90.92 Standard to be revised Jun 17, 2024
ISO
ISO/TC 147/SC 3 Radioactivity measurements
International Standard
13.060.60 Examination of physical properties of water | 13.280 Radiation protection
This document specifies a test method for the determination of gross beta activity concentration in non-saline waters. The method covers non-volatile radionuclides with maximum beta energies of approximately 0,3 MeV or higher. Measurement of low energy beta emitters (e.g. 3H, 228Ra, 210Pb, 14C, 35S and 241Pu) and some gaseous or volatile radionuclides (e.g. radon and radioiodine) might not be included in the gross beta quantification using the test method described in this document.
This test method is applicable to the analysis of raw and drinking waters. The range of application depends on the amount of total soluble salts in the water and on the performance characteristics (background count rate and counting efficiency) of the counter used.
It is the laboratory's responsibility to ensure the suitability of this method for the water samples tested.
WITHDRAWN
ISO 9697:2015
PUBLISHED
ISO 9697:2018
90.92
Standard to be revised
Jun 17, 2024
IN_DEVELOPMENT
ISO/CD 9697