Hygienic standardization of the levels of selenium hexafluoride in the air of a working area

: The paper presents the results of investigations on the hygienic standardization of the levels of selenium hexafluoride (SeF6) in the air of a working area. It also analyzes the data on the effects of SeF6 inhalation on laboratory animals, by applying morphological, physiological, hematological, and biochemical studies. The studies have yielded the basic parameters of inhalation toxicity and established the threshold of the irritant action of the substance, developed and approved its maximally acceptable concentration (0.2 mg/m3, gas + vapors) and a procedure for photometric determination of SeF6 in the air of a working area.