SYMPOSIA PAPER Published: 01 January 1976
STP32367S

Role of The National Bureau of Standards in Calibration Problems Associated with Air Pollution Measurements

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The National Bureau of Standards (NBS) produces a limited number of Standard Reference Materials (SRM's) for air pollution and related analyses. The effort involved in the preparation and certification of these standards precludes production in large quantities or of great variety. The requirements for accuracy and stability of samples necessitate a considerable research effort prior to production of the actual SRM's. The decision as to what gas mixtures will be prepared as SRM's is based primarily on a demonstrated need modified by anticipated demand and by other obligations of the SRM program. The demand for these SRM's is increasing, and maintaining stocks of current SRM's must compete with the necessary research prior to issuance of new SRM's.

Comparisons are presented of independent analyses of a number of SRM's currently in use for measurement of automotive emissions.

Author Information

Hughes, EE
National Bureau of Standards, Washington, D. C.
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Details
Developed by Committee: D22
Pages: 223–231
DOI: 10.1520/STP32367S
ISBN-EB: 978-0-8031-4674-7
ISBN-13: 978-0-8031-0297-2