ISO 13163:2021 pdf download – Water quality — Lead-210 — Test method using liquid scintillation counting. 1 Scope This document specifies a method for the measurement of scintillation counting (LSC). 210 in all types of waters by liquid The method is applicable to test samples of supply/drinking water, rainwater, surface and ground water, as well as cooling water, industrial water, domestic, and industrial wastewater after proper sampling and handling, and test sample preparation. Filtration of the test sample is necessary. Lead-210 activity concentration in the environment can vary and usually ranges from 2 mBq l to 300 mBq l ....