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ISO 13165-3:2016

Water quality — Radium-226 — Part 3: Test method using coprecipitation and gamma-spectrometry

Standard Details

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.

General Information

Status : Published
Standard Type: Main
Document No: ISO 13165-3:2016
Document Year: 2016
Pages: 14
Edition: 1
  • ICS:
  • 13.060.60 Examination of physical properties of water
  • 17.240 Radiation measurements

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ISO 13165-3:2016
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