BS EN 1093-6-1998+A1-2008 Safety of machinery — nEvaluation of the nemission of airborne nhazardous nsubstances — nPart 6 Separation efficiency by mass nunducted outlet《机械安全 降低气载有害.pdf

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1、Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 03/03/2009 01:41, Uncontrolled Copy, (c) BSIg49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58h

2、azardous substances Part 6: Separation efficiency by mass, unducted outletICS 13.040.40; 23.120Safety of machinery Evaluation of the emission of airborne BRITISH STANDARDBS EN 1093-6:1998 +A1:2008BS EN 1093-6:1998+A1:2008Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 03/03/2009 01:41, Uncont

3、rolled Copy, (c) BSIThis British Standard was published under the authority of the Standards Committee and comes into effect on 15 January 1999 BSI 2008ISBN 978 0 580 61260 2Amendments/corrigenda issued since publicationDate Comments30 November 2008 Implementation of CEN amendment A1:2008 andalignme

4、nt of BSI and CEN publications datesMCE/3, Safeguarding of machinery.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct applic

5、ation.Compliance with a British Standard cannot confer immunity from legal obligations.National forewordThis British Standard is the UK implementation of EN 1093-6:1998+A1:2008. It supersedes BS EN 1093-6:1998 which is withdrawn.The start and finish of text introduced or altered by amendment is indi

6、cated in the text by tags. Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated by !“.The UK participation in its preparation was entrusted to Technical Committee EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 109

7、3-6:1998+A1 July 2008 ICS 13.040.40 Supersedes EN 1093-6:1998 English Version Safety of machinery - Evaluation of the emission of airborne hazardous substances - Part 6: Separation efficiency by mass, unducted outlet Scurit des machines - Evaluation de lmission de substances dangereuses vhicules par

8、 lair - Partie 6: Efficacit massique de sparation, sortie libre Sicherheit von Maschinen - Bewertung der Emission von luftgetragenen Gefahrstoffen - Teil 6: Masseabscheidegrad, diffuser Auslass This European Standard was approved by CEN on 4 September 1998 and includes Amendment 1 approved by CEN on

9、 8 June 2008. CEN 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

10、 obtained on application to the CEN Management Centre or to any CEN 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 member into its own language and notified to the CEN M

11、anagement Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands,

12、 Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in an

13、y form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1093-6:1998+A1:2008: ELicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 03/03/2009 01:41, Uncontrolled Copy, (c) BSIEN 1093-6:1998+A1:2008 (E) 2 Contents Page Foreword3 Introduction .4 1 Scope 4 2 Normative referen

14、ces 4 3 Definitions 5 4 Principle5 5 Description of the test rig .5 6 Position and operation of the air cleaning system 6 7 Procedure .7 8 Expression of results 7 9 Test report 8 Annex ZA (informative) !Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/

15、EC“.9 Annex ZB (informative) !Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC“.10 Bibliography 11 BS EN 1093-6:1998+A1:2008Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 03/03/2009 01:41, Uncontrolled Copy, (c) BSIEN 1093-6:1998+A1:2008 (

16、E) 3 Foreword This document (EN 1093-6:1998+A1:2008) has been prepared by Technical Committee CEN/TC 114 “Safety of machinery“, 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 endorseme

17、nt, at the latest by January 2009, and conflicting national standards shall be withdrawn at the latest by December 2009. This document includes Amendment 1, approved by CEN on 2008-06-08. This document supersedes EN 1093-6:1998. The start and finish of text introduced or altered by amendment is indi

18、cated in the text by tags ! “. This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). !For relationship with EU Directive(s), see informative Annexes ZA and ZB,

19、which are integral parts of this document.“ According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany

20、, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. BS EN 1093-6:1998+A1:2008Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 03/03/2009 01:41, Uncon

21、trolled Copy, (c) BSIEN 1093-6:1998+A1:2008 (E) 4 Introduction This European Standard is a type B standard as stated in ENV 1070: 1993. This European Standard is a part of EN 1093. Part 1 of this standard presents a selection of different methods for the evaluation of the emission of airborne hazard

22、ous substances from machines. 1 Scope This European Standard specifies a test rig method for the measurement of the separation efficiency by mass of air cleaning systems with unducted outlet, operating under defined conditions. The method shall apply to systems that clean air of aerosols (smoke, dus

23、t, fume, mist), vapour or gas. Measurement of the separation efficiency by mass of an air cleaning system for an intended use can serve for the: a) evaluation of the performance of an air cleaning system; b) evaluation of the improvement of the air cleaning system; c) comparison of air cleaning syst

24、ems; d) ranking of air cleaning systems according to their separation efficiency by mass; e) determination of the state of the art of air cleaning systems of the same intended use with respect to their separation efficiency by mass. 2 Normative references This European Standard incorporates by dated

25、 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 of these publications apply to this European Standard on

26、ly when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 292-1:1991, Safety of machinery - Basic concepts, general principles for design - Part 1: Basic terminology, methodology. EN 292-2:1991, Safety of machinery - Bas

27、ic concepts, general principles for design - Part 2: Technical principles and specifications. EN 292-2/A1:1995, Safety of machinery - Basic concepts, general principles for design - Part 2: Technical principles and specifications; Amendment A1. ENV 1070:1993, Safety of machinery Terminology. prEN 10

28、93-1, Safety of machinery - Evaluation of the emission of airborne hazardous substances - Part 1: Selection of test methods. BS EN 1093-6:1998+A1:2008Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 03/03/2009 01:41, Uncontrolled Copy, (c) BSIEN 1093-6:1998+A1:2008 (E) 5 3 Definitions For the

