Sets forth the requirement for a portable instrument for the rapid measurement of the volume potential alpha energy due to the decay product of radon 222Rn in the air of underground mines.
17.240 Radiation. Including dosimetry / Измерения параметров излучений
13.280 Radiation. Including protection against radio-frequency radiation / Защита от радиационного излучения. Включая защиту от радиочастотного излучения
