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EN ISO 9271:2024

(Main)

Decontamination of radioactively contaminated surfaces - Testing of decontamination agents for textiles (ISO 9271:2023)

Decontamination of radioactively contaminated surfaces - Testing of decontamination agents for textiles (ISO 9271:2023)

This document applies to the testing of the decontamination of textiles, which are contaminated by radioactive materials.
The test method describes the technique to assess the efficiency of decontamination agents (see ISO 7503-1 and ISO 7503-3).
This document applies to the testing of detergents, which may be used in aqueous solutions for the purpose of cleaning radioactively contaminated textiles.
The radionuclides used in this test are those commonly found in the nuclear industry (60Co and 137Cs or 134Cs) in aqueous form. The test can also be adapted for use with other radionuclides and other chemical forms, depending on the customer requirements, if the solutions are chemically stable and do not damage the test specimen.
The test method is not suitable if the radionuclide emits low energy gamma rays, like 55Fe, or low energy beta or alpha particles that are readily attenuated in the textile fabrics, or if the nuclide has a chemical or isotopic interaction with the detergent used in the method (e.g. tritium which could be in several chemical forms).
The test method does not apply to the testing of the ability of detergents to remove non-radioactive dirt.

Dekontamination von radioaktiv kontaminierten Oberflächen - Prüfung von Dekontaminationswaschmitteln für Textilien (ISO 9271:2023)

Dieses Dokument ist anwendbar für die Prüfung der Dekontamination von Textilien, die durch radioaktive Stoffe kontaminiert sind.
Das Prüfverfahren beschreibt die Technik zur Bewertung der Wirksamkeit von Dekontaminations-waschmitteln (siehe ISO 7503 1 und ISO 7503 3).
Dieses Dokument ist für die Prüfung von Waschmitteln anwendbar, die in wässrigen Lösungen für den Zweck der Reinigung radioaktiv kontaminierter Textilien angewendet werden können.
Bei den in dieser Prüfung verwendeten Radionukliden handelt es sich um die in der nuklearen Industrie häufig vorkommenden Radionuklide (60Co und 137Cs oder 134Cs) in wässriger Form. Abhängig von den Anforderungen des Kunden kann die Prüfung auch für die Verwendung mit anderen Radionukliden und anderen chemischen Formen angepasst werden, sofern die Lösungen chemisch stabil sind und die Untersuchungsprobe nicht beschädigen.
Das Prüfverfahren ist nicht geeignet, wenn das Radionuklid niederenergetische Gammastrahlen, wie 55Fe, oder niederenergetische Beta  oder Alpha Partikel emittiert, die in textilen Geweben schnell abgeschwächt werden, oder falls das Radionuklid chemisch oder isotopisch mit dem bei dem Verfahren verwendeten Waschmittel interagiert (z. B. Tritium, das in mehreren chemischen Formen vorliegen könnte).
Das Prüfverfahren ist nicht für die Prüfung der Fähigkeit von Waschmitteln, nicht radioaktiven Schmutz zu beseitigen, anwendbar.

Décontamination des surfaces contaminées par la radioactivité - Essai des agents de décontamination pour les textiles (ISO 9271:2023)

Dekontaminacija radioaktivno onesnaženih površin - Testiranje dekontaminacijskih sredstev za tekstil (ISO 9271:2023)

General Information

Status
Published
Publication Date
16-Jul-2024
ICS
13.280 - Radiation protection
Technical Committee
CEN/TC 430 - Nuclear energy, nuclear technologies, and radiological protection
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
17-Jul-2024
Due Date
18-Apr-2026
Completion Date
17-Jul-2024
Ref Project
SIST EN ISO 9271:2024 - Decontamination of radioactively contaminated surfaces - Testing of decontamination agents for textiles (ISO 9271:2023)

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SLOVENSKI STANDARD
01-september-2024
Dekontaminacija radioaktivno onesnaženih površin - Testiranje
dekontaminacijskih sredstev za tekstil (ISO 9271:2023)
Decontamination of radioactively contaminated surfaces - Testing of decontamination
agents for textiles (ISO 9271:2023)
Dekontamination von radioaktiv kontaminierten Oberflächen - Prüfung von
Dekontaminationswaschmitteln für Textilien (ISO 9271:2023)
Décontamination des surfaces contaminées par la radioactivité - Essai des agents de
décontamination pour les textiles (ISO 9271:2023)
Ta slovenski standard je istoveten z: EN ISO 9271:2024
ICS:
13.280 Varstvo pred sevanjem Radiation protection
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 9271
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2024
EUROPÄISCHE NORM
ICS 13.280
English Version
Decontamination of radioactively contaminated surfaces -
Testing of decontamination agents for textiles (ISO
9271:2023)
Décontamination des surfaces contaminées par la Dekontamination von radioaktiv kontaminierten
radioactivité - Essai des agents de décontamination Oberflächen - Prüfung von
pour les textiles (ISO 9271:2023) Dekontaminationswaschmitteln für Textilien (ISO
9271:2023)
This European Standard was approved by CEN on 7 July 2024.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 9271:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO 9271:2023 has been prepared by Technical Committee ISO/TC 85 “Nuclear energy,
nuclear technologies, and radiological protection” of the International Organization for Standardization
(ISO) and has been taken over as EN ISO 9271:2024 by Technical Committee CEN/TC 430 “Nuclear
energy, nuclear technologies, and radiological protection” the secretariat of which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by January 2025, and conflicting national standards shall
be withdrawn at the latest by January 2025.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 9271:2023 has been approved by CEN as EN ISO 9271:2024 without any modification.

INTERNATIONAL ISO
STANDARD 9271
Second edition
2023-02
Decontamination of radioactively
contaminated surfaces — Testing of
decontamination agents for textiles
Décontamination des surfaces contaminées par la radioactivité —
Essai des agents de décontamination pour les textiles
Reference number
ISO 9271:2023(E)
ISO 9271:2023(E)
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 9271:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and symbols . 1
3.1 Terms and definitions . 2
3.2 Symbols . 3
4 Principle . 3
5 Apparatus . 4
5.1 Beakers . 4
5.2 Radiation detector . . . 4
5.3 Pipettes . 5
5.4 Two polytetrafluoroethylene (PTFE) or quartz ampoules . 5
5.5 Thermostat . 5
5.6 Storage bottles . 5
5.7 Drying cabinet . . 5
5.8 Mounting . 5
5.9 Cage-stirrer apparatus . 6
6 Contamination and decontamination agents . 6
6.1 Contaminant solutions . 6
6.1.1 Composition of contaminant solutions . 6
6.1.2 Preparation of the contaminant solutions. 6
6.1.3 Storage of the contaminant solution . 7
6.2 Decontamination agents . 7
7 Contaminated textile specimen .7
7.1 Reference materials . 7
7.2 Number and dimensions of contaminated textile specimens . 8
8 Procedure .8
8.1 Determining the specific pulse rate of each contaminant solution . 8
8.2 Preparation of the textile specimens . 8
8.3 Contamination . 9
8.3.1 Preparation . 9
8.3.2 Procedure . 9
8.4 Decontamination . 10
8.4.1 Preparation . 10
8.4.2 Procedure . 10
8.5 Determining the residual pulse rate, I . 11
r
9 Calculation of results and assessment of ease of decontamination .11
10 Test report .12
Annex A (informative) Clamp specimen holder .13
Annex B (normative) Cage-stirrer apparatus for decontamination .14
60 137 134
Annex C (informative) Formulae for the preparation of Co and Cs or Cs contaminant
solutions .23
Annex D (informative) Example of a test report .26
Bibliography .
...

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