ISO 11665-2:2019
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ISO 11665-2:2019
76007

Abstract

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This document describes integrated measurement methods for short-lived radon‑222 decay products[4]. It gives indications for measuring the average potential alpha energy concentration of short‑lived radon-222 decay products in the air and the conditions of use for the measuring devices.

This document covers samples taken over periods varying from a few weeks to one year. This document is not applicable to systems with a maximum sampling duration of less than one week.

The measurement method described is applicable to air samples with potential alpha energy concentration of short-lived radon-222 decay products greater than 10 nJ/m3 and lower than 1 000 nJ/m3.

NOTE For informative purposes only, this document also addresses the case of radon-220 decay products, given the similarity in behaviour of the radon isotopes 222 and 220.


General information 

  •  :  Published
     : 2019-09
  •  : 2
     : 13
  •  : ISO/TC 85/SC 2 Radiological protection
  •  :
    17.240 Radiation measurements
    13.040.01 Air quality in general

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