

53 Molybdenum Concentrate 333

69 Molybdenum, Heat Capacity 781

94 Molybdenum-99 Radioactivity 4412L-H

Standard

105 Molybdenum-Tungsten-Chromium- 134A

Vanadium Steel

23 Naval Brass Standards tor Optical 1 106

Emission and Spectroscopic

Analysis

46

XT 1 T\ O , 1 1 £* /~\ , • 1 Naval Brass Standards for Optical CI 106

Emission and Spectroscopic

Analysis

46 Naval Brass Standards for Optical 11

110m/ Emission and Spectroscopic

Analysis

46 Naval Brass Standards for Optical C1107

Emission and Spectroscopic

Analysis

46

Page Name SRM

46 Naval Brass Standards for Optical 1108

Emission and Spectroscopic

Analysis

46 Naval Brass Standards for Optical CI 108

Emission and Spectroscopic

Analysis

88 Neutral Glass 716

79 Neutron Density Monitor Wire 953

36 Nickel-Chromium Cast Iron 82b

36 Nickel-Chromium-Molybdenum Cast Iron 107C

20 Nickel-Chromium Steel 32E

42 Nickpl-Onnnpr 1 11VIW1 WJUUtl IAllov 11IUJ 67 Nickel Cvclohpxanpbntvrfltp 106^h

43 Nickel Oxide, No. 1 671

43 Nickel Oxide No. 2 672

43 Nickel Oxide, No. 3 673

101 Nickel-63 Radioactivity vStandard 4226

39 Nickel Silver (CDA 762) 879

39 Nickel Siver (CDA 770) 880

25 Nickpl SnpotrnpTflnhir Stppl StanH^rH 409b

95 Nickpl i ~ i e rv e i Snhprp 'lie I lvfaonptic' 1*1 Citz.1 le llv Itiui rVfompnt 1 1 e 1 1 I 772

20 Nickpl Stppl 33d

38 Ni-Cr-Mo-V Steel 1 173

55 Nicotinic i ^ i \^ vy villi e /Arid v e i el 148

103 Niohiiim-94- Gamma-rav StanHarH 4201 B

59 Nitric l nil lv Oxirlp V f \ luv in111 Nitroppn I 1111 \j cL e 1

1

1683b

59 Nitric i nil IV Oxidp ' in Nitroppn

/ y\ iul 111 1 11 11 1

1

1684b

59 Nitric 1 'ill IV Oxide ' in Nitroopn

l ri 1 vl v. Ill 11111 l_i V 1

1

1685b

59 Nltnr* inn ii. {"^iyiHp kj aiuc inhi Mitri"\crpn inn UKCii 11 686h uouu

59 Nitric 1 1111 IV Oxidp V ' A I l_l V- in111 Nitrocfpn 11111 V EL V 1

1

1687b

60 Mltrir lillllv1 iWlHp UA1UC In Nitrnirpn ^\/4ririil(^ 111 11111 UgCll ^IVIUUIIC ~! / JUUILC CIllljMUIl vJda OlallUalU^

60 Nitric Oxide in Nitrogen (Mobile 2628

Source Emission Gas Standard)

60 Nitric Oxide in Nitrogen (Mobile 2629

Source Emission Gas Standard)

60 Nitric Oxide in Nitrogen (Mobile 2630

Source Emission Gas Standard)

60 Nitric Oxide in Nitrogen (Mobile 2631

Source Emission Gas Standard)

60 Nitrogen Dioxide in Air (Stationary 2653

Source Emission Gas Standard)

60 Nitrogen Dioxide in Air (Stationary 2654

Source Emission Gas Standard)

60 Nitrogen Dioxide in Air (Stationary 2655

Source Emission Gas Standard)

60 Nitrogen Dioxide in Air (Stationary 2656

Source Emission Gas Standard)

61 Nitrogen Dioxide Permeation Device 1629a

57 4-Nitrophenol 938

157
Page Name SRM

36 Nodular Cast Iron 342a

59,113 Nominal One Micrometer Polystyrene 1690

Spheres

57 Non-Fat Powdered Milk 1549

86 Nonmagnetic Coating on Magnetic 1359

Substrate (Copper and Chromium

on Steel)

86 Nonmagnetic Coating on Magnetic 1360

Substrate (Copper and Chromium

on Steel)

85 Nonmagnetic Coating on Magnetic 1361b

Substrate (Copper and Chromium

on Steel) . 85 Nonmagnetic Coating on Magnetic 1362a

Substrate (Copper and Chromium

on Steel)

86 Nonmagnetic Coating on Magnetic 1363a

Substrate (Copper and Chromium

on Steel)

86 Nonmagnetic Coating on Magnetic 1364a

Substrate (Copper and Chromium

on Steel)

119 NPL GM Alpha Alumina 8005

119 NPL GM Alpha Alumina 8006

119 NPL GM Alpha Alumina 8007

119 NPL GM Alpha Alumina 8008

119 NPL GM Graphitized Carbon Black 8001

119 NPL GM Graphitized Carbon Black 8002

119 NPL GM Melting Point Set 8000

119 NPL GM Non-porous Silica 8003

119 NPL GM Non-porous Silica 8004

111 N-tertiary-Butyl-2-benzothiazolesulfen- 384d

amide Rubber Compound

72 Obsidian Rock 278

67 Octaphenylcyclotetrasiloxane 1066a

111 Oil Furnace Black Rubber Compound 378b

74 Opal Glass Powder 91

Optical Emission and X-ray 1102

46 Spectroscopic Analysis

Optical Microscope Linewidth 474

85 Measurement Standard

Optical Microscope Linewidth 475

85 Measurement Standard

85 Optical Microscope Linewidth 476

Measurement Standard

Pane Name SRM

64 Organics in Shale Oil 1580

102 Oxalic Acid 4990C

51 Oxygen in Ferrous Materials 1090

Ingot Iron

51 Oxygen in Ferrous Materials 1091

(Stainless Steel AISI 431)

51 Oxygen in Ferrous Materials Vacuum 1092

Melted Steel

51 Oxygen in Maraging Steel 1094

60 Oxygen in Nitrogen (Gas Standard) 2657

60 Oxygen in Nitrogen (Gas Standard) 2658

60 Oxygen in Nitrogen (Gas Standard) 2659

51 Oxygen in Titanium-Base Materials 355

51 Oxygen in Valve Steel 1093

57 Oyster Tissue 1566

95 Palladium, Magnetic Gram 765

Susceptibility

109 Penetrant Test Block 1850

105 Peruvian Soil, Environmental 4355

Radioactivity

64 Petroleum Crude Oil 1582

68,71 Phosphate Rock (Florida) 120b

39 Phosphor Bronze (CDA 521) 871

39 Phosphor Bronze (CDA 544) 872

31 Phosphonzed Copper, Cu VIII C1251

31 Phosphonzed Copper, Cu IX C1252

31 Phosphorized Copper, Cu X C1253

105 Phosphorus-32 Radioactivity Standard 4406L-G

115 Photographic Step Tablet 1008

57 Pine Needles 1575

72 Plastic Clay 98a

95 Platinum, Magnetic Gram 764

Susceptibility

102 Plutonium-238 Alpha-Particle Standard 4906B

101 Plutonium-240 Alpha-Particle Emission- 4338

Rate Solution Standard

101 Plutonium-239 Alpha-Particle Solution 4331

Standard

101 Plutonium-242 Alpha-Particle Solution 4334B

Standard

77 Plutonium Isotopic Standard 946

77 Plutonium Isotopic Standard 947

77 Plutonium Isotopic Standard 948

55,77 Plutonium Metal 949f

77 Plutonium Metal (Standard Matrix 945

Material)

77 Plutonium-244 Spike Assay and 996

Isotopic Standard

65 Polychlorinated Biphenyls in Oil 1581

89 Polycrystalline Alumina Elasticity 718

Standard

108 Polyester Plastic Film for Oxygen 1470

Gas Transmission

91 Polyisobutylene Solution in Cetane 1490

90 Polystyrene 1478

90 Polystyrene 1479

90 Polystyrene (Broad Molecular Weight) 706

90,94 Polystyrene (Narrow Molecular 705

Weight)

59,113 Polystyrene Spheres 1691

75 Portland Cement (Black) 1880

158
Page Name SRM

75 Portland Cement (Blue) AK035

75 Portland Cement (Clear) Aln

75 Portland Cement (Gold) Ai/i OJ4

75 Portland Cement (Green) £Wo1 0

75 Portland Cement (Pink) 637

75 Portland Cement (Red) Al 1 03 J 75 Portland Cement (White) 10 0 1 loo 1

/5 rortland Cement (Yellow) A1A OjO

113 Portland Cement Fineness Standard 1 1 A —

1 14n

0/1 84 Potassium Chloride ZZUZ

56 Potassium Chloride (Clinical Standard) n 1 o 9 18 55 Potassium Chloride (Primary QQQ yyy

Chemical)

Qlyi Potassium Chloride for Solution 1 OJJ

Calonmetry

55 Potassium Dichromate 1 1A^1 liod

/TO 68 Potassium Dihydrogen Phosphate inn 200

O "> 83 Potassium Dihydrogen Phosphate 1 CAT,-. loolc

O A 84 Potassium Dihydrogen Phosphate ~) 1 OAT Z 1 001

67 Potassium Erucate 1076

76 Potassium Feldspar 607

84 Potassium Fluoride 2203

83 Potassium Hydrogen Phthalate 1 o c 185e

018j Potassium Hydrogen Tartrate 1 00

OA90 Potassium Iodide with Attenuator ~>ni i AC00 Potassium Nitrate 1 Q

1

lyj

83 Potassium Tetroxalate 1 QO l 89

aiol Powdered Lead Based Paint 15/9

64 Priority Pollutant Polynuclear 1 A/1 "7

1 04 / Aromatic Hydrocarbons (in

Acetonitrile)

J7 Propane in Air 1 AASVi 1 00 JO

^0 Propane in Air 1 AAAl-> 1 OOOD

jy riOpdJlC III SWT 1 A.A.7h 1 OO / D Jy rrupdnc in /\ir 1 A.A.0.K

1 OOOD

Propane in Air 1 AAQK 1009D

OU Propane in Nitrogen (Mobile Source 1 A/1 1 2643

Emission Gas Standard)

60 Propane in Nitrogen (Mobile Source "> A/1 A 2t>44 Emission Gas Standard)

60 Propane in Nitrogen (Mobile Source 1 A/1 S 2045

Emission Gas Standard)

60 Propane in Nitrogen (Mobile Source 1 A/1 A 2o4o

Emission Gas Standard)

