ISO 11665-4:2012 Measurement of radioactivity in the environment - Air: radon-222 - Part 4: Integrated measurement method for determining average activity concentration using passive sampling and delayed analysis

standard by International Organization for Standardization, 07/15/2012

Full Description

ISO 11665-4:2012 describes radon-222 integrated measurement techniques with passive sampling. It gives indications for determining the average activity concentration of the radon-222 in the air from measurements based on easy-to-use and low-cost passive sampling, and the conditions of use for the sensors.

ISO 11665-4:2012 covers samples taken without interruption over periods varying from a few days to one year.