（ISO 13164-4-2015），英文名为Water quality -- Radon-222 -- Part 4: Test method using two-phase liquid scintillation counting。
它（ISO 13164-4-2015）是在2015-06-01发布，在2015-06-01开始实施。
ISO 13164-4:2015 describes a test method for the determination of radon-222 (222Rn) activity concentration in non-saline waters by extraction and liquid scintillation counting. The radon-222 activity concentrations, which can be measured by this test method utilizing currently available instruments, are at least above 0,5 Bq l?1 for a 10 ml test sample and a measuring time of 1 h. This test method can be used successfully with drinking water samples and 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.
本标准文件共有20页。
ISO 13164-4-2015 Water quality -- Radon-222 -- Part 4_ Test method using two-phase liquid scintillation counting.pdf
(444.44 KB)
|
|