60 Propane in Nitrogen (Mobile Source 1 A/1 1 Zo4 / Emission Gas Standard)

An60 Propane in Nitrogen (Mobile Source 1 A/1 Q Z04o

Emission Gas Standard)

An60 Propane in Nitrogen (Mobile Source i c a n 2649

Emission Gas Standard)

Anou Propane in Nitrogen (Mobile Source Z05U

Emission Gas Standard)

OU Propane in Nitrogen and Oxygen 1 A< 1 Z05

1

(Mobile Source Emission Gas

Standard)

ou Propane in Nitrogen and Oxygen ~) A^l Z05Z

(Mobile Source Emission Gas

Standard)

57,96 Quartz Cuvette for Spectrophotometry 932

93 Quartz for Hydrofluoric Acid 1654

Solution Calorimetry

Page Name SRM

66 Quartz on Filter Media 1 zC! "7fi 2679a

57,96 Quinine Sultate Dihydrate 936

OA80 Radiogenic Lead Isotopic Standard HOI 983

104 Radium-226 Gamma-ray Standard 4956

104 Radium-226 Gamma-ray Standard 4957

104 Radium-226 Gamma-ray Standard A C\ C O 4958

104 Radium-226 Gamma-ray Standard A C\CC\ 4959

104 Radium-226 Gamma-ray Standard 49oU

1 f\

A

104 Kadium-22o Gamma-ray Standard 49ol

104 Radium-226 Gamma-ray Standard 4962

104 Radium-226 Ciamma-ray standard 4963

1 f\ A 104 Radium-226 Gamma-ray Standard A C\tC A TO 4964B

1 C\ A 104 Radium Standard (Blank Solution) 4952B

1 f\ A 104 Radon-226 tor Radon Analysis 4953C

A

£~ 46 Red Brass 1 109

a a 46 Red Brass CI 109

46 Red Brass 1 1 1 A

1 1 10

A £ 46 Red Brass 1 1 1 A ClllO

46 TO „ ,4 TO — Red Brass 1111 1111

46 TO J TO Red Brass

/~> 1111 Cllll

70 Reduced Iron Oxide 691

1 AO 108 Reference Fuel Isooctane 1 O 1 Zl „

1 8 16a

108 TO _ C „ F^. „i tt , Reference ruel n-Heptane 1 oi c» I815a

115 TO C\ a-

' — Oi- T l_ 1 * Reflection Step I ablet 2061

yy Refractive Index Glass 1 0!f\

1 oZU

99 Retractive Index Silicone Liquids i on 1 823 nn99 TO f T J O J T Z"1 1 Retractive Index, Soda-Lime Glass

i oil 1822

OA89 Relative Stress-Optical Coetticient *7 AO 708

26 Resulfurized-Rephosphorized Steel C1221

5 / Rice Flour 1 *\AC

1 JOo

AT62 River Sediment 1 C*A ^

1 04j

105 River Sediment, Environmental /I ~i CATO 4350B

Radioactivity

105 Rocky Flats Soil Number 1, 43 j3

Environmental Radioactivity

57,93 Rubidium Melting Point 1969

/ 1 I> ,,(-.1 f~\ — ~ Rutile Ore 0 /U OA84 Scanning Electron Microscope A 0/1^ 484C

Magnification Standard

84 Scanning Electron Microscope ZUOV ")nAQ

Performance Standard

111 Secondary Standard Flexible Disk 1 1 1 r\ 51 1U Cartridge (Computer Amplitude

Reference)

1 lz Secondary Standard Magnetic Tape JZUU nnn

i1 n12 Secondary Standard Magnetic Tape 1 Ann 1 OUU

^dsseue

112 Secondary Standard Magnetic Tape 3216

Cartridge (Computer Amplitude

Reference)

98 Second Surface Aluminum Mirror for 2023

Specular Reflectance

159
Page Name SRM

no9o occonu ouridce /\iuminum iviirror ior

Specular Reflectance

ORy& occonu ouridCc /\iurninurn iviirror wnn

weuge ior opccuiai ixeneciance

3

1

Selenium-Bearing Steel I I /UD

IID oeiemum- / J IVaUlUaCllVliy oldllUdlU 44.0QT r>

5y oneei Didss ^7F

15 Silica Brick 1 QR

HI Silica Brick I yy jy Silicon-Aluminum Alloy R7q o /a

5y Silicon Bronze 11 SRJoAA

y\J Silicon Density Standard

ony\J oiiicon uensuy oidncidru 1 R41

5 J Silicon Metal J la

i m oiiicon rowaer, opacing oidiiudru f\AC\ct OtUd

ior yv-idy L-MiiidLTiuii

1 nfl 1U0 oincon rower Lyevice L^evci 1 JZZ

Resistivity Standard

1U0 oincon ivesisii vny oidnadru ior rrAiuy 1 J L J

0/ Silver 2-Ethylhexanoate 11UD77q 1 la CKyj oil ver-vjuiu i iiei iiiucuupic w n c / jj

QA oiivci, vdpui nCbaui

c

74.R /to

V4, lUo irit vf^* f~\ f\ «"\ r\ A rr^ m Art 111 r\ rx C tan ointereu ana /\rc-v_asi i ungsien, 1 4-D J Thermal Conductivity and

meciricdi xvesisiiviiy

O/l 1 AO 94, lOo Sintered and Arc-Cast Tungsten, 1 AAA

l iieriridi v_oiiuuLiiviiy diiu Electrical Resistivity

Q/l 1 HR V4, 1U0 Sintered and Arc-Cast Tungsten, 140 /

i nermdi v^onuucuviiy diiu Electrical Resistivity

oiniereu ana /\rc-i~asi i ungsien, 11 4AR too

Thermal Conductivity and

Electrical Resistivity

115 Smoke Density Chamber Standard lUU/a

(Flaming Exposure Condition)

115 Smoke Density Chamber Standard i nnAK lUUOD

(Non-flaming Exposure Condition)

74 Soda-Lime Container Glass 621

74 Soda-Lime Flat Glass 620

74 Soda-Lime Float Glass 1830

90 Soda-Lime Glass 1826

74 Soda-Lime Glass Powder 92

Page Name SRM

HA/4 Soda-Lime Sheet Glass 1 Q -1 1 1 0 J 1 QH Soda-Lime Silica Glass A77 OZZ

QR Soda-Lime Silica Glass 7/11Un

oy Soda-Lime Silica Glass for Liquidus 771

Temperature

83 OOUIUIII DICal UUIldLC 171a

84 Sodium Bicarbonate 7 1 Q 1 83 Sodium Carbonate 1 Q7-j 1 yLa 84 Sodium Carbonate ">l 1

1 Q7y l 84 oOCllUIIl ^IllUIlUC 2201

_7 VJ Sodium Chloride (Clinical Standard) Q 1 Q D / Sodium Cyclohexanebutyrate 1U0VD

c c 55 Sodium Oxalate Reductometnc 4nVi 4un

Standard

oouiuni r yi uvdic 910 7 1 U

snOJ oOQium i eirduordie L/cu-aiiyuidtt, 1 0 / u

1 l-« /~\ T" rt V i ^jDorax ) SolHpr 127b

\nlnpr OVJ 1 U C

1

1131

81 OUCClal I'lLI^lCClI \w- Ul 1 lull IC1 L/V7 1 9940

1 J gdl. 81O 1 O UCLlal I y UL ILal V. V ' 1 1 L t_l 1 1 1 v j . _

1 J til. 9941

o 1 SnP^i^l OUCLJul M1> 1 1 1 q r" i n t'linpr 1 \/ T~\f^* A ULlCal V-Ul 1 lalllCl I yUC AY, 9942

10 gal. 0

1

oucLiai i > ucicdi v_-tji i tail ici , i y pc rt., 9943

J J gal.

OpCv-ldl INUClCal IVlalCI lal rdLAagC 9910

oj^w^- n vj^i apiiic iiil,*.'i ii uii aiiu 461

Luvv-/\iiuy oicci oidiiLidiLi ^rvuuj

1f\ > > | 'C L t ! V » 1 U l ' i 1 \\. lll^VJL 11 Ull allU 462

L-U W-r\llL)y olCCl oldlltidlU ^IS.L)L1^

- .' j 'C v. l 1 v ' L« I tl ' 1 1 1 L lll^Wl I H Ml allU 463

TL^UW-AVIlUy f~\wi All*^\/ t Ai 1 VtQnnci Tf\ ( %) A^/n i olCCl OlallUalU ^IVUU^

j V >C ^_ l 1 l ' t_; 1 cl I • 1 1 1 111L;WI 11 Ull aiiu 464

T A^\17 A1l/~\\7 a^»o1 ^tQn*Hci T*/H (K A~\(H 1 l--UW-/\lHJy OlCCl OlallUdl U ^IVUU,/

^r\pr*trc\cr ra r^Vii p Tn ont Iron a tiH .Jj 'CC 11 Wt_,l (.1 p 1 1 1 L. IlltJ,*-'! 11VJ11 allVJ 465

T i^\i/ A 11*^\7 ^

t

Low-ZAiiuy a^ *"> 1 VtonHarn (\<r\f\ 1 oicei oidiiudiu ^ivuuj

OUCL 1 1 Wgi apiiic iiigvji 11 Ull aiiu 466

jLvOW-/\iioy oieei oidnudru ^ivouj oucc Snprtrntrrannip li \jtLi apiii^. Incot iiitiv'i Iron ii uii aiiLi 5*nH 467

Low-/\noy oieei oianaaru ^i\.ou^

Z0 opcL. II Dgl dpillC lllgOl 1HJI1 allU 468

LOw*A.uoy oteei otanaara ^Koaj

NnpptrnoTanip OpC^ll vJ^l til 11C Ttifrot 1 1 1 L;", H 11Iron Ull til anri1 LI 1166

LOW-A.noy oieei oianaaru

ju ^nprtrnrrrannip XtQinl^cc Xt^f3 OUCC ! 11 U5I dpi 11 V~< O LallllCaa OlCCl 442

Standard

opCCH Ogl dpillC OlallllCoo OLCCl 443

Standard

opCC ll vJg,* apillL. vjlallllCao OlCCl 444

olaliual Li 31 Spectrographic Stainless Steel D849

Standard (Disc)

31 Spectrographic Stainless Steel D850

Standard (Disc)

31 Spectrographic Stainless Steel 445

Standard (Group II)

160
Page Name SKM Page Name

J 1 Snectroi^ranhir . V. V. 1 1 v/£ll CX L_f X 1 1 V-r Stainless . ..' LCXllllV^OO Steel . ' [Vvl 446 50 opcciivjacopic i lLaniuiii-jDasc oidncidru

