DIN EN 1093-2-2008 Safety of machinery - Evaluation of the emission of airborne hazardous substances - Part 2 Tracer gas method for the measurement of the emission rate of a given .pdf

1、September 2008DEUTSCHE NORM English price group 10No part of this standard may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 13.040.40!$QtC“14681

2、32www.din.deDDIN EN 1093-2Safety of machinery Evaluation of the emission of airborne hazardous substances Part 2: Tracer gas method for the measurement of the emission rate of agiven pollutantEnglish version of DIN EN 1093-2:2008-09Sicherheit von Maschinen Bewertung der Emission von luftgetragenen G

3、efahrstoffen Teil 2: Tracergasverfahren zur Messung der Emissionsrate eines bestimmtenluftverunreinigenden StoffesEnglische Fassung DIN EN 1093-2:2008-09SupersedesDIN EN 1093-2:2007-03www.beuth.deDocument comprises 15 pages(includes Amendment A1:2008)(enthlt nderung A1:2008) DIN EN 1093-2:2008-09 2

4、Start of validity This standard takes effect on 1 September 2008. National foreword This standard includes safety requirements within the meaning of the Gerte- und Produktsicherheitsgesetz (GPSG) (German Equipment and Consumer Goods Safety Law) and in connection with European legislation (EC Machine

5、ry Directive), which has been implemented by national legislation. This standard has been prepared by Technical Committee CEN/TC 114 “Safety of Machinery” (Secretariat: DIN, Germany) in connection with the amended EC Machinery Directive. The responsible German body involved in its preparation was th

6、e Normenausschuss Sicherheitstechnische Grundstze (Safety Design Principles Standards Committee), Technical Committee NA 095-03-01 AA Mess-strategien und Anforderungen an Messverfahren, Working Group NA 095-03-01-02 AK Stoffemittierende Maschinen. This standard concretizes the basic requirements set

7、 out in Annex I of the EU Machinery Directive 98/37/EC (valid until 28 December 2009) and the new EU Machinery Directive 2006/42/EC which becomes applicable on 29 December 2009 relating to machinery to be placed on the EEA market, with the intent of simplifying the means of proving conformity with s

8、uch requirements. Once this standard is designated a harmonized standard in the Official Journal of the European Union, a manufacturer applying this standard may assume compliance with the requirements of the Machinery Directive (the so-called “presumption of conformity”). Amendments This standard d

9、iffers from DIN EN 1093-2:2007-03 as follows: a) Inclusion of Annex ZB (informative) “Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC”. Previous editions DIN EN 1093-2: 2007-03 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1093-2:2006+A1 J

10、une 2008 ICS 13.040.40 Supersedes EN 1093-2:2006 English Version Safety of machinery - Evaluation of the emission of airborne hazardous substances - Part 2: Tracer gas method for the measurement of the emission rate of a given pollutant Scurit des machines - Evaluation de lmission de substances dang

11、ereuses vhicules par lair - Partie 2: Mthode par traage pour lvaluation du dbit dmission dun polluant donn Sicherheit von Maschinen - Bewertung der Emission von luftgetragenen Gefahrstoffen - Teil 2: Tracergasverfahren zur Messung der Emissionsrate eines bestimmten luftverunreinigenden Stoffes This

12、European Standard was approved by CEN on 4 November 2006 and includes Amendment 1 approved by CEN on 18 May 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 a

13、lteration. Up-to-date lists and bibliographical references concerning such national standards may be 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

14、translation under the responsibility of a CEN member into its own language and notified to the CEN Management 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, G

15、ermany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORM

16、UNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1093-2:2006+A1:2008: EEN 1093-2:2006+A1:2008 (E) 2 Contents Page Foreword3 Introduction .4 1 Scope 5 2 Normative refere

17、nces 5 3 Terms and definitions .5 4 Principle5 5 Location of the machine .5 5.1 General5 5.2 Test room method5 5.3 Field method.6 6 Apparatus and materials.6 7 Measurement points7 8 Procedure .8 9 Data analysis8 10 Expression of results 9 11 Test report 10 Annex ZA (informative) Relationship between

