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ISO 22908

Water quality — Radium 226 and Radium 228 — Test method using liquid scintillation counting

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Organization: ISO
Publication Date: 1 January 2020
Status: active
Page Count: 36
ICS Code (Examination of physical properties of water): 13.060.60
ICS Code (Radiation protection): 13.280
ICS Code (Radiation measurements): 17.240
scope:

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.

[8] IAEA AQ-39, Procedure for the Rapid Determination of 226Ra and 228Ra in Drinking Water by Liquid Scintillation Counting. International Atomic Energy Agency, Vienna, 2014

Document History

ISO 22908
January 1, 2020
Water quality — Radium 226 and Radium 228 — Test method using liquid scintillation counting
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...

References

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