19/30383722 DC - BS EN ISO 22017. Water quality. Guidance for rapid radioactivity measurements in nuclear or radiological emergency situation

19/30383722 DC

BS EN ISO 22017. Water quality. Guidance for rapid radioactivity measurements in nuclear or radiological emergency situation

Status : Current, Draft for public comment   Published : July 2019

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This document provides guidelines to enable testing laboratory using rapid test methods on all types of water samples that may be contaminated following a nuclear or radiological emergency situation:

  • taking into account the specific context for the tests to be performed, e.g. an unknown and potentially unusual high level of contamination;

  • using or adjusting, when possible, radioactivity test method implemented during routine situation to obtain a result rapidly or applying specific rapid test methods previously validated by the laboratory, e.g. for 89Sr determination;

  • preparing the test laboratory to measure a large number of potentially contaminated samples.

The aim of this document is to ensure decision makers have reliable results needed to take actions on time and minimize the dose to the public.

Measurements are performed in order to minimize the risk for the public in checking the water quality of water supplies. For emergency situations, test results are compared to operational intervention levels.

Note

Operational intervention levels (OILs) are derived from IAEA Safety Standards[13] or national authorities[5].

A key can be to use the usual and routine methods in a faster manner. The goal of these rapid measurements is often to check an unusual radioactivity level in the test sample, to identify the radionuclides and their activity concentration levels and to establish compliance of the sampled water with intervention levels[21]. It should be noted that in such circumstances validation parameters are not always valid (impossible use of standard measuring geometries for gamma spectrometry…) and thus uncertainties associated with the test results may increase.

The first steps of the analytical approach is usually based on gross alpha and gross beta test methods considered as screening methods (adaptation of ISO 10704 and ISO 11704) and gamma spectrometry (adaptation of ISO 20042, ISO 10703 and ISO 19581). Then, when necessary[3], test method standards for specific radionuclides are adapted and applied (for example, 90Sr measurement following ISO 13160) as proposed in Annex A.

This document refers to a set of already published ISO standards. When appropriate, this document also refers to national standards or other publically available documents.

Screening techniques that can be carried out directly in the field are not part of this document.




Standard Number19/30383722 DC
TitleBS EN ISO 22017. Water quality. Guidance for rapid radioactivity measurements in nuclear or radiological emergency situation
StatusCurrent, Draft for public comment
Publication Date16 July 2019
Normative References(Required to achieve compliance to this standard)ISO 13168, ISO 19581, ISO 9696, ISO 13162, ISO 13165-1, ISO 13165-3, ISO 13160, ISO 9697, ISO 11704, ISO 20042, ISO 17294-2, ISO 10703, ISO 17025, ISO 13167, ISO 13166, ISO 13163, ISO 10704, ISO 9698, ISO 5667-1, ISO 5667-3, ISO 13161, ISO 13165-2
Informative References(Provided for Information)ISO 22313, ISO 22301, IAEA GSG-2 (2011), IAEA GSG-2, IAEA GS-R-2, ISO 5667-20
International RelationshipsISO/DIS 22017
Draft Expiry Date01 September 2019
DescriptorsRadioactivity, Radioactivity measurement, Measurement, Water, Quality
ICS13.060.60
13.280
17.240
Title in FrenchQualité de l'eau — Guide pour les mesurages rapides de radioactivité en situation d'urgence nucléaire ou radiologique
CommitteeEH/3/8
PublisherBSI
FormatA4
DeliveryYes
Pages27
File Size675 KB
NotesWarning: this draft is not current beyond its expiry date for comments.
Price£20.00


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