Dust sampling with the Bureau of Mines midget impinger :using a new hand-operated pump

Author: Littlefield, J. B.
Additional Authors: Schrenk, H. H.
Year: 1938
Document Type: BMRA
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I 28.23:3387
Series: Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number: 3387
Subject: Mineral dusts--Sampling
Link: https://hdl.handle.net/2027/mdp.39015078517920

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