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NBS SPECIAL PUBLICATION 260-1 05

U.S. DEPARTMENT OF QOMMERCE/National Bureau of Standards

QC

100

U57

260-105

1986

C 2

Standard Reference Materials:

Summary of the

Environmental Research,

Analysis, and Control

Standards Issued by the

National Bureau of

Standards

R. Mavrodineanu and S. D. Rasberry
Tm he National Bureau of Standards' was established by an act of Congress on March 3, 1901. The

Bureau's overall goal is to strengthen and advance the nation's science and technology and facilitate their effective application for public benefit. To this end, the Bureau conducts research and provides: (1) a

basis for the nation's physical measurement system, (2) scientific and technological services for industry and

government, (3) a technical basis for equity in trade, and (4) technical services to promote public safety.

The Bureau's technical work is performed by the National Measurement Laboratory, the National

Engineering Laboratory, the Institute for Computer Sciences and Technology, and the Institute for Materials

Science and Engineering

.

The National Measurement Laboratory

Provides the national system of physical and chemical measurement;

coordinates the system with measurement systems of other nations and

furnishes essential services leading to accurate and uniform physical and

chemical measurement throughout the Nation's scientific community, in- dustry, and commerce; provides advisory and research services to other Government agencies; conducts physical and chemical research; develops,

produces, and distributes Standard Reference Materials; and provides

calibration services. The Laboratory consists of the following centers:

• Basic Standards2

• Radiation Research

• Chemical Physics

• Analytical Chemistry

The National Engineering Laboratory

Provides technology and technical services to the public and private sectors to address national needs and to solve national problems; conducts research in engineering and applied science in support of these efforts; builds and maintains competence in the necessary disciplines required to carry out this research and technical service; develops engineering data and measurement

capabilities; provides engineering measurement traceability services; develops

test methods and proposes engineering standards and code changes; develops

and proposes new engineering practices; and develops and improves

mechanisms to transfer results of its research to the ultimate user. The

Laboratory consists of the following centers:

Applied Mathematics

Electronics and Electrical Engineering2 Manufacturing Engineering

Building Technology

Fire Research

Chemical Engineering2

The Institute for Computer Sciences and Technology

Conducts research and provides scientific and technical services to aid Federal agencies in the selection, acquisition, application, and use of computer technology to improve effectiveness and economy in Government

operations in accordance with Public Law 89-306 (40 U.S.C. 759), relevant Executive Orders, and other directives; carries out this mission by managing

the Federal Information Processing Standards Program, developing Federal ADP standards guidelines, and managing Federal participation in ADP

voluntary standardization activities; provides scientific and technological advisory services and assistance to Federal agencies; and provides the technical foundation for computer-related policies of the Federal Government. The Institute consists of the following centers:

Programming Science and

Technology

Computer Systems

Engineering

The Institute for Materials Science and Engineering

Conducts research and provides measurements, data, standards, reference

materials, quantitative understanding and other technical information fundamental to the processing, structure, properties and performance of materials; addresses the scientific basis for new advanced materials technologies; plans

research around cross-country scientific themes such as nondestructive

evaluation and phase diagram development; oversees Bureau-wide technical programs in nuclear reactor radiation research and nondestructive evaluation; and broadly disseminates generic technical information resulting from

its programs. The Institute consists of the following Divisions:

Ceramics

Fracture and Deformation 3 Polymers

Metallurgy Reactor Radiation

'Headquarters and Laboratories at Gaithersburg, MD, unless otherwise noted; mailing address

Gaithersburg, MD 20899.

2 Some divisions within the center are located at Boulder, CO 80303. 'Located at Boulder, CO, with some elements at Gaithersburg, MD.
' ' * RESEARCH HJrOKMATOl

Standard Reference Materials:

"/j^6. Summary of the Environmental Research,

Analysis, and Control Standards Issued by

the National Bureau of Standards

R. Mavrodineanu 1

Center for Analytical Chemistry

National Measurement Laboratory

National Bureau of Standards

Gaithersburg, MD 20899

and

S. D. Rasberry

Office of Standard Reference Materials

National Measurement Laboratory

National Bureau of Standards

Gaithersburg, MD 20899

1 Present Address: 227 Almeria Road

West Palm Beach, FL 33405

U.S. DEPARTMENT OF COMMERCE, Malcolm Baldrige, Secretary

NATIONAL BUREAU OF STANDARDS, Ernest Ambler, Director

Issued March 1986
Library of Congress Catalog Card Number: 86-600504

National Bureau of Standards Special Publication 260-105

Natl. Bur. Stand. (U.S.), Spec. Publ. 260-105,93 pages (Mar. 1986)

CODEN: XNBSAV

U.S. GOVERNMENT PRINTING OFFICE

WASHINGTON: 1986

For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402
Preface

Standard Reference Materials (SRM's) as defined by the National Bureau of Standards (NBS) are well-characterized materials, produced in quantity and certified for one or more physical or chemical properties. They are used to assure the accuracy and compatibility of measurements

throughout the Nation. SRM's are widely used as primary standards in many diverse fields in

science, industry, and technology, both within the United States and throughout the world. They are also used extensively in the fields of environmental and clinical analysis. In many applications,

traceability of quality control and measurement processes to the national measurement system is

carried out through the mechanism and use of SRM's. For many of the Nation's scientists and

technologists it is therefore of more than passing interest to know the details of the measurements

made at NBS in arriving at the certified values of the SRM's produced. An NBS series of papers, of

which this publication is a member, called the NBS Special Publica tion - 260 Series , is reserved for

this purpose.

The 260 Series is dedicated to the dissemination of information on different phases of the

preparation, measurement, certification and use of NBS SRM's. In general, much more detail will be found in these papers than is generally allowed, or desirable, in scientific journal articles. This

enables the user to assess the validity and accuracy of the measurement processes employed, to judge

the statistical analysis, and to learn details of techniques and methods utilized for work entailing

the greatest care and accuracy. These papers also should provide sufficient additional information

not found on the certificate so that new applications in diverse fields not foreseen at the time the

SRM was originally issued will be sought and found.

Inquiries concerning the technical content of this paper should be directed to the author(s).

Other questions concerned with the availability, delivery, price, and so forth, will receive prompt

attention from:

Office of Standard Reference Materials

National Bureau of Standards

Gaithersburg, MD 20899

Stanley D. Rasberry, Chief

Office of Standard Reference Materials

iii
OTHER NBS PUBLICATIONS IN THIS SERIES

Catalog of NBS Standard Reference Materials

(1984-85 edition), Catherine H. Hudson, ed., NBS

Spec. Publ. 260 (February 1984). $5.50* SN003-

003-02558-5.

Michaelis, R. E., and Wyman, L. L. Standard

Reference Materials: Preparation of White Cast

Iron Spectrochemical Standards. NBS Misc. Publ. 260-1 (June 1964). COM74-1 1061**

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). COM74-

1 1063**

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 LowAlloy Steel, NBS Misc. Publ. 260-10 (December

(1965). COM74-11064**

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 Refer- ence Materials: Recommended Method of Use

of Standard Light-Sensitive Paper for Calibrat- ing 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- 1 1062** 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. 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 (Certifica- tion 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 Measure- ments 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). COM74-1 1357**

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., Marineko, G., and Hague, J. L., Standard Reference Materials: Comparison

of Redox Standards, NBS Spec. Publ. 260-24 (January 1972). COM72-50058**

i V
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). COM74-1 1356** 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). 85 cents* PB 81176620

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-

11358**

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 Gold-Silver and GoldCopper Alloys for Microanalysis, NBS Spec. Publ. 260-28 (August 1971). COM7I-50365**

Geller, S. B., Standard Reference Materials: Cali- bration 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). COM71-50282

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). COM71-50563**

Mavrodineanu, R., and Lazar, J. W., Standard

Reference Materials: Standard Quartz Cuvettes, for High Accuracy Spectrophotometry, NBS

Spec. Publ. 260-32 (December 1973). 55 cents* SN003-003-01213-1 Wagner, H. L., Standard Reference Materials: Comparison of Original and Supplemental

SRM 705, Narrow Molecular Weight Distri- bution 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 Refer- ence Materials: Thermal Conductivity of

Austenitic Stainless Steel, SRM 735 from 5 to 280 K, NBS Spec. Publ. 260-35 (April 1972.) 35 cents* COM72-50368**

Cali, J. P., Mandel, J., Moore, L. J., and Young, D.

S., Standard Reference Materials: A Referee 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 Refer- ence 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 High-Purity Metals, NBS

Spec. Publ. 260-39 (May 1972). COM72-50529**

McAdie, H. G., Garn, 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 LightSensitive 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). COM72-

50944**

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., Maienthal, E. J., Rains, T. C, and

Rasberry, S. D., Standard Reference Materials: Powdered Lead-Based Paint, SRM 1579, NBS

Spec. Publ. 260-45 (March 1973). COM73-

50226**

Hust, J. G., and Giarratano, P. J., Standard Refer- ence 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). SN003-003-0 1278-5*

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. 260-47 (February

1974). COM74-50176**

Mangum, B. W., and Wise, J. A.. Standard Refer- ence Materials: Description and Use of Precision Thermometers for the Clinical Laboratory,

SRM 933 and SRM 934, NBS Spec. Publ. 260-48 (May 1974). 60 cents* 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). COM74-51185

V
Hust, J. G., and Giarratano, P. J., Standard Refer- ence 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). $1.00* SN003-003-01425-7 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). $1.90* SN003-003-01481-8

Hust, J. G., and Giarratano, P. J., Standard Refer- ence Materials: Thermal Conductivity and Electrical Resistivity Standard Reference Materials 730 and 799, from 4 to 3000 K, NBS Spec. Publ. 260-52 (September 1975). $1.05* SN003-003-

01464-8 Durst, R. A., Standard Reference Materials: Standardization of pH Measurements, NBS

Spec. Publ. 260-53 (December 1975, Revised). $1.05 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). $3.00* SN003-003-

01828-7

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). $2.20* SN003-003-

01836-8

Powell, R. L., Sparks, L. L., and Hust, J. G., Standard Reference Materials: Standard

Thermocouple Materials, Pt.67: SRM 1967, NBS

Spec. Publ. 260-56 (February 1978). $2.20* SN003-003-0 18864

Cali, J. P. and Plebanski, T., Guide to United

States Reference Materials, NBS Spec. Publ. 260-57 (February 1978). $2.20* PB 277173

Barnes, J. D., and Martin, G. M., Standard Refer- ence Materials: Polyester Film for Oxygen Gas

Transmission Measurements SRM 1470, NBS

Spec. Publ. 260-58 (June 1979) $2.00* SN003-

003-02077 Chang, T., and Kahn, A. H. Standard Reference

Materials: Electron Paramagnetic Resonance

Intensity Standard; SRM 2601, NBS Spec.

Publ. 260-59 (August 1978) $2.30* SN003-

003-01975-5 Velapoldi, R. A., Paule, R. C, Schaffer, R., Mandel, J,, and Moody, J. R., Standard Refer- ence Materials: A Reference Method for the Determination of Sodium in Serum, NBS Spec. Publ. 260-60 (August 1978). $3.00* SN003-003

01978-0

Verdier, P. H., and Wagner. H. L., Standard Refer- ence Materials: The Characterization of Linear Polyethylene (SRM 1482, 1483, 1484), NBS

Spec. Publ. 260-61 (December 1978). $1.70* 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). $2.30* 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 for the Determination of Potassium in Serum. NBS Spec. Publ. 260-63 (May 1979). $3.75* 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). $4.25* 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). $3.50* SN003-003-021 14-1 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). $3.50* SN003-003-

02127-0

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). $3.75* SN003-

003-02136-9 Mavrodineanu, R. and Baldwin, J. R., Standard

Reference Materials: Metal-On-Quartz Filters as a Standard Reference Material for Spectrophotometry-SRM 2031, NBS Spec. Publ. 260-68

(April 1980). $4.25* SN003-003-02 167-9 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). $4.25* 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). $2.50* 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). $6.50* 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). $4.25* SN003-003-02329-9

vi
Interrante, C. G., and Hicho, G. E., Standard Refer- ence Materials: A Standard Reference Material Containing Nominally Fifteen Percent Austenite (SRM 486), NBS Spec. Publ. 260-73 (January

1982). $2.75* 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). $3.50 SN003-003-023-95-7

Weidner, V. R., and 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). $3.75 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). $3.50 SN003-003-024-33-3 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). $6.00 SN003-003-024-34-1

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). $3.75* 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). $4.50* 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). $4.75* SN003-

003-024-43-1 Burke, R. W., and Mavrodineanu, R. (NBS retired), Standard Reference Materials: Accuracy in Analytical Spectrophotometry, NBS Spec. Publ. 260-81 (April 1983). $6.00* SN003-003-024-8

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). $3.75* SN003-003-024-89-9**

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). $4.50* 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 (August 1983). $4.50* SN003-003-025-20-8

Swyt, D. A., Standard Reference Materials: A Look

at Techniques for the Dimensional Calibration of Standard Microscopic Particles, NBS Spec. Publ. 260-85 (September 1983). $5.50* SN003-003-

025-21-6 Hicho, G. E. and Eaton, E. E., Standard Reference Materials: A Standard Reference Material

Containing Two and One-Half Percent Austenite,

SRM 488, NBS Spec. Publ. 260-86 (December

1983) . $1.75* SN003-003-025-41-1 Mangum, B. W., Standard Reference Materials: SRM 1969: Rubidium Triple-Point - A Temperature Reference Standard Near 39.30 °C, NBS

Spec. Publ. 260-87 (December 1983). $2.25* SN003-003-025-44-5 Gladney, E. S., Burns, C. E., Perrin, D. R., Roelandts, I., and Gills, T. E., Standard Reference Materials: 1982 Compilation of Elemental

Concentration Data for NBS Biological, Geological, and Environmental Standard Reference

Materials. Spec. Publ. 260-88 (March 1984). $7.00* SN003-003-02565-8

Hust, J. G., Standard Reference Materials: A Fine- Grained, Isotropic Graphite for Use as NBS

Thermophysical Property RM's from 5 to 2500 K, NBS Spec. Publ. 260-89 (September 1984). $4.50* SN003-003-02608-5

Hust, J. G., and Lankford. A. B., Standard

Reference Materials: Update of Thermal

Conductivity and Electrical Resistivity of

Electrolytic Iron, Tungsten, and Stainless Steel, NBS Spec. Publ. 260-90 (September 1984). $3.00* SN003-003-02609-3

Goodrich, L. F., Vecchia, D. F., Pittman, E. S., Ekin, J. W., and Clark, A. F., Standard Reference

Materials: Critical Current Measurements on an NbTi Superconducting Wire Standard Reference

Material, NBS Spec. Publ. 260-91 (September

1984). $2.75* SN003-003-02614-0

Carpenter, B. S., Standard Reference Materials: Calibrated Glass Standards for Fission Track Use (Supplement to NBS Spec. 260-49). NBS

Spec. Publ.. 260-92 (September 1984). $1.50* SN003-003-02610-7

Ehrstein, J., Preparation and Certification of Standard Reference Materials for Calibration of Spreading Resistance Probes, NBS Spec. Publ. 260-93 (January 1985). $2.25* SN003-003-02633-6

Gills, T. E., Koch, W. F. Stolz, J. W., Kelly, W. R., Paulsen, P. J., Colbert, J. C. Kirklin, D. R., Pei, P.T.S., Weeks, S., Lindstrom, R. M.

Fleming, R. F., Greenberg, R. R., and

Paule, R. C, Methods and Procedures Used at the National Bureau of Standards to Certify Sulfur

in Coal SRM's for Sulfur Content, Calorific Value, Ash Content, NBS Spec. Publ. 260-94 (December 1984). $2.25* SN003-003-02629-8

Mulholland, G. W., Hartman, A. W., Hembree,

G. G., Marx, E., and Lettieri, T. R., Standard

Reference Materials: Development of a 1 m

Diameter Particle Size Standard, SRM 1690, NBS Spec. Publ. 260-95 (May 1985). SN003-003-

02665-4

vi i
Carpenter, B. S., Gramlich, J. W., Greenberg, R. R., and Machlan, L. A., Standard Reference

Materials: Uranium-235 Isotopic Abundance

Standard Reference Materials for Gamma

Spectrometry Measurements, NBS Spec. Publ. 260-96 (In Preparation).

Mavrodineanu, R. and Gills, T. E., Standard

Reference Materials: Summary of the Coal, Ore, Mineral, Rock, and Refractory Standards Issued by the National Bureau of Standards, NBS Spec.

Publ. 260-97 (September 1985). Hust, J. G., Standard Reference Materials: Glass Fiberboard SRM for Thermal Resistance, NBS

Spec. Publ. 260-98 (August 1985). SN003-003-

02674-3

Callanan, J. E., Sullivan, S. A., and Vecchia, D. F., Standard Reference Materials: Feasibility Study

for the Development of Standards Using

Differential Scanning Calorimetry, NBS Spec.

Publ. 260-99 (August 1985). SN003-003-02675-1

Taylor, J. K., Standard Reference Materials: Handbook for SRM Users, NBS Spec. Publ. 260-100

(In Press). Mangum, B. W., Standard Reference Materials: SRM 1970, Succinonitrile Triple-Point Standard: A Temperature Reference Standard Near

58.08 °C, NBS Spec. Publ. 260-101 (In

Preparation).

Weidner, V. R., Mavrodineanu, R., Mielenz, K. D., Velapoldi, R. A., Eckerle, K. L., and Adams, B., Standard Reference Materials: Holmium Oxide

Solution Wavelength Standard from 240- 650 nm, SRM 2034, NBS Spec. Publ. 260-102 (In Press). Hust, J. G., Standard Reference Materials: Glass Fiberblanket SRM for Thermal Resistance, NBS

Spec. Publ. 260-103 (September 1985). SN003-

003-02687-5 Mavrodineanu, R. and Alvarez, R., Standard

Reference Materials: Summary of the Biological and Botanical Standards Issued by the National Bureau of Standards, NBS Spec. Publ. 260-104 (November 1985). Mavrodineanu, R. and Rasberry, S.D., Standard

Reference Materials: Summary of the Environ- mental Research, Analysis, and Control

Standards Issued by the National Bureau of Standards, NBS Spec. Publ. 260-105.

* Send order with remittance to Superintendent

of Documents, US Government Printing Office Washington, DC 20402. Remittance from

foreign countries should include an additional one-fourth of the purchase price for postage. ** May be ordered from: National Technical Information Services (NTIS). Springfield

Virginia 22161.
TABLE OF CONTENTS

Page

Preface iii

Abstract x

Introduction 1

Table 1. Categories of Standard Reference Materials available from the

National Bureau of Standards

Environmental Research, Analysis, and Control Standards 4

Table 2. Summary of the Environmental Research, Analysis, and Control

Standards 6

Table 3. Comparative List of Chemical Elements for the SRM's Described

in Table 2 12

Appendix I. Alphabetical Index by Standard Reference Material Name 15

Appendix II. Certificates for the Environmental Research, Analysis, and

Control Standards (listed in numerical order) 28

Appendix III. Guide for Requesting Development of Standard Reference

Materials 81

Appendix IV. Guide to Ordering Standard Reference Materials 82

ix
Abstract

This publication is a summary of the environmental

research, analysis, and control standards issued by NBS as Standard Reference Materials (SRM's). The material, com- position, certification, use, and remarks concerning each

of the SRM's described are presented in tabular form.

Copies of the certificates of these SRM's are contained in

the appendix for more detailed information.

Key Words: chemical composition; environmental standards;

Standard Reference Materials.

x
Introduct ion

Since its inauguration in 1901 , the National Bureau of Standards (NBS) has issued nearly 2000

different Standard Reference Materials (SRM's). Many of these have been renewed several times, many

have been replaced or discontinued as technology changed. Today, over 900 SRM's are available,

together with a large number of scientific publications related to the fundamental and applied

characteristics of these materials. Each material is certified for chemical composition, chemical

properties, or its physical or mechanical characteristics. Each SRM is provided with a Certificate

or Certificate of Analysis that contains the essential data concerning its properties or characteristics. The SRM's currently available cover a wide range of chemical, physical, and

mechanical properties, and a corresponding wide range of measurement interests in practically all

aspects of fundamental and applied science. These SRM's constitute a unique and invaluable means of

transferring to the user accurate data obtained at NBS, and provide essential tools that can be used

to improve accuracy in practically all areas where measurements are performed.

In addition to SRM's, the National Bureau of Standards issues a variety of Research Materials

(RM's) having various properties described in individual "Reports of Investigation." They are intended primarily to further the scientific or technical research on that particular material.

Other materials, called Special Reference Materials (GM's), are also available from NBS. These are materials produced and certified by other Government agencies, standard organizations, or other

nonprofit organizations, that are considered useful to the public and for which no alternate method

of national distribution exists.

The various categories of materials available from NBS are given in table 1 . This table lists

these materials according to their chemical composition, physical properties, or engineering

characteristics. A more detailed alphabetic enumeration of these materials is given in appendix I. Table 1 and appendix I were taken from NBS Special Publication 260, NBS Standard Reference Materials

Catalog, 1984-85 Edition . This publication lists every material available from the NBS Office of

Standard Reference Materials.

Further information on the reference materials available from NBS may be obtained from the

Office of Standard Reference Materials, National Bureau of Standards, Gaithersburg , MD 20899.

Information on other NBS services may be obtained from the Technical Information and Publications

Division, National Bureau of Standards, Gaithersburg, MD 20899.

In addition to reference materials, NBS provides many additional services. These include:

Measurement Assurance Programs, Calibration and Related Measurement Services, Proficiency Sample

Programs, a National Voluntary Laboratory Accreditation Program, Standards Information Services,

Standard Reference Data, and Technical Information and Publications.

For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington,

DC 20402, under Stock No. 003-003-02558-5 (Price $5.50, add 25 percent for foreign orders.)

1
Table 1 . Categories of Standard Reference Material? available from the National Bureau

of Standards.

CERTIFIED CHEMICAL

Steels (chip form)

Plain carbon

Low alloy

High alloy

Stainless

Tool

Steels (granular form)

Steels (solid form)

Ingot iron and low alloy

Special ingot irons and low alloy

Stainless

Specialty

High-temperature alloys

Tool

Steelmaking Alloys

Cast Irons (chip form)

Cast Steels, White Cast Irons, Ductile

Irons, and Blast Furnace Irons

(solid form)

Nonferrous Alloys (chip form)

Aluminum "Benchmarks"

Cobalt

Copper

Copper "Benchmarks"

Lead

Magnesium

Nickel

Nickel Superalloy, Trace Elements

Nickel oxide

Selenium

Tin

Titanium

Zinc

Zirconium

Nonferrous Alloys (solid form)

Aluminum "Benchmarks"

Copper

Copper "Benchmarks"

Lead

Nickel

Titanium

Zinc

Zirconium

COMPOSITION STANDARDS

Gases in Metals

High-Purity Metals

Electron Probe Microanalytical Standards

Primary, Working, and Secondary

Standard Chemicals

Microchemical Standards

Clinical Laboratory Standards

Biological Standards

Environmental Standards

Analyzed gases

Analyzed liquids and solids

Permeation tubes

Industrial Hygiene Standards

Spectrochemical Standards

Hydrocarbon Blends

Metallo-Organic Compounds

Fertilizers

Ores

Minerals, Refractories, Glasses, and

Carbides

Cement

Trace Element Standards

Nuclear Materials

Special nuclear materials

Plutonium assay

Plutonium isotopic

Uranium assay

Uranium isotopic

Neutron density standards

Fission track glass standards

Isotopic Reference Standards

2
Table 1. continued.

CERTIFIED PHYSICAL PROPERTY STANDARDS

Ion Activity Standards

pH standards

pD standards

Ion selective electrodes

Mechanical and Metrology Standards

Magnification

Coating thickness

Glass

Elasticity

Density

Polymer

Rheology

Heat Standards

Superconductive thermometric fixed

point devices

Freezing Points

Defining fixed points

Determined reference points

Melting points

Calorimetric

Combustion

Solution

Heat source Enthalpy and heat capacity

Vapor pressure

Thermal expansion

Thermocouple materials

Thermal resistance

Magnetic Standards

Magnetic susceptibility

Magnetic moment

Paramagnetic resonance

Optical Standards

Spectrophotometric

Thermal emittance

Refractive index

Radioactivity Standards

Alpha-particle standards

Beta-particle and gamma-ray gas

standards

Alpha-particle, beta-particle,

gamma-ray, and electron-capture

solution standards

Contemporary standard for carbon-14

dating laboratories

Environmental standards

Low energy photon sources Gamma-ray "point-source" standards

Radium gamma-ray solution standards

Radium solution standards for

random analysis

Radioactivity standard reference

materials currently not in stock

Metallurgical

Mossbauer

X-ray Diffraction

Gas Transmission

Permittivity

Reference Fuels

Resistivity

ENGINEERING TYPE STANDARDS

Standard Rubber and RubberCompounding Materials

Reference Magnetic Tapes

Lubricant Standards

Sizing Standards

Glass spheres for particle size

Turbidimetric and fineness (cement)

X-ray and Photographic Standards

Surface Flammability Standards

Semiconductor Production Standards

Water Vapor Permeance

Tape Adhesion Testing Standards

Color Standards

RESEARCH MATERIALS SPECIAL REFERENCE MATERIALS

3
Environmental Research, Analysis, and Control Standards

This work is the fourth in a series of NBS Special Publications dedicated to the description of

the Standard Reference Materials (SRM's) issued by the National Bureau of Standards (NBS).

The first volume, NBS SP 260-71 , "Summary of the Clinical Laboratory Standards Issued by the

National Bureau of Standards" (176 pp., November 1981), describes in a tabular form 41 SRM's

available in that field and includes copies of the corresponding Certificates of Analysis for

further information.

The second volume, NBS SP 260-97, "Summary of the Coal, Ore, Mineral, Rock, and Refractory

Standards Issued by the National Bureau of Standards" (134 pp., September 1985), describes in the same manner 39 SRM's available in that field.

The third volume, NBS SP 260-104, "Summary of the Biological and Botanical Standards Issued by

the National Bureau of Standards" (68 pp., October 1985), presents in a similar manner the essential

data concerning 9 SRM's issued in that field.

