ISO 23655-1:2022

International Standard   Current Edition
Approved on  02 September 2022

Water quality — Nickel-59 and nickel-63 — Part 1: Test method using liquid scintillation counting

Radiation measurements
Including dosimetry

ISO 23655-1:2022 Files

null Pages
Current Edition

ISO 23655-1:2022 Scope

This document specifies the determination of nickel-59 and nickel-63 (59Ni and 63Ni) activity concentration in samples of all types of water using liquid scintillation counting (LSC). Using currently available liquid scintillation counters, this test method can measure 59Ni activity concentrations of 50 mBq·l−1 and 63Ni activity concentrations of 20 mBq·l−1 with a counting time of 200 min and a sample volume of 1,5 l.

NOTE      These performance indicators are wholly dependent on the measurement regimes in individual laboratories; in particular, the detection limits for 59Ni are entirely dependent on the levels of 63Ni that can be present.

The range of application depends on the amount of dissolved material in the water and on the performance characteristics of the measurement equipment (background count rate and detection efficiency).

It is the laboratory’s responsibility to ensure the suitability of this test method for the water samples tested.

Best Sellers

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
BH GSO 150-1:2015
GSO 150-1:2013 
Bahraini Technical Regulation
Expiration dates for food products -Part 1 : Mandatory expiration dates
GSO 150-1:2013
 
Gulf Technical Regulation
Expiration dates for food products -Part 1 : Mandatory expiration dates

Recently Published

ISO 15500-13:2023
 
International Standard
Road vehicles — Compressed natural gas (CNG) fuel system components — Part 13: Pressure relief device (PRD)
ISO/TS 11007-2:2023
 
International Standard
Petroleum products and lubricants — Determination of rust-prevention characteristics of lubricating greases — Part 2: Method with water wash-out
ISO 13583-2:2023
 
International Standard
Centrifugally cast steel and alloy products — Part 2: Heat-resistant materials
ISO 7784-1:2023
 
International Standard
Paints and varnishes — Determination of resistance to abrasion — Part 1: Method with abrasive-paper covered wheels and rotating test specimen