Water quality - Radium-226 - Part 3: Test method using coprecipitation and gamma-spectrometry
ISO 13165-3:2016 specifies the determination of radium-226 (226Ra) activity concentration in all types of water by coprecipitation followed by gamma-spectrometry (see ISO 18589‑3).
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.
| SDO | ISO: International Organization for Standardization |
| Document Number | ISO 13165 |
| Publication Date | Not Available |
| Language | en - English |
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| Supercedes | |
| Committee | ISO/TC 147/SC 3 |
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