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ONORM EN ISO 11665-6:2020
Measurement of radioactivity in the environment - Air: radon-222 - Part 6: Spot measurement methods of the activity concentration (ISO 11665-6:2020)
This document describes point measurement procedures for 222Rs. It provides guidance on how to measure the radon activity concentration within a few minutes at a predetermined location in open and enclosed atmospheres. This measurement method is used for the rapid determination of radon activity concentration in the air. The result cannot be used to predict the annual value of the radon activity concentration. This type of measurement is therefore not applicable for the assessment of year-round exposure or for determining whether the exposure of radon or radon derived products to the population needs to be reduced. The described measurement method is applicable to air samples with radon activity concentrations of more than 50 Bq.m.(-3).
Austrian Standards Institute [on]