StanHarH V—J I CXI 1 vl c-l 1 vl fOroun V ^ ' 1 V ' LI J. ' TT^ XX/ SO opcciroscopic i lidniurn- jjabc oiantidru

31 Snectroeranhic . -' V- V- I 1 V 1 CX . J 1 \ \ V. Stainless I CXI 111^ ' i Steel J L V^ \-> I 447 SO Vt^pr, trr\c/^r>r\ii^ I itonnim Unco t o n 'i rri opccii uscupic i lidiiiuiii-odsc oidiiudru

StanHarH 1—' I CXI 1VXCII Vl fCrroiin y v 1 1 WUU TT^ 11/ 1 UD opncroiuizcu iron v^druiac in rcrnic

31 Snertropranhic Stainless Steel 448 1 08 W T~ O f\ 1 TA /T \* DCIcto /"* £^ fill t~\ Tl opreduing ivesisiance v^aiiDrduon

StanHarH O L cxl llltxl VJ ffrronn \ V_J JUUU TT^ A X f (100) n-Type Silicon

J311 iJL/C^llWi^IcxlJIlH*, Sneptrocranhie Stainless OlCUIllCoo Steel '.Hill 449 1 flfi lUo Spreading Resistance Calibration

OlcxllUcxlll StanHarH ^C~Troun Til V

1 v ' 11 L ' 11/ (100) p-Type Silicon

J31I Sripr'trooranrnr* . ) 'l L i 1 \ 1 1,1 M 111 OlcxllllCoo StmnlpQQ Jlttl Stppl 450 1 f*0 1U5 Spreading Resistance Calibration

StanHarH ff~rronn TT^ (111) n-Type Silicon

31 vJUt-V. Sneptrnorannip 11 U tl dUlllV, Stainless JUillllL i> Steel .Jill 1 849 Spreading Resistance Calibration

Standard c_7 L CX 1 i \J CX 1 vX (Rodl \ 1\\JU / (111) p-Type Silicon

J 1 Snertropranrnf* .jl 'L'l 1 M 1 t,i i)l 'II IV. omilllvao Stainless Steel J 1 1 1 1 850 D / Stabilized Wine

Standard . 1 CXI 1 VI CXX VX (Rod) \ X V V_7 VX / zz Stainless Steel

25 Sneptrooranhif* OULL l 1 V 'L,l il M 1 1 L Steel vJll lI OlcxllUcxlll StanHarH ^Dise^ V 1—' nL | D803a is vji/ a ZZ Stainless Steel

25 SneptroPTanrnp > L' 11 11 V.^^1 1.1 |

' 1 1 1 1 vjlH-1 Steel StanHarH OlCXllUCXlll ^T^isr^ y IS 1 3lr / D807a ZZ Stainless Steel

25 OSneetropranriir* I ,> 11 1 1 17 Cf, Jl cx 17 1 1 1 1- Steel JlLl 1 StanHarH OlcxllUcxlll fRoH^ ^ 1\UU f 803a ZZ stainless steel (^Aioi 44d)

25 OL/v-V.lll'i^lcxL'lllv, Sneptrno"ranhip Steel -Jllll StanHarH OlCXllllCll U fRoH^ ^ 1\UU ) 804a 31 Stainless steel (A1S1 44o)

25 iJUlV, Snectropranhip 11 Wgl uUlllL JILvl Steel OlCXllllCXl StanHarHll ^RoH^ y IV I'll J 805a ZZ Stainless Steel, 13% Chromium

25 Sneptrocyrannie . J| 'l l l 1 1. 'L,l ill Mill. OSteel I v, v. 1 vJlCXllllCXl StanHarHU fRoH^ y 1\UU ) 807a 1

1

31 Stainless Steel, Cr-Ni

25 OL7v-v-lll7fcilclL7111v< Sneptropranhip OlCCl Steel iJStanHarH lullUul U ^RoH^ \ i\UU J 808a 31 Stainless Steel, Cr-Ni

Snectropranrnr* . I 'll 11 ii j

' 1 J ! 1 Steel .Jill 1 OLtxllllcxlll StanHarH fRoH^ I l\l)U ) 809a 31 Stainless Steel, Cr-Ni

25 vJSneptropranrnp l

' 1 1- 1 1 v ' fc, 1 CX 1 ' 1 1 11. Steel -J I I 1 1 OlUllVJCll StanHarHU fRoH^ \l\vVJ / 817b 31 Stainless Steel, Cr-Ni

25 Sneetropranrnp l/L7lll.ll7fcilClLJlllv- Steel Jill 1 OlcxllUcxlll StanHarH fRoH^ y l\l'U f 820a 31 Stainless Steel, Cr-Ni

25 Snertropranhir tj Uvl LI l'/nl ClUllll. Steel kj StanHarH U Ut 1 lllill IJ fRoH^ I IM'll / 821 31 stainless steel, lr-iNi

25 Snertroerranhic < ' i ' v. v. i 1 v/ cl i cx yj 1 1 1 v Steel i w V' i StanHarH <j l cx 1 1 vl cx i vJ fRoHl y i\wv. i i 827 31 Stainless Steel, Cr-Ni

34 Snectropranhic <J L' V^- c i V / 1 cx VJ 111V Tool X V/Vyl Steel ^—J I ^ V p StanHarH w_7 i CXI I v.* CX 1 V_i 436 1 1 31 Stainless Steel, Cr-Ni

34 Spectrographic Tool Steel Standard 437 3

1

W til n loco ^ tool t* ^Vl i \ n r\ oidinicss otcci, v^r-iNi-ivio 34 Spectrographic Tool Steel Standard 438 3 1 Qt'iinlpcc oldinicSS Cfool olccJ, C^r ^r-l>ll-lND Mi MK

34 Spectrographic Tool Steel Standard 439 3 1 34 Spectrographic Tool Steel Standard 440 1U/ i m to in 1 oc*o W too 1 r /~\ v \Jt 1 1 1 n cx t* r*o\ri/^o oidinicss oieei ior ruling or i^revicc

34 Spectrographic Tool Steel Standard 441 Pnrrncinn

34 Spectrographic Tool Steel Standard 837 95 ^tciinlf^cc Olull 111 >> OlCCl 'itool I

1 h11CI prmilldlq 1 L.. Ynnricinn A L 'al 1 M I

1 1 1 34 Spectrographic Tool Steel Standard 840 11111 1 CtoQi-i,^ OLCdlll. A pin T?IxliUUCI iinnpr \V_UIIipvJUIlU c\wr\ v\c\ \ i nn

34 Snectro£?ranhic Tool Steel Standard D837 11Q!7 Stp^l OlCCl (A TST 1 1 1 1 v rtlJl 1 _ 1 1 ) (Disc) 2fi OlCCl i2 1 o 1 ( | o 'i r\ Rpo nn (t i y L^CaVJ-JjCdl WifL) 34 Sneetropranhie iJUV-vll v/ft' Cipllll Tool X V 'V ' 1 Steel JIV.L 1 StanHarH i*J l CXI 1 \J CXI U D840 D / oiii>iiiiuiii v^yciuiicAdiicuui yi die

(Disc) 1 flft 1 uo oiruiiuuiii-o j ivduiOaCiiviiy oidiiudiu

34 Sneetrop'ranhip . U M II I IL,| J Mill Tool ll'U'l Steel . Ill 1 1 StanHarH .'Idl llKil U D841 i1 niU

1

oiron u uin-o y ixduiudcuviiy oidiiudi

u

(Disc) 1 1

1

111 Ct\; o rpn p» hiitciHi^n^ R nhh^r ^T^vr*^ 1 S^10^

i y i enc-u u idiiiciic i\.uuuci y i y pc 1 JUUJ Sneetropranhir ' I'll l 1 \ ' t-, 1 til M 1 IV *7inr-Rase j 1 1 IV I/U.il Die-C^astino" 1 * 11 V i ! > 111 1 L 625 j / ^nccwxrwwt v\\f* \— rpp? mo Pi~i int oucciiioiiiniic r^iccz,in^ rumi

Alloy A 55 100 OUll UjI

Sfl SnectroPTanhif* UULv 11 v/ 1 l I i ' 1 1 1 1 *7inr*-Rase ' 1 1 1 I UCX 31 Die-Castin i J 11 V CX i3 1 1 1 1 e~q 626 f\f\ uu ^lilrQt^ OLilldlC cxllU qtiH ^Jitratf . > 1 l l il l L

1 onI'll F*iltRr 1 111CI \/ipHia MllJIJ Alloy B 59 Si 1 1 fi i r T^ir\ y i

H

& in Nit rn crpn OllllUl LylUAlUC 111 1 'I 1 1 1 vJ^,Cll 50 Sneetropranhic kJUvVll Vgl UL/lllV 7inc- - .III 1, Rase « Jtt IV. Die-C^astin J—* IV. V/UJllllgq 627 S9 Sulfur O U 1 1 Ul DioxiHe \-J 1 v7 A 1 II I in111 Witroo~en I'lllll'gCll Alloy C jy Sulfur OUlllxl T^ifiYiH* *—J l IJ A1 Ul

3 in111 Nitrnopn i ^ 1 1 1 vJg,Cll 50 Sneetroo, vJUllll ranhie CX L' 1 1 1 1 Z—7me-Rase ill llv Udol Die-C^astmp" J--* 11 >—- .3 I 1 I I L_, 628 J" OUlllil Snlfnr IjioyiHf* 17H 'AIUI in111 ^JitrotTRn ^ 1 I 1 y ' — I Allov illivj y DJ

s S9 OUlllil Si 1 1 fi i r T^ir\Y L/1UA1UC iH p i111n Nitrntjpn J. 'I 1 1 1 vJ^Cll 50 ^nprtrnoTfiriiiip OUCv-ll 7inr*-RaQP riiP-i^a^tin cr I'g, 1 dWllll. 1111 \J £X ol l_y It7- V^CXCHlllg, 629 O

v 1U1 1

1 t1

1Ul1 » Til 1_-/1vJA1LIC /a vifip in111 Mii'illlt rnnpn UuCIl

Alloy E

50 Spectrographic Zinc-Base Die-Casting 630

Alloy F

50 Spectrographic Zinc Spelter Standard 631

50 Spectroscopic Titanium-Base Standard 641

50 Spectroscopic Titanium-Base Standard 642

50 Spectroscopic Titanium-Base Standard 643

SRM

644

645

646

493

2529

2528

2527

2526

1590

121d

123c

160b

367

1267

73c

CI 151 1151a

CI 152

1152a

C1153

1153a

C1154

1154a

1155

1172

1171

1890

738

372h

368

1169b

1070a

4403L-B

4945D

386h

1970

17c

2673

1661a

1662a

1663a

1664a

1693

1694

161
Page Name SRM Page Name SRM

•J597 Sill Til T" I 1 invirlp in M

1

•'HI 1 Ul L/1DA1UC 111 INllIUgCIl 1 rn (t a n 1 6Q6 44 1 1 t * 1 n 1 1 1 m W 'ii'o All r~\ 1/ 1 I T n » 1 1 1 1 / /a *^ \

