EN ISO 13164-4:2023由欧洲标准化委员会 IX-CEN 发布于 2023-07-26,并于 2023-10-31 实施,于 2024-01-31 废止。
EN ISO 13164-4:2023在国际标准分类中归属于: 13.060.60 水的物理特性检验。
EN ISO 13164-4:2023 水质 Radon-222 第4部分:使用两相液体闪烁计数的测试方法 (ISO 13164-4:2023)的最新版本是哪一版?
最新版本是 EN ISO 13164-4:2023 。
This document describes a test method for the determination of radon-222 (222Rn) activity concentration in non-saline waters by extraction and liquid scintillation counting. The 222Rn activity concentrations, which can be measured by this test method utilizing currently available instruments, are above 0,5 Bq·l−1 which is the typical detection limit for a 10 ml test sample and a measuring time of 1 h. It is the responsibility of the laboratory to ensure the validity of this test method for water samples of untested matrices. Annex A gives indication on the necessary counting conditions to meet the required detection limits for drinking water monitoring.
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