ISO 23468:2021 PDF
Reactor technology — Power reactor analyses and measurements — Determination of heavy water isotopic purity by Fourier transform infrared spectroscopy
Reactor technology — Power reactor analyses and measurements — Determination of heavy water isotopic purity by Fourier transform infrared spectroscopy
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 19
- Дата публикации:
- 11 августа 2021 г.
- Издание:
- ISO IS 23468 edition 1 version 1
- ICS:
- 27.120.10
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.
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
Технические детали
- Технический комитет
- ISO/TC 85/SC 6 - Reactor technology
- SKU
- ISO 23468:2021
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