1 1 Lain uiri-Ddse /A.iK)y v^-'ridiioyeu^ OjU

61 OUIIUI L-/1UA1UC rerinediion 1 UDC 11 677 OZ / A A 44 1 it'iniii TYl t-i QCO All f\ \ 1 (\ I r"wi 1 1 /~\ 1 r Arl \

1 liaiuuiii-Dase /\noy ^unanoyeuj on i

I / f ^ rn til r\ i~l \ yz. cm luue ) A A 44 1 lidnium-Ddse A.noy ^unanoyeuj 03Z

61 OU11UI I^leJAlelC rtl IllCdllOIl 1 UUC 1 676 77/Z 1

I 1ILdlllUlll 1 o n 1 1 1 m Tl1.^/lUAlLlC invinp 11 J4D S4K

\J Clll I UUC

QQ77 11 V^l UI 1UCI1C iphp 711/^ Z 1 1

C

61\j 1 ouiiui l/iuaiuc rcruicaiiuri 1 UDC 11 67S 0ZD ^7 1 LJIIlttUJ LvCaVCS 11 ^71 J 1

J

M0 pm tllh<=»^ \ iyj cm i uuc) Z3 Tnnl St^^l ^AT^T M?^ 1

1 3ZD 17K

03 ouiiur in v_.uai 7687 Z08Z ^4 Tnr»l 1 UUl <stp^l OICC1 /'AT'sT IvlZ.) 1

1

1 S7 1 J / 6^ OUIIUI 111 v_Odl ZUOJ 7681 107 l^C\(~\l ^tf^P1 1 UU1 OICC1} r\Ul A hrflCl\/p aol VC \\/pQr VV ^lonrlQrri Cal 0 lal Itlul U 1108S73/

6^03 ouiiur in v_Oai 768/1 Z084 41 llaCCallvjy lCKd-DaSe 8Q7 07 / 6^03 Sulfur in Coal 768 ^ riigii- 1 eriipeidiure /\uoy ) Ol61 OUIIUI 1 1 1 1 1 1 r in !< i > t i / i i i i 1 1 • i i . > 1 fill III IxCblUUdl I^UCl \Jll 11 61 Q 0 1 7 43 Trappa 1 1 aLCallU 1 Inv f r'L' p»1 Racp y ^I'jlCI^.Cl 1 > tl >L 8Q8 o"0

6101 W 1 1 1 1 1 1 r m U >-w ~ i /-I nnl Lh i i 1 fill oUiiur in ixesiuuai ruei v_/ii 1 67Hrt lozua n.1^,11- 1 CIIipCI alUI C r\.ii\jy ) 6101 ouirur in rvcsiauai ruei 1 67 1 K 1 0Z 1 D 43 \~ r'ACf^'A 1 1 c\\i ^Mir'Vf^l Racp 8QQ 077

6101 Sulfur in Residual Fuel Oil 1 677K 1 OZZD r-Ticrri XpTTinpratiirp A llr^\7

1

1 1 1 Ls 1 1 - 1 CllipClalUIC r-\ll\jy ) 01 Sulfur in Residual Fuel Oil 1 67 "2^

1 Ozja 76 1

1 t*o

1 dCCr*o JL^iCIllCI W 1 pmpn1 tc

LJ> in111 d

o liLllajj Iqcc IVIdll nJt otn v1A 6 1 n O 1 VJ Ol it If iiT* i n D , if i /H |i a| 1—i i i . i 1 / 111 ouiiur in ixesiuuai ruei wii 1 67/1 r. 1 oz4a 76 Trapp 1 latt LIC1I 1 pmpntQ ICHLj i111n <X"a CWv_J la^3 c\ cc \AIVla.p tnL I 1 y

A

61Oil1

1 1

1

111 Sulriir T? nrirxAT" OUIIUI IVUUUC1 (~* V-/e»1 nmnnnnH 1 lpd Ul lei 171 CT J> / Ig 76 Trace X 1 UVk Flements 1- -/ 1 V— II IV, II U inIII aKA Olas^ VJ lUJO Tvfatrix 1T1U LI 1 / V 612

9? > n npr^an m 1 1 p 1 1 \ /

1

o UpCI IDIIUULIIVC11 1 n p1 rmt~\ mp^ t hp r^i v lllClIUvJIIlClIle JT 1 ACU /o /a 76 Trace A 1 Cl V- v Flements 1— J v 1 1 1 ^ I 1 I ^ inAll a1 1 Olass 1 CJ> \3 J Matrix ITlcll 1 1 s\ 613

i unit L/cvice 76 TrflfP 1 IfltL FL -

1ll_Pinptitc 1 1 1 L 1 1 I > in q r~il cc \/f -a t ri y 111 d \Jla33 IVldlllA 614

9?-7Z ouperconaucti vc i nermorneinc rixca 768 /00 76 lldCC 1 raPP r" 1 Ampntc in q (t Iqcc \A atn v £_V1CII1CI1Lo III d VjldSS> iVldtriA 61Ul JS

1 y / "» 1 T1 t~ I IOUIPO xUlIll -L/CVlee 76 *l^mcf* l awe j-^ici r'l/^mRntc nci i in "a r~ilQcc iV^QtriY is 111 a vjiais ividlllA 616 e> i u

1 1 s 1 1

J

ounace Fiamniauiiny oianuaru 1 nn7^ 1UUZC 76 lldCC 1 VA c lpmpntc in q i» Iqcc i\A atn v L-ICIIICIIIS 111 d vJlabS IVldiriA 617

Q4 Synthetic Sapphire 77n 1 rQfP Hompntc in 1^ Ail I I-) i r i i mi n i i r-

\

iidce nieinenis in v_-oai ^Diiurninousj i o jza

101 l^(*f* n ni^t 1

1

1 CCIl Jit 11 Hill" i m QQJ y i\ti 5ir\M~\cir'ti\7it\f tlLl K l 1 \ 1 l \ OlCUlvldl vtQnHiirHu 4.788 62 Trace FlpmpntQ in (^oal f^nh 1615

Technetium-99m Radioactivity /i /i 1 ni-i t 44 1UM-1 hitn mi n i c Ul lUIIHIlUUo oianuaru 67OZ 1 rQPP h lpmAntc in i nfil LV 1 1 / A c- n 1 1 dec cicincnis in v_-Oai Jriy /\sn 1 0 J Jd

59 i cu aciiioi oeuiy leiic in lNiirogen 1 ans 1 0U0 OZ iidcc 1 ra pp ti 1 ptripn tc in T^i ipI 1 Eiviciiiciiia in ruci KJll 1l 614q rjjTd

106 1 V/VJ I llalllUHl-ZVJ 1 JVaUlUaCllvliy olallUalU 6"? uz Trapp l late Litniciiis rlpmpntc in W/otpr ill vv dlel 1 641a

94 1 I1CI Illal IVCMSlallCe, JTlUlOUS vJlaSS 114j4^ 11 6101 lldCC 1 rapp IVlCICUiy Iv/i prp 1 1 r\/ in i* t~\ o 1 111 v^Udl 1I 610 OjU

Ddll Qfl 7V7,73 01 QQ

,

77 £,z, i

iT' 1 1 iiiicuiyipcuidiic 1.1 11 In/ C 94 1 np rm ^ 1 R pcicttinpp r-< i nrnuc (il q c c 1 11C1 Illa.1 JT\.C?>lc>Ld.llCC, I 1U1 UUS v_Jld.aj 1 4.snh si Tni i ipaiii r\a 1 mui tiinn

i

1i jy5QSj

Board J J 1 1 Is, DdSlIIlClI 1C 11 1q

103 1 I1CI 1UII1-Z.Z0, 1 IlalllUIIl-ZrUo vJalllllla-rdy 4ZU0L 937J iiis, 1 -pi c ipr iui ocuuiiLni Vk/"\l|itir~\Ti i'q 1 r\ri motru v-^aiui mien y 7?4q / Ztd

r oinr-oource oianaara i ris^nyciruxymcinyi ^aminomeinane

44 1 HrlJaiL i_/Cal lllg IVXCLdl i iioyiijrLiie/Aj/iiieiiiyi Qi nvnrPiY vmptn \/l \^aiiiiiivjiiicuidiie 'A minnmptnQnp 071 7 &.J 9?7Z 1111, rlCC/.lilg rOllll 7/1 1 /41 iiyurociiiorieic

1 fl6 1U0 1 1 n 1 1 i 1 n ill r"*"\ 111 m D o /i i /~v nnfn nfi r i in - 1 1 j-inuium- 1 1 jiti ivauioactivity /1/1H7T u /

1 T*1 1 1 T~\ n Zi r\ I 7 1 1 * r> tit a »a i—» • v \ i ^ls^ i-pnenyi- 1 , 3-Duianeaiono^ 11 H78K U / OD

old.llUd.1 NtonnirnCI

1 nrAmnim ( TTT\ V^lll vjiniuiii ^111^ 104 11U-1Z.1111 JT kjuil-OVJUl LC VjcllllIIld.-l ay 4.764R »j / i iis\ i-piicuyi - 1, j-uuidiiceliuiiu

/

107Qh 1U; 7U

J_^llmKQinn.R 11 331U1 1'lVaLC 'At OlczilUdi ^tiinHQ rHLI 07 i in, occuiiuaiy mcczuig jruini 4Zg 47 rr 67 iiipnciiyi riiospndie 11 D7W /

11 Ko

* 1 1 1 1 1 *. 1 ->. i ii 74 l

1 nnO"vtpn uiit,sicii i^QrhiH^ v^ai uieic ?76a

SO Titanium A llr\\/ i iicuiiuiu / v 1

1

y

6S4a 23 1 i in octpn n rf~\m 1 1 1 m \/ Qnanui m \tpp| i uiig,3icii-v_ni vjiiiiuin- v diiduiuin oicei

44 T^itanmm Rqcp A11o\/' 1 1 l ii 1 1 1 U 1 1 1 I Jtl>L /y 1 1 vJ y

11 71h / 3D 71 1

1 1UIl^SlCU 1 n fitt An v_^L)IleCIHI Anrpntratp dLC z777/ / 44 Titjiniiim-Fla^p i i leu 1 1 ui 1 1 L/asc rviiuy A llnv 11 76/ u 94 Xiinottpfi T-fAQt r\in"*i t \/ 1 UUL;MLll, I leal V_dUdCliy 78?

