本文件概述了测量空气中氡-222活度浓度及其短寿命衰变产物的潜在α能浓度的指南。 测量方法分为三类: a） 现场测量方法； b） 连续测量方法； c） 综合测量方法。 本文件提供了几种常用于测量空气中氡-222及其短命衰变产物的方法。 本文件还提供了与不同部分所述测量方法相关的固有不确定度的确定指南。

This document outlines guidance for measuring radon-222 activity concentration and the potential alpha energy concentration of its short-lived decay products in the air. The measurement methods fall into three categories: a) spot measurement methods; b) continuous measurement methods; c) integrated measurement methods. This document provides several methods commonly used for measuring radon-222 and its short-lived decay products in air. This document also provides guidance on the determination of the inherent uncertainty linked to the measurement methods described in its different parts.