[EXTRACTION-COLORIMETRIC DETERMINATION OF SMALL QUANTITIES OF THORIUM IN THE AIR].
D000397:Air Pollution; D000398:Air Pollution, Radioactive; D003124:Colorimetry; D009787:Occupational Medicine; D011851:Radioactivity; D013910:Thorium; D014116:Toxicology; D014586:USSR
D013910:Thorium
AIR POLLUTION, RADIOACTIVE; COLORIMETRY; INDUSTRIAL MEDICINE; THORIUM; TOXICOLOGIC REPORT; USSR
EKSTRAKTSIONNO-KOLORIMETRICHESKOE OPREDELENIE MALYKH KOLICHESTV TORIIA V VOZDUKHE.