ISO 13164-4:2023
International Standard
Current Edition
·
Approved on
20 July 2023
Water quality — Radon-222 — Part 4: Test method using two-phase liquid scintillation counting
ISO 13164-4:2023 Files
English
16 Pages
Current Edition
OMR
49.29
ISO 13164-4:2023 Scope
This document describes a test method for the determination of radon-222 (222Rn) activity concentration in non-saline waters by extraction and liquid scintillation counting.
The 222Rn activity concentrations, which can be measured by this test method utilizing currently available instruments, are above 0,5 Bq·l−1 which is the typical detection limit for a 10 ml test sample and a measuring time of 1 h.
It is the responsibility of the laboratory to ensure the validity of this test method for water samples of untested matrices.
Annex A gives indication on the necessary counting conditions to meet the required detection limits for drinking water monitoring.
Best Sellers
GSO 150-2:2013
Gulf Standard
Expiration dates for food products - Part 2 :
Voluntary expiration dates
OS GSO 150-2:2013
GSO 150-2:2013
Omani Standard
Expiration dates for food products - Part 2 :
Voluntary expiration dates
OS GSO 9:2022
GSO 9:2022
Omani Standard
Labeling of prepackaged food stuffs
GSO 9:2022
Gulf Technical Regulation
Labeling of prepackaged food stuffs
Recently Published
ISO 15027-3:2026
International Standard
Immersion suits — Part 3: Test methods
ISO 15027-1:2026
International Standard
Immersion suits — Part 1: Safety and performance requirements for constant wear suits
ISO/IEC TS 23220-4:2026
International Standard
Cards and security devices for personal identification — Building blocks for identity management via mobile devices — Part 4: Protocols and services for operational phase
ISO/IEC TS 23220-2:2026
International Standard
Cards and security devices for personal identification — Building blocks for identity management via mobile devices — Part 2: Data objects and encoding rules for generic eID systems