[Principal approaches to standardization of biological contaminants].
Iu A
IuA
Rakhmanin
G A
GA
Bagdasar'ian
V I
VI
Nemyria
N P
NP
Sergeiuk
D000391:Air Microbiology / Q000592:standards*; D000818:Animals; D004787:Environmental Pollution / Q000517:prevention & control; D006801:Humans; D007928:Lethal Dose 50; D008452:Maximum Allowable Concentration; D008828:Microbiological Techniques; D013997:Time Factors