BS EN 60846-1-2014 Radiation protection instrumentation Ambient and or directional dose equivalent (rate) meters and or monitors for beta X and gamma radiation Portable workplace a.pdf
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1、BSI Standards PublicationRadiation protection instrumentation Ambientand/or directional dose equivalent (rate) meters and/or monitors for beta, X and gamma radiationPart 1: Portable workplace and environmental meters and monitorsBS EN 60846-1:2014BS EN 60846-1:2014 BRITISH STANDARDNational forewordT
2、his British Standard is the UK implementation of EN 60846-1:2014. It is derived from IEC 60846-1:2009. It supersedes BS EN 60846:2004 which is withdrawn.The CENELEC common modifications have been implemented at the appropriate places in the text. The start and finish of each common modification is i
3、ndicated in the text by tags .The UK participation in its preparation was entrusted to Technical Committee NCE/2, Radiation protection and measurement.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all th
4、e necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2014. Published by BSI Standards Limited 2014ISBN 978 0 580 78494 1ICS 13.280Compliance with a British Standard cannot confer immunity from legal obligations.This British Standa
5、rd was published under the authority of the Standards Policy and Strategy Committee on 30 September 2014.Amendments/corrigenda issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 60846-1 September 2014 ICS 13.280 Supersedes EN 60846:2004English Version Radi
6、ation protection instrumentation - Ambient and/or directional dose equivalent (rate) meters and/or monitors for beta, X and gamma radiation - Part 1: Portable workplace and environmental meters and monitors (IEC 60846-1:2009 , modified) Instrumentation pour la radioprotection - Instruments pour lame
7、sure et/ou la surveillance de lquivalent de dose (ou du dbit dquivalent de dose) ambiant et/ou directionnel pour les rayonnements bta, X et gamma - Partie 1: Instruments de mesure et de surveillance portables pour les postes de travail et lenvironnement (CEI 60846-1:2009 , modifie) Strahlenschutz-Me
8、ssgerte - Umgebungs- und/oder Richtungs-quivalentdosis(leistungs)-Messgerte und/oder Monitore fr Beta-, Rntgen- und Gammastrahlung - Teil 1: Tragbare Messgerte und Monitore fr den Arbeitsplatz und die Umgebung (IEC 60846-1:2009 , modifiziert) This European Standard was approved by CENELEC on 2014-07
9、-28. 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 obtai
10、ned 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
11、 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,
12、 Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrote
13、chnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 60846-1:2014 EBS EN 60846-1:2014EN 60846-1:2014 2 Forewor
14、d This document (EN 60846-1:2014) consists of the text of IEC 60846-1:2009 prepared by IEC/SC 45B “Radiation protection instrumentation“ of IEC/TC 45 “Nuclear instrumentation“, together with the common modifications prepared by CLC/TC 45B “Radiation protection instrumentation“. The following dates a
15、re fixed: latest date by which this document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2015-07-28 latest date by which the national standards conflicting with this document have to be withdrawn (dow) 2017-07-28 This document supe
16、rsedes EN 60846:2004. Clauses, subclauses, notes, tables, figures and annexes which are additional to those in IEC 60846-1:2009 are prefixed “Z”. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held
17、 responsible for identifying any or all such patent rights. BS EN 60846-1:2014 3 EN 60846-1:2014 Endorsement notice The text of the International Standard IEC 60846-1:2009 was approved by CENELEC as a European Standard with agreed common modifications. In the official version, for Bibliography, the
18、following notes have to be added for the standards indicated: IEC 60325:2002 NOTE Harmonized as EN 60325:2004 (modified). IEC 61005:2003 NOTE Harmonized as EN 61005:2004 (modified). COMMON MODIFICATIONS All over the document Replace “1,5 MeV” with “1,33 MeV”. 3 Terms and definitions In the note of 3
19、.19, replace “Tables 5 to 8” with “Tables 5 to 9”. 4 Units and list of symbols In Table 2, delete the row starting with tmin. 5 General characteristics of ambient and directional dose equivalent (rate) meters In 5.7, replace “Tables 4 to 8” with “Tables 5 to 9”. 8 Radiation performance requirements
20、and tests In 8.9.2.2, replace the second paragraph by the following: The initial and final dose equivalent rates shall differ by a factor of 10 or more up to the factor for the change from background dose rate to the maximum dose rate of the rated range. The measurements shall be carried out for bot
21、h an increase and a decrease in the dose equivalent rate by this factor. The initial or the final dose equivalent rate shall be the background dose rate. 10 Mechanical characteristics of directional and ambient dose equivalent (rate) meters Add the following new subclause. 10.Z1 Drop test during ope
22、ration 10.Z1.1 Requirements Portable dose equivalent (rate) meters shall be able to withstand without damage, a drop from a height of 0,3 m onto a hard steel or concrete surface. BS EN 60846-1:2014The text of the international Standard IEC 60846-1:2009 was approved by CENELEC as a EuropeanStandard w
23、ith common modifications.EN 60846-1:2014 4 10.Z1.2 Test method The dose equivalent (rate) meter shall withstand at least one single drop from 0,3 m to each surface of dose equivalent (rate) meter so that the unit is still operable after the drop. The test may be performed either with one or more tes
24、t units in such a way that one drop onto each surface of the dose equivalent (rate) meter is tested. The instrument passes the test if the instrument response does not deviate after the 6 drop tests from the original response by more than - 17 % to + 25 %. The drop can make the instrument switch off
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