EN ISO 22908:2020
水质 镭226和镭228 液体闪烁计数法
Water quality - Radium 226 and Radium 228 - Test method using liquid scintillation counting (ISO 22908:2020)
2020-08
EN ISO 22908:2020 中，可能用到以下仪器
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- 标准号
- EN ISO 22908:2020
- 发布
- 2020年
- 发布单位
- 欧洲标准化委员会
- 当前最新
- EN ISO 22908:2020
- 适用范围
- This document specifies the determination of radium-226 (226Ra) and radium-228 (228Ra) activity concentrations in drinking water samples by chemical separation of radium and its measurement using liquid scintillation counting. Massic activity concentrations of 226Ra and 228Ra which can be measured by this test method utilizing currently available liquid scintillation counters go down to 0,01 Bq/kg for 226Ra and 0,06 Bq/kg for 228Ra for a 0,5 kg sample mass and a 1 h counting time in a low background liquid scintillation counter[8]. The test method can be used for the fast detection of contamination of drinking water by radium in emergency situations.