Water quality - Measurement of gross alpha and beta activity concentration in non-saline water - Liquid scintillation counting method (ISO 11704:2010)
SS-EN ISO 11704:2018
This International Standard specifies a method for the determination of gross alpha and gross beta activity in waters for radionuclides which are not volatile at 80 °C. Radon isotopes and their decay products of short half life are not included in the determination.
The method is applicable to raw and potable waters with a dry residue less than 5 g/l and when no correction for colour quenching is necessary.