54 I nn <tc tpn 7(1% \4pili7nnpniim A ll/^\r i uii^»icu-z,vj /c iviuiy uuciiuiii /\nuy

ciceiiou P Ipptrnn nJl i c rnnrnnp Nt^nHa t*ri iviiei upi cue oidiieidiei QS 1

1 1LlllUMUl in crctAn 11 IlClIIldl nprm q 1 XLAUdllblel Ynancinn11 717

jy T Tn q 1 1 rw/AiH f"\ r\ r% ar ej iidiiwy cei euL/uci 1034

41Hi Tejiiaiivjyeei In fA 1 li^\/Arl Pnnnpr v_/eiupci , f^n v_- u \j J/J 393

4840 WtxckWcwi \J lldlic f*c\ nnnpr l^n T\/ y Cel v_elUUel , v_ U I V 4S7

41^ 1 T\jTnuaiieiy ill lovaH Pnnnpr l^ii \TT cei euuuci, v_^u yvi tjt 454

41*Tl TTnallovcH C^ctv\TiFi T C^w T ffViiril 394

41 Unalloyed Copper, Cu II (Chip) 395

41 Unalloyed Copper, Cu III (Chip) 396

41 Unalloyed Copper, Cu V (Chip) 398

41 Unalloyed Copper, Cu VI (Chip) 399

41 Unalloyed Copper, Cu VII (Chip) 400

48 Unalloyed Copper, Cu I (Rod) 494

162
Page Name SRM

4840 TTnallovpd fnnnpr Oi IT (Rodl 495

AQ40 TTnallovpd U lldl IC* V CLl fnnnpr vllUUCI , Pnv_ U FTT 111 fRnrll ^ IVUU / 496

Tlnalloved U llallUy CU Connpr vUUUCl , CuV_ Li Vv iRnd^ lixcjli /. 498

AQ40 TUndllUycU Tnallovpd Cormpr V^UppcI , di VTVI ^RnHI ^iveJUy 499

4840 TTnallovpd uridiioycu C^r\r\r\f>r i^oppei, Cii VTT vn ^RnH^ ^rvuuj 500

<; 1 J 1 T TnQllo\/prt 1 1 t a n 1 1 1

m

L IIJIU M IU 1 lldlUUlll 354

78/ 0 UrdlllUIII IbLHUpic OlallUalU ^ l>IUIIllIlaliy U-0002

Hpnlpted UCU1CICU toI vj 0\J.\Jt* (Y)<fa\ /O ) 78/ 0 UldlllUIIl IsUlUpiC oldllUdlU U-005a

78/ 0 UldlllUIIl locHUpic OlallUalU U-010

^i>jorniiidiiy i /c j_,iiriciicu/

78/ 0

I IrQtiiiiTn TcotoTMr' NtQnn^irn y IclillllII! loLHUpic OlallUalU U-015

^l>JUllllllaliy l.J/0 CI1I lLIICU^ 78/ 0

T Ironin m Icntr>nip >ktan/Harri UlalllUIIl lbUKJpie OlallUdlU U-020

78/ 0

I 1 ro n 1 1 1 nr\ T c P^ t P\ T~\ 1 p* xtQtinQTTl UrdniUIIl lacHOpic oldHUalU U-030a

78 IuIrciniiim i allium Tcntnnir locucjpic oStandard lauuai u U-050

^INOIIllIlaliy J /C I_*I1I ICIICU^ 78/ o

IUlalllUIIl 1 raniiim 1MJLUU1C 1 tntnnip OlallUalU S^ t q n /-i a ro U-100

^lNUIIUIldliy i\J /C J-/11I 1C11CUJ 78/ o

TUlalllUIIl Iraninm IcntAnir IjUIUUIL Standard o laiiUai u U-150

^iNUiriiiiaiiy i j /c miii lcncu'. 78/O TTraniiim UlalllUIIl Tcntnnip loO IC> U1C Standard Jlallual U U-200

/ r\Jr\m i n a 1 1 \/ Pnrioni^d^ ^ 1> CHIllIldll y LVJ /0 J-/I1I 1C I1CU ; 7C/O TUrdniUIIl Ironiiim ISOlUpiC lent aiai^ oldllUdlU xtonnorn U-350

^l>iOIIllIlaliy JJ/0 IZ-IIIICIICU/ 78/O TUlalllUIIl Tt*Qtiiii m Tcr\tr\nip IsUlupiC Vt^nnQrH OlallUalU U-500

^i^uiiiiiiaiiy j\j /c cui iciicu^ 78/ O

TUlalllUIIl Iranium Ic^^t^^rM^ lo^Jiwpn-, Stann Jiaiiuaiarnu U-750

/Mnmi ^i>LJiiiinaiiy tiq11\; 7S ^7^. Fn t"i r^Vi pH ^ i j /c i^niiv^ ntu / 78/ o IJranium V—^ X <.i 111 ULLl T^otonic X I v } YJ 1 Standard \ } Lai i v J u1 V-i U-800

(Nnminallv 80% Fnrirhed 1! 78/ o Tlranium Isotnnip StanHard U-850

^Nominallv ^ i ^ uuiuiai SS*-^ FnripVipd^

i

y o -> /v i^iii il,iicu/ 78/ o Ilrfiniiim \~J i allium Tsotnnip iouiuuil Standard ijiaiiuai u U-900

^l^iUIIllllaliy y\J /C Ull 1V-1 1CU J 78/O IUlalllUIIl ronium IjUlopiL FcAtAr\ip OlallUalU xtonnQrH 1U1 vJu 930

V i^j uiiiniaiiy y j /o j_.ni lciicu^ 78 Tlranmm u i allium T*iotnnip i tun 'i nl Standard oiauuui u U-970

(Nnminallv i x^tv/iiiiiicixi y Q7^ j' /o Pnriphed^ i—ii 1 1 ii mi u f 55 78 TTraninm v. ' i aniuiii TVfptal ivjv. hti 960

J55J , 78/ O I Tra n

i

i

i

m \ id

p

u i allium \..s aiul 950b

78/ O TTranmm \_1 1 aniuiii Oxidp wAiut 969

/ o

T TrQtiiii m 9 s ^ vnil-p A ccq\/ Qnrl uiaiiiuiii"/,j j opiKC Avsbay aiiu 995

lotj Icot^^^M^, ^oliitiP\n >tQn/iQrn

i

li pn_ ouiuinjii oiauuaiu

I Irani 1 1 m / s S \ni L' < U

> A ccq\/ qtiH I alllUIIl-Z J J opiKC /A.Doay allU loDlUpiC oUlUUUIl OlallUalU

o4 UI Uall LJ Ubl/ Ul g,aIllCo 1 UT7

OZ UiDall X^al UCUlalC IVlallcI 11 MRuto

JO Urea. y i z,a JO Urea Z.7141 1 *T 1 JO Urea 1 1 5? JO U 1 1L. /-VC1U 91y i j3

61 Vanadium v aiiavjiuui and aiivi NipIcpI i i n. i\v i in111 Rpsidual i\^oiuuui 1618

Fuel Oil

62,79 Vanadium in Curde Oil 8505

104 Vanadium-49 Low-Energy Photon 4266

Standard

42 Waspaloy 349

68 Wear-Metals in Lubricating Oil 1084

(100 ppm)

Page Name SRM

fi8 oo W cal -IVlClalb 111 UUDIlCallllg VJH l Uoj

M00 ^JL/L* nnm^ Upiliy

^7 WfVV UCdL rl f*Cl t 1 OUT* 1 HUH 1 SA7

JU White T¥ IIIIU Cast Uot Trnn 11L7I1 J338JO

18JO WViitp Cact Tmn I^T

>)icr-, vv mic v^aai null i ^j_-/i*>l^^ 1 14S

38 White t 1111V. Cast v- . j I Tron 11 V/ll ('Disr'i y 1 ' 1 j^- f 1 146

JO38 W/hitp Pact Trr^n ll

r Willie v^aM 1IUI1 ~\icr''\ ^l^lJiC^ 1 1 JU

Q8 W^h vv iniL l tp Ppr^mir l-ci amiL. T^i 1 lie1 p fnr T~^i rpr*ti r^n q 1

i ui i—/n cl ULJiiai 201 •L.\J 1 9h7U

ncilllbpilcl leal IVcl ICClallec 98 White t t 1 1 1 l v. Ceramir *> - uiiiiw Tile i iic for i v ' i jOirpptional ' 1 1 v. v. i i \ • 1 1 a1 2020

r-TpmiCTth prir*Q 1 T? /:if|/ii/-^t 'A ti r" i lcmiopiici iLai ivci ice laiiec JO36 WIw mic riit"^ Tri^xn ii e>n JU

08 vv mic wpdll vjldab L/lllUc>e opceirdl 901 S R pflpptQiiPP AtdnnQrH tr\r tr\f* rvci ice idiicc oidiiudiu lui uic

v imuic opceii UII1

yVCllUIl- 1 L 1 UdscUUb iVdUKJaellVliy 4^oqp;

Stand O laiiUaia rdU

103 1 L/

J

AC1IUI1 X pnnn 11 Js Js (tucpai UdcitULljiq JAaUlUaLU R iiplin^pti\/it\/ Vll y 4307T

O Idl lUdl u

103 1 L/ J , 1106v/U A.tnuii" APnf^ri-1i jStj iiacpniK eiascuus ixauicae R Qdir^i4r*ti\/it\* ii v i ly 441 5T I Stands O laiiUairdU

1 UJ yvciie'ii-iJJ, Ypnnn 1^3 Ypnnn yveiioii-ij/, 137 K"runtnn ivi ypie)ii-oJ 43tJl10R L/ IJ iviiAcu udbcuus ivduiodeiiviiy e t on H o rp olallUdlU

1 1 j -/v- 1 ay i ii in oicp i auici 1001

107 AjC .f/i 1 CXyv Pnu/npr 1 UWUCI iii '! 1 FMt ra1 ttLr* t1 ir\n \\ • 1 i Tntpncit\/ iiiiciioiiy 674

oldllUal U

11 07U / A-idy ruwUci LJll 1 Ide ll(Jll ^IVlled^ A7S o / J LjU T riww 9— Thpta i iicia 10A I llel UlUIll- 1 0" IxdUlUdellVliy OlallUalU 441QT tt 1 y L^-DR

