本文件描述了氡-222点测量方法。它给出了在给定地点以几分钟的比例对开放和受限大气中的氡活动浓度进行现场测量的指示。 该测量方法旨在快速评估空气中的氡活度浓度。结果不能外推到氡活动浓度的年度估计值。因此，此类测量不适用于年度暴露评估或确定是否减轻公民对氡或氡衰变产物的暴露。交叉引用:ISO/IEC指南98-3ISO 11929（所有部分）ISO/IEC 17025ISO 11665-1IEC 61577-1ISO 11665- 7ISO 13164（所有部分）IEC 61577-2购买时可用的所有当前修订版均包含在本文件的购买中。

This document describes radon-222 spot measurement methods. It gives indications for carrying out spot measurements, at the scale of a few minutes at a given place, of the radon activity concentration in open and confined atmospheres. This measurement method is intended for rapid assessment of the radon activity concentration in the air. The result cannot be extrapolated to an annual estimate of the radon activity concentration. This type of measurement is therefore not applicable for assessment of the annual exposure or for determining whether or not to mitigate citizen exposures to radon or radon decay products.Cross References:ISO/IEC Guide 98-3ISO 11929 (all parts)ISO/IEC 17025ISO 11665-1IEC 61577-1ISO 11665-7ISO 13164 (all parts)IEC 61577-2All current amendments available at time of purchase are included with the purchase of this document.