[Concentrating tubes for taking gas samples].
D000393:Air Pollutants / Q000032:analysis*; D000395:Air Pollutants, Occupational / Q000032:analysis*; D003032:Coal Mining; D005740:Gases / Q000032:analysis*; D013048:Specimen Handling / Q000295:instrumentation*; D014455:Ukraine
D000393:Air Pollutants; D000395:Air Pollutants, Occupational; D005740:Gases
Trubki-kontsentratory dlia otbora prob gazov.