The present volume, NBS SP 260-105, "Summary of the Environmental Research, Analysis, and

Control Standards Issued by the National Bureau of Standards" (97 pp., March 1986), describes in a tabular form the characteristic properties of 22 SRM's issued in the field of environmental

analytical instrumentation and methodology. Copies of the Certificates of Analysis are reproduced

in this work also, for further information.

Tables 2 and 3 contain the essential information concerning the material composition, the

certification parameters, and use. Under "Remarks," additional data such as storage conditions and

stability is provided. All the data and information contained in these tables were extracted from

the Certificates or Certificates of Analysis issued for the SRM's included in the table. An examination of these tables gives the reader a general view of these SRM's. For more detailed

information, the individual Certificates reproduced in appendix II should be consulted as well as the references cited in each Certificate. The SRM's listed in the tables include all of the

environmental standards that were issued or were in preparation by the end of 1984. These SRM's are

the result of the concerted efforts of a number of scientists from the NBS National Measurement

Laboratory. Each Certificate lists the individuals who contributed to development of the SRM.

Appendix III provides a guide to the reader to assist in requesting NBS to develop new SRM's. A final appendix, appendix IV, is a guide to ordering SRM's.

In addition to the SRM's and their Certificates, NBS issues a series of Special Publications,

called the "260 Series," that relate directly to Standard Reference Materials as stated in the

preface. The list of available publications in the "260 Series" is given at the beginning of this

publication."

NOTE: The use of proprietary designations in table 2 is for information only, and should not be

construed as an endorsement of the product by either the Department of Commerce or the National

Bureau of Standards.

For complete bibliographic reference and ordering information, see "Other NBS Publications in This

Series," pp. iv.

4
TABLE 2. SUMMARY OF THE ENVIRONMENTAL

RESEARCH. ANALYSIS. AND

CONTROL STANDARDS.
SRM Material COMPOSITION

1579

Powdered Lead Based Paint

Collected by the Philadelphia

Dept. Public Health, and

sieved to a powder passing

through a 325 mesh sieve.

Pb: 11 .87 + 0.04 % by wt .

,

based on samples >0.1 g of

as-received material.

1580

Organics in Shale Oil

The shale oil came from the

Laramie Energy Technology

Center, Laramie, Wyoming, and was collected from the

Mahogany Zone of the Colorado

Green River Formation.

Fluoranthene : 54; pyrene:

104; benzo [ a] pyrene : 21; benzo [e ] pyrene : 18; perylene:

3.4; phenol: 407; o-cresol:

385; 2,6-dimethylphenol: 175; benzol [ f ] quinoline : 16, yg/g.

1620a

Sulfur in Residual Fuel Oil

The material is a commercial

"No. 5 Heavy" residual fuel

oil as defined by the American

Society for Testing and

Materials

4.504 + 0.010 wt. %.

1621b

Sulfur in Residual Fuel Oil

The material is a commercial

"No. 6" residual fuel oil as defined by the American

Society for Testing and

Materials

S: 0.950 + 0.005 wt. %,

1622b

Sulfur in Residual Fuel Oil

Same as for SRM 1621b. S: 1 .982 + 0.018 wt. %.

1623a

Sulfur in Residual Fuel Oil

Same as for SRM 1620a. S: 0.240 + 0.003 wt. %.

1624a

Sulfur in Distillate (Diesel)

Fuel Oil

The material is a commercial

"No. 2-D" distillate fuel oil

as defined by the American

Society for Testing and

Materials

S: 0.141 + 0.002 wt. %,

1630

Trace Mercury in Coal

Commercial coal crushed to 210-500 micrometer particle

size

Hg: 0.13 yg/g + 1 in the

last significant figure.

6
Certification Use Remarks

By x-ray fluorescence, atomic

absorption spectrometry,

polar ography.

In the calibration of apparatus

and methods for determining Pb

in paint removed from the

interior surfaces of old

housing

.

By gas chromatography, gas

chromatography/mass spectrometry, and high performance

liquid chromatography.

For evaluating the reliability

of analytical methods used for

trace organic compounds in oil

materials.

Seven additional organic

compounds are included for

information only and are not certified

.

By gravimetry, ion chroma- As analytical standard in the Four additional physical

tography, and x-ray fluor- determination of total S in properties are indicated but escence . fuel oils and similar are not certified; similarly,

materials

.

16 trace elements are mentioned semi-quantitatively

only.

As for SRM 1620a. Is valid

for 3 years from date of

purchase

.

As for SRM 1620a.

As for SRM 1621b. As for SRM 1621b.

As for SRM 1620a. As for SRM 1620a.

By gravimetry and ion

chromatography. Is valid for

3 years from date of purchase.

As for SRM 1620a.

By neutron activation and As analytical standard for the Selenium is also given for

flameless atomic absorption determination of trace mercury information, but is not spectrometry (0.14 yg/g). The in coal

.

certified (2.1 yjj/g).

neutron activiation procedure

is described in the certificate.

7
Table 2. Continued.

SRM Material Composition

1632b

Trace Elements in Coal

( Bituminous)

Obtained from an underground

mine that recovers coal from

the Pittsburgh seam, crushed

and sieved through a -60 mesh

at the Humphrey No. 7 mine and

coal preparation plant of the

Consolidation Coal Co.,

Christopher Coal Co. Div.,

Osage, W. Va.

Material should be vacuum

dried at ambient temperature

for 24 hours prior to use. Values based on a minimum

sample size of 250 mg.

C (total) 78.11; H 5.07; N 1.56; S 1.89; Volatile

matter 35.4; Al 0.855; Ca

.204; Fe .759; Mg .0383; K

.0748; Na .0515; Ti .0454;

values % by wt . As 3.72;

Ba 67.5; Cd 0.0573; Co 2.29;

Cu 6.28; Pb 3.67; Mn 12.4;

Ni 6.10; Rb 5.05; Se 1 .29; Th 1 .342; U 0.436; Zn 11 .89; values yg/g. Not certified:

17 additional constituents

(see certificate).

1633a

Trace Elements in

Coal Fly Ash

Obtained from a coal fired

power plant using Pennsylvania

and West Virginia Coal. The

ash was sieved through a No. 170 sieve.

Determined on 250 mg or more

sample dried to constant

weight. Al 14.3; Ca 1.11; Fe 9.40; K 1.88; Mg 0.455;

Na 0.17; Si 22.8; wt . %. Sb 6.8; As 145; Cd 1 .0; Cr

196; Cu 118; Hg 0.16; Ni 127; Pb 72.4; Rb 131; Se 10.3; Sr

830; Th 24.7; Tl 5.7; U 10.2;

V 2.97; Zn 220; yg/g. Additional 15 elements determined

but not certified.

1634a

Trace Elements

Fuel Oil

Commerical No. 6 residual fuel

oil as defined by ASTM.

Determined on at least 1 g sample. Pb 2.80; Mn 0.19;

Ni 29; Se 0.15; Na 87; V 56; Zn 2.7; yg/g. S 2.85 wt . %. Values for additional 11 elements and 4 physical properties are given but not certified.

1635

Trace Elements in Coal

( Subbituminous)

Subbituminous coal from Eagle

Mine of the Imperial Coal Co.

of Erie, Colorado; sieved

through a No. 65 sieve.

Determined on at least 250 mg

of dried sample. As 0.42; Cd

0.03; Cr 2.5; Cu 3.6; Pb 1.9;

Mn 21 .4; Ni 1 .74; Se 0.9; Th

0.62; U 0.24; V 5.2; Zn 4.7;

yg/g; and Fe 0.239; S 0.33

wt %. Additional 10 elements

determined but not certified.

1636a, 1637a, 1638a

Lead in Reference Fuel

Supplied by Phillips Petroleum

Co., Bartlesville , Okla. Lead

was added as tetraethyl lead

motor mix.

Determined on at least 1 g sample. Vial 1-11.2;

Vial 11-18. 8; Vial III-25.1;

Vial IV-764 yg/g.

8
Certification Use Pena rks

Analyses performed in the NBS

Center for Analytical Chemistry.

Estimated uncertainty 0.006

depending on constituent.

For the calibration of apparatus and the evaluation of

techniques employed in the

analysis of coal or similar

materials

.

Should be kept in its original

bottle. Should not be exposed

to intense sources of radiation, including ultraviolet

lamps or sunlight.

Using two to four different

analytical procedures for each

element as shown in the Certificate, on the dried sample.

For calibration of apparatus and

methods used in the analysis of

coal ash and similar materials.

The materials should be dried

as indicated in the Certificate. Stability (>3 years)

not yet established.

Using two to three independent

analytical procedures for each

element

.

For calibration of apparatus and

methods used in the analysis of

fuel oils and similar materials

for trace elements.

Store in tightly sealed

bottle. Certificate valid

for 3 years from date of purchase

.

Using two to three independent

analytical procedures for each

element. For sample drying,

see the Certificate.

For calibration of apparatus and

techniques used in trace element

analysis of coal and similar

materials

.

Store in tightly sealed

bottle in a cool, dark place.

Long term (>1 year) stability

not yet established.

By isotope dilution mass spectrometry. SRM 1636a is made

from Vials I, II, III, and IV. SRM 1637a is made from Vials

I, II, and III. SRM 1638a is

made from Vial IV.

For calibration of instruments

and techniques used for the

analysis of Pb in gasoline.

The vials should be stored at 10-30 °C in darkness, and not reused after first opening.

9
Table 2. - Continued.

SRM Material Composition

1641b

Mercury in Water - yg/mL

This SRM was prepared at NBS

and is delivered in 6 ampoules

of 20 mL each.

Hg: 1.52 + 0.04 y/mL.

1642b

Mercury in Water - ng/mL

Same as SRM 1641b. Hg: 1.49 + 0.06 ng/mL.

1643b

Trace Elements in Water

Prepared at the U.S. Geological

Survey, National Water Quality

Laboratory, Arvada, Colo., by

using high-purity reagents and

sterilization.

Ba 44; Be 19; Cd 20; Cr 18.6;

Co 26; Cu 21 .9; Fe 99; Pb

23.7; Mn 28; Mo 85; Ni 49; Se

9.7; Ag 9.8; Sr 227; Tl 8; V 45.2; Zn 66 ng/g. Additional

3 elements determined but not certified

.

1644

Generator Columns for

Polynuclear Aromatic

Hydrocarbons

Three 50 cm x 0.6 cm coiled

stainless steel tubes each

packed with fine quintus

quartz coated with 0.5 wt. % of polynuclear aromatic

hydrocarbon (PAH).

At 20 °C: anthracene 30.7;

benzo(a)anthracene 6.45;

benzo(a)pyrene 1.13, all in

yg/Kg.

1645

River Sediment

Deposit dredged from the bottom

of Indiana Harbor Canal, Gary,

Ind., freeze-dried , sieved

(No. 80 screen) and radiationsterilized .

Al 2.26; Cr 2.96; Fe 11.3;

K 1.26; Mg 0.74; Na 0.54; Zn 0.172, wt %. Cd 10.2; Cu 109; Co 10.1; Pb 714; Mn

785; Hg 1.1; Ni 45.8; Tl 1 .44; Th 1.62; U 1.11; V 23.5; pg/g.

Additional 13 values determined but not certified.

1646

Estuarine Sediment

Dredged from the Chesapeake

Bay, freeze-dried, radiationsterilized and sieved (No.

100 sieve).

Al 6.25; Ca 0.83; Fe 3.35;

Mg 1 .09; P 0.054, wt. %. As 11.6; Cd 0.36; Cr 76; Co

10.5; Cu 18; Pb 28.2; Mn 375;

Hg 0.063; Ni 32; V 94; Zn 138,

yg/g.

1648

Urban Particulate Matter

Urban particulate matter was collected in St. Louis, Mo., over a period of 12 months.

Al 3.42; Fe 3.91; K 1.05; Pb

0.655; Na 0.425; Zn 0.476,

wt. %. As 115; Cd 75; Cr 403;

Cu 609; Ni 82; Se 27; U 5.5; V 140 pg/g. Non-certified

values are given for 26

elements

.

10
Certification Use Remarks

By atomic absorption spec- For primary calibration of Stability limited to 1 year

trometry and neutron activation. instruments and techniques and from date of purchase.

Use of blank samples is as a spike sample in method-ofnecessary. addition procedures for the

determination of Hg in natural

waters

.

Same as SRM 1641b. Same as SRM 1641b. Should be used without

dilution. For precautions

in use see Certificate.

At least two from the nine

analytical procedures employed were used for the determination

of each element.

For evaluating the accuracy of

trace element determination in

fresh water and for instrument

calibration.

The certification is valid

for two years from the

shipping date. For precautions in use see Certificate

.

Performed by two independent This SRM is intended to provide For further properties, use, analytical procedures. Con- accurate concentrations of the and stability, see Certificentrations for the three PAH three PAH. cate. at other temperatures (10-

30 °C) are given in the

Certificate

.

Six indepedent analytical procedures and 100 mg to 1 g of

sample were used for certification.

For calibration of apparatus and

methods used in the analysis of river sediments or similar

materials

.

For details on stability, use, and homogeneity, see Certificate. Data valid for 5 years

from date of purchase.

By 6 indepedent analytical For calibration of instrumen- Certified data valid for 5 procedures on 500 mg or more tation and evaluatin of years after date of shipping,

dried sample, using two to four analytical methods in sediments

different procedures for each and similar matrices,

element

.

On 100 mg or more of dried

sample using 9 independent

analytical procedures.

Calibration of apparatus and

evaluation of methods used in

the analysis of atmospheric

particulate matter and similar

matrices

.

Certification valid for 5 years from date of purchase,

for samples kept in the

original bottle at 10-30 °C in a desiccator and in dark.

11
Table 3. Comparative List of Chemical Elements for the SRM's Described in Table 2.

Analyzed Liquids and Solids

MULTI-ELEMENT

Concentrations

:

Values expressed as microgram per gram, except:

Weight Percent — % Nanogram per gram — italics

Parenthesis indicates elements not certified and given for information only.

SRM Type Unit Size Al Sb As Ba

1632b Trace Elements in Coal

(Bituminous) 75 g 0.855% (0.24) 3.72 67.5

1633a Trace Elements in Coal

Fly Ash 75 g 14.3% 6.8 145 (0.15%)

1634a Trace Elements in Fuel Oil 100 mL (0.12)

1635 Trace Elements in Coal

(Subbituminous) 75 g (0.32%) (0.14) 0.42

1643b Trace Elements in Water

(ng/g) 950 mL (49) 44 1645 River Sediment 70 g 2.26% (51) (66)

1646 Estuarine Sediment 75 g 6.25% (0.4) 11.6

1648 Urban Particulate 2 g 3.42% (45) 115 (737)

SRM Be Bi B Br Cd Ca C Ce

1632b (0. 17) 0 .0573 0. 204% 78. 11% (9)

1633a (12) 1 .00 1. 11% (180)

1634a (0.006) (<D (0 .002) (16)

1635 0 .03 (3.6)

1643b 19 (11) (94) 20

1645 10 .2 (2. 9%)

1646 (1.5) 0 .36 0. 83% (80)

1648 (500) 75 (55)

SRM Cs CI Cr Co Cu Eu F

1632b (0.44) (1260) (11) 2.29 6.28 (0.17)

1633a (11) 196 (46) 118 (4)

1634a (31) (0. 7) (0.3)

1635 2. 5 (0.65) 3.6 (0.06)

1643b 18. 6 26 21.9

1645 2. 96% 10.1 109 (0.09%)

1646 (3.7) 76 10.5 18 (1.5)

1648 (3) (0.45%) 403 (18) 609 (0.8)

SRM Ga Ge Hf H In I Fe La

1632b (0.43) 5. 07% 0.759% (5.1)

1633a (58) (8) 9.4%

1634a (31)

1635 (1.05) (0.29) 0.239%

1643b 99

1645 11.3% (9)

1646 (1.4) 3.35%

1648 (4.4) (1.0) (20) 3.91% (42)

12
Table 3. Continued.

SRM Pb Li Mg Mri Hg Mo Ni N

1632b 3.67 (10) 0.0383% 12.4 — (0.9) 6.10 1.56

1633a 72.4 — 0.455% 179 0.16 (29) 127

1634a 2.80 — — 0.19 (<0.002) (0.12) 29 1635 1.9 — — 21.4 — — 1.74

1643b 23. 7 — — 28 — 85 49

1645 714 — 0.74% 785 1.1 — 45.8

1646 28.2 (49) 1.09% 375 0.063 (2.0) 32 1648 0.655% — (0.8%) (860) 82

SRM P K Rb Sm Sc Se Si Ag_

1632b — 0.0748% 5.05 (0.87) (1.9) 1.29 (1.4%)

1633a — 1.88% 131 — (40) 10.3 22.8%

1634a — — — — — 0.15

1635 — — — — (0.63) 0.9

1643b — — — — — 9.7

1645 — 1.26% — — (2) (1.5)

1646 0.054% (1.4%) (87) — (10.8) (0.6) (31%)

1648 — 1.05% (52) (4.4) (7) 27 -- (6)

SRM Na Sr S Te Tl Th Ti W

1632b 0.0515% (102) 1.89% — — 1.342 0.0454% (0.48)

1633a 0.17% 830 (0.18%) — 5.7 24.7 (0.8%)

1634a 87 — 2.85%

1635 (0.24%) — 0.33% — — 0.62 (0.02%)

1643b — 227 — — 8.0

1645 0.54% — (1.1%) — 1.44 1.62

1646 (2.0%) — (0.96%) (0.5) (0.5) (10) (0.51%)

1648 0.425% — (5.0%) — -- (7.4) (0.40%) (4.8)

SRM U V Zn

1632b 0.436 (14) 11.89

1633a 10.2 297 220

1634a — 56 2.7

1635 0.24 5.2 4.7

1643b — 45.2 66

1645 1.11 23.5 0.172%

1646 — 94 138

1648 5.5 140 0.476%
Analyzed Liquids and Solids

SINGLE ELEMENT

SRM TvDe Unit Si76 Lead Sulfur MpfPI 1 T"\7 L Itr I L U L y

1579 Powdered Lead Base Paint 35 e 11 . 87%

1620a Sulfur JUll UL in111 Rp^i'Hii^l 1VCO lUUd J. T^npl 1 UC ii Oil I'll -L1 00VJ \J TTlT H . J W H /o 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 Residual Fuel Oil 100 mL 0.141%

1630 Trace Mercury in Coal 50 mg 0.13 yg/g

1641b Mercury in Water - yg/mL 120 mL 1.52 yg/mL

1642b Mercury in Water - ng/mL 950 mL 1.49 ng/mL

Element Nominal

SRM Type Certified Concentration No. Units

1636a Lead in Reference Fuel Pb 0.03, 0.05, 0.07, and 3 vials each

2.0 g/gal

1637a Lead in Reference Fuel Pb 0.03, 0.05, 0.07 g/gal 4 vials each

1638a Lead in Reference Fuel Pb 2.0 g/gal 12 vials

Organic Constituents

SRM Type Unit of Issue

1580 Shale Oil Set of 5-2 mL ampoules

1644 Polyaromatic Hydrocarbon Set of 3 columns

Generator Columns

SRM 1580 SRM 1644

Constituents (l-Jg/g) (Pg/kg)

Anthracene 30.7

Benzol a] anthracene 6.45

Benzo[a]pyrene 21 1.13

Benzo[e]pyrene 18

Fluoranthene 54

o-Cresol 385

Phenol 407

Perylene 3.4

Pyrene 104

2 , 6-Dimethylphenol 175

Benzo [f] quinoline 16
Appendix I.

Name SRM

Acetanilide 141c Acid Open-Hearth Steel, 0.2% Carbon 19G

Acid Potassium Phthalate 84j

AISI 1045 Steel 20g

AISI 4340 Steel 361 AISI 4340 Steel 1261a AISI 94B17 Steel (Modified) 362 AISI 94B 17 Steel (Modified) 1262a Albacore Tuna RM 50

Alkali Lead Silicate Glass 712 Alpha Quartz 1878 Alumina (Reduction Grade) 699 Alumina Silicate Glass 714

Aluminosilicate Glass 715 Aluminum Alloy 85B

Aluminum Alioy 601 1 (Modified) 858 Aluminum Alloy 601 1 (Modified) 1258 Aluminum Alloy 7075 859 Aluminum Alloy 7075 1259 Aluminum Block, Eddy Current 1860 Conductivity

Aluminum Block, Eddy Current 1861 Conductivity

Aluminum Block, Eddy Current 1862 Conductivity

Aluminum Block, Eddy Current 1863 Conductivity

Aluminum Brass Standard for 1118

Optical Emission and X-ray

Spectroscopic Analysis

Aluminum Brass Standard for CI 1 18 Optical Emission and X-ray

Spectroscopic Analysis

Aluminum Brass Standard for 1 1 19 Optical Emission and X-ray

Spectroscopic Analysis

Aluminum Brass Standard for CI 119 Optical Emission and X-ray

Spectroscopic Analysis

Aluminum Casting Alloy 356 855 Aluminum Casting Alloy 380 856 Aluminum Cube Ultra Purity R.M 1C

Aluminum 2-Ethylhexanoate 1075a

Name SRM

Aluminum, Freezing Point Standard 44f Aluminum, Magnetic Gram 763

Susceptibility

Aluminum Oxide, Melting Point 742 Aluminum Rod Ultra Purity RM 1R

Aluminum-26 Radioactivity Standard 4229

Americium-241 Alpha-Particle 4904F

Standard

Americium-241 Gamma-ray Standard 4213

Ammonium Dihydrogen Phosphate 194 Angiotensin I (Human) 998

Anisic Acid 142 Anticonvulsant Drug Level Assay 1599 Standard

Antiepilepsy Drug Level Assay 900

Standard

Antimony- 125-Tellurium- 125m, 4275B

Europium-154, Europium-155 MixedRadionuclide Point-Source Standard

Antimony- 125-Tellurium- 125m, 4276B

Europium-154, Europium-155 MixedRadionuclide Solution Standard

A.O.H., 0.4C Spectrographic Steel 413 Standard

Argillaceous Limestone 1C

Arsenic Trioxide Reductometric 83d

Standard

Assay-Isotopic Standard for Potassium 985

Assay-Isotopic Standard for Rhenium 989

Assay-Isotopic Standard for Silicon 990

Assay-Isotopic Standard for Strontium 987

2% Austenite in Ferrite 488

5% Austenite in Ferrite 485a

15% Austenite in Ferrite 486

30% Austenite in Ferrite 487

15
SRM

Austenitic Stainless Steel, Thermal 1460 Beryllium on Filter Media 2675 Conductivity and Electrical Bessemer Steel (Simulated) 8j Resistivity 0. 1 % Carbon

Austenitic Stainless Steel, Thermal 1461 Bilirubin 916

Conductivity and Electrical Bis(l -phenyl- 1, 3-butanediono) 1080a

Resistivity copper (II) Austenitic Stainless Steel, Thermal 1462 Bis(l -phenyl- 1, 3-butanediono) 1052b

Conductivity and Electrical oxovanadium (IV)

Resistivity Black Porcelain Enamel for Directional 2021 Barium Crown Glass 713 Hemispherical Reflectance Barium Cyclohexanebutyrate 1051b Black Porcelain Enamel for Directional 2022

Barrium-133 Radioactivity Point-Source 424 IB Hemispherical Reflectance Standard Blast Furnace Iron Standard 1143a Barium- 133 Radioactivity Standard 4251B (Chill Cast White)

Basalt Rock 688 Blast Furnace Iron Standard 1144a Base Oil 1083 (Chill Cast White)

Basic Electric Spectrographic Steel 404a B.O.H., 0.4C Spectrographic Steel 417a

Standard Standard

Basic Open-Hearth Steel, 0.1% Carbon 15g Boric Acid 951 Basic Open-Hearth Steel, 0.1% Carbon 335 Boron-Doped Silicon Slices for 1521

Basic Open-Hearth Steel, 0.1% Carbon 1228 Resistivity Measurements

Basic Open-Hearth Steel, 0.2% Carbon llh Borosilicate Glass 93a

Basic Open-Hearth Steel, 0.4% Carbon 12H Borosilicate Glass 623

Basic Open-Hearth Steel, 0.5% Carbon 152A Borosilicate Glass 717

Basic Open-Hearth Steel, 0.8% Carbon 14f Borosilicate Glass 1825

Basic Open-Hearth Steel, 1% Carbon 1227 Borosilicate Glass, Thermal Expansion 731 (Disk) Bovine Liver 1577a

Basic Open-Hearth Steel, 1.1% Carbon 16f Bovine Serum Albumin 926

Basic Open-Hearth Steel, 1.1% Carbon 337 Bovine Serum Albumin (7% Solution) 927

0.4C Basic Oxygen Furnace Steel 178 Branched Polyethylene 1476

Bauxite (Arkansas) 69b Brewers Yeast 1569 Bauxite (Dominican) 697 Bright Copper Microhardness 1894

Bauxite (Jamaican) 698 Standard

Bauxite (Surinam) 696 Bright Nickel Microhardness Standard 1895 Benzene in Nitrogen 1805 Bromobenzoic Acid 2142 Benzene in Nitrogen 1806 Burnt Refractory 76a Benzene Permeation Device 1911 Burnt Refractory 77a Benzoic Acid 140b Burnt Refractory 78a Benzoic Acid 350a Cadmium Cyclohexanebutyrate 1053a Benzoic Acid Calorimetric Standard 39i Cadmium, Vapor Pressure 746

Benzothiazyl Disulfide Rubber 373f Calcium Carbonate 915 Compound Calcium 2-Ethylhexanoate 1074a Beryllium-Copper Standard 1122 Calcium in Low-Alloy (Silicon) Steel 1254 Beryllium-Copper Standard C1122 Calcium Molybdate 71 Beryllium-Copper Standard CI 123 Calibrated Glass Beads 1004

Calibrated Glass Beads 1017a

Calibrated Glass Beads 1018a

Calibrated Glass Spheres 1003a Carbon Dioxide in Air 1670 Carbon Dioxide in Air 1671 Carbon Dioxide in Air 1672 Carbon Dioxide in Nitrogen 1674b Carbon Dioxide in Nitrogen 1675b Carbon Dioxide in Nitrogen 2619a

(Combustion Efficiency Gas Standard)

Carbon Dioxide in Nitrogen 2620a

(Combustion Efficiency Gas Standard)

16
mm

Name SRM

Carbon Dioxide in Nitrogen 2621a (Combustion Efficiency Gas Standard)

Carbon Dioxide in Nitrogen 2622a (Combustion Efficiency Gas Standard)

