ISO 23468:2021 PDF

Reactor technology — Power reactor analyses and measurements — Determination of heavy water isotopic purity by Fourier transform infrared spectroscopy

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Title (English):

ISO 23468:2021

Reactor technology — Power reactor analyses and measurements — Determination of heavy water isotopic purity by Fourier transform infrared spectroscopy

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 19
Publication date:: August 11, 2021
Edition:: ISO IS 23468 edition 1 version 1
ICS:: 27.120.10

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Description (English):

This document specifies an analytical method for determining heavy water isotopic purity by Fourier transform infrared spectroscopy (FTIR). It is applicable to the determination of the whole range of heavy water concentration. The method is devoted to process controls at the different steps of the process systems in heavy water reactor power plant or any other related areas. The method can be applied for heavy water isotopic purity measurements in a heavy water reactor power plant or research reactor, heavy water production factory and heavy water related areas.

Technical details

Technical committee: ISO/TC 85/SC 6 - Reactor technology
SKU: ISO 23468:2021

Abstract

Overview

ISO 23468:2021 specifies an analytical method for determining heavy water isotopic purity using Fourier transform infrared spectroscopy (FTIR). The standard covers the full range of heavy water (D2O) concentration and is intended for process control and quality assurance in heavy water reactor power plants, research reactors, heavy water production facilities and related areas. The method relies on characteristic infrared absorption of O–H and O–D bonds and provides procedures for preparing reference standards, sampling, instrument setup, calibration and result reporting.

Key topics and technical requirements

Principle: Measurement is based on FTIR absorption differences for HDO, H2O and D2O; key absorption regions include ~3400 cm−1 (O–H) and ~2500 cm−1 (O–D).
Applicability: Valid across the whole D2O concentration range; subdivides mid-ranges into different spectral regions as needed.
Reagents & gases: Demineralized light water (ISO 3696 grade 1), certified high-isotopic-purity D2O reference standards, acetone or absolute ethanol, helium (99.999 %) and dry nitrogen/compressed air (dew point

Related standards

Mentioned in the description and other ISO standards

Overview

Key topics and technical requirements

Principle: Measurement is based on FTIR absorption differences for HDO, H2O and D2O; key absorption regions include ~3400 cm−1 (O–H) and ~2500 cm−1 (O–D).
Applicability: Valid across the whole D2O concentration range; subdivides mid-ranges into different spectral regions as needed.
Reagents & gases: Demineralized light water (ISO 3696 grade 1), certified high-isotopic-purity D2O reference standards, acetone or absolute ethanol, helium (99.999 %) and dry nitrogen/compressed air (dew point

ISO 23468:2021 PDF

Technical details

Abstract

Overview

Key topics and technical requirements

Related standards

Abstract

Overview

Key topics and technical requirements

Related standards

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