29、purposes of this European Standard the definitions of ENV 1070:1993 and the following definition applies: 3.1 separation efficiency by mass s the separation efficiency of an air cleaning system for a specified pollutant is the ratio of the mass of pollutant retained by the air cleaning system (m3) t

30、o the mass of pollutant entering the air cleaning system (m1) during a given period. The separation efficiency of an air cleaning system as a percentage is expressed as follows: 10013=mms (1) 4 Principle The principle of the measurement method is to operate the air cleaning system under defined cond

31、itions in a test rig and to determine the mass of the test substance in the air upstream and downstream of the air cleaning system. NOTE The test substance, which may be the real pollutant or a surrogate, should preferably be of low toxicity and compatible with the objectives of the method. 5 Descri

32、ption of the test rig The test rig consists of a cabin symmetrically connected to a measurement duct through which air is drawn (see figures 1 and 2). Figure 1 Test rig with secondary air inlet BS EN 1093-6:1998+A1:2008Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 03/03/2009 01:41, Uncontro

33、lled Copy, (c) BSIEN 1093-6:1998+A1:2008 (E) 6 Figure 2 Test rig without secondary air inlet 1 inlet duct 6 outlet duct 2 injection point(s) of test substance 7 measurement plane 2 3 measurement plane 1 8 air mover 4 cabin 9 air cleaning system under test 5 funnel 10 secondary air inlet For measurem

34、ent of the concentration in the inlet duct, an even distribution of the test substance shall be achieved. The air flow rate of the air cleaning system Q1, and the exhaust air flow rate, Q2, shall remain constant during the test within stated limits. The cross section of the cabin shall be chosen acc

35、ording to the requirements of the air cleaning system. 6 Position and operation of the air cleaning system To optimise the transport of any pollutant emitted from the air cleaning system to the measuring plane 2 in the outlet duct, the air cleaning system should normally be positioned in the cabin i

36、n such a way, that the emission from the air cleaning system is in the region of the vertical plane of the longitudinal axis of the outlet duct. Attention shall be given to the aerodynamic conditions in the cabin and duct to ensure that there is no significant deposition of pollutant between the air

37、 cleaning system and the measurement plane 2. The air cleaning system shall be operated according to its intended use and with a specified test substance. For given categories of air cleaning systems, properties of the test substances (e. g. nature, particle size distribution) and its upstream conce

38、ntration shall be defined in appropriate type C standards. The air cleaning system shall be operated in accordance with the manufacturers instructions for use. BS EN 1093-6:1998+A1:2008Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 03/03/2009 01:41, Uncontrolled Copy, (c) BSIEN 1093-6:1998+A

39、1:2008 (E) 7 7 Procedure The mass flow rate of the test substance shall be measured in the inlet duct from times t1to t2and in the outlet duct from times t1to t3. In the inlet duct this mass flow rate can be determined from the mass of test substance feed and the air flow rate. Time t3shall be later

40、 than time t2and shall take into account the time constants of air cleaning system, cabin and outlet duct. In practical terms the difference between times t2and t3may be very short in comparison with the measurement time and may have no effect on the measurement result. The measurement procedures us

41、ed shall comply with appropriate international or European standards. For the measurement of the air flow rate see ISO 3966:1977, ISO 4006:1991, ISO 4053-1:1977, ISO 5167-1:1991, ISO 5168:1978 and 7145:1982. The same type of instrument should be used upstream and downstream of the air cleaning syste

42、m. If this is not possible, the relationship between the two instruments shall be established for each test substance used. For certain applications it is useful to determine the separation efficiency according to particle size distribution (see EN 481). The separation efficiency of some air cleanin

43、g systems changes with time e. g. filters. The sampling procedure shall take into account these changing efficiencies in order to obtain valid information about the efficiency of the separator in use. The measurement time shall be of sufficient duration to collect samples of the substance emitted du

44、ring the representative use of the air cleaning system including e. g. several cycles of the operations of a filter cleaning mechanism. In general the separation efficiency of a system is dependent on the amount of retained pollutant and the air volume flow rate. Tests shall therefore be carried out

45、 with the various combinations of pollutant amounts and air flow rates which are expected in operation. Detailed test conditions and statistical analysis of the results shall be specified in appropriate type C standards. 8 Expression of results The mean value of the separation efficiency of an air c

46、leaning system is calculated according to the following formula: 10011001100112212132131=dtCQdtCQmmmmtttts (2) where: m1is the mass of the test substance entering the air cleaning system; m2is the mass of the test substance not retained by the air cleaning system; m3is the mass of the test substance

47、 retained by the air cleaning system; C1is the concentration of the test substance entering the air cleaning system; C2is the concentration of the test substance at the measurement plane 2; BS EN 1093-6:1998+A1:2008Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 03/03/2009 01:41, Uncontrolled

48、 Copy, (c) BSIEN 1093-6:1998+A1:2008 (E) 8 Q1is the air volume flow rate in the inlet duct; Q2is the air volume flow rate in the outlet duct. When the separation efficiency is required as a function of particle size distribution, m1and m2are measured for each particle size range of interest. 9 Test

49、report The test report shall include at least the following information: a) reference to this standard and appropriate type C standards; b) description of the air cleaning system tested (e. g. manufacturer, model, type, version, design, size, year of manufacture, serial number); c) operational data during tests including air flow rates; d) test substance, (e. g. nature, concentration; and for dusts: particle size distribution, moisture content); e) description of measurement procedures including type of test rig used; f) measuring