ISO 11665-9:2019 环境中辐射的测量 空气：氡-222 第9部分：建筑材料析出率的测试方法

标准编号：ISO 11665-9:2019

中文名称：环境中辐射的测量 空气：氡-222 第9部分：建筑材料析出率的测试方法

英文名称：Measurement of radioactivity in the environment — Air: Radon-222 — Part 9: Test methods for exhalation rate of building materials

发布日期：2019-05

标准范围

This document specifies a method for the determination of the free radon exhalation rate of a batch of mineral based building materials. This document only refers to ²²² Rn exhalation determination using two test methods: liquid Scintillation Counting (LSC) and gamma ray spectrometry (see Annex A and Annex B).
The exhalation of thoron ( ²²⁰Rn) does not affect the test result when applying the determination

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