BS EN 45544-1-2000 Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - General requirements.pdf

1、BRITISH STANDARD Workplace amospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 1: General requirements and test methods The European Standard EN 45544-1:1999 has the status of a British Standard ICs 13.040.30; 13.320

2、NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN t5544- 1 :ZOO0 Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD*BSI BS EN 45544-L-ENGL 2000 = Lb24

3、bL9 0832695 T9L 6 BS EN 45544-1:2000 direcion of the Electrotechnical Amd. No. Date Sector Committee, was published National foreword Comments This British Standard is the official English language version of EN 45544-1:1999. The UK participation in its preparation was enmted by Technical Committee

4、GEL31, Electrical apparatus for explosive atmospheres, to Subcommittee GELBU19, Gas detectors, which has the responsibility to: - aid enquirers to understand the text; - present to the responsible European committee any enquiries on the - monitor related intemational and European developments and pr

5、omulgate interpretation, or proposals for change, and keep the UK interests informed; them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement intemational or European publications ref

6、erred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index“, or by wing the “Find“ facility of the BSI Standards Electronic Catalogue. A British Standaxd does not purport to include all the necessary provisions of a

7、contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside hnt cover, the EN title page, pages 2 to 25 and a back c

8、over. The BSI copyright notice displayed in this document indicates when the document was last issued. Standards Committee and comes into effect on 15 February ZOO0 I I O BSI 02-2OO0 I l ISBN O 580 34234 4 I Copyright European Committee for Standardization Provided by IHS under license with CENNot f

9、or ResaleNo reproduction or networking permitted without license from IHS-,-,- STD-BSI BS EN 45544-5-ENGL 2000 m I1624669 0832696 928 EUROPEAN STANDARD EN 45544-1 NORME EUROPENNE EUROPISCHE NORM November 1999 ICs 13.040.30; 13.320 English version Workplace atmospheres - Electrical apparatus used for

10、 the direct detection and direct concentration measurement of toxic gases and vapours - Part 1: General requirements and test methods Atmosphres des lieux de travail - Appareillage lectrique utilis pour la dtection directe des vapeurs et gaz toxiques et le mesurage direct de leur concentration - Par

11、tie 1: Exigences genrales et mbthodes dessai Arbeitsplatzatmosphre - Elektrische Gerte fur die direkte Detektion und direkte Konzentrationsmessung toxischer Gase und Dmpfe - Teil 1: Allgemeine Anforderungen und PriHverfahren This European Standard was approved by CEN on 5 September 1999 and by CENEL

12、EC on 15 November 1999 CENICENELEC members are bound to comply with the CENICENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-todate lists and bibliographical references concerning such national

13、standards may be obtained on application to the Central Secretariat or to any CENICENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by traislation under the responsibility of a CENICENELEC member into its own lang

14、uage and notified to the Central Secretariat has the same stdus as the official versions. CENICENELEC members are the national standards bodies and national electrotechnical committees, respectively, of Austria, Bslgum, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Ita

15、ly, Luxembourg, Netherlands, Norway, Portugal,Spain, Sweden, Switzerland and United Kingdom. CEN Central Secretariat: rue de Stassart, 36 B-1050 Brussels CENELEC CENELEC Central Secretariat: B-1050 Brussels rue de Stassart, 35 Q 1999 CENICENELEC All rights of exploitation in any form and by any mean

16、s reserved worldwide for CEN national Members and for CENELEC Members. Ref. No. EN 45544-1:1999 E Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD=BSI BS EN 45544-1-ENGL 2000

17、M Lb24bbS 0832677 8bY Page 2 EN 45544-1 1999 Contents Page Foreword 4 Introduction . 5 1 2 3 4 4.1 4.2 4.3 4.4 4.5 4.6 4.6.1 4.6.2 4.7 5 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 5.10 5.1 I 6 6.1 6.2 6.2.1 6.2.2 6.3 6.3.1 Scope 6 Normative references . 6 Definitions . ._. 7 General requirements 11 Mechani