18、 this European Standard and the Essential Requirements of EU Directive 98/37/EC 12 Annex ZB (informative) !Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC“.13 DIN EN 1093-2:2008-09 EN 1093-2:2006+A1:2008 (E) 3 Foreword This document (EN 1093-2:20

19、06+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 endorsement, at the latest by December 2008, and c

20、onflicting national standards shall be withdrawn at the latest by December 2008. This document includes Amendment 1, approved by CEN on 2008-05-18. This document supersedes EN 1093-2:2006. The start and finish of text introduced or altered by amendment is indicated in the text by tags ! “. This docu

21、ment 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, which are integral parts of this document.“ This

22、part 2 of EN 1093 Safety of machinery Evaluation of the emission of airborne hazardous substances belongs to a series of documents, the other parts of which are the following: Part 1: Selection of test methods; Part 3: Test bench method for the measurement of the emission rate of a given pollutant;

23、Part 4: Capture efficiency of an exhaust system Tracer method; Part 6: Separation efficiency by mass, unducted outlet; Part 7: Separation efficiency by mass, ducted outlet; Part 8: Pollutant concentration parameter, test bench method; Part 9: Pollutant concentration parameter, room method; Part 11:

24、Decontamination index. 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, Greece, Hungary, Ic

25、eland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. DIN EN 1093-2:2008-09 EN 1093-2:2006+A1:2008 (E) 4 Introduction This European Standard is a type B standard as stated in EN

26、ISO 12100-1. The provisions of this European Standard can be supplemented or modified by a type C standard. NOTE For machines which are covered by the scope of a type C standard and which have been designed and built according to the provisions of that standard, the provisions of that type C standar

27、d take precedence over the provisions of this type B standard. DIN EN 1093-2:2008-09 EN 1093-2:2006+A1:2008 (E) 5 1 Scope This European Standard specifies a method to enable measurements of the emission rates of gaseous substances from a single machine, whose operation can be controlled, using trace

28、r gas techniques. This European Standard is not applicable to machinery which is manufactured before the date of its publication as an EN. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited ap

29、plies. For undated references the latest edition of the referenced document (including any amendments) applies. EN 1093-1, Safety of machinery Evaluation of the emission of airborne hazardous substances Part 1: Selection of test methods. EN ISO 12100-1:2003, Safety of machinery Basic concepts, gener

30、al principles for design Part 1: Basic terminology, methodology (ISO 12100-1:2003). 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1093-1, EN ISO 12100-1:2003 and the following apply. 3.1 tracer gas technique use of gaseous substances with an aerodyn

31、amic behaviour comparable with the gaseous hazardous substance under consideration and for which concentrations can be reliably measured 4 Principle The principle is based on the use of a tracer gas generated at a known and constant emission rate to provide the best representation of the pollutant s

32、ource. The mean tracer gas and pollutant concentrations are measured in the vicinity of the source. Assuming that the aerodynamic behaviour of the pollutant is equal to that of the tracer gas, the pollutant emission rate can be determined. 5 Location of the machine 5.1 General The method is intended

33、 for use for a machine located either in a test room or in the field. 5.2 Test room method The general airflow patterns in the test room should be characterised to enable more precise control of the general and local ventilation to be achieved. The machine should be placed in the centre of the room.

34、 DIN EN 1093-2:2008-09 EN 1093-2:2006+A1:2008 (E) 6 5.3 Field method Many machines cannot be tested in a test room because they are too large, too difficult to handle or have special installation or process requirements. Tests may be performed on machines in the places where they are installed, i.e.

