警告-使用本文件的人员应熟悉正常的实验室实践。本文件并非旨在解决与其使用相关的所有安全问题（如有）。用户有责任建立适当的安全和健康实践，并确保遵守任何国家监管条件。 重要事项——根据本文件进行的测试必须由具备相应资质的人员进行。ISO 13164的本部分规定了通过脱气和检测从水相转移到空气相后，测定水样中氡-222活性浓度的试验方法。它给出了在不到1小时内进行快速测量的建议。 氡-222放射性浓度可通过使用现有仪器的本试验方法测量，对于100毫升的试验样品，其范围为0,1 Bq l–1到几十万贝克勒尔/升。 本试验方法已成功用于饮用水样品。实验室负责确保本试验方法适用于未经试验基质的水样。 本试验方法可用于现场或实验室。 附录A和B给出了必要的计数条件，以满足饮用水监测所需的灵敏度。交叉引用:ISO 5667-1IEC 17025ISO 13164-1ISO 80000-10IEC 61577-1ISO 11929IEC 61577-2ISO 5667-3ISO 11665-5ISO 11665-6ISO 11665-1IEC指南98-3:2008 GUM:1995包含以下内容:勘误表，2020年3月

WARNING — Persons using this document should be familiar with normal laboratory practice. This document does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any national regulatory conditions. IMPORTANT — It is absolutely essential that tests conducted in accordance with this document be carried out by suitably qualified staff.This part of ISO 13164 specifies a test method for the determination of radon-222 activity concentration in a sample of water following its transfer from the aqueous phase to the air phase by degassing and its detection. It gives recommendations for rapid measurements performed within less than 1 h. The radon-222 activity concentrations, which can be measured by this test method utilizing currently available instruments, range from 0,1 Bq l–1to several hundred thousand becquerels per litre for a 100 ml test sample. This test method is used successfully with drinking water samples. The laboratory is responsible for ensuring the validity of this test method for water samples of untested matrices. This test method can be applied on field sites or in the laboratory. Annexes A and B give indications on the necessary counting conditions to meet the required sensitivity for drinking water monitoring.Cross References:ISO 5667-1IEC 17025ISO 13164-1ISO 80000-10IEC 61577-1ISO 11929IEC 61577-2ISO 5667-3ISO 11665-5ISO 11665-6ISO 11665-1IEC Guide 98-3:2008GUM:1995Incorporates the following:Corrigendum, March 2020