18、cal construction 11 Indicating devices 11 Fault signals . 12 Adjustments . 12 Battery-powered apparatus and mains powered apparatus with integral battery back-up 12 Labelling and marking . 12 General 12 Identification of the gas to be detected . 12 Instruction manual . 12 Test conditions . 14 Genera

19、l 14 Sequence of tests 14 Preparation of apparatus before each particular test 15 Mask for calibration and test . 16 Environmental standard conditions . 16 Test gas . 16 Supply voltage . 16 Stabilization time 16 Multi-sensor apparatus 17 Orientation . 17 Calibration 17 Test methods 17 Unpowered stor

20、age . 17 Measurement of deviations . 17 Zero variation, overall uncertainty and calibration curve for EN 45544-2 apparatus 18 Overall uncertainty for EN 45544-3 apparatus . 18 Mechanical tests 18 Vibration . 18 o BSI 02-2000 Copyright European Committee for Standardization Provided by IHS under lice

21、nse with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-6.3.2 6.4 6.4.1 6.4.2 6.4.3 6.4.4 6.5 6.5.1 6.5.2 6.5.3 6.5.4 6.5.5 6.5.6 6.5.7 6.5.8 I 6.5.9 I 6.5.10 6.5.1 1 6.5.12 6.5.12.1 6.5.12.2 6.6 6.6.1 6.6.2 6.6.3 6.6.4 6.6.5 6.7 6.7.1 6.7.2 7 STD-BSI BS EN 455

22、44-l-ENGL 2000 Lbt4bb9 0832b98 7T0 Page 3 EN 45544-1:1999 Drop test . 18 Environmental tests . 18 Temperature 18 Pressure . 19 Humidity . 19 Air speed 19 Performance tests 19 Audible alarm (for personal, portable and transportable apparatus) 19 Alarm set point(s) . 19 Alarm response time (applicable

23、 to ail alarm instruments) 20 Flow failure warning . 20 Warm-up time 20 Time of response 20 Time of recovery . 20 Addition of sampling probe (portable and transportable apparatus only) . 21 Field verification kit 21 Gas concentrations above the upper limit of the measuring range 21 Extended operatio

24、n in standard test gas 21 Orientation tests . 21 Personal and portable apparatus . 21 Fixed and transportable apparatus 21 Electrical tests 21 Battery capacity for battery-powered personal and portable continuous duty apparatus 21 Mains power supply . 21 Electrical fault signal . Electromagnetic com

25、patibility . Time-weighted average (TWA) function (not applicable to apparatus according to EN 45544-3) . 22 Drift tests Personal. portable. transportable and fixed apparatus 22 Spot reading apparatus . 22 Test report 23 Annex A (nonnative) Standard test gas concentrations . 25 O BSI 02-2000 Copyrig

26、ht European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD-BSI BS EN q5544-L-ENGL 20DQ W Lb24bb7 01932b 637 Page 4 EN 45544-1 1999 Foreword This European Standard has been prepared by Technica

27、l Committee CENICLCNVG CMI, Continuous measuring instruments, the Secretariat of which is held by DIN 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 May 2000, and conflicting national standards s

28、hall be withdrawn at the latest by May 2000. According to the CENICENELEC Intemal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland,

29、 Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. O BSI 02-2000 Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD-BSI BS EN

30、Y5544-L-ENGL 2000 W Lb24bb9 08327013 169 Page 5 EN 45544-1 :I 999 Introduction This European Standard specifies general requirements and test methods for the determination of the performance characteristics of electrical apparatus used for the direct detection and direct concentration measurement of

31、 toxi - used only in laboratories for analysis or measurement; - used only for process measurement purposes; - used in the domestic environment; - used in environmental air pollution monitoring; - used for the measurement of combustible gases and vapours related to the risk of explosion. 2 Normative

32、 references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any

33、of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 482, Workplace atmosphere - General requirements for the performance of procedures for the measurement of

34、chemical agents EN 45544-2:1999, Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Patt 2; Petformance requirements for apparatus used for measuring concentrations in the region of limit values EN 45544-3: 199

35、9, Workplace atmospheres - Electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours - Part 3: Petformance requirements for apparatus used for measuring concentrations well above limit values EN 50270, Electromagnetic compatibility - Electrica

