标准编号：ISO 13164-4:2015
中文名称：水的质量 氡-222 第4部分：使用两相液体闪烁计数法
英文名称：Water quality — Radon-222 — Part 4: Test method using two-phase liquid scintillation counting
发布日期：2015-06
标准范围
This part of ISO 13164 describes a test method for the determination of radon-222 (222Rn) activityconcentration in non-saline waters by extraction and liquid scintillation counting.The radon-222 activity concentrations, which can be measured by this test method utilizing currentlyavailable instruments, are at least above 0,5 Bq l?1 for a 10 ml test sample and a measuring time of 1 h.This test method can be used successfully with drinking water samples and it is the responsibility of thelaboratory 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 fordrinking water monitoring.
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