本文件描述了氡-222的连续测量方法。它为连续测量开放或受限大气中氡活性浓度的时间变化提供了指示。 本文件旨在评估环境、公共建筑、家庭和工作场所中氡活动浓度的时间变化，作为通风和/或气象条件等影响量的函数。 所述测量方法适用于氡活度浓度大于5 Bq/m3的空气样品。

This document describes continuous measurement methods for radon-222. It gives indications for continuous measuring of the temporal variations of radon activity concentration in open or confined atmospheres. This document is intended for assessing temporal changes in radon activity concentration in the environment, in public buildings, in homes and in work places, as a function of influence quantities such as ventilation and/or meteorological conditions. The measurement method described is applicable to air samples with radon activity concentration greater than 5 Bq/m³.