36、l apparatus for the detection and measurement of combustible gases, toxic gases or oxygen EN 60073, Coding of indicating devices and actuators by colours and supplementary means (lC 60073:1996) EN 60068-2-6, Environmental testing - Patt 2: Tests - Tests Fc: Vibration (sinusoidal) (IEC 60068-2-6:1995

37、 + Comgendum 1995) IS0 3534-1, Statistics, Vocabulary and symbols - Patt I: Probability and general statistical terms IS0 6141, Gas analysis - Calibration gas mixtures - Certificate of mixture preparation IS0 6142, Gas analysis - Preparation of calibration gas mixtures - Weighing methods IS0 6143, G

38、as analysis - Determination of composition of calibration gas mixtures - Comparison methods O BSI 02-2000 Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD.BS1 BS EN 4554Y-L-EN

39、GL 2000 W Lb24bb 0832702 T51 Page 7 EN 45544-1:1999 is0 6144, Gas analysis - Preparation of calibration gas mixtures - Static volumetric methods IS0 61 45-1, Gas analysis - Preparation of calibration gas mixture - Dynamic volumetric methods - Part 1: Methods of calibration IS0 6145-3, Gas analysis -

40、 Preparation of calibration gas mixtures - Dynamic volumetric methods - Part 3: Periodic injections into a owing gas stream IS0 61454, Gas analysis - Preparation of calibration gas mixtures - Dynamic volumetric methods - Part 4: Continuous injection methods IS0 6145-6, Gas analysis - Preparation of

41、calibration gas mixtures - Dynamic volumetric methods - Part 6: Sonic orifices IS0 6147, Gas analysis - Preparation of calibration gas mixtures - Saturation method IS0 6879:1995, Air quality - Performance characteristics and related concepts for air quality and measuring methods IS0 7504, Gas analys

42、is - Vocabulary 3 Definitions For the purposes of this European Standard the following definitions apply. 3.1 toxic gas or vapour general term for any gas or vapour that can be harmful to human health2). 3.2 clean air air which is free of gases or vapours to which the sensing element is sensitive or

43、 which influence the performance of the sensing element I 3.3 standard test gas (STG) test gas with a composition specified for each apparatus and gas to be tested. 3.4 mask for calibration and test a piece of equipment which can be attached to the apparatus to present a test gas to the sensor 3.5 v

44、olume ratio (VN) ratio of the volume of a component to the volume of the gas mixture, under specified conditions of temperature and pressure IS0 7504). 3.6 limit value (LV) a reference figure for the concentration of a chemical agent in air. EN 4821 3.7 short tem exposure limit (STEL) the time weigh

45、ted average concentration over a specified short period of time. NOTE The period is specified in National Regulations 3.8 time weighted average (NA) concentration the concentration of gas in air integrated over time and divided by the measuring period. *) For the purposes of this standard, the word

46、“toxic” should be taken to include “very toxic”, “toxic”, “harmful“, “corrosive”, “irritating”, “sensitizing”, “carcinogenic”, mutagenic”, “teratogenic”. O BSI 02-2000 Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking p

47、ermitted without license from IHS-,-,-STD-BSI BS EN 45544-II-ENGL 2000 Lb24bb9 0632703 996 81 Page 8 EN 45544-1 : 1999 3.9 fixed apparatus an apparatus which is intended to have all parts permanently installed. 3.10 transportable apparatus an apparatus not intended to be portable, but which can read

48、ily be moved from one place to another. 3.1 1 portable apparatus spot-reading or continuously sensing apparatus that has been designed to be readily carried from place to place and to be used whilst being carried. Portable apparatus is generally battery powered. 3.1 2 personal monitor a device, atta

49、ched to a person, that monitors the atmosphere in their breathing zone so that their exposure to toxic gases or vapours can be determined. 3.13 continuous duty apparatus apparatus which is continuously powered but may have continuous or intermittent sensing. 3.14 diffusion apparatus an apparatus in which the transfer of gas from the atmosphere to the gas sensor takes place by diffusion, .e. there