Standard

NS-EN ISO 11665-2:2019

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Abstract

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.

Document information

  • Standard from SN
  • Published:
  • Edition: 2019-10
  • Version: 1
  • Document type: NAT
  • ICS 13.040.01
  • ICS 17.240
  • National Committee CEN/TC 430

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