ISO/FDIS 13165-3
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Water quality — Radium-226 — Part 3: Test method using coprecipitation and gamma-ray spectrometry
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12-12-2024
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04-06-2024
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This document specifies a method to determine radium-226 (226Ra) activity concentration in all types of water by coprecipitation followed by gamma-ray spectrometry (see ISO 20042[7]).
The method covers the measurement of soluble 226Ra activity concentrations greater than0,002Bq·l−1 using a sample volume of up to 100l of any water type.
For water samples with a volume of less than a volume of 1l, direct gamma-ray spectrometry can be performed following ISO 10703 but with a higher detection limit. The typical detection limit for samples of 1l to 5l is in the range of 0,002 to 0,00040Bq·l−1[8].
NOTE This test method can be adapted to determine other naturally occurring isotopes of radium, such as 223Ra, 224Ra and 228Ra, if the respective ingrowth periods are taken into account.
| Committee |
ISO/TC 147/SC 3
|
| DocumentType |
Draft
|
| Pages |
15
|
| PublisherName |
International Organization for Standardization
|
| RevisionOf | |
| Status |
Superseded
|
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