EN 61577-2:2017

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Radiation protection instrumentation - Radon and radon decay product measuring instruments - Part 2: Specific requirements for 222Rn and 220Rn measuring instruments17.240Merjenje sevanjaRadiation measurements13.280Varstvo pred sevanjemRadiation protectionICS:Ta slovenski standard je istoveten z:EN 61577-2:2017SIST EN 61577-2:2017en01-oktober-2017SIST EN 61577-2:2017SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 61577-2
August 2017 ICS 13.280 English Version
Radiation protection instrumentation - Radon and radon decay product measuring instruments - Part 2: Specific requirements for 222Rn and 220Rn measuring instruments (IEC 61577-2:2014 , modified)
Instrumentation pour la radioprotection - Instruments de mesure du radon et des descendants du radon - Partie 2: Exigences spécifiques pour les instruments de mesure du 222Rn et du 220Rn (IEC 61577-2:2014 , modifiée)
Strahlenschutz-Messgeräte - Geräte für die Messung von Radon und Radon-Folgeprodukten - Teil 2: Besondere Anforderungen für Messgeräte für Rn-222 und Rn-220 (IEC 61577-2:2014 , modifiziert) This European Standard was approved by CENELEC on 2017-06-16. CENELEC 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 CENELEC 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 CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17,
B-1000 Brussels © 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 61577-2:2017 ESIST EN 61577-2:2017

The following dates are fixed:
• la≥es≥ da≥e by which ≥his documen≥ has ≥o be implemen≥ed a≥ na≥ional level by publica≥ion of an iden≥ical na≥ional s≥anda±d o± by endo±semen≥ (dop) 2018-06-16 • la≥es≥ da≥e by which ≥he na≥ional s≥anda±ds conflic≥ing wi≥h ≥his documen≥ have ≥o be wi≥hd±awn (dow) 2020-06-16
Clauses, subclauses, no≥es, ≥ables, figu±es and anne•es which a±e addi≥ional ≥o ≥hose in IEC 61577-2:2014 a±e p±efi•ed “Z”.
This documen≥ has been p±epa±ed unde± a manda≥e given ≥o CENELEC by ≥he Eu±opean Commission and ≥he Eu±opean F±ee T±ade Associa≥ion. Endorsement notice The text of the International Standard IEC 61577-2:2014 was approved by CENELEC as a European Standard with agreed common modifications. SIST EN 61577-2:2017

Table 1 — Reference conditions and standard test conditions (unless otherwise indicated by the manufacturer) In the line “Ambient temperature” replace “22 °C” with “24 °C”. In the line “Relative humidity” replace “50 %” with “40 %. In the line “Ambient dose equivalent” replace “< 0,20 µSv⋅h–1” in the second column with “Negligible” and “0,20” in the third column with “0,25”. Then the table looks like the following: Quantity Reference conditions Standard test conditions Warm-up time 10 min ≥ 10 min Activity concentration of 222Rnb < 10 Bq⋅ m–3 < 10 Bq⋅ m–3 Activity concentration of 220Rnc < 10 Bq⋅ m–3 < 10 Bq⋅ m–3 Ambient temperature 20 °C 18 °C to 24 °C
Relative humidity 65 % 40 % to 75 % Atmospheric pressure 101,3 kPa 90 kPa to 106 kPaa Power supply voltage Nominal supply voltage UN Nominal supply voltage UN ± 0,5 % AC power supply frequency Nominal frequency Nominal frequency ± 0,5 % AC power supply waveform Sinusoidal Sinusoidal with a total harmonic distortion less than 5 % Ambient dose equivalent rate Negligible < 0,25 µSv⋅h–1
Electromagnetic field of external origin Negligible Negligible Magnetic induction of external origin Negligible Negligible Radio frequency Negligible Less than the lowest value that causes interference Sampling flow-rate Nominal flow-rate Nominal flow-rate ± 0,5 % a
Where the detection technique is particularly sensitive to variation in atmospheric pressure, the conditions shall be limited to ± 0,5 % of the reference pressure. b
Only for instruments measuring of 220Rn. c
Only for instruments measuring of 222Rn. SIST EN 61577-2:2017

