Reference number
ISO 11665-4:2021
© ISO 2024
International Standard
ISO 11665-4:2021
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
Edition 3
2021-03
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Published (Edition 3, 2021)

ISO 11665-4:2021

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CHF 151
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Abstract

This document 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.

This document covers samples taken without interruption over periods varying from a few days to one year.

This measurement method is applicable to air samples with radon activity concentrations greater than 5 Bq/m3.

General information

  • Status
     : Published
    Publication date
     : 2021-03
    Stage
    : International Standard published [60.60]
  • Edition
     : 3
    Number of pages
     : 31
  • Technical Committee :
    ISO/TC 85/SC 2
    ICS :
    17.240  13.040.01 
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