NBS/EPA certified reference material performance audit program
Subtitle: status report 1
By: R.S. Wright, W.C. Eaton, and C.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: 1985
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.

"June 1985."

"EPA/600/S4-85/033."