ISO 11665-3:2020

International Standard   Current Edition

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

Scope

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.

Prepare
13 January 2020
Radiation measurements
Including dosimetry

Files

English 19 Pages
Current Edition
46.25 BHD
 

Related Standards

revises
ISO 11665-3:2012
 
Historical
International Standard
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

Best Sellers

GSO 9:2013
 
Gulf Technical Regulation
Labeling of prepackaged food stuffs
BH GSO 9:2015
GSO 9:2013 
Bahraini Technical Regulation
Labeling of prepackaged food stuffs
GSO 150-2:2013
 
Gulf Standard
Expiration dates for food products - Part 2 : Voluntary expiration dates
BH GSO 150-2:2015
GSO 150-2:2013 
Bahraini Standard
Expiration dates for food products - Part 2 : Voluntary expiration dates

Recently Published

CLC/TS 50600-5-1:2021
 
International Standard
Information technology - Data centre facilities and infrastructures - Part 5-1: Maturity Model for Energy Management and Environmental Sustainability
EN 50491-12-2:2022
 
International Standard
General requirements for Home and Building Electronic Systems (HBES) and Building Automation and Control Systems (BACS) - Part 12-2: Smart grid - Application specification - Interface and framework for customer - Interface between the Home / Building CEM and Resource manager(s) - Data model and messaging
EN IEC 60947-5-2:2020/A11:2022
 
International Standard
Low-voltage switchgear and controlgear - Part 5-2: Control circuit devices and switching elements - Proximity switches
EN IEC 60598-1:2021/A11:2022
 
International Standard
Luminaires - Part 1: General requirements and tests