ISO 11665-2:2019 环境中辐射的测量 空气：氡-222 第2部分：测定其短寿命衰变产物平均α潜能浓度的综合测量方法

标准编号：ISO 11665-2:2019

中文名称：环境中辐射的测量 空气：氡-222 第2部分：测定其短寿命衰变产物平均α潜能浓度的综合测量方法

英文名称：Measurement of radioactivity in the environment — Air: radon-222 — Part 2: Integrated measurement method for determining average potential alpha energy concentration of its short-lived decay products

发布日期：2019-09

标准范围

This document describes integrated measurement methods for short-lived radon-222 decay products . 
It gives indications for measuring the average potential alpha energy concentration of short-lived 
radon-222 decay products in the air and the conditions of use for the measuring devices.
This document covers samples taken over periods varying from a few weeks to one year. This document 
is not applicable to systems with a maximum sampling duration of less than one week.
The measurement method described is applicable to air samples with potential alpha energy concentration 
of short-lived radon-222 decay products greater than 10 nJ/m³  and lower than 1 000 nJ/m³ .
NOTE For informative purposes only, this document also addresses the case of radon-220 decay products, 
given the similarity in behaviour of the radon isotopes 222 and 220.

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