Carbon Dioxide in Nitrogen 2623a (Combustion Efficiency Gas Standard)

Carbon Dioxide in Nitrogen 2624a (Combustion Efficiency Gas Standard)

Carbon Dioxide in Nitrogen 2625a

(Combustion Efficiency Gas Standard)

Carbon Dioxide in Nitrogen 2626a (Combustion Efficiency Gas Standard)

Carbon Dioxide in Nitrogen (Mobile 2632 Source Emission Gas Standard)

Carbon Dioxide in Nitrogen (Mobile 2633 Source Emission Gas Standard)

Carbon Monoxide in Air (Ambient 2612a

Air Quality Gas Standard)

Carbon Monoxide in Air (Ambient 2613a

Air Quality Gas Standard)

Carbon Monoxide in Air (Ambient 2614a Air Quality Gas Standard)

Carbon Monoxide in Nitrogen 1677c Carbon Monoxide in Nitrogen 1678c Carbon Monoxide in Nitrogen 1679c Carbon Monoxide in Nitrogen 1680b Carbon Monoxide in Nitrogen 1681b Carbon Monoxide in Nitrogen (Mobile 2635 Source Emission Gas Standard)

Carbon Monoxide in Nitrogen (Mobile 2636 Source Emission Gas Standard)

Carbon Monoxide in Nitrogen (Mobile 2637 Source Emission Gas Standard)

Carbon Monoxide in Nitrogen (Mobile 2638 Source Emission Gas Standard)

Carbon Monoxide in Nitrogen (Mobile 2639 Source Emission Gas Standard)

Carbon Monoxide in Nitrogen (Mobile 2640 Source Emission Gas Standard)

Carbon Monoxide in Nitrogen (Mobile 2641 Source Emission Gas Standard)

Carbon Monoxide in Nitrogen (Mobile 2642 Source Emission Gas Standard)

Carbon- 14 Radioactivity Standard 4245

Carbon- 14 Radioactivity Standard 4246

Carbon Steel 1224 Carbon Steel, 0.6% 13 g

Cast Iron 4k

Cast Iron 5L

Cast Iron 6g

Cast Iron 7G

Cast Iron Car Wheel 122h

Cast Steel 3 CI 173 Cast Steel Standard H38a Cast Steel Standard 1139a

Name SRM

Catalyst Package for Lubricant 1817 Oxidation

Centerline Drawings for Optical 1901 Character Recognition, B

Characters Centroid Color Chart 2106

Centroid Color Kit 2107 Cesium- 137, Barium- 137m Point-Source 4200B

Radioactivity Standard

Cesium- 137, Barium- 137m Point-Source 4207

Radioactivity Standard

Cesium-137 Burn-Up Standard 4233B

Cesium- 134 Radioactivity Standard 4250B

Channel Black Rubber Compound 375g

Chlorine-36 Beta-ray Standard 4943

Chlorine-36 Radioactivity Standard 4422L

Chlorobenzoic Acid 2144 Chrome Refractory 103a Chromium-Molybdenum-Aluminum 106B

Steel Chromium-Molybdenum Steel 36b

Chromium-Molybdenum Steel 133B

Chromium-Nickel-Molybdenum Steel 139b Chromium-Nickel-Molybdenum Steel 1222 17Chromium-9 Nickel-0.2 Selenium Steel 339 Chromium-Nickel Spectrographic Steel 408a

Standard

1 5 Chromium-7 Nickel Steel 344 16Chromium-4 Nickel Steel 345 Chromium-51 Radioactivity Standard 4400L-F

Chromium Steel 163 Chromium-Tungsten Steel 155 Chromium-Vanadium Spectrographic 407a

Steel Standard

Cholesterol 911a

Chrysotile Asbestos Fibers 1876

Citrus Leaves 1572

Clinical Laboratory Thermometer 934

Cobalt Cyclohexanebutyrate 1055b Cobalt-Molybdenum-Tungsten Steel 153A

Cobalt-57 Radioactivity Standard 4408L-C

Cobalt-60 Radioactivity Standard 4915D

Commerical Bronze Standard for 1115 Optical Emission and X-ray

Spectroscopic Analysis

Commercial Bronze Standard for CI 1 15 Optical Emission and X-ray

Spectroscopic Analysis

Commercial Bronze Standard for 1116

Optical Emission and X-ray

Spectroscopic Analysis

17
Name

Commercial Bronze Standard for Optical Emission and X-ray

Spectroscopic Analysis

Commercial Bronze Standard for Optical Emission and X-ray

Spectroscopic Analysis

Commercial Bronze Standard for Optical Emission and X-ray

Spectroscopic Analysis

Common Lead Isotopic Standard

Copper Concentrate Copper Heat Capacity Test Specimen

Copper-Nickel-Chromium Cast Iron Copper Ore, Mill Heads

Copper Ore, Mill Tails Copper-Thermal Expansion

Copper, Secondary Freezing Point Standard

Cortisol (Hydrocortisone)

Creatinine Cr-Mo Low Alloy Steel Cr-Mo Steel (ASTM A-213)

Cr-Mo (SAE 4140) Spectrographic

Steel Standard

Cr-Mo (SAE 4150) Spectrographic

Steel Standard

Cr-Mo (SAE X4130) Spectrographic

Steel Standard

Cr-Ni-Mo Steel (AISI 8620)

18Cr-10Ni Steel (AISI 304L)

Cr-V Steel (Modified)

Cr-V Steel (Modified)

Cr-V Steel (SAE 6150)

Crystalline Potassium Dichromate

Crystalline Potassium Iodide,

Heterochromatic Stray Radiant

Energy Standard

Crystalline (Ruby) Electron Paramagnetic Resonance

Absorption Intensity Standard

Cupro-Nickel (CDA 706)

Cupro-Nickel (CDA 715)

Cupro-Nickel, 10% (CDA 706) Doped

SRM Nsiiiic CDU

CI 1 16 Cupro-Nickel, 10% (CDA 706) High 874

Purity

Cystine 143c

1117 Dextrose 41b

D-Glucose 917

Dibutyltin Bis(2-ethylhexanoate) 1057b CI 1 17 Didymium Glass Filter for Checking 2009

the Wavelength Scale of Spectrophotometers

981 Didymium Glass Fitler for Checking 2010

332 the Wavelength Scale of RMS Spectrophotometers

115A Disodium Hydrogen Phosphate 18611c 330 Disodium Hydrogen Phosphate 2186II

331 D-Mannitol 920

736a Dolomitic Limestone 88a 45d Doped Platinum 681L1

Doped Platinum 681L2

921 Ductile Cast Iron 341 914 Electrical Residual Resistivity Ratio 769

1270 Standard

291 Electrolytic Iron 365 414 Electrolytic Iron 1265a

Electrolytic Iron, Thermal 1463 427 Conductivity and Electrical

Resistivity

418a Electrolytic Iron, Thermal 1464 Conductivity and Electrical 293 Resistivity lOlf Electronic and Magnetic Alloy 1159 363 Standard

1263a Electronic and Magnetic Alloy 1160

30f Standard

935 Enriched Boric Acid 952 2032 Equal-Atom Lead Isotopic Standard 982

Estuarine Sediment 1646 Europium- 152 Point-Source Standard 4218E

2601 Europium- 152 Radioactivity Standard 4370B

Extra Dense Lead Glass 709 Fe-Cr-Ni Alloy Microprobe Standard 479a

1275 Fe-3Si Alloy Microprobe Standard 483

1276 Feldspar 70a

875 Feldspar 99a

Ferrochromium (Low Carbon) 196 Ferrochromium Silicon 689

Ferroniobium 340

Ferrophosphorus 90

Ferrosilicon 58a

Ferrosilicon 59a

Ferrosilicon (75% Si) 195

First Surface Aluminum Mirror for 2003a

Specular Reflectance

First Surface Mirror, Gold on Glass 2008a

18
Name SRM

Fission Track Glass Standard Vo 1 Fission Track Glass Standard 962a

1—> * T 1 s~~i 1 o t J J Fission Track Glass Standard 963a

Fission Track Glass Standard 964

Flint Clay 97a Fluorobenzoic Acid 2143

Fluorspar 79a

Free-Cutting Brass 1 103 Free-Cutting Brass CI MJ4 Freeze-Dried Urine 2670

Freeze-Dried Urine Certified zo / la for Fluoride

Freeze-Dried Urine Certified 2672a

for Mercury

Fused-Silica Thermal Expansion 739 Gadolinium-148 Alpha-Particle 4907

Standard

Gallium Melting-Point Standard 1968 Gallium-67 Radioactivity Standard 4416L-D

Gas Furnace Black Rubber Compound 382a Gasometnc Set (1095- 11)99) 1089 Gasometric Standard for Unalloyed 35 / Zirconium

Gasometric Standard for Unalloyed i 58 Zirconium

Generator Columns for Polynuclear 1 044 Aromatic Hydrocarbons

Gilding Metal 111")

1 1 1 Z vjiiuing ivieiai C 1 1 1

~) 1 1 1 z Gilding Metal 1111 1 1 1 J onuing ivieiai C 1 1 1 3 Gilding Metal 1 1 1 *T Gilding Metal C 1 1 1

4

1 1 It Glasses for Microchemical Analysis 1 0 / 1 Glasses for Microchemical Analysis 1872 Glasses for Microchemical Analysis 1

8

15 Glasses for Microchemical Analysis 1874

Glasses for Microchemical Analysis 1875 Glass Fibers for Microanalysis KM j 1 Glass Filter for Transmittance zUJU Measurement

Glass Filters for Spectrophotometry 930D

Glass Fluorescence Source 477

Glass Sand 81a Glass Sand 165a Glass Spheres 1019a Gold Coating on Glass Sealing Alloy 1398a Gold Coating on Nickel 1379 Gold Coating on Nickel 1380 Gold Coating on Nickel 1399b Gold-Copper Wires for Microprobe 482

Analysis

Gold-195 Radioactivity Standard 442 1L

Name SRM

Oold-198 vJ w I'll > i\Radioactivity uu I v Standard

y

cx V— ii v iii i i 1 1 i 1 1 1 1 i i i 4405 L-B

ol c\ 1 vpr \A/i rp*. for \A i < * rnnrnhp 481 A n n 1 v^i<; CinlH \ M MU, Vanor T UUWI Pressure A 1 ^(IilUl \_ 745 Hrav f^a^t Iron 334 Halocarbons (in methanol) for Water 1639

/ \ i lai y Hiuh Allov Steel (A-743^ C1288

High-Alloy Steel (AISI 310 Mod.) C1287

Hiph-Allov Steel (AISI 414 Mod ) C1289

High-Alloy White Cast 892 Hioh-Allnv White Cast Iron 890 High-Alloy White Cast Iron 891

HicrVi 1 1 1 ti 1 1

- Parhnn \_. C*l UvJlI Fprrnrhrnmuim 1 CllVJV^IIICIllllilll 64c

I 1 1 ii 1 1 V_, CI 1 U\J 1 1 1 tlI.CJDIClllfciclllv.«JV,. 68c

T-Ticrh-f i i IK' arhnn Stppl ^ N/foHifipH 1

I v- ill hum JitLi ^ivicuiiicuy 364 Hicrh.Carhon Stppl (Modified"! 1264a

T-Ticrri flraHp Fl i inrcna

r

I 1 Itil 1 -VJ 1 due 1 1UU1 JLlclI 180 nigi i- i^t ic kci oicci 1 zuc

Jllgll-l^UCKCI olCCl 1 1 Jo

Mit?h-Piiritv Oold 685 HI llclll i crh -Puri III 11t v\ Platinum 1 IdllllUlll 6801 1

A

UOU1 i / v

1Hicxh-Piiritv llgll l 1 1 1 1 l V Platinum 1 1C11111U111 6801 K) (J W 1—. z.2Aj\ ixigii-r uruy i laiiiiuiii i iici iiiucici iicii

i

1

I Qf\l "D / Hicrti Pnritv 7mp 682

T-Iicjti Silicon ^xtppl 179

Mirrn Vv|ln^(^r^ ^faf}]

1 1 l&l 1 Oil ILUI I JlCCl 1 134

1—OT i o Vi ^xilir^on >^t^p| Ig 1 1 -Ol 1 ILUI 1 OlCCl 11

11 J35J Wioti i 11 1 L; I 1 ^ilif^z-vi-i

.

I 1 1 1 1 * M 1 Cfppl OlCCl f\ Pfllrnim V^dlCl U 1 1 1 Rpanncr^ IK dl III L / 125b

1-lirrVi riign-ouiiur Sulfur oieei <stppl ii nsyjj

Hirrl-i Sulfur Ct^^.1 riign-ouiiur oieei 1 Z7L

HioVi nigii-oun Sulfurui Stppl oieei 1 1 JU nign i emperaiure /\uuy rvzoo J to High Temperature Alloy M308 11

11 Q7y 1 oi^n r-Iiftri 1

1 pinnprQliirp cmpel dl U 1 c Avnuy \ llo\7 LUUJ I rillS allU ann oil *\1 1QQyy CO 1 £ High-Temperature Alloy 1206-2 High-Temperature Alloy 1207-1 High-Temperature Alloy 1207-2 High-Temperature Alloy 1208-1 High-Temperature Alloy 1208-2 Homogeneous River Sediment for RM 45B

Radioactivity Measurements Human Liver, Environmental 4352

Radioactivity

Human Lung, Environmental 4351

Radioactivity

Human Serum 909

19
Name

Hydrogen in Unalloyed Titanium

Hydrogen in Unalloyed Titanium

Hydrogen in Unalloyed Titanium

Hydrogen in Unalloyed Titanium

Hydrogen-3 Radioactivity Standard

Hydrogen-3 Radioactivity Standard

Hydrogen-3 Toluene Radioactivity

Standard

4-Hydroxy-3 methoxy-DL-mandelic

Acid (VMA)

ICTA High Temperature Set

Differential Thermal Analysis

ICTA Low Temperature Set Differential Thermal Analysis

ICTA Mod Temperature Set Differential Thermal Analysis

ICTA Mid Temperature Set Differential Thermal Analysis

ICTA Polystyrene Differential Thermal Analysis

ICTA Thermogravimetry Set Incoloy, 901 and Hastelloy X

Inconels, Alloy 600 (Chips)

Inconels, Alloy 600 (Solid)

Inconels, Alloy 625 (Chips)

Inconels, Alloy 625 (Solid)

Incoloy, Alloy 800 (Chips)

Incoloy, Alloy 800 (Solid)

Incoloy, Alloy 825 (Chips)

Incoloy, Alloy 825 (Solid)

Indium-Ill Radioactivity Standard

Ingot Iron Spectrographic Steel Standard

Intermediate Purity Selenium

Intermediate-Purity Zinc

Iodine- 123 Radioactivity Standard

Iodine- 125 Radiactivity Standard

Iodine- 129 Radioactivity Standard

Iodine-131 Radioactivity Standard

Iron Foil Mossbauer Standard

Iron-55 Low-Energy Photon Standard

Iron Metal (Clinical Standard)

Iron Ore (Labrador)

Iron Ore (Nimba)

SRM Name SRM

352b Iron Ore (Sibley) 27f 1086 Iron Ore Concentrate (Canada) 690

1087 Iron-59 Radioactivity Standard 4411 LB

1088 Isobutylene-Isoprene (Butyl) Rubber 1495 4361 Isobutylene-Isoprene (Butyl) Rubber 388L

4926C Isotopic Standard for Bromine 977

4947 Isotopic Standard for Chlorine 975

Isotopic Standard for Chromium 979

925 Isotopic Standard for Copper 976

Isotopic Standard for Magnesium 980

GM 760 Isotopic Standard for Silver 978

Krypton-85 Gaseous Radioactivity 4308C

GM 757 Standard

Krypton-85 Radioactivity Standard 4235

GM 759 Krypton-85 Radioactivity Standard 4935C

Lead-Barium Glass 89 GM 758 Lead-Base Bearing Metal 53e Lead-Base Bearing Metal 1132 GM 754 Lead Cyclohexanebutyrate 1059c Lead in Reference Fuel 1636a GM 761 Lead in Reference Fuel 1637a

SI 198 Lead in Reference Fuel 1638a 864 Lead Nitrate 928

1244 Lead on Filter Media 2674

865 Lead-203 Radioactivity Standard 4420L

1245 Lead, Secondary Freezing Point 49e

866 Standard

1246 Lead-Silica Glass 1827 867 Lead-Silica Glass (Viscosity) 711 1247 Lead-Silica Glass for dc Volume 624

4417L-C Resistivity

420a Lead-Silica Glass for Dielectric 774

Constant

726 Lead 206 Spike Assay and Isotopic 991 728 Solution Standard

4414L-C Leaded-Tin Bronze Alloy 1035 4407L-H Light-Sensitive Paper 700d

4949 B Light-Sensitive Paper 701d

4401 L-I Light-Sensitive Plastic Chip 703

1541 Linear Polyethylene 1475 4260C Linear Polyethylene 1482 937 Linear Polyethylene 1483 692 Linear Polyethylene 1484 693 Linerboard, Standard for Tape 1810 Adhesion Testing

Liquid Absorbance Standard for 931c

Ultraviolet and Visible Spectrophotometry

Lithium Carbonate 924

Lithium Ore 181 Lithium Ore 182 Lithium Ore 183 Low-Alloy Steel, (AISI 4130) 1225 Low Alloy Steel Low Alloy Steel (A242 Mod.) C1285

Low-Alloy Steel, AISI 4130 72g

Low Alloy Steel (AISI 1526, Modified) 1269 Low-Alloy Steel (Hy 80) 1286

20
N3IT1© SRM Nflm6 SRM

Low-Alloy Steel Set (661-665) S668 Naval Brass Standards for Optical 1108 Low-Carbon Silicon Steel 131c Emission and Spectroscopic

Low-Carbon Silicon Steel 1036 Analysis

Low-Carbon Stainless Steel (AISI 166c Naval Brass Standards for Optical C1108

316L) Emission and Spectroscopic

Magnesium-base Alloy 171 Analysis

Magnesium Cyclohexanebutyrate 1061c Neutral Glass 716 Magnesium Gluconate Dihydrate 929 Neutron Density Monitor Wire 953 Magnetic Coating on Magnetic 1365a Nickel-Chromium Cast Iron 82b

Substrate (Nickel on Steel) Nickel-Chromium-Molybdenum Cast Iron 107C

Magnetic Coating on Magnetic 1366a Nickel-Chromium Steel 32E

Substrate (Nickel on Steel) Nickel-Copper Alloy 882 Magnetic Coating on Non-Magnetic 1367a Nickel Cyclohexanebutyrate 1065b

Substrate (Nickel and Chromium Nickel Oxide, No. 1 671 on brass Nickel Oxide, No. 2 672 Magnetic Tape, High Density 6250 Nickel Oxide, No. 3 673 Manganese Fluoride, Magnetic Gram 766 Nickel-63 Radioactivity Standard 4226

Susceptibility Nickel Silver (CDA 762) 879 Manganese Ore 25d Nickel Siver (CDA 770) 880 Manganese-54 Point-Source 4997E Nickel Spectrographic Steel Standard 409b

Radioactivity Standard Nickel Sphere, Magnetic Moment 772 Manganese-54 Radioactivity Standard 4257 Nickel Steel 33d

Manganese Steel 100B Ni-Cr-Mo-V Steel 1173 Manganous Cyclohexanebutyrate 1062b Nicotinic Acid 148 Maraging Steel 1156 Niobium-94 Gamma-ray Standard 420 IB

Metal on Quartz Filters for 2031 Nitric Oxide in Nitrogen 1683b Spectrophotometry Nitric Oxide in Nitrogen 1684b Metals on Filter Media 2676b Nitric Oxide in Nitrogen 1685b Methane in Air 1658a Nitric Oxide in Nitrogen 1686b Methane in Air 1659a Nitric Oxide in Nitrogen 1687b Methane in Air 1660a Nitric Oxide in Nitrogen (Mobile 2627 Medium Manganese Spectrographic 405a Source Emission Gas Standard)

Steel Standard Nitric Oxide in Nitrogen (Mobile 2628 Mercaptobenzothiazole 383a Source Emission Gas Standard)

Mercury, Freezing Point 743 Nitric Oxide in Nitrogen (Mobile 2629

Mercury-203 Radioactivity Standard 441 8L Source Emission Gas Standard)

Mercury in Water, /xg/mL 1641b Nitric Oxide in Nitrogen (Mobile 2630

Mercury in Water, ng/mL 1642b Source Emission Gas Standard)

Microcopy Resolution Test Chart 1010a Nitric Oxide in Nitrogen (Mobile 2631 Microprobe Standard - Cartridge Brass 478 Source Emission Gas Standard)

Mineral Glasses for Microanalysis 470 Nitrogen Dioxide in Air (Stationary 2653 Molybdenum Concentrate 333 Source Emission Gas Standard)

Molybdenum, Heat Capacity 781 Nitrogen Dioxide in Air (Stationary 2654

Molybdenum-99 Radioactivity 4412L-H Source Emission Gas Standard)

Standard Nitrogen Dioxide in Air (Stationary 2655 Molybdenum-Tungsten-Chromium- 134A Source Emission Gas Standard)

Vanadium Steel Nitrogen Dioxide in Air (Stationary 2656

Naval Brass Standards for Optical 1106 Source Emission Gas Standard)

Emission and Spectroscopic Nitrogen Dioxide Permeation Device 1629a

Analysis 4-Nitrophenol 938 Naval Brass Standards for Optical CI 106 Emission and Spectroscopic

Analysis

Naval Brass Standards for Optical 1107 Emission and Spectroscopic

Analysis

Naval Brass Standards for Optical CI 107 Emission and Spectroscopic

Analysis

21
Name

Nodular Cast Iron Nominal One Micrometer Polystyrene

Spheres Non-Fat Powdered Milk

Nonmagnetic Coating on Magnetic

Substrate (Copper and Chromium

on Steel) Nonmagnetic Coating on Magnetic

Substrate (Copper and Chromium

on Steel) Nonmagnetic Coating on Magnetic

Substrate (Copper and Chromium

on Steel) Nonmagnetic Coating on Magnetic

Substrate (Copper and Chromium

on Steel) Nonmagnetic Coating on Magnetic

Substrate (Copper and Chromium

on Steel) Nonmagnetic Coating on Magnetic

Substrate (Copper and Chromium

on Steel) NPL GM Alpha Alumina

NPL GM Alpha Alumina

NPL GM Alpha Alumina

NPL GM Alpha Alumina

NPL GM Graphitized Carbon Black

NPL GM Graphitized Carbon Black

NPL GM Melting Point Set NPL GM Non-porous Silica NPL GM Non-porous Silica N-tertiary-Butyl-2-benzothiazolesulfenamide Rubber Compound

Obsidian Rock

Octaphenylcyclotetrasiloxane

Oil Furnace Black Rubber Compound

Opal Glass Powder

Optical Emission and X-ray

Spectroscopic Analysis

Optical Microscope Linewidth Measurement Standard

Optical Microscope Linewidth

Measurement Standard

Optical Microscope Linewidth

Measurement Standard

SRM Name SRM

342a Organics in Shale Oil 1580 1690 Oxalic Acid 4990C

Oxygen in Ferrous Materials 1090

1549 Ingot Iron 1359 Oxygen in Ferrous Materials 1091

(Stainless Steel AISI 431)

Oxygen in Ferrous Materials Vacuum 1092 1360 Melted Steel Oxygen in Maraging Steel 1094 Oxygen in Nitrogen (Gas Standard) 2657

1361b Oxygen in Nitrogen (Gas Standard) 2658 Oxygen in Nitrogen (Gas Standard) 2659 Oxygen in Titanium-Base Materials 355 1362a Oxygen in Valve Steel 1093 Oyster Tissue 1566

Palladium, Magnetic Gram 765

1363a Susceptibility Penetrant Test Block 1850 Peruvian Soil, Environmental 4355

1364a Radioactivity

Petroleum Crude Oil 1582 Phosphate Rock (Florida) 120b 8005 Phosphor Bronze (CDA 521) 871 8006 Phosphor Bronze (CDA 544) 872 8007 Phosphorized Copper, Cu VIII C1251

8008 Phosphorized Copper, Cu IX C1252

8001 Phosphorized Copper, Cu X C1253

8002 Phosphorus-32 Radioactivity Standard 4406L-G

8000 Photographic Step Tablet 1008 8003 Pine Needles 1575 8004 Plastic Clay 98a 384d Platinum, Magnetic Gram 764

Susceptibility 278 Plutonium-238 Alpha-Particle Standard 4906B

1066a Plutonium-240 Alpha-Particle Emission- 4338

378b Rate Solution Standard

91 Plutonium-239 Alpha-Particle Solution 4331

1102 Standard

Plutonium-242 Alpha-Particle Solution 4334B

474 Standard

Plutonium Isotopic Standard 946

475 Plutonium Isotopic Standard 947 Plutonium Isotopic Standard 948

476 Plutonium Metal 949f Plutonium Metal (Standard Matrix 945

Material)

Plutonium-244 Spike Assay and 996

Isotopic Standard

Polychlorinated Biphenyls in Oil 1581

Polycrystalline Alumina Elasticity 718 Standard

Polyester Plastic Film for Oxygen 1470 Gas Transmission

Polyisobutylene Solution in Cetane 1490 Polystyrene 1478 Polystyrene 1479 Polystyrene (Broad Molecular Weight) 706

Polystyrene (Narrow Molecular 705 Weight)

Polystyrene Spheres 1691 Portland Cement (Black) 1880

22
Name

Portland Cement (Blue) Portland Cement (Clear) Portland Cement (Gold)

Portland Cement (Green)

Portland Cement (Pink) Portland Cement (Red)

Portland Cement (White)

Portland Cement (Yellow)

Portland Cement Fineness Standard

Potassium Chloride

Potassium Chloride (Clinical Standard)

Potassium Chloride (Primary

Chemical)

Potassium Chloride for Solution Calorimetry

Potassium Dichromate

Potassium Dihydrogen Phosphate

Potassium Dihydrogen Phosphate

Potassium Dihydrogen Phosphate

Potassium Erucate

Potassium Feldspar

Potassium Fluoride

Potassium Hydrogen Phthalate Potassium Hydrogen Tartrate Potassium Iodide with Attenuator

Potassium Nitrate Potassium Tetroxalate Powdered Lead Based Paint

Priority Pollutant Polynuclear

Aromatic Hydrocarbons (in Acetonitrile)

