[Hygienic basis adopted in SN 369-74 of averaging the computed concentrations of harmful substances].
D000393:Air Pollutants / Q000032:analysis*; D000395:Air Pollutants, Occupational / Q000032:analysis*; D007220:Industrial Waste / Q000032:analysis; D008452:Maximum Allowable Concentration; D013997:Time Factors; D014586:USSR
D000393:Air Pollutants; D000395:Air Pollutants, Occupational; D007220:Industrial Waste
O gigienicheskoĭ obosnovannosti priniatogo v SN 369-74 osredneniia raschetnykh kontsentratsiĭ vrednykh veshchestv.