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Status : Withdrawn
Standard Type : Main
Document Year : 2016
Pages : 14
Edition : 1
Section Volume : Radiological methods (ISO/TC 147/SC 3.)
The method described is suitable for determination of soluble 226Ra activity concentrations greater than 0,02 Bq l−1 using a sample volume of 1 l to 100 l of any water type.
For water samples smaller than a volume of 1 l, direct gamma-spectrometry can be performed following ISO 10703 with a higher detection limit.
NOTE This test method also allows other isotopes of radium, 223Ra, 224Ra, and 228Ra, to be determined.