NBS/EPA certified reference material performance audit program
Subtitle: status report 2
By: Robert S. Wright, W. Cary Eaton, and Clifford E. Decker.
Contributors: Eaton, W. C.; Decker, C. E.; Environmental Monitoring Systems Laboratory (Research Triangle Park, N.C.)
Publisher: U.S. Environmental Protection Agency, Environmental Monitoring Systems Laboratory
Published: 1987
Place of publication: Research Triangle Park, NC
Language: eng
Subjects: Air quality -- United States -- Measurement.
Notes: Caption title.

At head of title: Project summary.

Distributed to depository libraries in microfiche.

"Apr. 1987."

"EPA/600/S4-86/045."