H-J z_-ine-Dd»c /-viiuy ^-L/ic \^-dbim^^ Q4p

7 1

/ 1 /-i nc \— oiieciiiidics 1i

1i Jd3a

71 z_ 1

1

il euiiLcnu a i Co Jt7 379

fnKJ 1 *7inej i *— Cvplnhexanpriiitvrate v y l lunt Auiicuui y I aic 1073b

/7inp - 1 1 1L i T-^rpp7in 1 1 CCLlllc,<y Point 1 LJ 1 1 1

1

740

92 7t \v\c i 1 v. . Free7inp i \ k. k. t i \ i u. Point i wuiL kjiaiiuai Standardvj 43h

52 7\wc \4etal 683

1 1

1

7inp / MIL (ividp V-/AIUC Riihhpr IXUUUCl I*e^L'omnniinn 1 1 1 JJC U 1 1U 370e

45 ^7. i11rr*a LalU1 o\/-9 V Z 360a

J 1 7irr*alov.4i \/f ptiil 1 1 eaicy " iviciai 1237

s 1 J 1 7irr-Qlo\/ 4 \/TptQl z_/ii eaicy -*+ ivic lai 1238

Jsi1 t—j 7\ycc\\c\\! 1 1 Laiuy -"t -A. \Aivicptal lai 1239

93 7irenmiim-Raruim » j 1 1 V-WlllUlll MJCXl 1 U 1 1 1 Chr V—- 111 ornate KJ 1 1 1C1 1 V- 1651

Pnrm i euiiiuiaiiou illation for ieu T-Tpat iicai-ouuiec Sonrpp

Po\A/dpr r L/ wuci Palnnmptru eaiui imcii y 93 Z~<11 / irponinm LU1I1U11I Rurinm JJal 1UII1 i

1nrnmiitp 1 1 Wll laic 1652

Porm i cumulation i i 1 q ti on tor hji 1-Tpat iicai-ocuiec Sonrop

Ppi\i/npr ruwuci eaiui q 1 o t"inmncf^t r\/ 1 1 y 93 7irpAniiim iiee, iiiuui-ijdi Riirinm luin Pnrnmatp eiiiuuiaic 1653

Formulation for Heat-Source

Powder Calorimetry

51 Zirconium Metal 1234

51 Zirconium Metal 1235

51 Zirconium Metal 1236

163

Numerical Index to Standard Reference

Material Certificates

The Certificate date listed is the current version of the Certificate. Those dates followed by the letter "P"

indicate that it is a Provisional Certificate. In general, Provisional Certificates are issued for Standard Reference Materials before all of the values

have been certified, but after a sufficient number of values are certified so that the material is a valuable

standard for the intended purpose. As additional values are certified, the Provisional Certificate may be

revised and when and if all of the value are certified, the final Certificate is issued.

SRM purchasers whose Certificate shows an earlier date then listed below may obtain the current

version of the Certificate from the Office of Standard Reference Materials, Room B311, Chemistry Building,

National Bureau of Standards, Washington, DC 20234.

One or more of the following letters apply to materials where no date is listed.

A. Individually Certified.

B. The materials is issued with "Instructions for Use" in lieu of a Certificate.

C. This material is not certified; refer to page reference for details.

D. Material is in preparation.

E. Research Material: Issued with a "Report of Investigation."

F. Special Reference Material: Information provided, but not certified by NBS.

G. Set of SRM's: Issued with Certificates for the individual SRM's.

H. Not individually issued; part of a set.

Page SRM Certificate Date Page SRM Certificate Date

72 lc 12-14-78 92 42g 7-18-72

36 3d 4-2-79 92 43h 8-15-73

36 4k 5-27-76 92 44f 4-5-73

36 5L 11-9-70 92 45d 12-6-71 36 6g 11-9-70 92 49e 12-6-71 36 7G 10-5-59 23 50c 6-25-57

19 8j 4-10-72 42 53e 1-20-70

19 llh 4-30-74 44 54D 9-20-57

19 12H 3-7-66 35 57a 12-30-80

19 13g 4-30-74 35 58a 4-25-78

19 14f 2-24-81 35 59a 11-6-69

19 15g 4-30-74 35 64c 8-24-77

19 16f 3-9-83 35 68c 8-15-79

55,100 17c 4-1-81 70 69b 8-24-79

19 19G 9-30-64 72 70a 10-10-81

19 20g 10-23-70 35 71 2-1-29

71 25d D 20 72g 6-4-81 70 27f 5-31-77 22 73c 7-13-66

20 30f 6-5-79 72 76a 4-5-77

20 32E 4-5-57 72 77a 4-5-77 20 33d 6-10-55 72 78a 4-5-77 20 36b 7-18-69 69 79a 1-8-80 39 37E 8-28-58 72 81a 1-78 93 39i 7-15-68

55 40h 5-4-82 55,100 41b 4-10-75

SRM 475 is specifically designed for the measurement of opaque and clear lines on

integrated-circuit photomasks in transmitted

illumination. 165
Page SRM Certificate Date

36 82b 4-12-66

55 83d 3-1-82 55 84j 10-11-78

39 85B 5-9-57 39 87a 10-10-81 72 88a 7-22-82

74 89 8-27-32

35 90 10-1-28

74 91 10-28-82

74 92 3-11-82

74 93a 8-31-73

45 94c 8-15-73

72 97a 10-8-69

72 98a 10-8-69 72 99a 10-10-81 20 100B 8-18-59

23 lOlf 5-19-70

73 103a 9-28-62

20 105 10-10-81 20 106B 3-24-61

36 107C 5-16-83

71 113a 12-29-75

113 114n 2-26-82

36 115A 4-19-62

68,71 120b 7-31-79

22 121d 8-31-81 36 122h 4-28-83

22 123c 10-1-81 20 125b 2-24-82

22 126c 12-30-77

42 127b 10-1-81 20 129c 8-7-73 20 131c 6-2-77 23 132b 8-16-73

22 133B 8-12-81 23 134A 5-6-57 55 136d 8-1-81 20 139b 5-17-78

55 140b

D

55 141c 9-27-76

55 142 7-9-69 55 143c 9-27-76

55 148 12-22-70

19 152A 10-11-65

23 153A 1-5-60 72 154b 5-16-73

20 155 10-1-46

39 158A 8-8-61 22 160b 8-31-81 23 163 1-11-68

72 165a 10-16-78

22 166c 3-17-70

Page SRM Certificate I 42 171 11-27-51 44 173b D

44 176 10-1-81 19 178 7-14-69

20 179 7-15-76

69 180 3-31-71 69 181 10-1-81 69 182 10-1-81 69 183 10-1-81 83 185e 5-23-73

83 1861c 9-1-70

83 18611c 9-1-70

83 187b 9-9-70

83 188 1-10-64

83 189 1-10-64

83 191a 5-11-83

83 192a 5-11-83

68 193 11-14-74

68 194 1-8-74 35 195 4-25-78

35 196 11-9-70

73 198 1-6-60 73 199 1-6-60 68 200 8-7-74 99 211c D

90,93,99 217c

D

74 276a 5-30-80

71 277 1-24-78

72 278 8-19-81 20 291 10-1-75 20 293 3-27-75

71 329 12-29-75

69 330 1-20-77 69 331 1-20-77 69 332 6-26-77

69 333 1-20-77 36 334 3-20-82

19 335 4-7-66

19 337 8-16-66

36 338 6-24-82

22 339 7-21-65

35 340 11-9-70

36 341 3-26-62

36 342a 4-27-70

22 344 10-2-63 22 345 1-23-64

22 348 10-1-81 42 349 9-2-81 55 350a 4-27-81

51 352b 8-22-83

51 354

D

51 355 9-8-66

51 357 6-16-80

51 358 6-16-80

45 360a 1-30-67

20 361 2-24-81

20 362 2-24-81

20 363 2-24-81

20 364 2-24-81

36 365 2-24-81

22 367 7-21-77

166
Page SKM Certificate Date Page SKM Certificate Date

19 368 1-1-78 53 478 2-28-74

111 370e

C 53 479a 11-1-80 111 371g C 54 480 11-22-68

111 372h

c 54 481 2-14-69

111 373f

c 54 482 6-6-69

111 375g

c 54 483 6-11-71 111 378b c 84 484c D

111 382a

c 106 485a 10-9-81 111 383a c 106 486 3-6-81 111 384d c 106 487 5-14-82

111 386h 3-10-75 106 488 10-6-83

111 388L 12-3-82 106 493 8-28-70

41 393 9-16-80 48 494 1-20-78 41 394 7-4-76 48 495 1-20-78 41 395 7-4-76 48 496 1-20-78 41 396 7-4-76 48 498 1-20-78 41 398 1-23-78 48 499 1-20-78 41 399 1-23-78 48 500 1-20-78 41 400 1-23-78 76 607 5-21-73

25 404a 5-5-65 76 610 1-4-82 25 405a 5-5-65 76 611 1-4-82 25 407a 5-5-65 76 612 1-4-82 25 408a 5-5-65 76 613 1-4-82 25 409b 5-5-65 76 614 1-4-82 25 413 5-5-65 76 615 1-4-82 25 414 5-5-65 76 616 1-4-82 25 417a 5-5-65 76 617 1-4-82 25 418a 5-5-65 74 620 1-13-82 25 420a 5-5-65 74 621 1-21-82 25 427 5-5-65 87 622 3-19-76

34 436 9-22-59 87 623 3-19-76

34 437 9-22-59 88,109 624 10-25-77

34 438 9-22-59 50 625 4-24-64

34 439 9-22-59 50 626 4-24-64

34 440 9-22-59 50 627 4-24-64

34 441 9-22-59 50 628 4-24-64

30 442 10-25-65 50 629 4-24-64

30 443 10-25-65 50 630 4-24-64

30 444 10-25-65 50 631 11-9-81 31 445 1-19-66 75 633 2-24-77

31 446 1-19-66 75 634 2-24-77

31 447 1-19-66 75 635 2-24-77

31 448 1-19-66 75 636 2-24-77

31 449 1-19-66 75 637 2-24-77

31 450 1-19-66 75 638 2-24-77

41 454 9-16-80 75 639 2-24-77

48 457 1-20-78 107 640a 2-19-82

26 461 8-1-81 50 641 10-15-81

26 462 8-1-81 50 642 10-15-81 26 464 8-1-81 50 643 10-15-81 26 465 8-1-81 50 644 8-1-79 26 466 8-1-81 50 645 8-1-79 26 467 8-1-81 50 646 8-1-79 26 468 8-1-81 44 650 D

