Označení normy: | ČSN EN ISO 13164-4 |
Třídící znak: | 757618 |
Počet stran: | 32 |
Vydáno: | 01.01.2024 |
Harmonizace: | Norma není harmonizována |
Katalogové číslo: | 518195 |
Popis
ČSN EN ISO 13164-4
This document describes a test method for the determination of radon-222 (222Rn) activity concentration in non-saline waters by extraction and liquid scintillation counting. The 222Rn activity concentrations, which can be measured by this test method utilizing currently available instruments, are above 0,5 Bq˙l-1 which is the typical detection limit for a 10 ml test sample and a measuring time of 1 h. It is the responsibility of the laboratory to ensure the validity of this test method for water samples of untested matrices. Annex A gives indication on the necessary counting conditions to meet the required detection limits for drinking water monitoring.