Search U.S. government technical reports digitized or harvested by TRAIL.
Control of dust from blasting by a spray of water mist
A technique for use of the impinger method
Effect of angle of drilling on dust dissemination
Microprojection method for counting impinger dust samples
Relation of dust dissemination to water flow through rock drills
Standard methods for measuring extent of atmospheric pollution
Filter-paper method for obtaining dust-concentration results comparable to impinger results
Midget microprojector for dust determinations
Size of smallest dust particles revealed by various microscopic systems
Size of smallest particles determined in impinger dust-counting methods