EN 45544-2:2015

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Arbeitsplatzatmosphäre - Elektrische Geräte für die direkte Detektion und direkte Konzentrationsmessung toxischer Gase und Dämpfe - Teil 2: Anforderungen an das Betriebsverhalten von Geräten, die für Expositionsmessungen eingesetzt werdenAtmosphères des lieux de travail - Appareillage électrique utilisé pour la détection directe des vapeurs et gaz toxiques et le mesurage direct de leur concentration - Partie 2: Exigences de performance pour les appareillages utilisés pour la gestion de l'expositionWorkplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 2: Performance requirements for apparatus used for exposure measurement13.320Alarmni in opozorilni sistemiAlarm and warning systems13.040.30Kakovost zraka na delovnem mestuWorkplace atmospheresICS:Ta slovenski standard je istoveten z:EN 45544-2:2015SIST EN 45544-2:2015en,fr,de01-maj-2015SIST EN 45544-2:2015SLOVENSKI
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EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 45544-2
January 2015 ICS 13.040.30; 13.320
Supersedes
EN 45544-2:1999
English Version
Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 2: Performance requirements for apparatus used for exposure measurement
Atmosphères des lieux de travail - Appareillage électrique utilisé pour la détection directe des vapeurs et gaz toxiques et le mesurage direct de leur concentration - Partie 2: Exigences de performance pour les appareillages utilisés pour la gestion de l'exposition
Arbeitsplatzatmosphäre - Elektrische Geräte für die direkte Detektion und direkte Konzentrationsmessung toxischer Gase und Dämpfe - Teil 2: Anforderungen an das Betriebsverhalten von Geräten, die für Expositionsmessungen eingesetzt werden This European Standard was approved by CENELEC on 24 November 2014. CEN and 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 CEN and 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 CEN and CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN and CENELEC members are the national standards bodies and national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and 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 © 2015 CEN/CENELEC All rights of exploitation in any form and by any means reserved worldwide for CEN national Members and for CENELEC Members.
Ref. No. EN 45544-2:2015 E SIST EN 45544-2:2015

Contents Page Foreword . 3 Introduction . 4 1 Scope . 5 2 Normative references . 5 3 Terms and definitions . 5 4 General requirements . 5 5 Performance requirements . 5 5.1 General . 5 5.2 Standard requirements . 5 5.3 Unpowered storage . 6 5.4 Measurement of deviations . 6 5.5 Mechanical tests . 6 5.5.1 Vibration . 6 5.5.2 Drop test . 6 5.6 Environmental tests . 6 5.6.1 Temperature . 6 5.6.2 Pressure . 6 5.6.3 Humidity . 7 5.6.4 Air velocity . 7 5.7 Performance tests . 7 5.7.1 Alarm set point(s) . 7 5.7.2 Time to alarm or alarm reading . 7 5.7.3 Flow rate . 7 5.7.4 Warm-up time . 7 5.7.5 Time of response . 7 5.7.6 Time of recovery . 7 5.7.7 Addition of sampling probe (portable and transportable apparatus only) . 7 5.7.8 Field calibration kit . 7 5.7.9 Gas concentrations above the full scale indication . 8 5.7.10 Extended operation in test gas . 8 5.7.11 Orientation tests . 8 5.8 Electrical tests . 8 5.8.1 Battery capacity . 8 5.8.2 Power supply variations . 8 5.8.3 Electromagnetic compatibility . 8 5.8.4 Time-weighted average (TWA) function . 8 5.9 Stability . 8 5.10 Verification of software and digital components . 8 6 Uncertainty of measurement and lower limit of measurement. 9 6.1 Uncertainty of measurement . 9 6.2 Lower limit of measurement . 9 Annex A (informative)
Table of significant changes in comparison to EN 45544-2:1999 . 10 SIST EN 45544-2:2015

Foreword This document (EN 45544-2:2015) has been prepared by CEN/CENELEC Joint Working Group Continuous Measuring Instruments (JWG CMI). The following dates are 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) 2015-11-24 • latest date by which the national standards conflicting with this document have to be withdrawn (dow) 2017-11-24 This document supersedes EN 45544-2:1999. SIST EN 45544-2:2015

Introduction National laws and regulations based on European Directives require the assessment of the potential exposure of a worker to chemical agents in workplace atmospheres. EN 45544, Workplace atmospheres – Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours, consists of the following parts: — Part 1: General requirements and test methods; — Part 2: Performance requirements for apparatus used for exposure measurement; — Part 3: Performance requirements for apparatus used for general gas detection; — Part 4: Guide for selection, installation, use and maintenance. EN 45544 series is based on EN 482 which specifies general performance requirements for procedures for measuring the concentration of chemical agents in workplace atmospheres. These performance requirements are intended to apply under environmental conditions present at the workplace. However, because a wide range of environmental conditions are encountered in practice, this document specifies requirements that have to be fulfilled by measuring procedures when tested under prescribed laboratory conditions. EN 45544-2 details the performance requirements outlined in EN 482 specifically for electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours intended for exposure measurement. EN 45544-3 details the performance requirements for general gas detection apparatus, e.g. safety warning, leak detection. The measuring range will be defined by the manufacturer. In general, the requirements for accuracy will be higher for EN 45544-2 apparatus than for EN 45544-3 apparatus. The same apparatus may be used for applications covered by EN 45544-2 and EN 45544-3. EN 45544 series will help manufacturers, test laboratories and users of apparatus to adopt a consistent approach to, and provide a framework for, the assessment of performance criteria. It is the manufacturer’s primary responsibility to ensure that the apparatus meets the requirements laid down in this European Standard including environmental influences which can be expected to affect performance. For a given measurement task the range over which the requirements for the relative expanded uncertainty have to be met depends on the limit value. However, for most chemical agents the limit values have not been harmonized at the European level. Therefore, it was decided to use a reference value (standard test gas concentration) instead of the limit value for the performance tests. The list of standard test gas volume fractions is given in Annex A of EN 45544-1:2015. The values chosen are equal to or close to the limit values used in different European countries but are intended to be used only for type testing apparatus without any legal implications. Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours generate readings in clean air (zero readings) which vary with environmental conditions and time. This standard therefore includes test methods and requirements for acceptable variations in zero readings which are additional to the general requirements of EN 482. SIST EN 45544-2:2015

1 Scope This European Standard specifies the performance requirements outlined in EN 482 specifically for electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours in workplace atmospheres. This European Standard is applicable to apparatus used for exposure measurement. 2 Normative references 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. EN 45544-1:2015, Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 1: General requirements and test methods EN 50270, Electromagnetic compatibility - Electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen EN 50271, Electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen - Requir
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