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sklademVydáno: 2020-03-09
BS EN ISO 13165-3:2020
Water quality. Radium-226 Test method using coprecipitation and gamma-spectrometry
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| Označení normy: | BS EN ISO 13165-3:2020 |
| Počet stran: | 22 |
| Vydáno: | 2020-03-09 |
| ISBN: | 978 0 539 04377 8 |
| Status: | Standard |
DESCRIPTION
BS EN ISO 13165-3:2020
This standard BS EN ISO 13165-3:2020 Water quality. Radium-226 is classified in these ICS categories:
- 13.060.60 Examination of physical properties of water
- 17.240 Radiation measurements
This part of ISO 13165 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 soluble226Ra 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, and228Ra, to be determined.