EN ISO 9696:2017

Name: EN ISO 9696:2017 — Water quality - Gross alpha activity - Test method using thick source (ISO 9696:2017)
SKU: EN ISO 9696:2017
Price: 39600 RUB
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Water quality - Gross alpha activity - Test method using thick source (ISO 9696:2017)

Название (английский):

EN ISO 9696:2017

Water quality - Gross alpha activity - Test method using thick source (ISO 9696:2017)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 22
Дата публикации:: 15 ноября 2017 г.
Издание:: CEN EN 9696 edition 1 version 1
ICS:: 13.060.60

Тип поставки:

Full version39 600 ₽Read online 24h1 200 ₽Read online 72h1 800 ₽

Язык документа:

ruen

Срок поставки:4 раб. дн. (перевод)

Цена:39 600 ₽

Описание (английский):

ISO 9696:2017 specifies a method for the determination of gross alpha activity in non-saline waters for alpha-emitting radionuclides which are not volatile up to 350 °C. The method is applicable to raw and potable waters. The range of application depends on the amount of total soluble salts in the water and on the performance characteristics (background count rate and counting efficiency) of the counter. It is the laboratory's responsibility to ensure the suitability of this method for the water samples tested.

Abstract

Похожие стандарты

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Overview

EN ISO 9696:2017 - "Water quality - Gross alpha activity - Test method using thick source (ISO 9696:2017)" is a standardized laboratory method adopted by CEN for measuring gross alpha activity in non-saline waters, including raw and potable waters. The method targets alpha‑emitting radionuclides that are non‑volatile up to 350 °C and uses a thick source (concentrated) sample preparation and counting approach. Laboratories must confirm the method’s suitability for their samples based on water chemistry and instrument performance.

Key topics and technical requirements

Scope: Applicable to non‑saline waters; designed for alpha emitters not volatile to 350 °C; intended for raw and drinking water monitoring.

Analytical principle: Preparation of a concentrated, thick source followed by alpha counting; includes background correction and calibration.

Critical procedure stages (as specified in the standard):

Sampling and pretreatment
Concentration stage
Sulfation and ignition of residues
Thick source preparation
Measurement and background determination
Calibration and preparation of calibration sources

Performance and quality:

Sensitivity, bias, detection limit and decision threshold must be assessed.
Performance depends on total soluble salts in the sample and on counter characteristics (background count rate, counting efficiency).
Controls for contamination and specific radionuclide losses (e.g., radon, polonium) are required.

Laboratory responsibility: Verify method suitability for the sample matrix and demonstrate performance characteristics and uncertainty.

Applications and users

Environmental and public health laboratories performing routine drinking water surveillance

Water utilities monitoring gross alpha activity in supply sources

Regulatory agencies and compliance testing bodies

Emergency response teams requiring rapid screening of multiple water samples Practical uses:

Screening for elevated natural or anthropogenic alpha radioactivity in drinking and raw waters

Supporting compliance with national limits and guidance (e.g., WHO screening guidance for gross alpha)

Providing a rapid, standardized gross‑alpha screening result prior to more specific radionuclide analysis

Related standards and references

ISO/IEC Guide 98‑3 (uncertainty of measurement)

ISO 5667‑20 (sampling guidelines for radioactivity in water)

WHO guidelines on drinking‑water quality (screening levels, context for gross alpha)

Annex A (informative) in EN ISO 9696:2017 provides performance criteria and acceptance guidance

EN ISO 9696:2017 is an essential reference for laboratories performing gross alpha screening using thick‑source techniques, ensuring consistent, auditable results across environmental and drinking‑water monitoring programs.

EN ISO 9696:2017

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and users

Related standards and references

Технические детали

ISO 9696:2017

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