Reference number
ISO 11665-1:2019
© ISO 2025
International Standard
ISO 11665-1:2019
Measurement of radioactivity in the environment — Air: radon-222 — Part 1: Origins of radon and its short-lived decay products and associated measurement methods
Edition 2
2019-09
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Published (Edition 2, 2019)
This publication was last reviewed and confirmed in 2025. Therefore this version remains current.

ISO 11665-1:2019

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CHF 155
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Abstract

This document outlines guidance for measuring radon-222 activity concentration and the potential alpha energy concentration of its short-lived decay products in the air.

The measurement methods fall into three categories:

a) spot measurement methods;

b) continuous measurement methods;

c) integrated measurement methods.

This document provides several methods commonly used for measuring radon-222 and its short-lived decay products in air.

This document also provides guidance on the determination of the inherent uncertainty linked to the measurement methods described in its different parts.

General information

  • Status
     : Published
    Publication date
     : 2019-09
    Stage
    : International Standard confirmed [90.93]
  • Edition
     : 2
    Number of pages
     : 33
  • Technical Committee :
    ISO/TC 85/SC 2
    ICS :
    17.240  13.040.01 
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