SIST EN ISO 13165-2:2023 PDF

Name: SIST EN ISO 13165-2:2023 — Water quality - Radium-226 - Part 2: Test method using emanometry (ISO 13165-2:2022)
SKU: SIST EN ISO 13165-2:2023
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Water quality - Radium-226 - Part 2: Test method using emanometry (ISO 13165-2:2022)

Название (английский):

SIST EN ISO 13165-2:2023

Water quality - Radium-226 - Part 2: Test method using emanometry (ISO 13165-2:2022)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 25
Дата публикации:: 5 января 2023 г.
ICS:: 13.060.60
Технический комитет:: KAV - Water quality

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Описание (английский):

This document specifies a test method to determine radium-226 (226Ra) activity concentration in all types of water by emanometry. The test method specified is suitable for the determination of the soluble, suspended and total 226Ra activity concentration in all types of water with soluble 226Ra activity concentrations greater than 0,02 Bq l−1. The decay chains of 238U and 232Th are given in Annex A. Figure A.1 shows the 238U and its decay chain.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

EN ISO 13165-2:2022 - Water quality - Radium-226 - Part 2: Test method using emanometry specifies an internationally harmonized laboratory method to determine radium-226 (226Ra) activity concentration in all types of water using emanometry. The procedure applies to soluble, suspended and total 226Ra where the soluble 226Ra concentration is greater than 0.02 Bq·L−1. The standard is the CEN-endorsed version of ISO 13165-2:2022 and replaces the 2020 edition.

Key topics and technical requirements

Measurement principle: emanometry (collection and detection of emanating radon progeny from 226Ra decay).

Scope of samples: suitable for surface waters, groundwaters, drinking waters, seawater, industrial and wastewaters - addressing soluble, particulate and total radium fractions.

Sampling and storage: requirements for representative sampling and appropriate storage to preserve sample integrity prior to analysis.

Sample preparation and measurement conditions: specified procedures for preparing samples, configuring emanometry systems, and counting procedures.

Instrumentation details: practical information about bubblers (Annex B) and glass scintillation cells (Annex C - silver-activated zinc sulfide coating) used in emanometric detection.

Quality assurance / quality control (QA/QC): instrument verification, calibration, method verification, analyst capability and influence parameters.

Metrology and reporting: expression of results, estimation of standard uncertainty, decision threshold and detection limit calculations, and coverage intervals (including the shortest coverage interval in line with the ISO 11929 series).

Reference material: decay chains of uranium and thorium provided in Annex A to aid interpretation of radioactivity sources.

Applications

Regulatory compliance and drinking water monitoring: verifying Ra-226 levels against national limits and WHO guidance (e.g., guidance levels for radium in drinking water).

Environmental monitoring: assessing radium from natural geology or industrial discharges (mining, phosphate processing).

Laboratory testing services: routine analyses by accredited radiochemistry and environmental testing labs using standardized emanometry methods.

Research and emergency response: baseline studies, impact assessments and post-incident monitoring where radium contamination is suspected.

Related standards and references

ISO 13165 series (other parts for radium measurements)

ISO 11929 (detection limits, decision thresholds and coverage intervals)

ISO/IEC Guide 98-3 (GUM - uncertainty evaluation)

ISO 5667-20 (sampling guidance)

World Health Organization (WHO) drinking-water radiological guidance

Keywords: EN ISO 13165-2:2022, Radium-226 testing, emanometry, water quality, radium in water, radionuclide testing, Ra-226 measurement.

SIST EN ISO 13165-2:2023 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications

Who should use this standard

Related standards and references

Технические детали

ISO 13165-2:2022

Water quality — Radium-226 — Part 2: Test method using emanometry

SIST EN ISO 11929-1:2026

Determination of the characteristic limits (decision threshold, detection limit and limits of the coverage in…

BS EN ISO 13165-3:2024

Water quality. Radium-226. Test method using coprecipitation and gamma-ray spectrometry.

SIST ISO 5667-20:2010

Water quality - Sampling - Part 20: Guidance on the use of sampling data for decision making - Compliance wit…