53 470 10-30-81 85 474 8-27-81 85 475 4-21-81

85 476

D

107 477 2-23-83
Page SRM Certificate Date Page SRM Certificate Date

44 651 D 92 741 7-18-72

44 652 D 93 742 6-5-70 50 654a 10-15-81 92 743 4-22-76

26 S668 G 94 745 5-14-69

71 670 D 94 746 8-11-70

43 671 6-29-79 94 748 8-10-70

43 672 6-29-79 95 763 4-5-73 43 673 6-29-79 95 764 4-5-73 107 674 6-1-83 95 765 4-5-73 107 675 6-18-82 95 766 4-5-73 52 680L1A 3-1-77 92 767a 6-9-83 52 680L2A 3-1-77 92 768 12-13-78

52 .68 1 L

1

3-1-77 52,109 769 11-15-82

52 681L2 3-1-77 95 772 10-18-78

52 682 2-1-77 89 773 11-24-80

52 683 10-1-81 88 774 7-19-82

52 685 10-1-81 94 781 4-1-77 72 688 8-18-81 94 782 D

35 689 2-24-82 25 803a 5-5-65 70 690 10-24-78 25 D803a 5-5-65 70 691 4-12-82 25 804a 5-5-65 70 692 10-24-78 25 805a 5-5-65 70 693 10-24-78 25 807a 5-5-65 70 696 8-24-79 25 D807a 5-5-65

71 697 8-24-79 25 808a 5-5-65

71 698 8-24-79 25 809b 5-5-65 71 699 8-12-81 25 817b 5-5-65 114 700d B 25 820a 5-5-65 114 701d 1-15-77 25 821 5-5-65 114 703 11-1-66 25 827 5-5-65 90,94 705 11-28-78 34 837 9-22-59

90 706 2-19-79 34 D837 9-22-59

89 708 9-15-73 34 840 9-22-59

88,89 709 6-5-74 34 D840 9-22-59

88 710 6-29-62 34 D841 9-22-59

88 711 7-1-64 31 849 1-19-66

88 712 10-19-66 31 D849 1-19-66

88 713 10-19-66 31 850 1-19-66

88 714 10-19-66 31 D850 1-19-66

88 715 9-7-66 39 855 1-8-80 88 716 . 9-7-66 39 856 1-8-80 88 717 11-18-69 39 858 6-6-80

89 718 4-28-72 39 859 6-6-80

94 720 4-13-82 42 864 D

55 723a 4-20-81 42 865 D

93 724a 9-24-73 42 866 D

44 726 1-31-67 42 867 D

45 728 10-1-81 39 871 8-2-79 95 731 7-31-72 39 872 8-2-79 95 733 12-30-71 39 874 1-19-78 95 736a D 39 875 1-19-78 95 737 5-19-76 39 879 6-20-79

95 738 D 39 880 6-20-79

95 739 5-12-71 42 882 8-3-79 92 740 2-19-70 36 890 4-1-82 36 891 4-1-82 36 892 4-1-82 43 897 8-31-83

43 898 8-31-83

43 899 8-31-83

56 900 4-5-79 56 909 7-13-83

56 910 5-15-81 56 911a 3-5-80

168
Page SRM Certificate Date

56 912a 11-16-79

56 913 11-23-73

56 914 11-23-73

56 915 11-21-73

56 916 3-10-71 56 917 9-20-73

56 918 11-23-73

56 919 11-23-73

56 920 11-23-73

56 921 12-16-73

56,83 922 8-20-76

56,83 923 8-20-76

56 924 11-23-73

56 925 12-26-73

56 926 7-18-77

56 927 12-31-79

56 928 5-19-76

56 929 4-27-79

56,96 930D

A

56,96 931c 2-12-82

57,96 932

A

57 934

A

57,96 935 6-1-77 57,96 936 4-1-79 57 937 6-9-78 57 938 5-15-81 77 945 4-6-71 77 946 8-19-82

77 947 8-19-82

77 948 8-19-82

55,77 949f 9-13-82

55,78 950b 3-1-78 55,80 951 10-12-71 80 952 10-12-71 79 953 3-12-69

55,78 960 5-12-72

80 961 6-11-74

80 962a

D

80 963a

D

80 964 6-11-74

78 969

D

80 975 3-11-65

80 976 3-25-65

80 977 3-25-65

80 978 3-24-65

80 979 5-3-66 80 980 1-31-67 80 981 4-10-73

80 982 4-10-73

80 983 4-10-73

55,80 985 8-31-79

55,80 987 10-1-82 80 989 2-19-74

80 990 8-75 80 991 3-19-76

78 993 6-30-75

78 995 8-25-80

77 996 6-10-81

57 998 1-11-83 55 999 9-6-72 115 1001 A

115 1002c 12-13-78

113 1003a

D

Page SRM Certificate Date

113 1004 4-3-72 115 1006b 4-29-83

115 1007a 2-27-76

115 1008

A

115 1010a 6-21-82

113 1017a 9-24-71 113 1018a 5-16-73

113 1019a

D

39 1034 2-3-82 39 1035 2-3-82 20 1036 9-1-82 67 1051b 7-15-68

67 1052b 3-1-68 67 1053a 1-23-70

67 1055b 7-23-68

67 1057b 7-5-68 67 1059c D

67 1061c 10-1-81 67 1062b 4-12-76

67 1065b 11-1-67 67 1066a 4-23-69

67 1069b 2-13-69

67 1070a 4-24-64

67 1071b 2-26-76

67 1073b 7-15-67

67 1074a 5-13-66

67 1075a 10-25-67

67 1076

D

67 1077a 2-10-68

67 1078b 7-25-72

67 1079b 2-26-69

67 1080a 2-26-69

68 1083

D

68 1084 8-2-82 68 1085 8-2-82

51 1086 6-16-80

51 1087 6-16-80

51 1088 6-16-80

51 1089

G

51 1090 4-2-69

51 1091 4-2-69

51 1092 4-4-69

51 1093 3-4-69P

51 1094 6-12-69P

46 1102 11-9-81 46 1103 8-13-65

46 CI 104 8-13-65

46 1106 11-23-81 46 CI 106 11-23-81 46 1 107 11-23-81 46 CI 107 11-23-81 46 1108 11-23-81 46 C1108 11-23-81 46 1109 12-11-81 46 C1109 10-1-81 46 1110 10-1-81 46 C1110 10-1-81 46 1111 10-1-81

169
Page CRM

v trill It dlt UdlC

r age SRM f\ Vrt 11 Mlifirnf Kdllf* Dntp

46 Cllll 10-1-81 33 SI 199

H

46 1112 10-1-81 33 1206-2 8-1-81 46 CI 1 12 10-1-81 33 1207-1 8-1-81 46 1113 10-1-81 33 1207-2 8-1-81 46 CI 1 13 10-1-81 33 1208-1 8-1-81 46 1114 10-1-81 33 1208-2 8-1-81 46 CI 1 14 10-1-81 26 C1221 1-20-82

46 1115 11-23-81 26 1222 10-3-78

46 CI 1 15 11-23-81 26 1224 2-24-81

46 1116 11-23-81 26 1225 3-16-83

46 CI 1 16 11-23-81 26 1226 12-14-82

46 1117 11-23-81 26 1227 3-30-83

46 CI 1 17 11-23-81 26 1228 9-28-82

46 1118 12-11-81 51 1234 11-28-80

46 CI 1 18 7-12-82 51 1235 11-28-80

46 1119 12-11-81 51 1236 11-28-80

46 CI 1 19 7-12-82 51 1237 11-28-80

46 1122 12-11-81 51 1238 11-28-80

46 CI 122 12-11-81 51 1239 11-28-80

46 CI 123 12-11-81 33 1244

D

49 1131 10-1-81 33 1245

D

49 1132 1-30-70 33 1246

D

26 1134 4-30-70 33 1247

D

26 1135 7-27-72 48 C1251 9-16-80

26 1136 8-31-73 48 C1252 9-16-80

38 1138a 1-20-77

AO 48 C1253 9-16-80

38 1139a 1-20-77 26 1254 4-1-82 38 1 143a 12-1-76 45 1258 5-3-78 38 1144a 12-1-76 45 1259 5-3-78 38 1145 5-16-78 26 1261a 2-24-81

38 1146 5-16-78 26 1262a 2-24-81

38 1150 5-16-78 26 1263a 2-24-81

31 CI 151 1-31-80 26 1264a 2-24-81

31 1151a

D 26 1265a 2-24-81

31 CI 152 1-31-80 31 1267 1-19-76

31 1152a

D 26 1269 6-11-81

31 CI 153 1-31-80 26 1270 6-11-81

31 1153a

D 46 1275 3-10-80

31 C1154 1-31-80 46 1276 3-10-80

31 1154a

D 26 C1285 6-8-82

31 1155 8-4-69 26 1286 6-8-82 32 1156 8-26-81 31 C1287 6-11-81

34 1157 8-6-73 31 C1288 8-1-81 32 1158 12-30-77 31 CI 289 6-11-81

49 1159 8-4-81 86 1359

A

49 1160 8-4-81 86 1360

A

26 1166 8-1-81 85 1361b

A

26 1169b 4-15-82 85 1362a

A

31 1170b 1-30-74 86 1363a

A

31 1171 7-7-71 86 1364a

A

31 1172 7-7-71 86 1365a

A

38 1173 5-16-83 86 1366a

A

38 CI 173 2-24-81 87 1367a

A

33 1197 8-17-74 87 1379

A

33 SI 198

H 87 1380

A

87 1398a

A

87 1399b

A

94 1450b 5-21-82

94 1451D

94,108 1460 1-17-79 94,108 1461 1-17-79 94,108 1462 1-17-79 94,108 1463 1-17-79 94,108 1464 1-17-79

170
Page SRM Certificate Date

94,108 1465 1-17-79 94,108 1466 1-17-79 94,108 1467 1-17-79 94,108 1468 1-17-79 108 1470 2-23-82

90,94 1475 12-8-78 90 1476 11-6-69 90 1478 1-17-79 90 1479 3-27-81 90 1482 10-18-76

