Preliminary evaluation of a modified NBS PM.
Contributors: Howes, J. E.; Environmental Monitoring Systems Laboratory (Research Triangle Park, N.C.)
Publisher: U.S. Environmental Protection Agency, Environmental Monitoring Systems Laboratory
Published: 1986
Place of publication: Research Triangle Park, NC
Language: eng
Subjects: Air -- Measurement.
Notes: Caption title.

At head of title: Project summary.

Distributed to depository libraries in microfiche.

"Jan. 1986."

"EPA/600/S4-85/057."