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About This Item

 

Full Description

The method is based on acidifying the sample to stabilize it, evaporation almost to dryness, conversion to the sulfate form and ignition at 350 °C, transfer of a portion of the residue to a planchette and counting beta-activity in a Geiger counting assembly. Covers non-volatile beta-active radionuclides with maximum beta energies higher than 0,3 MeV. Applies to the analysis of raw and potable waters.

 

Document History

  1. ISO 9697:2018


    Water quality - Gross beta activity - Test method using thick source

    • Most Recent
  2. ISO 9697:2015


    Water quality - Gross beta activity in non-saline water - Test method using thick source

    • Historical Version
  3. ISO 9697:2008


    Water quality - Measurement of gross beta activity in non-saline water - Thick source method

    • Historical Version
  4. ISO 9697:1992

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    Water quality - Measurement of gross beta activity in non-saline water

    • Historical Version