Microprojection method for counting impinger dust samples

Additional Authors:	Brown, Carlton E., Schrenk, Helmuth H., Yant, William P., Baum, Lester A. H.
Year:	1938
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:3373
Series:	Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number:	3373
Subjects:	Mineral dusts
	Dust--Measurement
Link:	https://hdl.handle.net/2027/mdp.39015078518126