Propane in Air

Propane in Air

Propane in Air

Propane in Air

Propane in Air

Propane in Nitrogen (Mobile Source

Emission Gas Standard)

Propane in Nitrogen (Mobile Source

Emission Gas Standard)

Propane in Nitrogen (Mobile Source

Emission Gas Standard)

Propane in Nitrogen (Mobile Source

Emission Gas Standard)

Propane in Nitrogen (Mobile Source

Emission Gas Standard)

Propane in Nitrogen (Mobile Source

Emission Gas Standard)

Propane in Nitrogen (Mobile Source

Emission Gas Standard)

Propane in Nitrogen (Mobile Source

Emission Gas Standard)

Propane in Nitrogen and Oxygen

(Mobile Source Emission Gas

Standard)

Propane in Nitrogen and Oxygen

(Mobile Source Emission Gas

Standard)

Quartz Cuvette for Spectrophotometry

Quartz for Hydrofluoric Acid

Solution Calorimetry

SRM Name SRM

635 Quartz on Filter Media 2679a

639 Quinine Sulfate Dihydrate 936

634 Radiogenic Lead Isotopic Standard 983

638 Radium-226 Gamma-ray Standard 4956

637 Radium-226 Gamma-ray Standard 4957

633 Radium-226 Gamma-ray Standard 4958

1881 Radium-226 Gamma-ray Standard 4959

636 Radium-226 Gamma-ray Standard 4960

114n Radium-226 Gamma-ray Standard 4961 2202 Radium-226 Gamma-ray Standard 4962

918 Radium-226 Gamma-ray Standard 4963

999 Radium-226 Gamma-ray Standard 4964B

Radium Standard (Blank Solution) 4952B

1655 Radon-226 for Radon Analysis 4953C

Red Brass 1109 136d Red Brass C1109

200 Red Brass 1110

1861c Red Brass CI 1 10 21861 Red Brass 1111 1076 Red Brass Cllll

607 Reduced Iron Oxide 691 2203 Reference Fuel Isooctane 1816a

185e Reference Fuel n-Heptane 1815a

188 Reflection Step Tablet 2061 2033 Refractive Index Glass 1820

193 Refractive Index Silicone Liquids 1823

189 Refractive Index, Soda-Lime Glass 1822

1579 Relative Stress-Optical Coefficient 708

1647 Glass Resulfurized-Rephosphorized Steel C1221

Rice Flour 1568 1665b River Sediment 1645 1666b River Sediment, Environmental 4350B

1667b Radioactivity 1668b Rocky Flats Soil Number 1, 4353

1669b Environmental Radioactivity

2643 Rubidium Melting Point 1969

Rutile Ore 670

2644 Scanning Electron Microscope 484c

Magnification Standard

2645 Scanning Electron Microscope 2069 Performance Standard

2646 Secondary Standard Flexible Disk 3210

Cartridge (Computer Amplitude

2647 Reference)

Secondary Standard Magnetic Tape 3200

2648 Secondary Standard Magnetic Tape 1600

Cassette 2649 Secondary Standard Magnetic Tape 3216

Cartridge (Computer Amplitude

2650 Reference)

Second Surface Aluminum Mirror for 2023

2651 Specular Reflectance

2652

932

1654

23
Name SRM Name SRM

Second wV- VWI I\J Surface HI lUWv tAluminum k 1 Ullllll Ulll Mirror 1V1 1 1 1 V. } I for 1 \J 1 ijUUa-Lll I1C Ol ICC I VJ lass 1 o J l Specular Reflectance ^od OUUan -TM—,11imp1 It vjlllV-d 1 icn (~r vJlaod \ qcc Second WV- V-V-'l 1 VJ Surface <J U 1 IdtV. 1Aluminum V 1UI11I11U111 IV1II \4irrr\r 1 K.) 1 u/ith W 1 L 1 1 OUUa \nna ILlllIC imp OIUCu ^ilir*n lUcicc VJltlJO 710

Wedee for Sneeular Reflectance vJUUu Sod a - Tl.llimeI 1 L ill ^i 1MCtl \czi C~v V 1

1

1 ii>> for IUI I1 . inmHnc 1 U U1U Uj 773 Selenium-Bearing Steel 1 1 70h 1 C 1 1 1 L/C 1 alUI C Selenium-75 Radioactivity Standard 4409 L-D Sodium Bicarbonate 191a Sheet Brass 37E Sod ouu 1 1 1 m Rir*?! rhnn cttf*

I

uiii UlLai uuiidic 7191

Silica Brick 1 987 O Sod iJUUIUlll 1 1 ) m Ca rhortn tf* V. il 1 lH'lltilL 19?a 1 7id

Silica Brick 199 Sodium Carhonate 2192

Silicon- Aluminum Alloy 87a Sodium Chloride 2201

Silicon Rrnn7p 1 Jo/A ^od O 1 1 1 m Cri 1 ondp ( Cl i mr*^! StanHa rH ^ V. 1 Li 1 U 1 1 1 V HUM IUL \V II1IILJ1 OltlllVJillU/ 919

Silicon kJIUV^Vll Densitv I / V. 1 1 1 1 1 \ Standard U till Kill 1 U 1 840 Sodium iJV/U 1UII1 Cvclohexanehut V_ \ V- 1 V ' 1 IV. AUIIV L/Ul vrate V 1 mv. 1069b

Silicon Density Standard 1 841 Sodium Oxalate Reductometric 40h

Si I icon Metal Standard

Silicon Powder, Spacing Standard 640a Sodium Pyruvate 910

for X-ray Diffraction Sodium Tetraborate Decahydrate 187b

Silicon Power Device Level 1522 (Borax)

Resistivity Standard Solder 127b

Silicon Resistivity Standard for Eddy 1523 Solder 1131

Ciirrent Testers Special Nuclear Container DOT 6M, 9940

Silver 2-Ethylhexanoate 1077a 15 gal. Silver-Crold Thermoconnle Wire 733 Special Nuclear Container, 55 gal. 9941

Silver Vanor Pressure / to Special Nuclear Container Type A, 9942

Sintered and Arc-Cast Tnnpsten 1465 10 gal. Thermal * uv.1 iiiui C^onductivitv >— v' i luuv-ii v ii y and ul 1 vi Special Nuclear Container, Type A, 9943

Electrical Resistivity 55 gal. Sintered iJllllCl V.U and til 1 U /Arc-Cast V I V_ >— A3 I Tungsten 1 UllgQtdlj 1466 Special Nuclear Material Package 9910

Thermal Conductivity and Spectrographs Ingot Iron and 461

Electrical Resistivity Low-Alloy Steel Standard (Rod)

Sintered and Arc-Cast Tnnpsten 1467 Spectrographs Ingot Iron and 462

Thermal Conductivity and Low-Alloy Steel Standard (Rod)

Electrical Resistivity Spectrographs Ingot Iron and 463

Sintered and Arc-Cast Tungsten, 1468 Low-Alloy Steel Standard (Rod)

Thermal * iiv.1 inui Conductivity V- vii iu uv. ii v 1 1 y and ul iu Spectrographs Ingot Iron and 464

Flectrical *—' 1 v»V— 11 1 V_ cl 1 RIN. esistivitv L 1 1 M 1 V IIV *Low-Allov —- v v i v i ivy y Steel kjiv,v,i oStandard tui 1 viui vi fRod^ i i\ v^7 VJ > Smoke ' i i i v ' i\ v_ Densitv I—'V. i i.ii i y Chamber V.'llulllUvl Standard tJlullUill U 1007a Spectrographs Ingot Iron and 465

fFHaminP \* IClllllllg Fxnosnre 1—* ApUjUl V. Condition^ V^vM 1VJ1 1 IUI 1 / Low-Allov Steel Standard (Rod 1* Smoke Densitv Chamher 9tanHarH Snectropranhic kjpv,v.ii Utl uplllL lllgUl Incrnt Iron 11 Ull and til 1

U

466

[Nntl - fl a mt n o P y nnti i rp f""

1 c\r\f\\i\r\r\\ \1 1UI1 1 I H 1 1 1 1 1 1 1-, LAUUjUIC V_v_H1L1 1 L IvJIl 1 Ii^vjow-Allnv w i v 1 1 w y Steel oIV.V. I kjlullUal StanrlarrlU rRr>H"> V, ivuu J Soda-T ime Container Olass 6? 1 Snectropranhic kJUVV u ugi upuiv Tnpot 1IICVJI Iron 11 V/ll and UUU 467

Son - T i mc Pint f"»lQcc 6?D T ow-AIlov w - r\. n\jy Steel oiCCi Standard O id I Ida 1 U fRod^ ^IVvJU ) Soda-l imp Float Olass 1830 Snectroi? kJI'VV 11 V'L,Iranhic UI'MIV Inpot 1 I 1 . ' 1 Iron I 1 \J 1 1 and UllVi 468

^nd n - T i m frl acc 1 876 TL^KJow-Allov w - /-vi iuy Steel O ICC1 Standard O Id 1 lUtll Ll fRnd^ \^ I\UU ) Soda-I ime Olass Powder 92 Snectroprahic i M 'V V. 1 1 V<L,I Ul Tnpot llllfc^V't Iron 11 1 V ' I 1 and Ul IU 1 166

tju \ ow/.Allov wrviiuy olcci Steel Standard oiaiiuaiu Snectropranhic Stainless Steel 442

Standard

Snectropranhic Stainless St^f^l 443

Stii . T lil nH1 KJtifx rH1 Ll Snectropranhic >L L l 1 V >L,I Uj 'I 1 1L Stainless O Ull 1 1 It >.i Steel OICCI 444

Standard

Spectrographic Stainless Steel D849

Standard (Disc)

Spectrographic Stainless Steel D850

Standard (Disc)

Spectrographic Stainless Steel 445

Standard (Group II)

24
Name SRM Name

opecirogrdpnic oiainiess steel AAK 440 Spectroscopic Titanium-Base Standard

Standard (Group II) Spectroscopic Titanium-Base Standard

Spectrographic Stainless Steel A A 7 44 / Spectroscopic Titanium-Base Standard

Standard (Group II) Spheroidized Iron Carbide in Ferrite Spectrographic Stainless Steel 440 AA Q Spreading Resistance Calibration Standard (oroup 11) (100) n-Type Silicon Spectrographic Stainless Steel A A Ci 449 Spreading Resistance Calibration standard (Oroup 11) (100) p-Type Silicon Spectrographic Stainless Steel 450 Spreading Resistance Calibration Standard (Group II) (111) n-Type Silicon Spectrographic Stainless Steel s4y Spreading Resistance Calibration

C*-^ »-» A n *-A fD nA\ Standard (Kod) (111) p-Type Silicon Spectrographic Stainless Steel 850 Stabilized Wine

Standard (Kod) Stainless Steel Spectrographic Steel Standard (Disc) D803a Stainless Steel Spectrographic Steel Standard (Disc) DoU/a Stainless Steel Spectrographic Steel Standard (Rod) 8U3a Stainless Steel (AISI 446)

Spectrographic Steel Standard (Rod) oU4a Stainless Steel (AISI 446)

Spectrographic Steel Standard (Kod) 805a Stainless Steel, 13% Chromium

Spectrographic Steel Standard (Rod) 80 /a Stainless Steel, Cr-Ni

Spectrographic Steel Standard (Rod) 8U8a Stainless Steel, Cr-Ni

Spectrographic Steel Standard (Rod) oUVa Stainless Steel, Cr-Ni

Spectrographic Steel Standard (Rod) 0 1 7U olio Stainless Steel, Cr-Ni

Spectrographic Steel Standard (Rod) 8 7f\o szua Stainless Steel, Cr-Ni

Spectrographic Steel Standard (Rod) 87 1 8/

1

Stainless Steel, Cr-Ni

Spectrographic Steel Standard (Rod) 877 OZ / Stainless Steel, Cr-Ni

Spectrographic Tool Steel Standard 4 JO Stainless Steel, Cr-Ni

opct s rti^r* 1 rr r Q t-» Vi 1 /"» 1 V-,i-\l stool 5ton/1ifn II Ogl apiUC 1 (JUl olccl olallUdlU A.T.1 HO / Stainless Steel, Cr-Ni-Mo

Spectrographic Tool Steel Standard 418 4 jo Stainless Steel, Cr-Ni-Nb

Qnppt rn o vc\ nti ir* Tool ^tRol ^*-rt n(-lof-H 439 Stainless Steel, Cr-INi- 1 i Spectrographic Tool Steel Standard AAC) 44U Stainless Steel for Pitting or Crevice

Spectrographic Tool Steel Standard AA44 11 Corrosion

Spectrographic Tool Steel Standard OJ / Stainless Steel Thermal Expansion

Spectrographic Tool Steel Standard 8o4UAO Stearic Acid Rubber Compound

Spectrographic Tool Steel Standard UoJ / Oj. 1 / A T O T 1 1 1 \ Steel (AISI 1211)

(DISC) Steel (Lead-Bearing)

Spectrographic Tool Steel Standard LJ84U Strontium Cyclohexanebutyrate

(DISC) Strontium-85 Radioactivity Standard

Spectrographic Tool Steel Standard r*84

1

D84 1 Strontium-89 Radioactivity Standard

(Disc) Styrene-butadiene Rubber (Type 1500)

Spectrographic Zinc-Base Die-Casting £7 £ OZ J Succinonitrile Freezing Point Alloy A Sucrose

Spectrographic Zinc-Base Die-Casting 0Z0 Sulfate and Nitrate on Filter Media

Alloy d Sulfur Dioxide in Nitrogen

Spectrographic Zinc-Base Die-Casting A77 DZ / Sulfur Dioxide in Nitrogen

A 11-,. Alloy C Sulfur Dioxide in Nitrogen

Spectrographic Zinc-Base Die-Casting 0Z8 Sulfur Dioxide in Nitrogen

A 11.,.. I

-\ Alloy D Sulfur Dioxide in Nitrogen

VnontrAnfonnir1 / i r~w~* Hqca 1 iip € q c tl n CT opcCirO^rdpillC Z-.1I1L.-Da:>c L/lC-V-.aMHlg 6?9 W 1 1 1 T 1 1 »• li i /~\ vi/IA in TVT iff/~\ <~ri=tr\ ouiim l^ioaiuc in i^nrogcri

Alloy E

Spectrographic Zinc-Base Die-Casting 630

Alloy F

Spectrographic Zinc Spelter Standard 631 Spectroscopic Titanium-Base Standard 641 Spectroscopic Titanium-Base Standard 642

Spectroscopic Titanium-Base Standard 643

SRM

644

645 646

493 2529

2528

2527

2526

1590

12 Id 123c 160b

367

1267 73c CI 151 1151a C1152

1152a CI 153 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

25
Name SRM Name SRM

Sulfur Dioxide in Nitrogen 1696 Titanium-Base Alloy (Unalloyed) 650

Sulfur Dioxide Permeation Tube 1627 Titanium-Base Alloy (Unalloyed) 651

(2 cm tube) Titanium-Base Alloy (Unalloyed) 652

Sulfur Dioxide Permeation Tube 1626 Titanium Dioxide 154b

(5 cm tube) Toluene 211c

Sulfur Dioxide Permeation Tube 1625 Tomato Leaves 1573

(10 cm tube) Tool Steel (AISI M2) 132b

Sulfur in Coal 2682 Tool Steel (AISI M2) 1157

Sulfur in Coal 2683 Tool Steel Abrasive Wear Standard 1857

Sulfur in Coal 2684 Tracealloy (Nickel-Base 897

Sulfur in Coal 2685 High-Temperature Alloy)

Sulfur in Residual Fuel Oil 1619 Tracealloy (Nickel-Base 898

Sulfur in Residual Fuel Oil 1620a High-Temperature Alloy)

Sulfur in Residual Fuel Oil 1621b Tracealloy (Nickel-Base 899

Sulfur in Residual Fuel Oil 1622b High-Temperature Alloy)

Sulfur in Residual Fuel Oil 1623a Trace Elements in a Glass Matrix 610

Sulfur in Residual Fuel Oil 1624a Trace Elements in a Glass Matrix 611

Sulfur Rubber Compound 371g Trace Elements in a Glass Matrix 612 Superconductive Thermometric Fixed 767a Trace Elements in a Glass Matrix 613

Point Device Trace Elements in a Glass Matrix 614

Superconductive Thermometric Fixed 768 Trace Elements in a Glass Matrix 615

Point Device Trace Elements in a Glass Matrix 616

Surface Flammability Standard 1002c Trace Elements in a Glass Matrix 617

Synthetic Sapphire 720 Trace Elements in Coal (Bituminous) 1632a Technetium-99 Radioactivity Standard 4288 Trace Elements in Coal (Sub- 1635 Technetium-99m Radioactivity 4410H-I bituminous

Standard Trace Elements in Coal Fly Ash 1633a Tetrachloroethylene in Nitrogen 1808 Trace Elements in Fuel Oil 1634a Thallium-201 Radioactivity Standard 4404L-F Trace Elements in Water 1643a Thermal Resistance, Fibrous Glass 1451 Trace Mercury in Coal 1630

Batt 2,2,4-Trimethylpentane 217c

Thermal Resistance, Fibrous Glass 1450b Tripalmitin 1595 Board Tris, Basimetric 723a

Thorium-228, Thallium-208 Gamma-ray 4206C Tris, for Solution Calorimetry 724a

Point-Source Standard Tris(hydroxymethyl)aminomethane 922

Tin-Base Bearing Metal 54D Tris(hydroxymethyl)aminomethane 923

Tin, Freezing Point 741 hydrochloride

Tin-1 13-Indium-l 13m Radioactivity 4402L-C Tris(l -phenyl- 1, 3-butanediono) 1078b

Standard Chromium (III) Tin-121m Point-Source Gamma-ray 4264B Tris(l -phenyl- 1, 3-butanediono) 1079b Emission-Rate Standard Iron (III) Tin, Secondary Freezing Point 42g Triphenyl Phosphate 1071b

Standard Tungsten Carbide 276a Titanium Alloy 654a Tungsten-Chromium-Vanadium Steel 50c Titanium-Base Alloy 173b Tungsten Concentrate 277 Titanium-Base Alloy 176 Tungsten, Heat Capacity 782 Tungsten-20% Molybdenum Alloy 480

Electron Microprobe Standard

Tungsten Thermal Expansion 737 Unalloyed Copper 1034 Unalloyed Copper, Cu "O" 393 Unalloyed Copper, Cu IV 457

Unalloyed Copper, Cu XI 454

Unalloyed Copper, Cu I (Chip) 394

Unalloyed Copper, Cu II (Chip) 395 Unalloyed Copper, Cu III (Chip) 396

Unalloyed Copper, Cu V (Chip) 398 Unalloyed Copper, Cu VI (Chip) 399 Unalloyed Copper, Cu VII (Chip) 400

Unalloyed Copper, Cu I (Rod) 494

26
Name SRM Name SRM

Unalloyed Copper, Cu II (Rod) 495 Wear-Metals in Lubricating Oil 1085 Unalloyed Copper, Cu III (Rod) 496 (300 ppm)

Unalloyed Copper, Cu V (Rod) 498 Wheat Flour 1567 Unalloyed Copper, Cu VI (Rod) 499 White Cast Iron 338 Unalloyed Copper, Cu VII (Rod) 500 White Cast Iron (Disc) 1 145 Unalloyed Titanium 1 C A 354 ii rl • . i . T / V ' \ White Cast Iron (Disc) 1 146 Uranium Isotopic Standard (Nominally U-0002 White Cast Iron (Disc) 1 150 depleted to 0.02%) White Ceramic Tile for Directional 2019b

Uranium Isotopic Standard U-005a Hemispherical Reflectance Uranium Isotopic Standard U-010 White Ceramic Tile for Directional 2020

(Nominally 1% Enriched) Hemispherical Reflectance Uranium Isotopic Standard U-01

5

White Iron 3d (Nominally 1.5% Enriched) White Opan Glass Diffuse Spectral 2015 Uranium Isotopic Standard U-020 Reflectance Standard for the Uranium Isotopic Standard U-030a Visible Spectrum

Uranium Isotopic Standard 1 T f\ C f\ U-050 Xenon- 127 Gaseous Radioactivity 4309G

(Nominally 5% Enriched) Standard

Uranium Isotopic Standard 111 f\C\ U - 100 Xenon- 133 Gaseous Radioactivity 43071 (Nominally 10% Enriched) Standard

Uranium Isotopic Standard Til CA U-l 50 "l r I'll >—i T"* 1 * .

• •

,

Xenon- 133 Gaseous Radioactivity 4415L-I (Nominally 15% Enriched) Standard

Uranium Isotopic Standard U-200 Xenon-133, Xenon-137, Krypton-85 4310B

(Nominally 20% Enriched) Mixed Gaseous Radioactivity

Uranium Isotopic Standard U-350 Standard

(Nominally 35% Enriched) "\.T 1

1 ' 1{~~* . T> 11 , X-ray Film Step Tablet 1001 Uranium Isotopic Standard U-500 X-ray Powder Diffraction Intensity 674

(Nominally 50% Enriched) Standard

Uranium Isotopic Standard TIT cn U- /5U X-ray Powder Diffraction (Mica) 675 (Nominally 75% Enriched) Low 2 Theta

Uranium Isotopic Standard T T QAA Ytterbium-169 Radioactivity Standard 4419L-B

/v t • ii n/~\^>f i— i i\ (Nominally 80% Enriched) Zinc-Base Alloy (Die Casting) 94c

TT T * _ 0*.~ 11 Uranium Isotopic Standard T I C <f\ U-53U Zinc Concentrates 1 1 .VI (Nominally 85% Enriched) Zinc Concentrates 329 Uranium Isotopic Standard T 1 nAA U-900 Zinc Cyclohexanebutyrate 1073b (Nominally 90% Enriched) Zinc, Freezing Point 740 Uranium Isotopic Standard U-930 Zinc, Freezing Point Standard A ">1_ 43h

/"V T * 11 C\ "l y>Y T—" '1 J \ (Nominally 93% Enriched) Zinc Metal Uranium Isotopic Standard t i mr\ U-97U Zinc Oxide Rubber Compound 5 /ue (Nominally 97% Enriched) Zircaloy-2 joua

Uranium Metal you Zircaloy-4 Metal 1 1 11 1 Zj / Uranium Oxide 950b Zircaloy-4 Metal 12 Jo Uranium Oxide 969 Zircaloy-4 Metal 1 1 1 n 1239 Uranium-233 Spike Assay and 995 Zirconium-Barium Chromate 1 03 1 Isotopic Solution Standard Formulation for Heat-Source Uranium-235 Spike Assay and 993 Powder Calorimetry

Isotopic Solution Standard Zirconium-Barium Chromate 1 tOZ Urban Dust/Organics 1649 Formulation for Heat-Source Urban Particulate Matter 1648 Powder Calorimetry Urea 912a Zirconium-Barium Chromate 1653 Urea 2141 Formulation for Heat-Source Urea 2152 Powder Calorimetry

Uric Acid n 1 i 913 Zirconium Metal 1 1 1 A 1234 Vanadium and Nickel in Residual 1015 Zirconium Metal 1 Z J J Fuel Oil Zirconium Metal 1 Z jO

Vanadium in Curde Oil 8505 Vanadium-49 Low-Energy Photon 4266

Standard

Waspaloy 349 Wear-Metals in Lubricating Oil 1084

(100 ppm)

27
U. S. Department of Commerce

Frederick B. Dent

Secretary Appendix II. Certificates for the Environmental Research,

Analysis, and Control Standards (listed in

numerical order)

.

National Bureau of Standards

Richard W. Roberts, Director

Powdered Lead Based Paint

This Standard Reference Material is intended for use in the calibration of apparatus and methods

used in the determination of lead in paint removed from the interior surfaces of old housing. The

certified value is based on at least a 100 milligram sample of the as-received, total material.

The certified value of 11.87 percent lead is the weighted average value determined by a statistical analysis of the results of 32 determinations by atomic absorption spectrometry (average 11.84

percent lead, s = 0.13 percent lead), and 16 determinations by polarography (average 11.93 percent

lead, s = 0.13 percent lead). The standard error of the weighted average is 0.02 percent lead, and

the half-width of the 95 percent confidence interval is taken to include ± 0.04 percent lead by

weight.

X-ray fluorescence spectrometry showed the bottle-to-bottle inhomogeneity of the material with

respect to lead content to be no greater than 0.02 percent lead; no within-bottle inhomogeneity was detected.

Analyses for lead and determinations of homogeneity were carried out in the NBS Analytical

Chemistry Division by the following persons:

X-ray Fluorescence: S. D. Rasberry

Atomic Absorption Spectrometry: T. C. Rains and T. A. Rush

Polarography: E. J. Maienthal

Statistical calculations were carried out by J. Mandel of the NBS Institute for Materials Research.

The overall direction and coordination of the technical measurements leading to this certificate were performed under the chairmanship of B. Greifer.

The technical and support aspects involved in the preparation, certification, and issuance of this Standard Reference Material were coordinated through the Office of Standard Reference Materials byT. W. Mears.

Lead Content 11.87 ± 0.04 Weight Percent

Washington, D. C. 20234

January 23, 1973

J. Paul Cab, Chief

Office of Standard Reference Materials

(over)

28
Preparation, Testing, and Analysis

Collection

The paint for this Standard Reference Material was collected by the staff of the Philadelphia

Department of Public Health from the interior surfaces of dwellings undergoing renovation. The

paint was softened with a hand torch, scraped from the plaster and wood substrates, and collected

in plastic bags as a heterogeneous mixture of many different kinds of paints. In the laboratory,

non-paint matter such as bits of metal, plastic, glass, and wood were removed and the paint mixture was ground in a disk mill to produce a material suitable for feeding into a jet mill. The paint was comminuted in a jet mill operating at 100 psig air pressure, then sieved through a 100-mesh

vibrating screen to remove the coarse, non-grindable fraction. Two additional passes through the jet mill at 97 to 107 psig gave a fine powder with 99.31 weight percent passing through a 325 mesh

sieve.

Homogeneity

Sample homogeneity was ascertained by x-ray fluorescence analysis for lead content on 17

samples chosen at random from the total lot. A statistical analysis of the data from 136 observations showed the bottle-to-bottle variability among the samples to be no greater than 0.02 percent

lead. No within-bottle variation with respect to lead was detected.