Normative references to international publications with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here: www.cenelec.eu.
Publication Year Title EN/HD Year IEC 60068-2-27 -
Environmental testing -- Part 2-27: Tests - Test Ea and guidance: Shock EN 60068-2-27 -
IEC 61000-6-4 -
Electromagnetic compatibility (EMC) -- Part 6-4: Generic standards - Emission standard for industrial environments EN 61000-6-4 -
IEC 61140 -
Protection against electric shock - Common aspects for installation and equipment EN 61140 -
IEC 61187 -
Electrical and electronic measuring equipment - Documentation EN 61187 -
IEC 61577-1 -
Radiation protection instrumentation - Radon and radon decay product measuring instruments - Part 1: General principles - -
ISO 11665-1 -
EN ISO 11665-1 -
ISO/IEC Guide 98-3 -
Uncertainty of measurement -- Part 3: Guide to the expression of uncertainty in measurement (GUM:1995) - -
IEC 61577-2 Edition 2.0 2014-07 INTERNATIONAL STANDARD NORME INTERNATIONALE Radiation protection instrumentation – Radon and radon decay product measuring instruments –
Part 2: Specific requirements for 222Rn and 220Rn measuring instruments
Instrumentation pour la radioprotection – Instruments de mesure du radon et des descendants du radon –
Partie 2: Exigences spécifiques pour les instruments de mesure du 222Rn et du 220Rn
INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE T ICS 13.280 PRICE CODE CODE PRIX ISBN 978-2-8322-1675-0
– 2 – IEC 61577-2:2014 © IEC 2014 CONTENTS FOREWORD . 4 INTRODUCTION . 6 1 Scope . 7 2 Normative references . 7 3 Terms and definitions . 8 4 General design considerations. 9 4.1 Design considerations for the measurements . 9 4.1.1 General . 9 4.1.2 Effects caused by physical properties of 222Rn and 220Rn . 10 4.2 Design considerations for handling and maintenance . 10 4.2.1 Portability . 10 4.2.2 Application under harsh environmental conditions . 10 4.2.3 Automatic operation . 11 4.2.4 Reliability . 11 4.2.5 Capability for operational testing . 11 4.2.6 Adjustment and maintenance facilities . 11 4.2.7 Acoustic noise level . 11 4.2.8 Electromagnetic interference . 11 4.2.9 Storage . 12 5 Technical components . 12 5.1 Sampling assembly . 12 5.2 Radiation detection assembly . 12 5.3 Data processing and recording . 13 5.4 Measurement display . 13 5.5 Power supply . 13 6 Test conditions . 14 6.1 General . 14 6.2 Standard test conditions . 14 6.3 Execution of tests . 14 6.4 Reference atmospheres . 14 7 Requirements and tests concerning radiation detection performance . 15 7.1 Reference response to a test source . 15 7.1.1 Requirements . 15 7.1.2 Test method . 15 7.2 Cross-interference to other radon isotopes . 15 7.2.1 Requirements . 15 7.2.2 Test method . 15 7.3 Linearity of indication . 15 7.3.1 Requirements . 15 7.3.2 Test method . 16 7.4 Instrument statistical fluctuation . 16 7.4.1 Requirements . 16 7.4.2 Test method . 16 7.5 Response time . 17 7.5.1 Requirements . 17 SIST EN 61577-2:2017

IEC 61577-2:2014 © IEC 2014 – 3 – 7.5.2 Test method . 17 7.6 Signal accumulation . 17 7.6.1 Requirements . 17 7.6.2 Test method . 17 8 Requirements and tests concerning air circuit performance . 17 8.1 General . 17 8.2 Flow-rate stability . 18 8.2.1 Requirements . 18 8.2.2 Test method . 18 8.3 Accuracy of the air flow-rate measurement . 18 8.3.1 Requirements . 18 8.3.2 Test method . 18 8.4 Effect of filter pressure drop . 18 8.4.1 Requirements .
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