90 1483 3-9-76 90 1484 10-18-76

91 1490 2-21-77

111 1495 3-13-81 108 1521 A

108 1522

A

108 1523

A

106 1541 10-1-81 57 1549 D

57 1566 12-12-79

57 1567 1-3-78 57 1568 1-3-78 57 1569 9-7-76 57 1572 12-20-82

57 1573 10-18-76

57 1575 10-18-76

57 1577a 6-15-82

61 1579 1-23-73 64 1580 11-24-80

65 1581 6-25-82

64 1582

D

57 1590 12-11-80

57 1595 7-6-83 57 1599 8-2-82 112 1600 A

61 1618

D

61 1619 12-22-81

61 1620a 12-22-81

61 1621a 12-22-81

61 1622b 12-22-81

61 1623a 12-22-81

61 1624a 12-22-81

61 1625A

61 1626A

61 1627

A

61 1629a

A

61 1630 8-1-79 62 1632a 10-24-83

62 1633a 4-18-79

62 1634a 2-19-82

62 1635 8-22-79

62 1636a 2-5-80 62 1637a 2-5-80 62 1638a 2-5-80 64 1639 4-20-83

62 1641b 4-13-83

62 1642b 7-15-82

62 1643a 7-19-82

64 1644 4-27-81 62 1645 5-5-82 62 1646 6-7-82 64 1647 12-7-81 62 1648 5-11-82

64 1649 4-8-82

Page SRM Certificate

E

93 1651 11-12-68

93 1652 11-12-68

93 1653 11-12-68

93 1654 4-7-71 93 1655 3-20-81 59 1658a A

59 1659a

A

59 1660a

A

59 1661a

A

59 1662a

A

59 1663a

A

59 1664a

A

59 1665b

A

59 1666b

A

59 1667b

A

59 1668b

A

59 1669b

A

59 1670 12-9-82 59 1671 12-9-82 59 1672 12-9-82 59 1674b A

59 1675b

A

59 1677c

A

59 1678c

A

59 1679c

A

59 1680b

A

59 1781b

A

59 1683b

A

59 1684b

A

59 1685b

A

59 1686b

A

59 1687b

A

59,113 1690 12-22-82

59,113 1691

D

59 1693 3-20-82

59 1694 3-20-82

59 1696 3-20-82

59 1805 12-27-82

59 1806 12-27-82

59 1808 6-13-83

116 1810 5-5-72 108 1815a D

108 1816a

D

106 1817 5-10-83

99 1820 9-30-74

99 1822D

99 1823 12-9-76 90 1825 D

90 1826

D

90 1827

D

74 1830 7-18-82

74 1831 7-18-82

90 1840 5-14-82

90 1841 5-14-82

109 1850 12-10-80

107 1857 3-8-83 109 1860 8-2-82
Pace SRM Certificate

D

109 1 8ol

Q 7 Q7 8-Z-OZ 109 1 Q£7 1 8oz Q 7 Q7 8-Z-0Z 109 1 Qfi7 1 863 0 7 07 8-Z-8Z 53 107 1 18/1 D

53 18 /z 1J 53 1 8 15 1 ^

53 1 07/1 18/4

U

53 1 Q7C 1 0 / J

u

fi7 0'. 1 87fi 1 o /O fi

Q 81

00 11 o878/ o 1 1-1-81

/J 11 880 OOU

n1 j / J 11 881 OO 1 1U / 1 890 5-16-83

8Q07 1 894 LJ SQ 1 89S D

ITT l lz 1 Q01 3-1-/0 £ 1 ol 171 1 Ql 11 0 A O

95 1 Qfi7 1 7O 1 2-23-/7 5 / ,9j 11 968 7U0 O- / / 57,93 1Q6Q 1 7D7 JJ 5 1 11 Q70 7 /U TVD

9o 7001a •3 in

q 1

98 7008a ZUUOa L)

96 700Q ZUU7

u

96 701 ZU1U0 D

98 701 ZU 1 Js

CC Ol 5-5-82 98 2016 Z.V7 1 VJ C C O 5-5-82 98 70117U9h 10-13-83

98 7070 zuzu 3-30-82

98 7071 ZU^ 1

r\ -\S OA 9-16-80

98 7077 Zl7XZ> 9-16-80

98 2021 4-16-81

98 2024 4-16-81

98 ZUZJ 707 S 2-23-82

96 2010

A

yo

A

yo 2032 10-31-79

Vo 2033

D 1 1 c 1 15 2061 12-1 1-80 QA84 2069 11-29-83 1 14 2106 C

114 2107

C

56 2141 8-28-70

C^56 ?14? — 1 iZ. 9-1-70

56

Z 1 lO 1-12-82 56 Z. 1 H*+ 4-5-73 93 D

84 0 1 QAT _ 1 OU1 5-28-68

84 z> 1 oui 1 5-28-68

84 z- 1 ~ 1 5-28-68

84 91Z, 1 Q?-7Z, 5-28-68 Q A 84 2201 1 H 1 1 2-22-71 84 2202 2-22-71 84 2203 5-21-73

108 2526 8-1-83 108 2527 8-1-83 108 2528 D

108 2529

D

Pace SRM Certificate

D

70 7fim zou 1 AJ\

fin OU 7fi1 zo 1 7qza

AA

fifl OU 7fi1 ZO 1 laj2l

A

/A

fin OU 7fi zo 11 4o4-a

AA

fiO OU 7fi1 ZO 1 Qqya

AA

fin OU 7fi7n^ zozua

AA

fin OU 7fi7 zoz 1 01 a

AA

fin OU 7fi77a zozza

AA 60OU 7671-1 ZOZJd AA 60OU 7fi7Aa zoz^fa AA 60OU 767Sq ZOZJ>d AA 60OU 7ZOZOd 67 fia AA 60OU 7677 zoz / A/\

60OU ZOZo 7fi78

Af\

fin 6u ZOZ 7 A/\

fin 6U ZOJU

AA

fin 6U 7fil ZOJ 1I Ar\

fin 6U 7617 ZOJZ

AA

fin 6U ZOJ 7fillJ

Ar\

fin 6U 2614

Ar\

fin OU 761

s; Ar\

fin 6U ZU2616JO

A/A

fin OU 2637

A

fin OU 2638

A

fin OU 2639

A

fin OU 2640 L. VJ1VJ

AA

fin OU 2641

AA 60OU 2642 AA

fin OU 2643

AA

fin OU 2644

AA

fin OU 2645

AA

fin OU 2646

AA

fin OU 7647

AA

fin OU 2648

AA

fin OU 964Q

AA

fin OU 76S0

AA

fin OU ZU

J 1 AA

fin OU ZU

J z AA

fin OU ZU

JJ

AA

fin OU ZUJ*T

AA 60OU ZU J J AA 60OU 2656 AA

fin OU 76S7 ZOJ / AA

fin OU 76S8 zojo

AA

fin OU ZOJ 76SQ7 AA

fifi 00 7670 zo / u

u

OO 7671 ZO /laq 1 7 7Q 87 IZ-Z7-0Z

fifi 66 7677a ZO / Zd <; 1 fi 81 J- 1 0-o J 66 7671 ZO / J

fi 7 s; 70 0-Z J- / 7

fifi 66 ZO7fi74/ *+ 17 18 7Q 1 Z- 1 0- / 7

fifi 00 ZO7fi7S/ J O- 1 7- / J

00 76761-1 ZO / OD 11181 1- 1 l-o J

fifi OO 767Qa ZO / 7d 1_J fi^ OJ ZOoZ 7fi87 7 7 81 Z- /-OJ

fi^ OJ ZOO 7fi81J 7 7 fil Z- 1-0 j

fi^ OJ ZOo^f 7fi8/l 7 7 fil Z- 1 -oj

fi^ 03 7fi8S ZOO J 7 7 fil Z- /-OJ

117 1 IZ JZUU nnn

AA

112 3210A

112 3216A

103 4200BA

103 420 IBA

103 4206C

A

103 4207A

172
Page SRM Certificate Date Page SRM Certificate I 103 4213 A 104 4952B D

103 4218E

A 104 4953C 5-78

101 4226 8-69 104 4956 3-1-68 101 4229 5-72 104 4957 3-1-68 101 4233B 11-79 104 4958 3-1-68 103 4235 A 104 4959 3-1-68 103 424 IB A 104 4960 3-1-68 101 4245 5-74 104 4961 3-1-68 101 4246 5-74 104 4962 3-1-68 101 4250B 4-82 104 4963 3-1-69 101 4251B 12-81 104 4964B 12-31-65

101 4257 4-79 102 4990C

D

104 4260C

A 103 4997E 6-79

104 4264B 9-82 112 6250

A

104 4266 2-81 119 8000 3-24-83

103 4275B 7-83 119 8001 2-6-74

101 4276B 7-83 119 8002 2-6-74

101 4288 11-82 119 8003 2-6-74 103 43071 D 119 8004 2-6-74 103 4308C A 119 8005 1-78 103 4309G D 119 8006 1-78 103 4310B A 119 8007 1-78 101 4331 3-75 119 8008 3-80

101 4334B 7-79 62,79 8505

D

101 4338 8-80 106 9910

C

105 4350B 9-9-81 81 9940

C

105 4351

D 81 9941

C

105 4352

D 81 9942

C

105 4353 4-81 81 9943

C

105 4355

D 78 U-0002 4-6-81 101,102 4361 1-81 78 U-005a D

101 4370B 5-78 78 U-010 4-6-81 105 4400L-F 7-83 78 U-015 4-6-81 105 4401L-I 1-83 78 U-020a D

106 4402L-C 10-80 78 U-030a

D

106 4403L-B 4-77 78 U-050 4-6-81 106 4404L-F 6-83 78 U-100 4-6-81 105 4405L-B 9-78 78 U-150 4-6-81 105 4406L-G D 78 U-200 4-6-81 105 4407 L-H 12-82 78 U-350 4-6-81 105 4408L-C 1-81 78 U-500 4-6-81 105 4409L-D 9-81 78 U-750 4-6-81 106 4410H-I D 78 U-800 4-6-81 105 4411 LB 2-79 78 U-850 4-6-81 105 4412L-H 3-83 78 U-900 4-6-81 105 4414L-C 6-80 78 U-930 4-6-81 103,106 4415L-I D 78 U-970 4-6-81 105 4416L-D S-83 116 RM 1C E

105 4417L-C

D 116 RM 1RE

105 4418L 11-76 116 RM 5 E

106 4419L-B 9-80 117 RM 31

E

105 4420L

D 105,117 RM 45B

E

105 442 1L 1-80 117 RM 50

E

101 4422L 4-80 118 GM 754

F

102 4904F

D 118 GM 757

F

102 4906B 7-78 118 GM 758

F

102 4907 11-79 118 GM 759

F

101 4915D

D 118 GM 760

F

101 4926C 1-79 118 GM 761

F

103 4935C 7-23-74

101 4943

D

101 4945D 11-82

101 4947 4-79

101 4949B 2-82

173
Marketing and advertising

assignments are handled by

Catherine Hudson, editor of the

current SRM catalog.

174

U.S. Department of Commerce

National Bureau of Standards

Office of Standard Reference Materials

Rm. B311, Chemistry Bldg.

Washington, DC 20234

Return Postage Guaranteed

Official Business

Penalty for Private Use, $300 Special Fourth Class Rate Postage and Fees Paid

NBS

Permit No.

G195