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IEC 61577-3:2011

(Main)

Radiation protection instrumentation - Radon and radon decay product measuring instruments - Part 3: Specific requirements for radon decay product measuring instruments

Radiation protection instrumentation - Radon and radon decay product measuring instruments - Part 3: Specific requirements for radon decay product measuring instruments

IEC 61577-3:2011 describes the specific requirements for instruments measuring the volumetric activity of airborne short-lived radon decay products and/or their ambient potential alpha-energy concentration outdoors, in dwellings, and in workplaces including underground mines. This standard applies practically to all types of electronic instruments that are based on grab sampling, continuous sampling technique and electronic integrating measurement methods. This new edition includes the following significant technical changes with respect to the previous edition:
- implementation of new requirements and tests concerning radiation detection performance;
- implementation of new requirements and tests concerning environmental performance;
- harmonization of the requirements and tests concerning electrical and mechanical performance with other standards in the area of radiation protection instrumentation.

Instrumentation pour la radioprotection - Instruments de mesure du radon et des descendants du radon - Partie 3: Exigences spécifiques concernant les instruments de mesure des descendants du radon

La CEI 61577-3:2011 décrit les exigences spécifiques relatives aux instruments destinés au mesurage de l'activité volumétrique des descendants du radon à vie courte en suspension dans l'air et/ou de leur énergie alpha potentielle volumique à l'extérieur, dans les habitations et sur les lieux de travail, y compris dans les mines souterraines. En pratique, la présente Norme s'applique à tous les types d'instruments électroniques utilisant des méthodes basées sur un prélèvement instantané, un prélèvement en continu et des méthodes de mesure électroniques intégrées. Cette nouvelle édition constitue une révision technique et inclut les changements techniques significatifs suivants par rapport à l'édition précédente:
- ajout de nouvelles exigences et de nouveaux essais concernant les performances de détection de rayonnement;
- ajout de nouvelles exigences et de nouveaux essais concernant les performances environnementales;
- harmonisation des exigences et des essais, concernant les performances électriques et mécaniques, avec d'autres normes du domaine de l'instrumentation pour la radioprotection.

General Information

Status
Published
Publication Date
08-Dec-2011
ICS
01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
13.280 - Radiation protection
Technical Committee
SC 45B - Radiation protection instrumentation
Drafting Committee
WG 10 - TC 45/SC 45B/WG 10
Current Stage
PPUB - Publication issued
Start Date
15-Jan-2012
Completion Date
09-Dec-2011
Ref Project

Relations

Revises
IEC 61577-3:2002 - Radiation protection instrumentation - Radon and radon decay product measuring instruments - Part 3: Specific requirements for radon decay product measuring instruments
Effective Date
05-Sep-2023

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IEC 61577-3:2011 - Radiation protection instrumentation - Radon and radon decay product measuring instruments - Part 3: Specific requirements for radon decay product measuring instrumentsIEC 61577-3:2011 - Radiation protection instrumentation - Radon and radon decay product measuring instruments - Part 3: Specific requirements for radon decay product measuring instruments
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IEC 61577-3:2011 - Radiation protection instrumentation - Radon and radon decay product measuring instruments - Part 3: Specific requirements for radon decay product measuring instruments
English and French language
53 pages
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IEC 61577-3 ®
Edition 2.0 2011-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Radiation protection instrumentation – Radon and radon decay product
measuring instruments –
Part 3: Specific requirements for radon decay product measuring instruments

Instrumentation pour la radioprotection – Instruments de mesure du radon et
des descendants du radon –
Partie 3: Exigences spécifiques concernant les instruments de mesure des
descendants du radon
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by
any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IEC or
IEC's member National Committee in the country of the requester.
If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,
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et les microfilms, sans l'accord écrit de la CEI ou du Comité national de la CEI du pays du demandeur.
Si vous avez des questions sur le copyright de la CEI ou si vous désirez obtenir des droits supplémentaires sur cette
publication, utilisez les coordonnées ci-après ou contactez le Comité national de la CEI de votre pays de résidence.

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About the IEC
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International Standards for all electrical, electronic and related technologies.

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IEC 61577-3 ®
Edition 2.0 2011-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Radiation protection instrumentation – Radon and radon decay product
measuring instruments –
Part 3: Specific requirements for radon decay product measuring instruments

Instrumentation pour la radioprotection – Instruments de mesure du radon et
des descendants du radon –
Partie 3: Exigences spécifiques concernant les instruments de mesure des
descendants du radon
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX U
ICS 13.280 ISBN 978-2-88912-839-6

– 2 – 61577-3 © IEC:2011
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 8
4 General design considerations . 10
4.1 Design considerations for the measurements . 10
4.1.1 Deposition of radon decay products on surfaces . 10
4.1.2 Airflow system . 11
4.2 Design considerations for handling and maintenance . 11
4.2.1 Portability . 11
4.2.2 Application under heavy environmental conditions . 11
4.2.3 Automatic operation . 11
4.2.4 Reliability . 11
4.2.5 Capability for operational testing . 12
4.2.6 Adjustment and maintenance facilities . 12
4.2.7 Acoustic noise level . 12
4.2.8 Electromagnetic interference . 12
4.2.9 Storage . 12
5 Technical components . 12
5.1 Sampling assembly . 12
5.2 Radiation detection assembly . 13
5.3 Data processing and recording . 13
5.4 Measurement display . 13
5.5 Power supply . 14
6 Test conditions . 14
6.1 General . 14
6.2 Standard test conditions . 15
6.3 Execution of tests . 15
6.4 Test sources . 15
6.4.1 Solid sources . 15
6.4.2 Reference atmospheres . 15
7 Requirements and tests concerning radiation detection performance . 16
7.1 Reference response to a test source . 16
7.1.1 Requirements . 16
7.1.2 Test method . 16
7.2 Cross interference to other radon isotopes . 16
7.2.1 Requirements . 16
7.2.2 Test method . 16
7.3 Linearity of indication . 17
7.3.1 Requirements . 17
7.3.2 Test method . 17
7.4 Instrument statistical fluctuation . 17
7.4.1 Requirements . 17
7.4.2 Test method . 17
7.5 Response time . 18

61577-3 © IEC:2011 – 3 –
7.5.1 Requirements . 18
7.5.2 Test method . 18
7.6 Signal accumulation . 18
7.6.1 Requirements . 18
7.6.2 Test method . 19
8 Requirements and tests concerning air circuit performance . 19
8.1 General . 19
8.2 Flow-rate stability . 19
8.2.1 Requirements . 19
8.2.2 Test method . 19
8.3 Accuracy of the flow-rate measurement . 19
8.3.1 Requirements . 19
8.3.2 Test method . 19
8.4 Effect of filter pressure drop . 20
8.4.1 Requirements . 20
8.4.2 Test method . 20
8.5 Low sampling flow-rate indication . 20
8.5.1 Requirements . 20
8.5.2 Test method . 20
9 Requirements and tests concerning environmental performance . 20
9.1 Response to ambient gamma radiation . 20
9.1.1 Requirements . 20
9.1.2 Test method . 21
9.2 Number concentration of aerosols . 21
9.2.1 Requirements . 21
9.2.2 Test method . 21
9.3 Ambient temperature . 21
9.3.1 Requirements . 21
9.3.2 Test method . 21
9.4 Relative humidity and condensed moisture . 21
9.4.1 Requirements .
...

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