ISO 11665-4:2021
International Standard
Current Edition
·
Approved on
26 March 2021
Measurement of radioactivity in the environment — Air: radon-222 — Part 4: Integrated measurement method for determining average activity concentration using passive sampling and delayed analysis
ISO 11665-4:2021 Files
English
31 Pages
Current Edition
USD
203.46
ISO 11665-4:2021 Scope
This document describes radon-222 integrated measurement techniques with passive sampling. It gives indications for determining the average activity concentration of the radon-222 in the air from measurements based on easy-to-use and low-cost passive sampling, and the conditions of use for the sensors.
This document covers samples taken without interruption over periods varying from a few days to one year.
This measurement method is applicable to air samples with radon activity concentrations greater than 5 Bq/m3.
Best Sellers
YSMO GSO 150-2:2020
GSO 150-2:2013
Yemeni Technical Regulation
Expiration dates for food products - Part 2 :
Voluntary expiration dates
GSO 150-2:2013
Gulf Standard
Expiration dates for food products - Part 2 :
Voluntary expiration dates
GSO 9:2022
Gulf Technical Regulation
Labeling of prepackaged food stuffs
YSMO GSO 2055-1:2020
GSO 2055-1:2015
Yemeni Standard
HALAL FOOD - Part 1 : General Requirements
Recently Published
ISO 10322:2026
International Standard
Ophthalmic optics — Semi-finished blanks
ISO/TS 17536-2:2026
International Standard
Road vehicles — Aerosol separator performance test for internal combustion engines — Part 2: Laboratory test method
ISO 29821:2026
International Standard
Condition monitoring and diagnostics of machine systems — Ultrasound — General requirements, guidelines, procedures and validation
ISO 14001:2026
International Standard
Environmental management systems — Requirements with guidance for use