Relation Between and Precision of Dust Counts (Light- and Dark-Field) From Simultaneous Impinger, Midget-Impinger, Electric-Precipitator, and Filter-Paper Samples.
Contributors: Brown, C.; Schrenk, H.
Series: Report of investigations (United States. Bureau of Mines) -- 4568
Publisher: s.n
Published: 1949
Place of publication: S.l
Language: eng
Notes: 1