35、 the workplace. For this purpose, it shall be ensured that pollutants from other emission sources present in the room shall not affect the measurements of the concentrations of the specific pollutant emitted from the machine under test. 6 Apparatus and materials 6.1 Tracer gas emitter, capable of pr

36、oviding a release of the tracer gas in the same manner as the pollutant emission. The shape of the emitter should resemble the shape of the real pollutant source. A distinction is generally drawn between: point sources (e.g. welding operations, localised leaks from gaskets, flanges, localised sprayi

37、ng, such as painting jet); plane sources (e.g. open vessel or tank containing liquid or melted solid liable to evaporate or sublimate, such as galvanising baths, electroplating baths); volumetric sources (e.g. closed machine with distributed leaks, rubber making machine, printing machine, degreaser,

38、 dry cleaning machine, diffuse spraying, such as plant-care products in agriculture). Point sources should be simulated by opened tubes producing jets of variable aerodynamic characteristics or by sintered materials diffusing the tracer gas at a low initial velocity. Plane and volumetric sources sho

39、uld be simulated by a network of point sources or perforated tubes, which are suitably distributed. 6.2 Tracer gas flow rate measuring device, capable of measuring tracer gas flow rates in the appropriate range. NOTE The tracer gas flow rate depends on the sensitivity of the tracer gas analyser. For

40、 most applications a device calibrated to measure flow rates in the range from 1 l min-1to 10 l min-1is suitable. 6.3 Tracer gas flow rate adjusting device, e.g. a valve. 6.4 Gas analyser(s), preferably direct reading. An alternative method of measuring the pollutant concentration is to collect the

41、gas on vapour absorption tubes for later analysis, in the laboratory, using gas analyser(s). The gas analyser(s) should be selected to avoid any interference from any chemical substances present, other than the pollutant and tracer gas, in the test room or workplace where the machine under test is s

42、ituated. Calibrations shall be carried out according to European or International Standards. NOTE The choice of gas analyser depends upon the tracer gas and pollutant to be measured. Suitable analysers include infrared, electron capture, FID analysers, or mass spectrometer. Their performances should

43、 be checked before use. The analysers used should not be susceptible to change in environmental conditions such as temperature and relative humidity. 6.5 Connecting piping, for connection of the sampled tracer gas and pollutant gas to the analysers. The piping length should be as short as possible a

44、nd the material chosen to limit adsorption on the piping walls e.g. PTFE. If the machine is located in a dirty workplace atmosphere particle filters should be fitted. For adsorption tubes the piping length upstream should be shorter. 6.6 Tracer gas; it shall be selected in accordance with the follow

45、ing criteria: DIN EN 1093-2:2008-09 EN 1093-2:2006+A1:2008 (E) 7 a) nil or very low toxicity; b) chemical stability at the intended process temperature; c) easily measurable at low concentrations; d) non-interference with pollutants present in the room; e) low background level. The tracer gas chosen

46、 should have a relative density close to 1. The tracer gas can be mixed with an appropriate gas. NOTE The choice of the tracer gas and associated analyser depends, in particular, on the desired accuracy, the measurement range and the cost. The gases normally used are helium, sulphur hexafluoride and

47、 nitrous oxide. 7 Measurement points There should be at least three measurement points around the machine (see Figure 1). These should be positioned close to the machine, e.g. between 1 m and 3 m and at the height where the pollutant is generated. At each measurement point both tracer gas and pollut

48、ant concentrations are measured. The measurement points should be determined by pre-testing to ensure that they are in zones of measurable emission. Key 1 to 4 measurement points 5 pollutant source 6 mixing fan Figure 1 Example of the location of four measurement points in a test room DIN EN 1093-2:

49、2008-09 EN 1093-2:2006+A1:2008 (E) 8 8 Procedure 8.1 Prepare the machine in accordance with the manufacturers instructions. 8.2 Position the tracer gas emitter as close to the source of the pollutant from the machine as possible so that the tracer gas will be mixed with the pollutant before emission into the atmosphere. 8.3 Ensure that the air exhausted from the room is not re-circulated. 8.4 Switch on the gas analysers and allow to stabilize according to the instructions for use. 8.5 Connect the cylinder of tracer gas to