A new device for measuring respirable dust in underground mines--the C.P.M.
D003032:Coal Mining; D004391:Dust / Q000032:analysis*; D005374:Filtration; D008722:Methods; D010316:Particle Size; D011009:Pneumoconiosis / Q000517:prevention & control; D011140:Polyurethanes
D004391:Dust; D011140:Polyurethanes