[Calculation of heat-insulating parameters of clothes for comfortable work conditions].

The article covers basics of hypothesis that selecting clothes for workers should consider heat-insulation in accordance with energy expenditure for work in various ambient temperatures with preserved heat balance.

[Measuring regulated values of workers' infrared irradiation].

Using radiometers with limited visual angle to measure intensity of workers' all-round infrared irradiation, the author demonstrated that the measured value should be reestablished through separate measurements. The reverse task is generally inconsistent. In sanitary and hygienic examinations, this objective could be targeted through spherical thermometer. Heat balance ratio enables to determine biologically effective flux of infrared irradiation.