Standard

NS-EN ISO 13165-3:2020

Withdrawn

Note: This standard has a new edition: NS-EN ISO 13165-3:2024

Corrigendums and amendments are bought separately.

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Abstract

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 lāˆ’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.

Document information

  • Standard from SN
  • Published:
  • Withdrawn:
  • Edition: 2020-02
  • Version: 1
  • Document type: NAT
  • ICS 13.060.60
  • ICS 17.240
  • National Committee CEN/TC 230

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