Dissolution A procedure used to dissolve the sample is summarized briefly: dry ash the weighed paint for 2 hours at 450° C, digest with 2:5 HC1 - HN03 containing HF, evaporate to dryness; treat with

HN03> evaporate to dryness; treat twice with HC1 and evaporate to dryness each time. Extract the

solids twice with portions of acetic acid - ammonium acetate solution, heating for several hours just

below boiling. Combine the extracts and heat the mixture (including solids) for one hour, just

below boiling. Cool the mixture and determine lead in solution. (The solids need not be removed

for polarographic analysis.)

An alternate procedure for sample dissolution is: dry ash the weighed paint for 6 hours

at 500 ° C, cool, then digest for 2 hours in 1:1 HC1 - HN03 . Separate the insoluble solids from the

solution by centrifuging, and wash 3 times with 1:10 HN03 combining the rinsings with the

principal solution. Determine lead in solution.

Details of the dissolution procedures, the analytical procedures, and results will be published in the 260 series of NBS Special Publications.

29
U. S. Department of Commerce

Philip M. Klutznick

Secret ary

National Butmm of Standards

Ernest 'Ambler, Director Rational bureau of j^tandartte

Certificate of JVrtalgsis

Standard Reference Material 1580

Organics in Shale Oil

This SRM is intended primarily for evaluating the reliability of analytical methods for the determination

of trace level organic compounds in an oil matrix, i.e., shale oil, petroleum crude oil, or coal-derived liquids.

Certified Values of Constituent Organic Compounds: The certified values for selected organic constituents are shown in Table l. These values are based on results obtained by two independent, analytical methods (see Table 2). Non-certified values, which are given for information only, are listed in Table 3. NOTICE AND WARNINGS TO USER

Expiration of Certification: This certification is valid, within the limits certified, for 3 years from the date of purchase. In the event that the certification should become invalid before then, purchasers will be notified by NBS.

Storage: Sealed ampoules, as received, should be stored in the dark at temperatures between 10-30 °C.

Use: Samples for analysis should be withdrawn from ampoules immediately after opening and processed without delay for any certified value in Table 1 to be valid within the stated uncertainty. Certified values are not applicable to ampoules stored after opening, even if resealed. PREPARATION AND ANALYSIS

The shale oil for this SRM came from a 150-ton retort for in-situ simulated combustion of oil shale, operated by

the Laramie Energy Technology Center, Laramie, Wyoming. The shale was from the Mahogany Zone of the Colorado Green River Formation. The shale oil had been supplied in November 1975 to the Oak Ridge National Laboratory (ORNL) where it underwent centrifugation to separate the oil from water and sludge. The shale oil was provided to NBS by Bruce R. Clark, ORNL, Oak Ridge, Tennessee. At NBS, the centrifuged sample was filtered through fine filter paper and mixed in a 20-liter, Teflonstoppered, glass bottle by rolling for 40 hours. Samples were aliquoted into 2-mL amber glass ampoules.

Although not intended to be representative of all shale oils, SRM 1 580 provides a typical specimen of this matrix

for use in developing analytical methods. Randomly selected ampoules were analyzed. Each analyst examined at least six ampoules, sometimes

measuring replicates from one ampoule. No trend was found in measured values with the ampouling sequence. Two independent techniques were employed for the determination of the certified values for the organic

constituents. Three different methods of sample preparation were used prior to analysis: simple dilution of the

shale oil with methylene chloride (or other suitable solvent); acid /base extraction to isolate acidic, basic, and

neutral components; and a high performance liquid chromatographic fractionation. The following techniques were employed for the final quantitative analysis: gas chromatography (GC), gas chromatography /massspectrometry (GC/MS) with single ion monitoring for selective detection, and high performance liquid chromatography (HPLC) with selective fluorescence detection. All GC/MS analyses used the standard addition method for quantitation. The GC and HPLC analyses employed either internal standard, external standard, or standard addition methods. The analytical methods and the corresponding values are summarized in Table 2.

Consultation on the statistical design of the experimental work was provided by K. R. Eberhardt of the

Statistical Engineering Division. The coordination of the technical measurements leading to certification were performed under the direction of H. S. Hertz, S. N. Chesler, L. R. Hilpert, W. E. May, and S. A. Wise. The technical and support aspects involved in preparation, certification, and issuance of this Standard

Reference Material were coordinated through the Office of Standard Reference Materials by R. Alvarez.

Washington, D.C. 20234 George A. Uriano, Chief November 24, 1980 Office of Standard Reference Materials (Revision of Certificate (over) dated 3-10-80)

30
The following members of the staff of the Center for Analytical Chemistry, Organic Analytical Research

Division, performed the analytical determinations.

1. J. M. Brown-Thomas

2. S. N. Chesler

3. F. R. Guenther

4. L. R. Hilpert

5. P. L. Konash

6. W. E. May

7. R. M. Parris

8. K L. Richie

Compound

Fluoranthene Pyrene

Benzo[a]pyrene

Benzo[e]pyrene

Perylene

TABLE 1. Certified Values of Organic Constituents

Concentration (ngjg)

54 ±

104 ±

21 ±

18 ±

3.4 ±

10

186

8

2.2

Phenol 407 ± 50

o-Cresol 385 ± 50 2,6-Dimethylphenol 175 ±30

Benzo[/]quinoline 16 ±4

(5,6-Benzoquinoline)

"The estimated uncertainty listed for a constituent is based on judgment and represents an evaluation of the combined effects of method imprecision, possible systematic errors among methods, and material inhomogeneity. The estimated uncertainty is intended to correspond to approximately 95% confidence limits. TABLE 2. Summary of Results by the Analytical Methods Used in Certification Number

Compound Concentration (ng/gf

of Ampoules

Analyzed

Sample Preparation

Technique

Analytical

Technique

Fluoranthene 55 + 5 6 Direct Injection GC/MS

53 + 2

1 9 HPLC HPLC

Pyrene 101 + 5 6 Direct Injection GC/MS

107 + 8 10 HPLC HPLC

Benzo[a]pyrene 20 + 1 6 Direct Injection GC/MS

23 + 1 8 HPLC HPLC

Benzo[e]pyrene 17 + 1 6 Direct Injection GC/MS

20 + 3 8 HPLC HPLC

Perylene 2.8 + 0.6 5 Direct Injection GC/MS

3.9 + 0.6 11 HPLC HPLC

Phenol 412 ± 35 8 HPLC GC/MS

402 + 4 8 Acid /Base Extraction GC

o-Cresol 386 ± 42 8 HPLC GC/MS

384 + 9 8 Acid /Base Extraction GC

2,6-Dimethylphenol 183 ± 23 9 HPLC GC/MS

168 + 8 8 Acid /Base Extraction GC

Benzo[/]quinoline 16 + 1 7 HPLC HPLC

(5,6-Benzoquinoline) 15 + 1 8 Acid /Base Extraction Multi- dimensional

Uncertainty is the standard deviation of a single measurement. GC

3]
TABLE 3. Non-Certified Values of Organic Compounds in Shale Oil NOTE: The values shown in this table are not certified because they are not based on the results of two

independent methods. These values are included for information only.

Compound Concentration (fig/g)

p-Cresol (270)

a

m-Cresol (330)

a

2,5-DimethyIphenol (320)"

2,4-Dimethylphenol (380)

a

2,5,6-Trimethylphenol (360)

a

2,4,6-Trimethylphenol (120)

a

Phenanthridine (45)

b

Acid/base extraction - GC analysis

b HPLC extraction - HPLC analysis

32
U. S. Department of Commerce

Malcolm Baldrige Secretary

National Bureau of Standards

Ernest Ambler. Director

Rational J&mtnu of j^tandarria

Certificate of ^nalgsis

Standard Reference Material 1620a

Sulfur in Residual Fuel Oil

Sulfur Concentration 4.504 ± 0.010 weight percent

This Standard Reference Material is intended for use as an analytical standard in the determination of total sulfur in fuel

oils or materials of similar matrices. SRM 1620a is a commercial"No. 5 Heavy" residual fuel oil as defined by American

Society for Testing and Materials, ASTM.

Sulfur was certified using three independent methods of analysis: gravimetry, ion chromatography, and x-ray

fluorescence. The standard error of the certified value includes observed variability within and between measurement methods and any

observed material heterogeneity.

NOTICE AND RECOMMENDED USE: Due to the high sulfur content of SRM 1620a, it is recommended that the

bottle be shaken vigorously before sampling. Homogeneity and stability testing at NBS indicates that the best results are achieved when the material is shaken before use.

Analyses for certification were performed by W. F. Koch and E. R. Deardorff of the Inorganic Analytical Research

Division and P. A. Pella of the Gas and Particulate Science Division. The statistical analysis of the certification data was performed by R. C. Paule of the National Measurement Laboratory.

The overall direction and coordination of the technical measurements leading to certification were performed underthe

chairmanship of E. L. Garner, Chief of the Inorganic Analytical Research Division. The technical and support aspects involved in the preparation, certification, and issuance of this Standard Reference

Material were coordinated through the Office of Standard Reference Materials by T. E. Gills.

Washington, D.C. 20234 George A. Uriano, Chief December 22, 1981 Office of Standard Reference Materials

(over)

33
SR M 1620a was also tested and lound to exhibit the physical properties shown in Table I . In addition, semi-quantitative

values obtained by emission spectrometry are given in Table 2. These values are not certified, but supplied for information only.

Table I

Physical Properties lor SR M 1620a

Hash Kinematic Pour Point

c Density @ 20

Point " Viscosity

h °C g, cm

°C 50 °C (cSt)

70 47.75 2 1.096

These measurements were performed by S. Weeks, Materials Chemistry Division, Center for Material

Science. Methods Used for Physical Tests

a. ASTM D-93-80 Flash Point by Pensky-Martens Closed Tester

b. ASTM D445-79 Kinematic Viscosity of Transparent and Opaque Liquids

c. ASTM D97-66 (1978) Pour Point of Petroleum Oils

d. ASTM D4052-8I Density and Relative Density of Liquids by Digital Density Meter (modified)

Table 2

Semi-Quantitative Emission Spectrometry

Analysis for SR M 1620a

Element jug/ mL Element Mg, mL

Al 20 Mo <l

B <l Na 31 Ca 9 Ni <l

Cr <l Si 13 Cu <l Sn <l

Fe <5 Ti <l

Mg <1 V <1 Mn <l Zn 23

Note: SRM 1620a was analyzed using the rotating disc method. This method is based on absolute amounts of sample since no internal standard is used to correct for the amount of sample actually analyzed. Difterences in actual values may range from factors of 1-3.

These measurements were performed by J. A. Norris, Inorganic

Analytical Research Division, Center for Analytical Chemistry.

34
U. S. Department of Commerce

Malcolm Baldnge

Secretary

National Bureau of Standards

Ernest Ambler. Director

Rational ^ureait of j^tandartb

Certificate of ^ttalgsi*

Standard Reference Material 1621b

Sulfur in Residual Fuel Oil

Sulfur Concentration 0.950 ± 0.005 weight percent

This Standard Reference Material is intended for use as an analytical standard in the determination of total sulfur in fuel

oils or materials of similar matrices. SRM 162 1 b is a commercial "No. 6" residual fuel oil as defined by American Society

for Testing and Materials, ASTM.

Sulfur was certified using three independent methods of analysis: gravimetry, ion chromatography, and x-ray

fluorescence. The standard error of the certified value includes observed variability within and between measurement methods and any

observed material heterogeneity.

NOTICE: The certification of SRM 1621b is valid for 3 years from date of purchase.

Analyses for certification were performed by W. F. Koch and E. R. Deardorff of the Inorganic Analytical Research

Division and P. A. Pella of the Gas and Particulate Science Division. The statistical analysis of the certification data was performed by R. C. Paule of the National Measurement Laboratory.

The overall direction and coordination of the technical measurements leading to certification were performed under the chairmanship of E. L. Garner, Chief of the Inorganic Analytical Research Division. The technical and support aspects involved in the preparation, certification, and issuance of this Standard Reference

Material were coordinated through the Office of Standard Reference Materials by T. E. Gills.

Washington, D.C. 20234 George A. Uriano, Chief December 22, 1981 Office of Standard Reference Materials

(over)

35
SRM 1621 b was also tested and found to exhibit the physical properties shown in Table I. In addition, semi-quantitative

values obtained by emission spectrometry are given in Table 2. These values are not certified, but supplied for information only.

Table I

Physical Properties for SRM 1621b

Flash

Point

°C

Kinematic

Viscosity h 50 °C (cSt)

Pour Point

c °C

Density @ 20 °Cd g/cm

1 1

1

89.2 1

1

0.929

These measurements were performed by S. Weeks, Materials Chemistry Division, Center for Material

Science. Methods Used for Physical Tests

a. ASTM D-93-80 Flash Point by Pensky-Martens Closed Tester

b. ASTM D445-79 Kinematic Viscosity of Transparent and Opaque Liquids

c. ASTM D97-66 (1978) Pour Point of Petroleum Oils

d. ASTM D4052-8I Density and Relative Density of Liquids by Digital Density Meter (modified)

Table 2

Semi-Quantitative Emission Spectrometry

Analysis for SRM 1621b

Element /ug/mL Element ^ig/mL

Al 6 Mo <1

B <1 Na 8 Ca 9 Ni 6 Cr 3 Si 6 Cu <1 Sn <1

Fe <5 Ti <I Mg <l V 15 Mn 1 Zn 15

Note: SRM 1 62 1 b was analyzed using the rotatingdisc method. This method is based on absolute amounts of sample since no internal standard is used to correct for the amount of sample actually

analyzed. Differences in actual values may range from factors of 1-3.

These measurements were performed by J. A. Norris, Inorganic

Analytical Research Division, Center for Analytical Chemistry.

36
U. S. Department of Commerce

Malcolm-Said rige

National puraaw orilandards

Ernest Umblpr, Director

Rational T&mtmx of jsttandante

Certificate of ^ttalgats

Standard Reference Material 1622b

Sulfur in Residual Fuel Oil

Sulfur Concentration 1.982 ±0.018 weight percent

This Standard Reference Material is intended for use as an analytical standard in the determination of total sulfur in fuel

oils or materials of similar matrices. SRM 1622b is a commercial "No. 6" residual fuel oil as defined by American Society

for Testing and Materials, ASTM.

Sulfur was certified using three independent methods of analysis: gravimetry, ion chromatography, and x-ray

fluorescence. The standard error of the certified value includes observed variability within and between measurement methods and any

observed material heterogeneity.

NOTICE: The certification of SRM 1622b is valid for 3 years from date of purchase.

Analyses for certification were performed by W. F. Koch and E. R. Deardorff of the Inorganic Analytical Research

Division and P. A. Pella of the Gas and Particulate Science Division. The statistical analysis of the certification data was performed by R. C. Paule of the National Measurement Laboratory.

The overall direction and coordination of the technical measurements leading to certification were performed under the chairmanship of E. L. Garner, Chief of the Inorganic Analytical Research Division. The technical and support aspects involved in the preparation, certification, and issuance of this Standard Reference

Material were coordinated through the Office of Standard Reference Materials by T. E. Gills.

Washington, D.C. 20234 George A. Uriano, Chief December 22, 1981 Office of Standard Reference Materials

(over)

37
SRM 1622b was also tested and found to exhibit the physical properties shown in Table 1. In addition, semi-quantitative values obtained by emission spectrometry are given in Table 2. These values are not certified, but supplied for information only.

Table I

Physical Properties for SRM 1622b

Flash Kinematic Pour Point

0 Density @ 20 °C<1

Point a Viscosity

b °C g/cm

°C 50 °C (cSt)

65 377.34 -7 0.984

These measurements were performed by S. Weeks, Materials Chemistry Division, Center for Material

Science. Methods Used for Physical Tests

a. ASTM D-93-80 Flash Point by Pensky-Martens Closed Tester

b. ASTM D445-79 Kinematic Viscosity of Transparent and Opaque Liquids

c. ASTM D97-66 (1978) Pour Point of Petroleum Oils

d. ASTM D4052-81 Density and Relative Density of Liquids by Digital Density Meter (modified)

Table 2

Semi-Quantitative Emission Spectrometry

Analysis for SRM 1622b

Element Aig/mL Element jig/mL

AI 8 Mo <1

B <1 Na 25 Ca 24 Ni 15 Cr 1 Si 13 Cu <l Sn <1

Fe <5 Ti <1

Mg 2 V 50 Mn 1 Zn 11

Note: SRM 1622b was analyzed using the rotating disc method. This method is based on absolute amounts of sample since no internal standard is used to correct for the amount of sample actually

analyzed. Differences in actual values may range from factors of 1-3. These measurements were performed J. A. Norris, Inorganic

Analytical Research Division, Center for Analytical Chemistry

38
I*. S. Department o' Commerce

Malcolm liiUlri^L- Secretary

ilional Rurmu of Surulards

l

: rncNt Anihltt. I Elector

Rational ;8ttram of jitandartb

Certificate of

Standard Reference Material 1623a

Sulfur in Residual Fuel Oil

Suliur Concentration 0.240 ± 0.003 weight percent

I his Standard Relerence Material is intended tor use as an analytical standard in the determination of total sulfur in fuel

oils or materials of similar matrices. SRM 1623a is a commercial "No. 5 Heavy" residual fuel oil as defined by American

Society for Testing and Materials, ASTM.

Sultur was certified using three independent methods of analysis: gravimetry, ion chromatography, and x-ray

lluorescenee.

The standard error of the certified value includes observed variability within and between measurement methods and any

observed material heterogeneity.

NOTICE: The certification of SRM 1623a is valid for 3 years from date of purchase.

Analyses lor certification were performed by W. F. Koch and E. R. Deardorff of the Inorganic Analytical Research

Division and P. A. Pella of the Gas and Particulate Science Division.

I he statistical analysis of the certification data was performed by R. C. Paule of the National Measurement Laboratory.

1 he overall direction and coordination of the technical measurements leading to certification were performed under the chairmanship of E. L. Garner, Chief of the Inorganic Analytical Research Division.

The technical and support aspects involved in the preparation, certification, and issuance of this Standard Reference

Material were coordinated through the Office of Standard Reference Materials by T. E. Gills.

Washington, D.C. 20234 George A. Uriano, Chief December 22, 1981 Office of Standard Reference Materials

(over)

39
SRM 1623a was also tested and found to exhibit the physical properties shown in Table I. In addition, semi-quantitative

values obtained by emission spectrometry are given in Table 2. These values are not certified, but supplied for information only.

Table I

Physical Properties for SRM 1623a

Flash

Point '' °C

Kinematic

Viscosity h

50 °C (cSt)

Pour Point

1" °C

Density @ 20 °C

d g/cm

140 53.82 17 0.918

These measurements were performed by S. Weeks, Materials Chemistry Division, Center for Material

Science. Methods Used for Physical Tests

a. ASTM D-93-80 Flash Point by Pensky-Martens Closed Tester

b. ASTM D445-79 Kinematic Viscosity of Transparent and Opaque Liquids

c. ASTM D97-66 (1978) Pour Point of Petroleum Oils

d. ASTM D4052-81 Density and Relative Density of Liquids by Digital Density Meter (modified)

Table 2

Semi-Quantitative Emission Spectrometry

Analysis for SRM 1623a

Element |ig/mL Element /ig/mL

Al 5 Mo <l

B <1 Na 9 Ca 9 Ni 1 Cr 1 Si <l

Cu <l Sn <l

Fe <5 Ti <l

Mg <1 V 3 Mn <l Zn 15

Note: SRM 1623a was analyzed usingthe rotatingdisc method. This method is based on absolute amounts of sample since no internal standard is used to correct lor the amount of sample actually

analyzed. Dillerences in actual values may range from factors of 1-3.

These measurements were performed by J. A. Norris, Inorganic

Analytical Research Division, Center for Analytical Chemistry.

40
U. S. Department of Commerce

Malcolm Buldrige Secretary

National Bureau of Standard*

Ernest ^mblur. LJireclur

^att^nal J&vtttm of jltandard*

QLtttxVxmtt of Jtaalgsfe

Standard Reference Material 1824a

Sulfur in Distillate (Diesel ) Fuel Oil

Sulfur Concentration 0. 14I ± 0.002 weight percent

This Standard Reference Material is intended for use as an analytical standard in the determination of total sulfur in fuel

oils or materials of similar matrices. SRM 1624a is a commercial "No. 2-D" distillate fuel oil as defined by American

Society for Testing and Materials, ASTM.

Sulfur was certified using two independent methods of analysis: gravimetry and ion chromatography.

The standard error of the certified value includes observed variability within and between measurement methods and any

observed material heterogeneity.

NOTICE: The certification of SRM 1624a is valid for 3 years from date of purchase.

Analyses for certification were performed by W. F. Koch and E. R. Deardorff of the Inorganic Analytical Research

Division and P. A. Pella of the Gas and Particulate Science Division. The statistical analysis of the certification data was performed by R. C. Paule of the National Measurement Laboratory.

The overall direction and coordination of the technical measurements leading to certification were performed under the chairmanship of E. L. Garner, Chief of the Inorganic Analytical Research Division. The technical and support aspects involved in the preparation, certification, and issuance of this Standard Reference

Material were coordinated through the Office of Standard Reference Materials by T. E. Gills.

Washington, D.C. 20234 George A. Uriano, Chief December 22, I98l Office of Standard Reference Materials

(over)

41
SRM 1624a was also tested and found to exhibit the physical properties shown in Table 1. In addition, semi-quantitative

values obtained by emission spectrometry are given in Table 2. These values are not certified, but supplied for information only.

Table 1

Physical Properties for SRM 1624a

Flash

Point" °C

Kinematic

Viscosity b 40 °C (cSt)

Cloud Point' °C

Density @ 20 °C

d g/cm

53 2.57 -14 0.848

These measurements were performed by S. Weeks, Materials Chemistry Division, Center for Material

Science. Methods Used for Physical Tests

a. ASTM D-93-80 Flash Point by Pensky-Martens Closed Tester

b. ASTM D445-79 Kinematic Viscosity of Transparent and Opaque Liquids

c. ASTM D2500-66 (1976) Cloud Point of Petroleum Oils

d. ASTM D4052-81 Density and Relative Density of Liquids by Digital Density Meter (modified)

Table 2

Semi-Quantitative Emission Spectrometry

Analysis for SRM 1624a

Element /ug/ mL Element /ig/mL

Al 1 Mo <1

B <1 Na <1

Ca 7 Ni <1

Cr <1 Si <1

Cu <l Sn <1

Fe <5 Ti <1

Mg <l V <l

Mn <1 Zn <1

Note: SRM 1624a wasanalyzed usingthe rotatingdisc method. This method is based on absolute amounts of sample since no internal standard is used to correct for the amount of sample actually analyzed. Differences in actual values may range from factors of 1-3.

These measurements were performed by J. A. Norris, Inorganic

Analytical Research Division, Center lor Analytical Chemistry.

4 2
U.S. Department of Commerce

.luamla M. Kreps

Secretary

National Bureau ot Standards

Ernest Ambler. Director Rational ^Bureau of Standards

Certificate of (Analysis

Standard Reference Material 1630

Trace Mercury in Coal

This Standard Reference Material is intended as an analytical standard for the determination of trace mercury

in coal. The material is a commercially available coal that was crushed to a size of 2 1 0 to 500 micrometers with a

roll crusher. From a total of 500 packaged bottles, 30 were randomly selected for analysis. Duplicate determinations were made on 0.5 g portions of 25 of these bottles, and single determinations were made on the other five. The mercury content of this material was obtained by destructive neutron activation analysis. The recommended value is the average of these 55 determinations on 30 bottles, which was found to be: Mercury content = 0.13 Mg/g

The recommended value is not expected to change by more than ± 1 in the last significant figure. A study of homogeneity showed no variability among bottles that could not be accounted for by analytical error. Duplicate samples from the same bottle indicated a homogeneity for mercury of ± 5% (relative). The mercury content was also determined by flameless atomic absorption spectrometry, yielding an average

value of 0. 14 Mg/g- Selenium was also determined using destructive neutron activation analysis. The value obtained, which is not

certified but included for information only, was found to be 2. 1 /xg/g- The homogeneity testing and analyses for certification were performed in the NBS Analytical Chemistry

Division by T. E. Gills and H. Rook under the direction of P. D. LaFleur. The technical and support aspects involved in the preparation, certification, and issuance of this Standard

Reference Material were coordinated through the Office of Standard Reference Materials by C. L. Stanley.

Washington, D.C. 20234 George A. Uriano, Chief August 1, 1979 Office of Standard Reference Materials (Revision of Certificate dated 1 1-2-71 Editorial Revision only.) (over)

43
ANALYTICAL PROCEDURE

The bottles containing the samples were allowed to remain open at room temperature (about 25 °C) for twenty-four hours. The coal samples, along with solution standards of mercury and NBS Standard Reference Material 1571 (Orchard Leaves) used as a control, were encapsulated in cleaned quartz vials. The geometry of both the samples

and the standards were optimized so that flux monitors were not needed. The samples were irradiated for four 13-2-1 /. ...

hours at a thermal flux of 6 X 10 n cm sec . The samples were allowed to decay for three days to minimize

the personnel dose rate. The samples were postweighed into porcelain boats and burned in a combustion tube. The volatile mercury compounds and other volatile products liberated during burning were trapped in a liquid

nitrogen cold trap. The cold trap was allowed to warm to room temperature. The mercury compounds were then

transferred to polyethylene bottles by washing the cold trap with concentrated nitric acid and water. For this analysis,

l9? Hg produced by

1 6 Hg{n,y) 19 Hg was used as the measuring activity.

Bromine-82, an interfering isotope, was separated from the sample by using the classical silver bromide

precipitation.

The samples were counted on a 22 cm

3 Ge(Li) detector connected to a 2048-multichannel analyzer. The

accumulated data was processed by computer for peak identification and integration. The concentrations were

determined by using a Standard Comparator Method.

NOTE TO USER

It is suggested that persons using SRM 1630 to check their analytical technique should adopt the following

criteria. If the average, X, of N replicate measurements on this SRM is found to lie in the interval0-013 ^ .„ , 0.013 0.127- 7T- <X< 0127 +

-rZr

then the analytical technique used gives a result compatible with that found at NBS. However, if the value X lies outside this interval, then the technique should be examined for possible bias or miscalibration.

NOTE: The above expression is not rigorously correct. It does not include a possible component for between laboratory variability nor sources of systematic error.

