Small size-range extension of an optical particle counter
By: James T. Brown.
Contributors: Environmental Sciences Research Laboratory.
Publisher: U.S. Environmental Protection Agency, Environmental Sciences Research Laboratory; Center for Environmental Research Information [distributor]
Published: 1981
Place of publication: Research Triangle Park, NC; Cincinnati, OH
Language: eng
Subjects: Optical scanners.
Notes: Caption title.

At head of title: Project summary.

"Sept. 1981".

"EPA-600/S2-81-144.