Problems  associated with the use of membrane filters for dust sampling when compositonal analysis is required.
D000397:Air Pollution / Q000032:analysis*; D003032:Coal Mining; D004391:Dust / Q000032:analysis*; D005374:Filtration / Q000295:instrumentation*; D013055:Spectrophotometry, Infrared; D006113:United Kingdom
D004391:Dust