SRM 1630 Page 2
U. S. Department of Commerce

Malcolm Baldnge

^ecrelaryf

National purest* of" $landards

Ernest \Ambler, Director

Rational ^mmn of j^iandanta

Certificate of JVrtalgste

Standard Reference Material 1632b

Trace Elements in Coal

(Bituminous)

This Standard Reference Material (SRM) is intended for use in the calibration of apparatus and the evaluation of tech- niques employed in the analysis of coal or similar materials. SRM 1632b is a bituminous coal with a nominal sulfur content of 1.9%. It is in the form of a fine powder (—60 mesh).

Certified Values of Constituent Elements: The certified values for the constituent elements are given in Table 1. The

certified values are based on measurements using proven techniques and methods. Noncertified values are given in Table 2 and are provided for information only. These values are based on measurements made using a single technique

or method. While no reason exists to suspect systematic bias in the information values, no attempt was made to deter- mine if such a bias exists that is attributable to the technique and/ or method used. A list of analytical techniques and methods used for the different analyses is given in Table 3. As part of its update certification program, NBS will periodically update many of these values to certification status.

Expiration of Certification: The certification of SRM 1632b will be valid up to 5 years from the purchase date. Should

any of the certified constituents become invalid prior to that date, purchasers will be notified by NBS.

Use: This material should be vacuum dried at ambient temperature for 24 hours prior to use. The certified concentrations are reported on a "dry-weight" basis, thus the concentration determined on undried samples should be adjusted for the moisture content of the sample. Typical moisture loss using the drying procedure stated above is 1.3%. A minimum sample size of 250 mg of the dried material is required for the certified values to be valid.

This SRM should be kept in its original bottle. It should not be exposed to intense source of radiation, including ultra- violet lamps or sunlight.

The statistical analysis of the certification data was performed by R.C. Paule of the National Measurement Laboratory.

The technical and support aspects involved in the preparation, certification, and issuance of this Standard Reference

Material were coordinated through the Office of Standard Reference Materials by T.E. Gills.

Gaithersburg, MD 20899 Stanley D. Rasberry, Chief June 20, 1985 Office of Standard Reference Materials

(over)

45
Source and Preparation of Material: The coal for this SRM was obtained from the Humphrey No. 7 mine and coal preparation plant of the Consolidation Coal Company, Christopher Coal Company Division, Osage, West Virginia. This mine produces bituminous coal with a sulfur content of 1.8- I.9percent (dry basis). This coal was obtained from an underground mine that recovers coal from the Pittsburgh seam, which is considered the single most valuable and

extensive coal seam in the United States. Approximately 900 kg of the coal for SRM 1632b was oven dried prior to processing, in accordance with procedures

outlined in ASTM D2013. The coal was reduced in size to —60 mesh and sieved prior to blending. The coal was then blended in a stainless steel cone blender (approximate capacity 0.85 cubic meter). After blending the coal was packaged

in polyethylene-lined aluminum cans and was subsequently repackaged in fifty gram units.

Analysis

Major, Minor, and Trace Constituents: In general, the major, minor, and trace constituents were certified using two or more independent methods of analysis or two or more different laboratories. For those constituents that were deter- mined using a single method, technique, or laboratory, the values are given for information only. (See Table 3).

Calorific Value : The calorific value was determined using measurements made In an Iscfperibol calorimeter, an iso- thermal calorimeter, and an adiabatic calorimeter at two different laboratories.

Moisture, Ash, and Volatile Matter: The moisture, ash,and volatile matter values were determined on measurements made using the standard ASTM methods, D3 173, D3 174, and D3 175, respectively. In addition, commercial instruments commonly used for the determination of the parameters provided additional values.

Page 2 SRM 1632b

46
Table 1, Certified Values of Constituent Elements Major Constituents Minor Constituents

Elements Carbon (Total) Hydrogen

Nitrogen

Sulfur

Volatile matter

Content

Wt. Percent

78. 11 ±0.37

a

5.07 ±0.06

1.56±0.07

1.89±0.06

35.4 ±1.1

Elements Aluminum

Calcium

Iron Magnesium

Potassium Sodium

Titanium

Content

Wt. Percent

0.855 ±0.019

0.204 ± 0.006

0.759 ± 0.045 0.0383 ± 0.0008

0.0748 ± 0.0028 0.0515 ± 0.0011 0.0454 ± 0.0017

Trace Constituents

Element

Arsenic Barium

Cadmium

Cobalt Copper

Lead

Content Mg/g

3.72 ±0.09

67.5 ±2.1

0.0573 ±0.0027

2.29 ±0.17

6.28 ±0.30

3.67 ±0.26

Element Manganese

Nickel Rubidium

Selenium

Thorium

Uranium

Zinc

Content

Atg/g

12.4 ±1.0

6.10 ±0.27

5.05 ±0.11

1.29 ±0.11

1.342 ±0.036

0.436 ±0.012

11.89 ±0.78

b c Calorific Value Ash, wt.%

14005 ± 35 Btu/lb (32.57 ±0.08 MJ kg"

1 ) 6.79 ±0.16

* The listed ± uncertainties for carbon, hydrogen, volatile matter, and calorific value are two

standard deviations of the certified value. The listed ± uncertainties for all other

constituents are two standard deviations for the certified values and include an allowance

for minor sample heterogeneity. The observed sample variability was generally less than two percent of the constituent value. The calorific value (MJ kg ') may decrease upon aging or normal oxidation of the coals. NBS will continue to monitor this value and report any substantive change in the certified

calorific value to the purchaser. The reference date for the calorific value is May 198V

c The calorific value is determined as HHV2 (Higher Heating Value-Moisture Free).

Table 2. Noncertified Values for Constituent Elements

Trace Constituents

Content Content

Element Mg/g Element Mg/g

Antimony (0.24) Lithium (10) Bromine (17) Molybdenum (0.9) Cerium (9) Samarium (0.87) Cesium (0.44) Scandium (1.9) Chlorine (1260) Silicon, wt % (1.4) Chromium (ID Strontium (102) Europium (0.17) Tungsten (0.48) Hafnium (0.43) Vanadium (14) Lanthanum (5.1)

Page 3 SRM i632b

47
Table 3. Analytical Techniques and Methods Used for the Characterization ofSRM 1632b

Method/

Element A B c E F G I L M

Al • « •

As • •

Ash Content • 2

•

Ba •

Br • C (Total) • 5

• • • Ca • • ••

Cal Val • • Cd • • Ce *

CI • Co • •

Cr • •

Cs • Cu • • Eu •

Fe • • • H • 5 • • Hf • K • * • •

La *

Li « Mg • • • Mn • • Mo • N • 6 Na • •

Ni • •

Pb • • Rb • • •

S

• • 4 • •

Sb *

Sc *

Se • •

Si • • Sm •

Sr • Th •

Ti • • •

U

•

V •

Volatile Matter • 3 • W

Zn • •

Page 4 SRM 1632b

48
Analytical Methods

A. Atomic absorption spectrometry

B. Isotope dilution mass spectrometry

C. Instrumental neutron activation analysis D. Flame emission spectrometry

E. Flameless atomic absorption spectrometry

F. Ion chromatography

G. ASTM Methods: (1)D3173, (2)D3174, (3)D3175, (4)D3177,

(5)D3178, (6)D3179

H. Combustion coulometry

I. Commercial coal analyzers: moisture, ash, sulfur, Btu,

volatile matter, carbon, hydrogen, nitrogen

J. Commercial calorimeter

K. Gas chromatography

L. X-ray fluorescence M. Inductively coupled plasma emission spectrometry

Analysts

NBS

E.S. Beary W.A. Bowman

K.A. Brletic T.A. Butler J.D. Fassett J.W. Gramlich

R.R. Greenberg W.F. Koch

L.A. Machlan

A. Marlow D.M. Mo

T.J. Murphy

P.J. Paulsen

P. Pella T.C. Rains

T.A. Rush

T.A. Sleater S.F. Stone

R. Zeisler

Laboratories

E. Huffman R. Peck Huffman Laboratories Dickerson Laboratory

Wheat Ridge, Colorado 80034 El Paso, Texas 79912

J.B. Bodkin

College Earth & Mineral Science The Pennsylvania State University

University Park, Pa. 16802

Page 5 SRM 1632b

49
U. S. Dcparttric'iit ol Commerce

Malcolm Baldngc

Secretary

National Bureiiu of Standards ErncM Ambk-r. Director Rational ^ntmn of Standards

(SLtvtxixtntt af (Attaints

Standard Reference Material 1633a

Trace Elements in Coal Fly Ash

This Standard Reference Material (SRM) is intended for use in the evaluation of analytical methods for the determination of constituent elements in coal fly ash or materials with a similar matrix. SRM 1633a is a fly ash that was sieved through a No. 170 sieve with a nominal sieve opening of 90 fim.

Certified Values of Constituent Elements: The certified values for the constituent elements are shown in Table 1. The

analytical techniques used and the analysts are given in Table 3. The certified values are based on results obtained by

reference methods of known accuracy or from two or more independent, reliable analytical methods. Noncertified

values are given for information only in Table 2.

Notice and Warnings to Users: This certification is invalid 5 years from date of purchase of the SRM. The constituents

certified or analyzed are reviewed periodically and may be updated to reflect improved measurement. Updated

certificates will be made available upon request.

Use: This material should be dried to a constant weight before using. Recommended procedures for drying are: (1) Vacuum drying for 24 hours at ambient temperature using a cold trap at or below —50 ° C and a pressure not greater than 30 Pa (0.2 rnm Hg); (2) drying for 2 hours in an oven at 105 ° C; (3) drying in a dessicator over P2O5 or Mg2C104.

Samples of the dried material weighing at least 250-mg should be used for analysis. When not in use the material should

be kept in a tightly sealed bottle. Source and Preparat ion of Materia!: The fly ash material was supplied by a coal fired power plant and is a product of Pennsylvania and West Virginia coais. It was selected as a typical fly ash and is not intended as a fly ash from a specific coal or combustion process. The material was sieved and blended for 2 hours in a Vee blender. The material was then removed and placed in a series of bulk containers from which specific samples were taken for homogeneity testing and

certification analysis. Twelve bottles were selected for the homogeneity test. Samples from each bottle wore analyzed for

cobalt, chromium, europium, iron, scandium, and thorium using nondestructive neutron activation analysis. The

observed standard deviations for both 50 and 250 mg sample sizes were consistent with counting statistics, indicating that

the fly ash is homogeneous within ± 5% (relative) based on these elements. The homogeneity testing and certification analyses v/ere performed in the NBS Center for Analytical Chemistry.

The overall direction and coordination of the analytical measurements leading to the initial certification were performed

in the Center for Analytical Chemistry under the chairmanship of L.A. Machlan. The technical and support aspects involved in the preparation, certification, and issuance of this Standard Reference

Material were coordinated through the Office of Standard Reference Materials by W.P. Reed and T.E. Gills.

Gaithersburg, MD 20899 Stanley D. Rasberry, Chief January 5, 1985 Office of Standard Reference Materials (Revision of certificate dated April 18, 1979)

(over)

50
Table 1. Certified Values of Constituent Elements Major Content

Constituents Wt. Percent Aluminum 14.3 ±1.0*

Iron 9.4 ±0.1 Potassium 1.88 ±0.06

Silicon 22.8 ±0.8

Calcium 1.11 ±0.01

Minor Content

Constituents Wt. Percent Magnesium 0.455 ± 0.010 Sodium 0.17 ±0.01

Trace Constituents Element Antimony

Arsenic Cadmium

Chromium

Copper

Manganese

Mercury

Nickel Lead

Content jixg/g

6.8 ± 0.4 145 ±15

1.00 ± 0.15 196 ± 6

118 ± 3 179 ± 8

0. 16 ±

127

72.4 :

0.01 4

0.4

Element Rubidium

Selenium

Strontium

Thorium

Thallium Uranium

Vanadium

Zinc

Content jzg/g

131 ± 2

10.3 ± 0.6 830 ± 30

24.7 ±

5.7 ±

10.2 ±

297 ±

220 ±

0.3

0.2

0.1 6

10

The uncertainties of the certified values are based on judgment and represent an evaluation of the combined

effects of method imprecision, possible systematic errors among methods, and material variability for samples

of 250-mg or more. (No attempt was made to derive exact statistical measures of imprecision because several methods were involved in the determination of most constituents).

Supplemental Information

Note: The following values are not certified because they are not based on the results of either a reference method

of two or more independent methods. These values are included for information only.

Table 2. Noncertified Values for Constituent Elements

Content Content Element Wt. Percent Element Mg/g

Barium 0.15 Beryllium 12 Titanium 0.8 Cerium 180

Sulfur 0.18 Cobalt 46 Cesium 11 Europium 4 Gallium 58 Hafnium 8 Molybdenum 29 Scandium 40 SRM 1633a Page 2

51
Table 3. Analytical Methods Used for Certified Constituent Elements

Method/

Element A B C D E F G H I Aluminum

Antimony

Arsenic Cadmium

Calcium

Chromium

Copper

Iron Lead

Magnesium

Manganese

Mercury

Nickel

Potassium R iihidiiim

Selenium

kJlllvUII Sodium

Strontium

Thallium

Thorium

Uranium

Vanadium

Zinc

Analytical Methods

A. Atomic Absorption Spectrometry or Flame Emission Spectrometry

B. Isotope Dilution Mass Spectrometry

C. Neutron Activation Analysis D. Polarography

E. X-ray Fluorescence Spectrometry

F. Inductively-Coupled Plasma Emission Spectrometry

G. Isotope Dilution Spark Source Mass Spectrometry

H. Gravimetry

I. Direct Coupled Plasma Emission Spectrometry

SRM 1633a Page 3 (over)

52
Analysts

NBS Center for Analytical

1. J. B. Baldwin

2. T. J. Brady

3. E. R. Deardorff

4. M. G. Dias

5. L. J. Powell

6. M. S. Epstein

7. R. F. Fleming

8. E. L. Garner

9. T. E. Gills

10. C. A. Grabnegger

11. J. W. Gramlich

12. R. R. Greenberg

13. S. Hanamura

14. S. H. Harrison

15. E. G. Heald

16. W. R. Kelly

17. H. M. Kingston

18. E. C. Kuehner

19. R. M. Lindstrom

20. L. A. Machlan

21. E. J. Maienthal

22. J. S. Maples

23. J. D. Messman

24. L. J. Moore

25. P. J. Paulsen

26. P. A. Pella

27. T. C. Rains

28. K. J. R. Rosman

29. T. A. Rush

30. P. A. Sleeth

31. R. L. Watters, Jr.

SRM 1633a Page 4

53
U. S. Department of Commerce

Malcolm Bajdnge

t

. "$ecreiary

'

National puroKU 6T$tandards

Ernest Umbler. Qirectcr

^National ^ttram of Standards

Certificate of (Analysis

Standard Reference Material 1634a

Trace Elements in Fuel Oil

This Standard Reference Material is intended for use in the evaluation of methods and the calibration of apparatus used

in the analysis of fuel oils and other materials with similar matrices for trace elements. SRM I634a is a commercial

"No. 6" residual fuel oil as defined by the American Society for Testing and Materials (ASTM). This SRM was certified using two or more independent methods of analysis and a single method that has been carefully evaluated with respect

to its accuracy and precision. Methods were selected to include those that are commonly used in the field and in laboratories. The certified values are given in table l and are based on at least a l.O g sample of the material which is the minimum

amount that should be used for analysis.

Table l Element

'

Content" /ug/g Element

'

Content

2

, Wt %

Lead 2.80 ± 0.08 Manganese*

1

' 1 0.19 ± 0.02 Sulfur U' h 2.85 ± 0.05

Nickel

d '

1' 29 ± 1 Selenium

b,t 0.15 ± 0.02 Sodium h,t 87 ±4

VanadiumJ ' h ' d 56 ±2

Zinc 2.7 ±0.2

1. Method ol Analysis

a. Isotope Dilution Mass Spectrometry e. Inductive Coupled Plasma Spectrometry

b. Neutron Activation Analysis f. Gravimetry

c. Atomic Absorption Spectrometry g. Ion Chromatography

d. Spark Source Mass Spectrometry h. X-ray Fluorescence

2. The uncertainties shown are expressed at the95%conlidence level and include any observed

material heterogeneity, possible method differences, and errors of measurement. NOTICE: The certification of SRM 1634a is valid for 3 years from date of purchase.

The statistical analysis of the certification data was performed by K.R. Eberhardt of the Statistical Engineering Division.

The overall direction and coordination ol the analytical measurements leading to certification were performed in the Inorganic Analytical Research Division, E.L. Garner, Chief.

The technical and support aspects involved in the preparation, certification, and issuance of this Standard Reference

Material were coordinated through the Olfice of Standard Reference Materials by T.E. Gills.

Washington, D C. 20234 George A. Uriano, Chief February 19, 1982 Office of Standard Reference Materials

(over)

54
PREPARATION, TESTING, AND ANALYSIS

A random scheme for sample selection was used in assessing the homogeneity of this material. The elements calcium and vanadium were measured by x-ray fluorescence as indicators of homogeneity. Based on these elements, the material

variability for this lot of 1634a is within ±2% relative.

Long-term stability of this SRM has not been rigorously established. When not in use, the material should be stored

in the tightly sealed bottle. NBS will continue to monitor this material and any substantive change in its certification

will be reported to the purchasers.

Analyses for the various elements were performed in the Center for Analytical Chemistry, Inorganic Analytical Research

Division, by I. L. Barnes, T.A. Butler, E.R. Deardorff, J.W. Gramlich, S. Hanamura, H.M. Kingston, W.F. Koch,

CM. Lambert, R.M. Lindstrom, L.A. Machlan, J.R. Moody, P.J. Paulson, T.C. Rains, T.A. Rush, and R. Zeisler. The homogeneity studies were performed in the Gas and Particulate Science Division by P. A. Pella and M. Watson. The physical properties were measured by S. Weeks, Materials Chemistry Division, Center for Materials Science. The values and physical properties data in table 2 are nut certified because they are based on a non-reference method or were not determined by two or more independent methods. The values are included for information only.

Table 2

Supplemental Information

Element Content, /ug/g Physical Properties

Arsenic ( 0.12 ) Beryllium ( 0.006 ) Flash Point 64 °C

Bromine «1 ) Cadmium ( 0.002 ) Kinematic Viscosity 321.66 Calcium ( 16 ) at 50 °C

Chlorine ( 31 ) Pour Point

1 -10 °C

Chromium ( 0.7 ) Cobalt ( 0.3 ) Density at 20 °Cd 0.995 g/cm3

Iron ( 31 ) Mercury (<0.002 ) Molybdenum ( 0.12 )

Methods Used for Physical Tests

a. ASTM D-93-80 Flash Point by Pensky-Martens Closed Tester

b. ASTM D445-79 Kinematic Viscosity of Transparent and Opaque Liquids

c. ASTM D97-66 (1978) Pour Point ol Petroleum Oils

d. ASTM D4052-81 Density and Relative Density ol Liquids by Digital Density Meter (modified)

55
L

r .S Department ot Commerce

Juanita M. Kreps

Secretary

Nalional Bureau of Standards

Ernest Ambler. Director Rational ^ttram of Standards

Certificate of (Analgia

Standard Reference Material 1635

Trace Elements in Coal

(Subbituminous)

This Standard Reference Material is intended for use in the calibration of apparatus and the evaluation of

techniques employed in the trace element analysis of coal and similar materials. The material should be dried without heat to constant weight before use. The recommended procedures for drying are either vacuum drying at ambient temperature for 24 hours, or

freeze drying in which the drying chamber is kept at room temperature. The moisture content of this material is approximately 20%. Because of this moisture level, it is recommended that small individual samples be dried immediately before use. Drying of large samples may result in a violent discharge of water vapor and resultant

loss of sample. When not in use, the material should be kept in a tightly sealed bottle and stored in a cool, dark

place. Long-term (>1 year) stability of this SRM has not been rigorously established. NBS will continue to monitor this material and any substantive change will be reported to purchasers.

The certified values given below are based on at least a 250-mg sample of the dried material, the minimum

amount that should be used for analysis.

Element

1 Content, uglg Element

1 Content, yug/g2

. . a ,b Arsenic 0.42 ±0.15 Thorium0 ' 0 0.62 ±0.04

j c,d,e Cadmium 0.03 ± 0.01 Uranium0 0.24 ±0.02

Chromium0, 2.5 ±0.3 Vanadium0 ' 8 5.2 ±0.5

/-> a,c,e Copper 3.6 ±0.3

c,d Zinc 4.7 ±0.5

Lead

c,d 1.9 ±0.2

Manganese

3 ' e 21.4 ± 1.5 Element' Wt. %

2

Nickel

c,d 1.74 ± 0.10

, c,d,e,f Iron 0.239 ± 0.005 Selenium

3 ' c 0.9 ±0.3 Sulfurfh

0.33 ±0.03

1. Methods of Analysis:

a. Atomic Absorption Spectrometry e. Neutron Activation

b. Photon Activation f. Spectrophotometry

c. Isotope Dilution Mass Spectrometry g- Flame Emission Spectrometry

d. Polarography h. Gravimetry

2. The estimated uncertainty is based on judgment and represents an evaluation of the combined effects of method imprecision, possible systematic errors among methods, and material variability for samples

of 250-mg or more. (No attempt was made to derive exact statistical measures of imprecision because

several methods were involved in the determination of most constituents.) The overall direction and coordination of the analytical measurements leading to this certificate were performed

in the Analytical Chemistry Division under the chairmanship of L. J. Moore. The technical and support aspects involved in the preparation, certification, and issuance of this Standard

Reference Material were coordinated through the Office of Standard Reference Materials by W. P. Reed. Washington, D.C. 20234 George A. Uriano August 22, 1979 Office of Standard Reference Materials (Revision of Certificate (over) dated 1-23-78)

56
PREPARATION, TESTING, and ANALYSIS

This material was prepared from one lot of subbituminous coal from the Eagle Mine of The Imperial Coal Company, Erie, Colorado. The material was ground and sieved thru a No. 65 (230 /zm) sieve by the Colorado

School of Mines Research Institute. The material was then blended in a V-type blender. Samples for homogeneity testing were taken from the top, middle, and bottom of three bulk containers of coal, and analyzed by neutron activation analysis for sodium, scandium, chromium, iron, cobalt, lanthanum,

cerium, and thorium. Replicate analyses of 250-mg samples indicated a homogeneity for these elements of ± 2. 5% (relative) except for chromium, which was homogeneous within counting statistics of ± 6%. The homogeneity measurements were performed in the NBS Analytical Chemistry Division by R. R. Greenberg. Certifi- cation analyses for the various elements were made in the NBS Analytical Chemistry Division by T. J. Brady,

B. I. Diamondstone, L. P. Dunstan, M. S. Epstein, M. Gallorini, E. L. Garner, T. E. Gills, J. W. Gramlich,

R. R. Greenberg, S. H. Harrison, G. M. Hyde, G. J. Lutz, L. A. Machlan, E. J. Maienthal, J. D. Messman,

T. J. Murphy, and T. C. Rains. The following values are not certified because they were based on a non-reference method, o were not deter- mined by two or more independent methods. They are included for information only.

Element

Content

(Mg/g)

Antimony

Cerium

(0.14)

(3.6)

(0.65)

(0.06)

(1.05)

(0.29)

(0.63)

(wt. %)

Cobalt Europium

Gallium Hafnium

Scandium

Aluminum (0.32)

(0.24)

(0.02)

Sodium

Titanium

57
S. Department of Commerce

Philip M. Klutznick

Secretary

National Bureau of Standards

Ernest Ambler, Director mmn of Jiiandanb

Standard Reference Materials 1836a, 1637a, 1638a

Lead in Reference Feel

This Standard Reference Material is intended for use in the calibration of instruments and the evaluation of

techniques used for the analysis of lead in gasoline. Samples of the reference fuel are supplied at four lead concentrations, nominally 0.03, 0.05, 0.07, and 2.0 g/gal. These Standard Reference Materials are made up of

various combinations of the four concentrations, see Table 1 on the back of this certificate.

Certified Values: The certified values for the lead content, expressed in units of /jg/g, are shown below. These

certified values are based on results obtained by isotope dilution mass spectrometry, a definitive method of known accuracy.

Vial

Identification

1

II

III

IV

Nominal

Lead Concentration

g/gal

0.03

0.05

0.07

2.0

Certified Lead Concentration Mg/g

11.2 ± 0.2

a

18.8 ±0.1

25.1 ±0.2

764 ±4

aThe uncertainties shown are the 95 percent confidence intervals for a single determination plus allowance for known

sources of possible error.

Use: The certification of these materials is based on a minimum sample size of 1.0 gram and only samples equal

to or greater than 1 gram should be used for any analytical determination to be related to the certified values of

this certificate.

Stability: The ampoules should be stored at temperatures between 10-30 °C. They should not be exposed to intense sources of radiation, including ultraviolet lamps or sunlight. The ampoules should be opened only at time of use. No attempt should be made to keep the material in opened ampoules for future use.

Source and Preparation of Material: The reference fuel containing lead at the four concentration levels were

supplied by Phillips Petroleum Company of Bartlesville, Oklahoma. The 91-octane number (Research Octane Number) reference fuel is a mixture of 91 percent by volume (0.899 mole-fraction) 2,2,4,-trimethylpetane and

9 percent by volume (0.101 mole-fraction) n-heptane. Lead was added in the form of tetraethy! lead motor mix.

Analyses leading to certification were performed in the Inorganic Analytical Research Division by T. J. Murphy

and 1. L. Barnes. The overall direction and coordination of the technical measurements leading to this certificate were performed

by E. L. Garner, Chief of the Inorganic Analytical Research Division. The technical and support aspects involved in the preparation, certification, and issuance of these Standard

Reference Materials were coordinated through the Office of Standard Reference Materials by T. E. Gills.

Washington, D.C. February 5, 1980

20234 George A. Uriano, Chief

Office of Standard Reference Material:

(over)

58
Table 1 Composition of SRM's 1636a, 1637a, 1638a SRM Nominal Concentration No. Units.

1636a 0.03,0.05,0.07, 2.0 g/gal 3 vials each

1637a 0.03,0.05,0.07 g/gal 4 vials each

1638a 2.0 g/gal 12 vials each

Additional Information: Because the volume of the reference material varies with temperature, the various concentrations of lead are certified by weight, i.e., micrograms of lead per gram of fuel. For convenience to the

user, information is given for the concentration in the customary units, grams per gallon and grams per liter, at 23 °C. These data are shown in Table 2.

