International Standard
ISO 11665-3:2020
Measurement of radioactivity in the environment — Air: radon-222 — Part 3: Spot measurement method of the potential alpha energy concentration of its short-lived decay products
Reference number
ISO 11665-3:2020
Edición 2
2020-01
International Standard
Vista previa
ISO 11665-3:2020
76008
No disponible en español
Publicado (Edición 2, 2020)

ISO 11665-3:2020

ISO 11665-3:2020
76008
Idioma
Formato
CHF 129
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Resumen

This document describes spot measurement methods for determining the activity concentration of short-lived radon-222 decay products in the air and for calculating the potential alpha energy concentration.

This document gives indications for performing a spot measurement of the potential alpha energy concentration, after sampling at a given place for several minutes, and the conditions of use for the measuring devices.

The measurement method described is applicable for a rapid assessment of the potential alpha energy concentration. The result obtained cannot be extrapolated to an annual estimate potential alpha energy concentration of short-lived radon-222 decay products. Thus, this type of measurement is not applicable for the assessment of annual exposure or for determining whether or not to mitigate citizen exposures to radon or radon decay products.

This measurement method is applicable to air samples with potential alpha energy concentration greater than 5 nJ/m3.

NOTE This document does not address the potential contribution of radon-220 decay products.

Informaciones generales

  •  : Publicado
     : 2020-01
    : Norma Internacional publicada [60.60]
  •  : 2
     : 19
  • ISO/TC 85/SC 2
    17.240  13.040.01 
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