Table 2

Vial

Identification

Nominal

Concentration

Density

2

at 23 °C

8/ mL

Lead Concentration

6

at 23 °C

K/gal g/L

I 0.03 0.6888 0.0292 0.0077

11 0.05 0.6888 0.0490 0.0129

111 0.07 0.6888 0.0654 0.0173

IV 2.0 0.6895 1.994 0.527

a The density (p) of each concentration was measured at 23 °C using a modification of AST M Method D12I7. The temperature coefficient of these materials is 0.0008 g.(mL) (°C)

b The conversion of the certified values (Mg/g) to Qg/gal) and C(g/L) was done using equations 1 and 2

respectively.

Eq. 1 C^/gai= - 3.785 p C MS/8

10

3

Eq. 2 C^l =

10

J

59
U, S. Depart m^rW/of Commerce Malcolafrfialdr ige

National Ti Ernest Ia Standards

ircctor Rational ^uram of jltarularrta

Certificate of ^nal^sis

Standard Reference Material 1641b

Mercury in Water - ug/ml_

This Standard Reference Material is intended for use in the primary calibration of instruments and techniques used for the determination of mercury in natural waters. It is designed for the preparation of calibration solutions and for use as a "spike" sample in a "method-of-additions" type analytical procedure.

The estimated uncertainty, 0.04 ugl mL , includes the effects of the observed random variability and an upper bound

estimate of possible systematic errors. The random variability expressed as two standard deviations of the certified value is ± 0.02 ixgj mL and reflects both internal and between-method variabilities for the NBS atomic absorption and

neutron activation measurements. The upper bound estimate of possible systematic errors is ± 0.02 /jg/mL.

Stability : The long-term stability of trace mercury solutions has been a constant problem. At or below the/ag/ mL level, mineral acid stabilization is not sufficient. However, the addition of trace gold to a nitric acid solution of mercury was

found to stabilize the concentration of mercury in the two previous issues of this Mercury in Water SRM. Although the mercury concentration of SRM 1 64 1 b has not changed significantly in eight months, the stability will continue to be monitored. However, SRM 1641b should not be used after ONE YEAR FROM date of purchase.

Precautions : Traces of mercury vapor are present in most laboratory situations. Therefore, contamination of reagents, equipment, and common laboratory materials may cause a severe problem. Apparatus for analysis at this level must be scrupulously cleaned immediately before use, and only the purest-grade reagents, with respect to mercury, should be

used. SRM 164 1 b was prepared by J.R. Moody. Atomic absorption analyses were performed by T.C. Rains and T. A. Butler; and neutron activation analyses by R. Zeisler, Inorganic Analytical Research Division. The overall direction and coordination of technical measurements leading to certification were performed under the chairmanship of E.L. Garner, Inorganic Analytical Research Division. The statistical evaluation was done by

The technical and support aspects involved in the preparation, certification, and issuance of this Standard Reference

Material were coordinated through the Office of Standard Reference Materials by R. Alvarez. A nalytical: Two independent techniques were used in the certification of this Standard Reference Material: atomic

absorption spectrometry and instrumental neutron activation analysis.

Use: This SRM consists of six ampoules, each containing approximately 20 mL of solution. Dilutions may be made by

the addition of accurately measured aliquots, withdrawn from an ampoule, to known volumes of pure or natural water

(spiking mode) using conventional techniques. Blank determinations should be made of the water and other reagents

used.

The reliability of the dilution process will depend on the care exercised and the reliability of the calibration of the volumetric apparatus, which should have an uncertainty no greater than one percent. The volumetric apparatus should

be scrupulosuly cleaned. Diluted solutions should be used without delay, as their stability cannot be guaranteed.

SRM 1642b, which is certified for mercury at the ng/mL level, should be used to validate methodology for these concentrations. The long-term retention of unused portions of this Standard Reference Material in opened ampoules

is not recommended.

Washington, D.C. 20234 George A. Uriano, Chief

April 13, I9IJ3 Office of Standard Reference Materials

Mercury concentration 1.52 ±0.04 Mg/mL

R.C. Paule.

60
U. S. Department of Commerce

Malcolm Baldrige

"Secretary

National Bureau of Standards

Ernest Ambler. Director

This Standard Relerence Material is intended for use in the primary standardization of instruments and techniques used

lor the determination of mercury in water. It is intended for use as received, without dilution or other alteration. The

concentration of mercury in this Standard Reference Material is at, or near, the detection limit of most commercial

instruments used lor the determination of mercury in water. It is to be used for the primary standardization of these instruments near these detection limits where many analytical problems occur.

I he estimated uncertainty, 0.06, includes the effects of the observed random variability and an upper bound estimate of

possible systematic errors. The random variability expressed as two standard deviations of the certified value is ± 0.04 and rellects both internal and between-method variabilities for the NBS atomic absorption and neutron activation measurements. The upper bound estimate of possible systematic errors is ± 0.02.

Stability: Trace mercury solutions have been a constant problem when long-term storage is required. Below the /ug mL

Icvel, mineral acid stabilization is not sufficient. A stabilizing technique has been applied to this Standard Reference

Material that allows lor prolonged storage. Gold, as the tetrachloride, has been added in a concentration 10 times that of

the mercury. The gold ion, in conjuction with the normal mineral acid, has proven to be an effective stabilizer. It is recommended that this Standard Reference Material not be used after ONE YEAR FROM DATE OF PURCHASE.

Precautions: Traces of mercury vapor are present in most laboratory situations. Therefore, contamination of reagents, equipment, and common laboratory materials is a severe problem. Apparatus for analyses at this level must be scrupulously cleaned immediately before use, and only the purest-grade reagents should be employed. After use, the

bottle should be capped tightly and placed inside the aluminized bag, which should be folded and sealed with a sealing

tape. I his saleguard will assist in maintaining the integrity ol the sample.

Analytical: Two independent techniques were used in the certification of this Standard Reference Material: atomic

absorption spectroscopy and neutron activation analysis.

Use: This Standard Reference Material should be used, as received, without dilution. It may be carried through the chemical manipulations required lor the analytical procedure normally used for the analysis of natural waters. This Standard Reference Material was prepared by J.R. Moody. Atomic absorption analyses were performed b\ I.C. Rams and T.A. Butler and neutron-activation analyses were performed by R. Zeisler. The overall direction and coordination ol the technical measurements leading to the certification were performed

under the chairmanship of E.L. Garner. The statistical evaluation was done by R.C. Paule. The technical and support aspects involved in the preparation, certification, and issuance of this Standard Reference

Material were coordinated through the Office of Standard Reference Materials by R. Alvarez.

Washington, D.C. 20234 George A. Uriano, Chief

July 15, 1982 Office of Standard Reference Materials

Standard Material 1642b

Mercury in Water - ng/mL

Mercury Concentration 1.49 ± 0.06 ng/mL

61
U. S. Departrn^rttfof Commerce MaIcolat^fialdr ige 'Secfrtaryj'

Erncsi National ?unHfeoT3tandard$ l^m^r^pi rector Rational $vcrtavt of j^tanriartb

Standard Reference Material 1643b

Trace Elements in Water

This Standard Reference Material (SRM) is intended primarily for use in evaluating the accuracy of trace element

determinations in filtered and acidified fresh water and for calibrating instrumentation used in these determinations. SRM 1643b consists of approximately 950 mL of water in a polyethylene bottle, which is sealed in an aluminized bag to maintain stability. SRM 1643b simulates the elemental composition of fresh water. Nitric acid is present at a concentration of 0.5 moles per liter to stabilize the trace elements.

Concentrations of Constituent Elements: The concentrations of the trace elements that were determined are shown in Table 1 . The certified values are based on results obtained either by reference methods of known accuracy or by two or more independent, reliable analytical methods. Noncertified values, which are given for information only, appear in parentheses.

Notice and Warnings to Users:

Expiration of Certification: This certification is invalid two years after the shipping date.

Precautions: The bottle should be shaken before use because of possible water vapor condensation. To prevent possible

contamination of the SRM, do not insert pipets into the bottle. After use, the bottle should be capped tightly and placed

inside the aluminized bag, which should be folded and sealed with sealing tape. This safeguard will protect the SRM

from possible environmental contamination and long-term loss of water.

Elemental determinations of ng/g levels are limited by contamination. Apparatus should be scrupulously cleaned and

only the purest grade reagents employed. Sampling and manipulations, such as evaporations, should be done in a clean environment, for example, a Class 100 clean hood. The overall direction and coordination of the technical measurements leading to this certification were performed under

the direction of E. Garner, Chief of the Inorganic Analytical Research Division. The technical and support aspects involved in the preparation, certification, and issuance of this Standard Reference

Material were coordinated through the Office of Standard Reference Materials by R. Alvarez.

Washington, DC 20234 Stanley D. Rasberry, Chief May 18, 1984 Office of Standard Reference Materials

(over)

62
(Table 1) Concentrations of Constituent Elements

Element

Concentration

*

ng/g Element Concentration*

ng/g

Arsenic

1,5 (49)** Lead 23.7 ± 0.7 a 2a ,2b,

5

Barium 44 ±2 \» 1,2a,

3

Manganese 28 ±2

Beryllium

1 ,2a 19 ±2 Molybdenum23,5 85 ±3

Bismuth' (11) Nickel

23 3 49 ± 3 Boron

2" (94) Selenium

1,5 9.7 ± 0.5 Cadmium215 ' 3 5 20 ± 1 Silver

1,5 9.8 ± 0.8 Chromium46 18.6 ± 0.4 Strontium

23,5 227 ± 6 Cobalt

1 ' 5 26 ± 1 Thallium 8.0 ± 0.2 „ 3,4b Copper 21.9 ± 0.4 Vanadium4b 45.2 ± 0.4

, 2a , 4a ,

5

Iron 99 ±8 „. 2a,

5

Zinc 66 ± 2

* The estimated uncertainty is based on judgment and represents an evaluation of the combined effects of method imprecision and possible systematic errors among methods. To convert to nanograms per milliliter, multiply by the density of the S R M

.

The density at 23 °C is 1.017 grams per milliliter. Values in parentheses are not certified.

1 . Atomic absorption spectrometry, electrothermal

2. Atomic emission spectrometry,

a. dc plasma

b. flame

3. Laser enhanced ionization flame spectrometry

Isotopic dilution mass spectrometry,

a. resonance ionization

b. thermal ionization Neutron activation, instrumental

Source and Preparation of Material: SRM 1643b was prepared at the U.S. Geological Survey, National Water Quality

Laboratory, Arvada, Colorado, under the direction of V.J. Janzerof that laboratory and J. R. Moody of the NBS Center

for Analytical Chemistry. Only high-purity reagents were used and the containers were acid-cleaned and sterilized before

use. In the preparation, a polyethylene cylindrical tank was filled with distilled water and sufficient nitric acid to make

the solution approximately 0.5 moles HNO3 per liter. Solutions containing known amounts of calcium, sodium,

magnesium, potassium, and the elements to be determined were added to the acidified water solution with constant

stirring. After thoroughly mixing, the solution was filtered, sterilized, and then transferred to one-liter polyethylene

bottles. The approximate concentrations, in ^g/mL, of Ca, Na, Mg, and K are respectively 35, 8, 15, and 3.

Analysts:

Center for Analytical Chemistry, National Bureau of Standards

1. K. A. Brletic

2. T. A. Butler

3. E. C. Deal

4. M. S. Epstein

5. J. D. Fassett

6. K. Fitzpatrick

7. H. M. Kingston

8. R. M. Lindstrom

9. L. A. Machlan

10. J. R. Moody

11. L. J. Powell

12. T. C. Rains

13. T. A. Rush

14. S. F. Stone

15. G. C. Turk

16. R. L. Watters, Jr.

17. R. Zeisler

h3
S. Department of Commerce

Malcolm -fialdnge

"gecrelary

National Burwu oTSundards

Erncsi Umb^tr, Director

Rational ^Suram of Standards

Certificate

Standard Reference Material 1644

Generator Columns for Polynuclear Aromatic Hydrocarbons

S RM 1 644 is intended to provide accurate concentrations of anthracene, benzo(a) anthracene ( 1 ,2-benzanthracene), and

benzo(a)pyrene (3,4-benzpyrene) in water. The SRM consists of three 50 cm x 0.6 cm (coiled) stainless steel tubes, each packed with fine quintus quartz (sea sand) coated with approximately 0.5 percent by weight of the polynuclear aromatic hydrocarbon (PAH) of interest.

Principle of Operation: A saturated aqueous solution of the PAH of interest is generated by flowing high-purity water

slowly through the column. Because the aqueous solubility of a compound is a well-defined thermodynamic quantity, a

saturated solution has a fixed concentration (1,2, 3).

Equilibration and Use of Generator Columns: To equilibrate a new column before initial use, purge with high-purity water, such as commercial HPLC grade water. The volume required for equilibration of each column is: 500 mL for anthracene, 1000 mL for benzo(a)anthracene, and 500 mL for benzo(a)pyrene. After equilibration, pump the high-purity water at a constant temperature (±0. 1 °C) through the column at a flow rate between 0.1 and 5 mL/min to produce a

saturated solution. Record the temperature. The solution should be used immediately after generation to avoid sorption

losses.

If either the temperature is changed by as much as 1 °C or the flow is interrupted for less than one hour, pump 25 mL

water through the column under the new conditions to restore equilibrium prior to sample collection. However, if the flow is interrupted for more than one hour, pump 50 mL water prior to sample collection. During periods of frequent use, a column can be kept equilibrated by maintaining a steady, but low, flow rate of approximately 0. 1 mL/min through the column. The flow rate can be increased to collect a large volume of sample and then decreased again. Columns should be purged with 10 liters of oil-free nitrogen prior to storage periods of more than one month.

Certified Concentrations: When used as directed, these columns generate saturated solutions. The concentrations of the compounds in these solutions at temperatures between 10 and 30 °C were determined by two independent analytical methods. The data obtained were combined by fitting an empirical expression of the form ln[Conc] = A + B(l/T) +

C(l/T ) by least squares. In this equation, ln[Conc] is the natural logarithm of the concentration, T is the absolute temperature, and A, B, and C are constants for each compound. The derived equations for anthracene,

benzo(a)anthracene, and benzo(a)pyrene were used to calculate the certified concentrations at one degree intervals between 10 and 30 °C. These certified concentrations are given in Tables I-III.

Service Life of Columns: Generator columns for anthracene, benzo(a)anthracene, and benzo(a)pyrene are certified for

either two years or for total aqueous purge volumes of 7.5 x 10 , 3 x 10 , and 1.5 x 10 liters, respectively, whichever comes first.

Consultation on the statistical design of the experimental work and statistical analysis of the data was provided by

K. R. Eberhardt of the Statistical Engineering Division. Coordination of the technical measurements leading to certifi- cation was performed by W. E. May, R. A. Velapoldi, and H. S. Hertz. Technical measurements leading to the develop- ment and certification of SRM 1644 were performed by the following members of the Center for Analytical Chemistry:

W. E. May, J. M. Brown-Thomas, W. J. Sonnefeld, R. A. Velapoldi, and P. A. White. The technical and support aspects concerning the certification and issuance of this Standard Reference Material were

coordinated through the Office of Standard Reference Materials by R. Alvarez.

Washington, D.C. 20234 George A. Uriano, Chief

April 27, 198 1 Office of Standard Reference Materials

(over)

64
The anthracene generator column, after equilibration, produces aqueous solutions that contain very small amounts of phenanthrene. Because of its relatively high solubility (1000 Mg/ kg), residual amounts of phenanthrene are depleted from

the column at a rapid rate. The benzo(a)anthracene generator column, after equilibration, produces aqueous solutions that contain as much as

0.3 figl kg anthracene in addition to the certified concentrations of benzo(a)anthracene. The concentration of anthracene

in the generator column effluent varies with time (volume) and, therefore, is not certified. The benzo(a)pyrene generator column, after equilibration, produces aqueous solutions that contain as much as

0. 1 Mg/kg benzo(a)anthracene and 1 Mg/kg chrysene in addition to the certified concentrations of benzo(a)pyrene. The

concentration of these non-analyte components vary with time and, therefore, are not certified.

Analyses of the Saturated Aqueous Solutions: The concentrations of the saturated aqueous solutions of anthracene,

benzo(a)anthracene, and benzo(a)pyrene in the effluent from the respective generator columns were determined by two

independent analytical techniques. The first technique was high-performance liquid chromatography (HPLC). It involved quantitative extraction of the PAH of interest from the aqueous effluent by an "extractor column" packed with an octadecylsilane (Cis) bonded phase; use of an acetonitrile-water eluant to transfer components from the extractor column to an analytical Cis column for separation of the analyte from non-analyte components; and detection of the analyte by measuring its absorbance at 254 nm. The second technique involved the use of a "standard addition"

spectrofluorimetric technique for "on stream" analysis. The aqueous effluent from the generator column was mixed with PAH standards dissolved in acetonitrile and the PAH concentration of the resultant mixture was determined by

fluorescence at the following excitation (Ae*) and emission (ktm) wavelengths: anthracene, X«x = 254 nm, Xem = 384 and

404 nm; benzo(a)anthracene, keX = 290 nm, kcm = 395 nm; benzo(a)pyrene, keX = 296 nm, Ac, = 414 nm. The PAH

effluent concentration was determined mathematically. Where necessary, corrections for inner filter effects or the emission-absorbance contributions by impurities were made to obtain the values for determining the certified PAH

concentrations listed in Tables I-III.

References:

1. May, W. E., The Solubility Behavior of Polycyclic Armomatic Hydrocarbons in Aqueous Systems, American

Chemical Society Advances in Chemistry Series 185.(7), 143-192 (1980).

2. May, W. E., Wasik, S. P., and Freeman, D. H., Determination of the Aqueous Solubility of Polynuclear Aromatic

Hydrocarbons by a Coupled-Column Liquid Chromatographic Technique, Anal. Chem. 50, 1 (1978).

3. Schwarz, F. P. and Miller, J. M., Determination of the Aqueous Solubilities of Organic Liquids at 10°C, 20°C, and

30 °C by Elution Chromatography, Anal. Chem. 5£ 2162-2164 (1980).

65
Table I. Certified Aqueous Concentrations of Anthracene and Their Uncertainties, in Micrograms/ Kilogram and

Nanomoles/ Liter, as a Function of Temperature

Temperature Concentration and Its Uncertainty

1 , °C Mg/kg nmol/L

10 16.6 ± 0.7 93.1 ± 4.0

11 17.6 ± 0.6 98.7 ± 3.6

12 18.7 ± 0.6 105 ± 3.3

13 19.8 ± 0.5 111 ± 3.1 14 21.1 ±0.5 118 ± 2.9

15 22.4 ± 0.5 126 ± 2.9 16 23.8 ± 0.5 134 ± 2.9

17 25.4 ± 0.5 142 ± 2.9

18 27.0 ± 0.5 151 ± 3.0

19 28.8 ± 0.5 161 ± 3.1 20 30.7 ± 0.6 172 ± 3.2

21 32.8 ± 0.6 184 ± 3.2 22 35.0 ± 0.6 196 ± 3.2 23 37.4 ± 0.6 210 ± 3.2 24 39.9 ± 0.6 224 ± 3.3 25 42.7 ± 0.6 239 ± 3.7 26 45.7 ± 0.8 256 ± 4.4 27 48.9 ± 1.0 273 ± 5.5 28 52.4 ± 1.3 293 ± 7.2 29 56.1 ± 1.7 313 ± 9.5 30 60.1 ± 2.2 336 ± 12

'"The uncertainties are 99 percent (Working-Hotelling) confidence bands for the entire regression curve. The difference between the true and certified concentrations should be less than the stated uncertainty at the 99 percent confidence

level.

66
Table II. Certified Aqueous Concentrations of Benzo(a)anthracene and Their Uncertainties, in Micrograms/ Kilogram

and Nanomoles/ Liter, as a Function of Temperature

Temperature Concentration and Its Uncertainty

1

, °c lip / ico nmAl / I

10 3.38 ± 1.2 14.8 ± 5.3

11 3.60 ± 1.1 15.8 ± 4.6 12 3.83 ± 0.91 16.8 ± 4.0

13 4.09 ± 0.79 17.9 ± 3.4 14 4.36 ± 0.68 19.1 ±3.0

15 4.65 ± 0.59 20.4 ± 2.6 16 4.96 ± 0.54 21.7 ±2.4

17 5.29 ± 0.55 23.2 ± 2.4 18 5.65 ± 0.60 24.8 ± 2.6 19 6.04 ± 0.68 26.4 ± 3.0 20 6.45 ± 0.77 28.2 ± 3.4 21 6.90 ± 0.87 30.2 ± 3.8 22 7.38 ± 0.94 32.3 ±4.1

23 7.90 ± 1.0 34.5 ± 4.4 24 8.45 ± 1.0 36.9 ± 4.5 25 9.05 ± 1.0 39.5 ± 4.6 26 9.69 ± 1.0 42.3 ± 4.6 27 10.4 ± 1.1 45.4 ± 4.7 28 11.1 ±1.2 48.4 ± 5.0 29 11.9 ± 1.3 51.9 ± 5.9 30 12.8 ± 1.7 55.8 ± 7.3 The uncertainties are 99 percent (Working-Hotelling) confidence bands for the entire regression curve. The difference between the true and certified concentrations should be less than the stated uncertainty at the 99 percent confidence

level.

67
Table III. Certified Aqueous Concentrations of Benzo(a)pyrene and Their Uncertainties, in Micrograms/ Kilogram and

Nanomoles/ Liter, as a Function of Temperature

Temperature Concentration and Its Uncertainty

1

, °C Mg/kg nmol/L

10 0.59 ± 0.06 2.34 ± 0.23

11 0.63 ± 0.05 2.50 ± 0.20

12 0.67 ± 0.04 2.65 ±0.17

13 0.71 ± 0.04 2.81 ±0.15

14 0.76 ± 0.03 3.01 ±0.12

15 0.81 ± 0.03 3.21 ±0.11

16 0.87 ± 0.03 3.44 ±0.10

17 0.93 ± 0.03 3.68 ±0.10

18 0.99 ± 0.03 3.92 ±0.11

19 1.06 ±0.03 4.19 ±0.12

20 1.13 ±0.03 4.47 ±0.13

21 1.21 ± 0.04 4.79 ±0.15

22 1.30 ±0.04 5.14 ±0.16

23 1.39 ± 0.04 5.50 ±0.16

24 1.49 ±0.04 5.89 ±0.17

25 1.59 ±0.04 6.28 ±0.17

26 1.71 ±0.04 6.76 ±0.18

27 1.83 ±0.05 7.23 ±0.19

28 1.96 ±0.05 7.74 ± 0.22 29 2. 1 1 ± 0.07 8.33 ± 0.27 30 2.26 ± 0.09 8.92 ± 0.35 The uncertainties are 99 percent (Working-Hotelling) confidence bands for the entire regression curve. The difference between the true and certified concentrations should be less than the stated uncertainty at the 99 percent confidence

level.

68
U. S. Department ol Commerce

Malcolm Baldnge

Secretary

National Bureau of Sundards

Ernest Ambler. Director Rational ^mmtx of j$>imdntd%

Standard Reference Material 1 645

River Sediment

This Standard Reference Material (SRM) is intended for use for the calibration of apparatus and the vermcation of methods used in the analysis of river sediments and material with a similar matrix.

Certified Values of Constituent Elements: The certified values for the constituent elements are shown in Table I. The

analytical techniques used and the names and affiliations of the analysts are shown in Table 3. Certified values are based on results obtained by reference methods of known accuracy and analyses performed by two or more analysts; or

alternatively, from results obtained by two or more independent, reliable analytical methods. Noncertified values are given for information only in Table 2. All values are based on measurements made on a dried sample of at least 100 mg

for all constituents except iron and chromium for which a l-g sample was used.

Notice and Warnings to Users:

Expiration ol Certification: This certification is invalid 5 years from the date of purchase.

Stability: This material has been freeze-dried and is essentially free of moisture. However, its stability has not been

rigorously assessed. -NBS will continue to monitor this material and if substantive changes in certification occur the purchasers will be notified. The material should be kept in its original bottle and stored at temperatures between

10-30 °C. The material should be dried without heat to a constant weight before using. Recommended procedures for drying are: (1) drying for 24 hours using a cold trap at or below —50 °C and a pressure not greater than 30 Pa

(0.2 mm Hg); (2) drying for 24 hours in a desiccator over P2O5 or Mg (004)2.

Use : Material of this kind is intrinsically heterogeneous. Consequently, the analyst should endeavor to minimize any

segregation by thoroughly mixing the contents of the bottle by shaking and /or rolling before each use. in addition, when

taking a portion for analysis, the analyst should strive to remove as representative a sample as possible.

Source and Preparation oi Material: The material for this SRM was prepared from material dredged from the bottom of

the Indiana Harbor Canal near Gary, Indiana. The material was screened to remove foreign objects, freeze-dried, and

sieved to pass a No. 80 ( 180 Aim) screen. The material was thorougly mixed in a V-blender and bottled. The bulk material was radiation-sterilized to minimize alteration due to biological activity. The collection, freeze-drying and homogenization of this SRM were performed under the supervision and direction ol H.L. Rook, Gas and Particulate Science Division. The overall direction and coordination of the technical measurements leading to certification were performed under the chairmanship of J.K.. Taylor, Center for Analytical Chemistry.

The technical and support aspects involved in the preparation, current and previous certification, and issuance ol this Standard Reference Material were coordinated through the Office of Standard Reference Materials by T.E. Gills and W.P. Reed.

Washington, D C. 20234 George A. Uriano, Chief May 5, 1982 Office of Standard Reference Materials (Revision of Certificate dated 11-16-78* (over)

69
Homogeneity Assessment and Certification: The homogeneity of this material was established usinga minimum sample

size of 100 milligrams for all constituents except iron and chromium for which the sample size was 1.0 gram. Randomly selected bottles were used for the analytical measurements. Each analyst examined at least 6 different bottles, some of them measuring replicate samples from each bottle. Accordingly, it is believed that all bottles of this SRM have

substantially the same composition. Measurements and calibrations were made to reduce random and systematic errors

to no more than one percent, relative.

Table 1. Certified Values of Constituent Elements Major Constituents Minor Constituents

Content Content

Element wt. percent Element wt. percent Aluminum 2.26 ± 0.04 Magnesiumb 0.74 ±0.02 Chromium 2.96 ± 0.28 Sodium 0.54 ±0.01

Iron 11.3 ± 1.2 Zinc 0. 172 ±0.01

Potassium 1.26 ± 0.05

Trace Constituents

Content Content

Element Element Mg/g

J

Cadmium 10.2 ± 1.5 Nickel 45.8 ±2.9

Copper 109 ± 19 Thallium 1.44 ±0.07

Cobalt* 10.1 ± 0.6 Thorium 1.62 ±0.22

Lead 714 ±28 Uranium 1.11 ±0.05 Manganese 785 ±97 Vanadium 23.5 ±6.9

Mercury 1.1 ± 0.5

1

I he uncertainties ol the certified values lor the elements, except those noted by superscript "b;' include those

errors associated with both measurement and material variability. They represent the 95 percent tolerance

limits lor an individual sub-sample, i.e.. 95 percent ol the sub-samples from a unit of this SRM would be expected to have a composition within the indicated range of values 95 percent of the time.

' These elements are certified as a part of the NBS update certification program. For each element a "best value"

is given based on all methods ol measurement thai were used as well as a siantlartl error ol this value. Both are based on considerations ol variability both within and between analytical methods.

70
Supplemental Information

Note: The following values are not certified because they are not based on the results of either a reference method or of two or more independent methods. These values are included for information only.

Table 2. Noncertified Values for Constituent Elements

Element Calcium

Fluorine

Sulfur

Content

wt. Percent

(2.9)

(0.09)

(1.1)

Element Antimony

Arsenic Lanthanum

Scandium

Selenium

Content Mg/g

(51)

(66)

(9)

(2)

(1.5)

Additional Information: The values listed below are based on measurements made in one laboratory and while no

reason exists to suspect systematic bias in these numbers, no attempt was made to evaluate such bias attributable to either the method or the laboratory. The method used for each set of measurements is also listed. The indicated uncertainties are two times the standard deviation of the mean. These values are included for information only.

Table 3

Constituent

Kjeldahl Nitrogen

Total Phosphorus

Loss on Ignition (800 °C)

Oil and Grease (Freon)

Chemical Oxygen Demand (Dichromate)

Content

wt. percent

( 0.0797% ± 0.0048)

( 0.051% ± 0.001) [1] (10.72% ±0.28)

( 1.71% ±0.26) [3]

( 1 49,400 mg/ kg ± 9,000) [2]

References

1. ASTM Method E-350

2. Standards Methods for the Examination of Water and Waste Water, 14th Edition (1975), Section 508, pp 550.

3. Ibid., Section 502, pp 518.

71
1 able 3A Methods and Analysts

Method/

FI_ 11Cp m1 1 1 pnl L 1 1

1

A B c D E F

A 1 1 1 m inn m •

JA 1 O I, 1 1 1 V, #

r\ 1 1 1 1 1 1 K > 1 i \

V_ ilu 'A H m1 1 1

111U1 mIJ I

'Aa \c\ li_ I1u1 m1 1

1

o

IV_ nIIIrnU m11 11

1 1U1 mII

1

CnU-A It Co pper •

FI uon ne

Iron Lanthanum

Lead Magnesium

M anganese •

Mercury •

M' 1, „l

In ickel • •

Potassium •

Sea n diu m

Selenium • Sodium • •

Sull ur •

Thallium •

*\ horium •

U ranium • Vanadium • •

Zinc 0 •

Analytical Methods

A. Atomic Absorption Spectrometry

B. Isotope Dilution Mass Spectrometry

C. Neutron Activation Analysis

D. Polarography

E. D. C. Plasmas Atomic Emission Spectrometry

F. Ion C hromatography

72
Analysts

NBS Center for Analytical Chemistry

1. T. J. Brady

2. E. R. Deardorlf

3. L. P. Powell

4. M. S. Epstein

5. R. Filby

6. M. Gailorini

7. E. L. Garner

8. T. E. Gills

9. J. W. Gramlich

10. R. R. Greenberg

I I. S. H. Harrison

12. G. J. Lutz

13. L. A. Machlan

14. E. J. Maienthai

15. T. C. Rains

16. H. L. Rook

17. T. A. Rush

18. W. P. Schmidt

Cooperators

19. L. Kosta (Nuclear Chemistry Section, Josef Stefen Institute, Ljubljana, Yugoslavia

73
U. S. Department of Commerce

Malcolm Baldrige Secretary

National Buraiu of Standards

Ernest Ambter. Director

This Standard Reference Material is intended primarily for calibrating instrumentation and evaluating the reliability of

analytical methods for the determination of major, minor, and trace elements in sediments, and similar matrices.

Values of Constituent Elements: The certified values for the constituent elements are shown in Table 1. They are based on results obtained either by definitive methods or by two or more independent, reliable analytical methods. NonteriifieJ values, which are given for information only, appear in Table 2. All values are based on a minimum sample size of 500 mg of the material dried as indicated under "Instructions for Drying".

Notice to Users:

Expiration of Certification: The certification of this SRM will be invalid 5 years after date of shipping.

Use: The material should be kept in its original bottle and shaken well before each use. A minimum sample of 500 mg of

the dried material (see Instructions for Drying) should be used for any analytical determination to be related to a certified value of this certificate.

Statistical consultation was provided by K. R. Eberhardt of the Statistical Engineering Division. The overall direction and coordination of the technical measurements leading to certification were performed in the Inorganic Analytical Research Division, E. L. Garner, Chief. The technical and support aspects involved in the preparation, certification, and issuance of this Standard Reference

Material were coordinated through the Office of Standard Reference Materials by R. Alvarez.

Washington, D.C. 20234 George A. Uriano, Chief June 7, 1982 Office of Standard Reference Materials (Revision of Certificate (over)

Standard Reference Material 1646

Estuarine Sediment

dated I -6-82)

74
Table I. Certified Concentration of Constituent Elements

Element Aluminum"

Calcium

2b,c;6

Iron"

1

Element

Arsenic ' Cadmium

Chromium'

Cobalt"

1 ^

Copper

k '"

L

Lead '

'

Concentration,

weight %

6.25 ± 0.20

0.83 ± 0.03

3.35 ± 0.10

Concentration,

Mg/g

11.6 ± 1.3 0.36 ± 0.07 76 ±3

10.5 ± 1.3

18 ±3

28.2 ± 1.8 Atomic absorption spectrometry

a. cold vapor

b. graphite furnace

c. flame

d. hydride generation

Atomic emission spectrometry

a. dc plasma

b. flame

c. inductively coupled plasma

Element Magnesium' 1'' 2 ''

Phosphorus

2,1

' 6

Element Mi*.- ^

anganese '

la-4b Mercury '

Nickel'

b,2c ' 5

Vanadium""

1

' „. lb,c-2c-3b-5 Zinc ' ' '

Concentration,

weight %

1.09 ± 0.08 0.054 ± 0.005

Concentration,

Mg/g

375 ±20

0.063 ± 0.012

32 ±3

94 ± 1

138 ± 6

3. Isotope dilution mass spectrometry

a. thermal ionization

b. spark source

4. Neutron activation

a. instrumental

b. radiochemical

5. Polarography

6. X-ray fluorescence spectrometry

Notes: ( I .) Analytical values are based on the "dry-weight" of material (see Instructions for Drying). Mercury should be determined on samples without drying and the results adjusted to a "dry-weight" basis by determining the moisture

content of separate samples.

(2.) The estimated uncertainty for an element is based on judgment and represents an evaluation of the combined effects of method imprecision, possible systematic errors among methods, and material variability for samples 500 mg or more.

75
Table 2. Non-certified Concentrations of Constituent Elements

Note: The values shown in this table are not certified because they are not based on the results of either a definitive method or two or more independent analytical methods. These values are included, for information only, to provide

additional information on the composition.

Element

Potassium

Silicon Sodium

Concentration,

Weight %

(1.4)

(31)

(2.0)

Element

Sulfur Titanium

Concentration,

Weight %

(0.96)

(0.51)

Element Antimony

Beryllium

Cerium

Cesium

Europium

Germanium

Lithium

Concentration,

*g/8

(0.4)

(1.5)

(80)

(3.7)

(1.5)

(1.4)

(49)

Element Molybdenum

Rubidium

Scandium

Selenium

Tellurium Thallium

Thorium

Concentration,

(2.0)

(87)

(10.8)

(0.6)

(0.5)

(0.5)

(10)

Analysts:

Inorganic Analytical Research Division, National Bureau of Standards. 1. L. Barnes, M. B. Blackburn, C. G. Blundell,

T. A. Butler, M. S. Epstein, T. E. Gills, J. W. Gramlich, R. R. Greenberg, S. Hanamura, W. R. Kelly, H. M. Kingston,

L. Machlan, E. J. Maienthal, J. D. Messman, T. J. Murphy, T. C. Rains, T. A. Rush, R. Sedivy, and R. L. Watters, Jr.

Cooperating Analysts:

University of Tokyo, Tokyo, Japan; present address: Meteorological Research Institute; Tsukuba, lbaraki, Japan;

Y. Dokiya (NBS Guest Worker).

Division of Chemistry, National Research Council of Canada, Ottawa, Canada; S. Berman, A. Desaulniers, R. Sturgeon, A. Mykytuik, J. McLaren, V. Boyko, and P. Semeniuk.

Instructions lor Drying: Except for mercury, elements should be determined on samples that have been dried at I I0°C

for 2 hours. Mercury should be determined on undried samples. However, because the certified concentration is reported on a "dryweight" basis, the concentration determined on undried samples should be adjusted for the moisture content of the samples.

Source and Preparation of Material: The material for this SRM was supplied by R. Huggett, Virginia Institute of Marine Sciences, Gloucester Point, Va. It had been dredged from the Chesapeake Bay at a location: 37° 1 1. 1' N,

76° 1 7.

1

' W. The material was freeze-dried at Eastern Freeze-Dry Corporation, Lancaster, Pa., and radiation sterilized

at Neutron Products Inc., Dickerson, Md. At NBS, the sediment was sieved through a screen with openings of 1.00 mm

(No. 18) to remove coarse contaminants; ball-milled to pass a sieve with openings of 150 ^m (No. 100); thoroughly mixed

in a V-blender; placed in polyethylene bags; and bottled.

Homogeneity Assessment: A preliminary evaluation of homogeneity was made by instrumental neutron activation using samples of approximately 250 mg taken from various locations of the bulk materials. The samples were irradiated and the activities from radionuclides of Ce, Co, Cr, Cs, Eu, Fe, Rb, Sc and Th were counted. Except for Ce and Th, the observed sample-to-sample variations for the elements were approximately the same as the counting statistics indicating

satislactory homogeneity lor these elements within approximately 2%. The homogeneity of the material for As, Cd, Hg,

N. and Zn was evaluated by various analytical techniques using samples weighting 250 to 300 mg and found to be

satislactory. The homogeneity of the remaining certified elements was determined using sample weights not exceeding one gram. The uncertainties of the elemental concentrations in Table I take into account possible material inhomogeneity lor samples weighing 500 mg.

76
U. S. Department of Commerce

Malcolm Baldrige

rf5ecFe!ary

National Bureau of Standards

Ernest Ambler. Director

This Standard Reference Material (SRM) is intended tor use in the calibration of apparatus and evaluation of methods

used in the analysis of atmospheric particulate matter and materials with a similar matrix.

Certified Values of Constituent Elements: The certified values for the constituent elements are shown in Table I. The

analytical techniques used in the certification are shown in Table 3. The certified values are based on measurements of

6 to 30 samples by each of the analytical techniques indicated. Noncertified values are given lor information only in

Notice and Warnings to Users: This material is a naturally occuring urban dust to be used for analytical purposes only. It may contain a number of chemicals of unknown toxicities, therefore, the utmost caution and care must be exercised in its use.

Expiration of Certification: This certification is invalid after 5 years from date of purchase. Should it be shown to be

invalid prior to that time, users will be notified by NBS.

Stability: This material should be kept in its original bottle and stored at temperatures between 10-30 °C. It should not

be exposed to intense source of radiation, including ultraviolet lamps or sunlight. Ideally, the bottle should be kept in a desiccator at the recommended temperature.

Use: A minimum of 100 mg of the dried material (See Drying Instructions) should be used for any analytical determination to be related to the certified values of this certificate.

Source and Preparation of Material: This SRM was prepared from urban particulate matter collected in the St. Louis, Missouri, area in a baghouse specially designed for this purpose. The material was removed from the filter bags and combined in a single lot. This product was screened through a fine-mesh sieve to remove extraneous materials and

thoroughly blended in a V-blender. The material was then bottled and sequentially numbered. The material was

collected over a period in excess of 12 months and, therefore, is a time-integrated sample. While not represented to be

typical of the area in which it was collected, its use should typify the analytical problems of atmospheric samples obtained from industrialized urban areas.

Homogeneity Assessment: Randomly selected bottles were used for the analytical measurements. Each analyst

examined at least 6 bottles, some of them measuring replicates from each bottle. No correlation was found between measured values and the bottling sequence. Also, the results of measurements of samples from different bottles were not

significantly different than the measurements of replicate samples from single bottles. Accordingly, all bottles of this SRM have been assigned the same certified values of constituent elements.

Instructions for Drying: This material should be dried at 105 °C for 8 hours before use. Because the certified concentrations are reported on a "dry-weight" basis, the concentrations determined on undried samples should be adjusted for the moisture content of the samples.

The overall direction and coordination of the technical measurements leading to certification were performed under the chairmanship of J.K.. Taylor.

The technical and support aspects involved in the preparation, current and previous certification, and issuance of this Standard Reference Material were coordinated through the Office of Standard Reference Materials by T.E. Gills and W.P. Reed.

Washington, D.C. 20234 George A. Uriano, Chief May II, 1982 Office of Standard Reference Materials (Revision of Certificate (over) dated 1 1-16-78)

Standard Reference Material 1648

Urban Particulate Matter

1 able 2.

77
Table 1. Certified Values of Constituent Elements Major Constituents Minor Constituents

Element Aluminumh

Iron Potassium

6

Content

Wt. Percent

3.42 ± 0. 1

1

3.91 ± 0.10

1.05 ± 0.01

Element Lead

Sodiumb

Zinc

Content

Wt. Percent

0.655 ±0.008

0.425 ±0.002

0.476 ±0.014

Trace Constituents

Content Mg/g

Content

Element jug/g Element

Arsenic 115 ±10 Nickel 82 ±3

Cadmium 75 ±7 Selenium

6 27 ±1

Chromium 403 ± 12 Uranium 5.5 ±0.1 Copper 609 ±27 Vanadium6 140 ±3

I he uncertainties shown for the elements except those noted by superscripts include errors associated with both measure- ment and material variability. They represent the 95 percent tolerance limits for individual subsamples, i.e., 95 percent of

the subsamples from a single unit of this SRM would be expected to have a composition within the indicated range of values 95 percent of the time. These elements were recently certified as a part of the NBS update certification program. The values for the indicated constituent are the "best value" based on all measurement methods used and the associated uncertainty is expressed as the standard error considering variability within and between analytical methods.

Table 2. Noncertified Values for Constituent Elements

Note: The tollowing values are not certified because they are not based on the results of either a reference method or two

or more independent methods. These values are included for information only.

Major Constituents Minor Constituents

Content Content

Element Wt. Percent Element Wt. Percer

Sulfur (5.0) Chlorine (0.45) Magnesium (0.8) Titanium (0.40)

Trace Constituents

Content Content

Element Mg/g Element Mg/g

Antimony (45) Lanthanum (42) Barium (73 7) Rubidium (52) Bromine (500) Manganese (860) Cerium (55) Samarium ( 4.4) Cesium (3) Scandium ( 7) Cobalt (18) Silver ( 6) Europium ( 0.8) Thorium ( 7.4) Halnium ( 4.4) Tungsten ( 4.8) Indium ( 1.0) Iodine (20)

78
Supplemental Information The values listed below are based on measurements made in a single laboratory and are given for information only. While no reason exists to suspect systematic bias in these numbers, no attempt was made to evaluate such bias attributable to either the method or the laboratory. The method used for each set of measurements is also listed. The

uncertainties indicated are two times the standard deviation of the means.

Content

Constituent Wt. Percent

Nitrogen (NO3) ( 1.07 ± 0.06) Nitrogen (NH4) (2.01 ±0.08)

Sulfate (15.42 ±0.14)

Si02 (26.8 ±0.38)

Ficon Soluble ( 1.19 ± 0.47)

Methods Used:

Nitrate - Extraction with water and measurement by ASTM Method D992

Ammonia - NaOH addition followed by steam distillation and titration Sulfate - Extraction with water and measurement by ASTM D516

SiO: - Solution and measurement by ASTM Method E350

Freon Soluble - Extraction with Freon 1 1 3, using the Method described in "Standard Methods in Examination of Water

and Waste Water," 14th Edition, p. 518, American Public Health Association, Washington, D.C.

Analysts

Inorganic Analytical Chemistry Division

I. C. G. Blundell 9. J. W. Gramlich

2. R. W. Burke 10. R. R. Greenberg

3. T. A. Butler 1 1. L. A. Machlan

4. E. R. Deardorff 12. E. J. Maienthal

5. B. [. Diamondstone 13. T. J. Murphy

6. M S. Epstein 14. L. P. Powell

7. M Gallorini 15. T. C. Rains

8. E. L. Garner 16. T. A. Rush

79
Table 3 Methods and Analysis

Method/

Element A B c G H I

Ag •

Al * • As * •

Ba *

Br • Cd • • * • Ce *

CI • Co * Cr o *

Cs • Cu • • • Eu •

Fe • • * •

Hf •

I * •

In • K • • La • Mg * Mn o • • Na • * •

Ni o o • Pb o o • Rb •

S • Sb *

Sc *

Se • • Sm

Th

TiU •

V • w

Zn • • •

Analytical Methods

A. Atomic Absorption Spectrometry

B. Isotope Dilution Mass Spectrometry

C. Neutron Activation Analysis

D. Polarography

E. Spectrophotometry

F. Photon Activation Analysis G. Ion Chromatography

H. D.C. Plasma Atomic Emission Spectrometry

I. Flame Emission Spectrometry

80
Appendix III.

Guide for

RequestingDevelopmentof

StandardReference Materials

The National Bureau of Standards develops Standard Reference Materials (SRM'sJto provide a basis

for comparison of measurements on materials and

to aid in the control of production processes. The

Office of Standard Reference Materials evaluates the requirements of science, industry, and government

for carefully characterized reference materials, then

directs the production and distribution of these

materials. NBS currently has over WOO SRM's available, about

100 new ones in preparation, and requests for the development of many more. The demand for new SRM s greatly exceeds the Bureau s capacity to produce and certify these materials. Consequently,

requests for new SRM's of limited use are deferred

in favor of those that serve a substantial area of

interest. In determining which requests receive top

priority, NBS relies heavily upon information supplied by industry and interested organizations.

The Bureau welcomes all requests for SRM's. Both

the Bureau and potential users would be helped if these requests included as much of the information

below as possible.

1. Short title of the proposed Standard Reference

Material. 2. Purpose for which this SRM is intended. 3. Reason why the SRM would be useful. 4. Special characteristics and/or requirements of the

material. Include necessary additional information, if more than one SRM is needed for standardization in an area. 5. An estimate of the possible present and future

[6- 1 0 yearsJ demand for such an SRM in your

operations and elsewhere. [National and international estimates are very useful].

6. Facts about whether such an SRM (or a similar one] could be produced by, or obtained from a source other than NBS. If so, justify preparation by

NBS.

7. Other pertinent information to justify the SRM,

such as: (a) an estimate of the range of application,

economic significance of the measurement affected, and scientific and/or technological significance, in- cluding estimates of the impact upon industrial productivity or growth, and [b] supporting letters from industry leaders, trade organizations, inter- ested committees, and others.

In developing an NBS-SRM, the candidate material must r set 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 must not be economically or technically feasible elsewhere,

3. The SRM must serve as an industry-wide stand- ard for commerce, provided by a unique neutral source,

4. NBS production of the SRM would provide

readily available, highly characterized material useful

to science, industry, or government.

NBS has recognized the need to enlarge the scope

of the SRM 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 widely used. Input from science, industry, and government assists NBS in continuing to provide Standard Reference Materials that will be

valuable in many areas.

81
Appendix IV

GUIDE TO ORDERING STANDARD REFERENCE MATERIALS

ORDERING

Orders should be addressed to: Office of Standard Reference Materials

Room B311, Chemistry Building

National Bureau of Standards

Gaithersburg, MD 20899

Telephone: (301) 921-2045

Orders should give number of units, catalog number, and name of the material requested. For

example, 1 each, No. llh, 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 than

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.

LATE CHARGES

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.
PROFOKMA 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 prcel 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 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 invoces 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

.

83

NBS-114A (REV. 2-8C1 U.S. DEPT. OF COMM. BIBLIOGRAPHIC DATA

SHEET (See instructions)

1. PUBLICATION OR

REPORT NO. NBS/SP-26Q/1Q5

2. Performing Organ. Report No. 3. Publ ication Date

March 1986

4. TITLE AND SUBTITLE

Standard Reference Materials: Summary of the Environmental Research, Analysis,

and Control Standards Issued by the National Bureau of Standards

5. AUTHOR(S)

R. Mavrodineanu and S. D. Rasberry

6. PERFORMING ORGANIZATION (If joint or other than NBS. see instructions)

NATIONAL BUREAU OF STANDARDS

DEPARTMENT OF COMMERCE

GAITHERSBURG, MD 20899

7. Contract/Grant No.

8. Type of Report & Period Covered

Final

9. SPONSORING ORGANIZATION NAME AND COMPLETE ADDRESS (Street. City. State, ZIP)

Same as No. 6

10. SUPPLEMENTARY NOTES

Library of Congress Catalog Card No: 86-600504

| | Document describes a computer program; SF-185, FIPS Software Summary, is attached.

11. ABSTRACT (A 200-word or less (actual summary of most si gnificant information. If document includes a si gnificant

bibliography or literature survey, mention it here)

This publication is a summary of the environmental research, analysis, and

control standards issued by NBS as Standard Reference Materials (SRM's). The

material, composition, certification, use, and remarks concerning each of the

SRM's described are presented in tabular form. Copies of the certificates of

these SRM's are contained in the appendix for more detailed information.

12. KEY WORDS (Six to twelve entries; alphabetical order; capitalize only proper names; and separate key words by semicolon s) chemical composition; environmental standards; Standard Reference Materials

13. AVAILABILITY

Fyl Unlimited

| | For Official Distribution. Do Not Release to NTIS

fxl Order From Superintendent of Documents, U.S. Government Printing Office, Washington, D.C.

20402.

12 Order From National Technical Information Service (NTIS), Springfield, VA. 22161

14. NO. OF

PRINTED PAGES

93

15. Price

*U.S. Government Printing Office: 198 6—491-070/40041 USCOMM-DC 6043-P80

Technical Publications

Periodical

Journal of Research—The Journal of Research of the National Bureau of Standards reports NBS research and development in those disciplines of the physical and engineering sciences in which the Bureau is active. These include physics, chemistry, engineering, mathematics, and computer sciences. Papers cover a broad

range of subjects, with major emphasis on measurement methodology and the basic technology underlying

standardization. Also included from time to time are survey articles on topics closely related to the Bureau's

technical and scientific programs. Issued six times a year.

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Monographs—Major contributions to the technical literature on various subjects related to the Bureau's scientific and technical activities. Handbooks—Recommended codes of engineering and industrial practice (including safety codes) developed in cooperation with interested industries, professional organizations, and regulatory bodies.

Special Publications—Include proceedings of conferences sponsored by NBS, NBS annual reports, and other

special publications appropriate to this grouping such as wall charts, pocket cards, and bibliographies.

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engineers, chemists, biologists, mathematicians, computer programmers, and others engaged in scientific and

technical work.

National Standard Reference Data Series—Provides quantitative data on the physical and chemical properties

of materials, compiled from the world's literature and critically evaluated. Developed under a worldwide pro- gram coordinated by NBS under the authority of the National Standard Data Act (Public Law 90-396).

NOTE: The Journal of Physical and Chemical Reference Data (JPCRD) is published quarterly for NBS by

the American Chemical Society (ACS) and the American Institute of Physics (AIP). Subscriptions, reprints,

and supplements are available from ACS, 1155 Sixteenth St., NW, Washington, DC 20056.

Building Science Series—Disseminates technical information developed at the Bureau on building materials,

components, systems, and whole structures. The series presents research results, test methods, and perfor- mance criteria related to the structural and environmental functions and the durability and safety

characteristics of building elements and systems.

Technical Notes—Studies or reports which are complete in themselves but restrictive in their treatment of a

subject. Analogous to monographs but not so comprehensive in scope or definitive in treatment of the subject

area. Often serve as a vehicle for final reports of work performed at NBS under the sponsorship of other government agencies.

Voluntary Product Standards—Developed under procedures published by the Department of Commerce in Part 10, Title 15, of the Code of Federal Regulations. The standards establish nationally recognized re- quirements for products, and provide all concerned interests with a basis for common understanding of the

characteristics of the products. NBS administers this program as a supplement to the activities of the private

sector standardizing organizations.

Consumer Information Series—Practical information, based on NBS research and experience, covering areas of interest to the consumer. Easily understandable language and illustrations provide useful background

knowledge for shopping in today's technological marketplace.

Order the above NBS publications from: Superintendent of Documents, Government Printing Office,

Washington, DC 20402. Order the following NBS publications—FIPS and NBSIR 's—from the National Technical Information Service, Springfield, VA 22161.

Federal Information Processing Standards Publications (FIPS PUB)—Publications in this series collectively constitute the Federal Information Processing Standards Register. The Register serves as the official source of

information in the Federal Government regarding standards issued by NBS pursuant to the Federal Property

and Administrative Services Act of 1949 as amended, Public Law 89-306 (79 Stat. 1127), and as implemented

by Executive Order 11717 (38 FR 12315, dated May 11, 1973) and Part 6 of Title 15 CFR (Code of Federal

Regulations).

NBS Interagency Reports (NBSIR)—A special series of interim or final reports on work performed by NBS

for outside sponsors (both government and non-government). In general, initial distribution is handled by the sponsor; public distribution is by the National Technical Information Service, Springfield, VA 22161, in paper copy or microfiche form.
U.S. Department of Commerce

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Gaithersburg, MD 20899

Official Business

Penalty for Private Use $300