1、August 2013 Translation by DIN-Sprachendienst.English price group 12No part of this translation 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
2、 13.040.40; 25.160.01!%($I“2050138www.din.deDDIN EN ISO 15012-1Health and safety in welding and allied processes Equipment for capture and separation of welding fume Part 1: Requirements for testing and marking of separation efficiency(ISO 15012-1:2013);English version EN ISO 15012-1:2013,English tr
3、anslation of DIN EN ISO 15012-1:2013-08Arbeits- und Gesundheitsschutz beim Schweien und bei verwandten Prozessen Einrichtungen zum Erfassen und Abscheiden von Schweirauch Teil 1: Anforderungen an den Abscheidegrad sowie Prfung und Kennzeichnung desAbscheidegrades (ISO 15012-1:2013);Englische Fassung
4、 EN ISO 15012-1:2013,Englische bersetzung von DIN EN ISO 15012-1:2013-08Hygine et scurit en soudage et techniques connexes quipements de captage et de filtration des fumes de soudage Partie 1: Exigences pour les essais et marquage relatifs lefficacit de la sparation(ISO 15012-1:2013);Version anglais
5、e EN ISO 15012-1:2013,Traduction anglaise de DIN EN ISO 15012-1:2013-08SupersedesDIN EN ISO 15012-1:2005-03www.beuth.deDocument comprises 22 pagesIn case of doubt, the German-language original shall be considered authoritative.07.13 DIN EN ISO 15012-1:2013-08 2 A comma is used as the decimal marker.
6、 National foreword This document (EN ISO 15012-1:2013) has been prepared by Technical Committee CEN/TC 121 “Welding” (Secretariat: DIN, Germany) in collaboration with Technical Committee ISO/TC 44 “Welding and allied processes”. The responsible German body involved in its preparation was the Normena
7、usschuss Schweien und verwandte Verfahren (Welding and allied processes Standards Committee), Working Committee NA 092-00-09 AA Arbeits- und Gesundheitsschutz beim Schweien und verwandte Verfahren. Any enquiries relating to interpretation of the content of this International Standard should be addre
8、ssed to the users national standards organization, which will pass them on to the secretariat of ISO/TC 44/SC 9. A full list of national standards organizations is available from www.iso.org. The DIN Standards corresponding to the International Standards referred to in this document are as follows:
9、ISO 5167 (all parts) DIN EN ISO 5167 (all parts) ISO 5801 DIN EN ISO 5801 ISO 7731 DIN EN ISO 7731 ISO 12100 DIN EN ISO 12100-2 ISO 14341 DIN EN ISO 14341 ISO 15011-1 DIN EN ISO 15011-1 ISO 15767 DIN ISO 15767 Amendments This standard differs from DIN EN ISO 15012-1:2005-03 as follows: a) the title
10、of the standard has been modified; b) requirements for welding fume exhaust equipment that has no direct impact on the separation efficiency have been deleted; c) the test procedure has been revised; d) the standard has been editorially revised. Previous editions DIN EN ISO 15012-1: 2005-03 DIN EN I
11、SO 15012-1:2013-08 3 National Annex NA (informative) Bibliography DIN EN ISO 5167 (all parts), Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full DIN EN ISO 5801, Industrial fans Performance testing using standardized airways
12、DIN EN ISO 7731, Ergonomics Danger signals for public and work areas Auditory danger signals DIN EN ISO 12100:2010, Safety of machinery General principles for design Risk assessment and risk reduction DIN EN ISO 14341, Welding consumables Wire electrodes and weld deposits for gas shielded metal arc
13、welding of non alloy and fine grain steels Classification DIN EN ISO 15011-1, Health and safety in welding and allied processes Laboratory method for sampling fume and gases Part 1: Determination of fume emission rate during arc welding and collection of fume for analysis DIN ISO 15767, Workplace at
14、mospheres Controlling and characterizing uncertainty in weighing collected aerosols DIN EN ISO 15012-1:2013-08 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 15012-1 April 2013 ICS 25.160.30 Supersedes EN ISO 15012-1:2004English Version Health and safety
15、in welding and allied processes - Equipment for capture and separation of welding fume - Part 1: Requirements for testing and marking of separation efficiency (ISO 15012-1:2013) Hygine et scurit en soudage et techniques connexes - quipements de captage et de filtration des fumes de soudage - Partie
16、1: Exigences pour les essais et marquage relatifs lefficacit de la sparation (ISO 15012-1:2013) Arbeits- und Gesundheitsschutz beim Schweien und bei verwandten Prozessen - Einrichtungen zum Erfassen und Abscheiden von Schweirauch - Teil 1: Anforderungen an den Abscheidegrad sowie Prfung und Kennzeic
17、hnung des Abscheidegrades (ISO 15012-1:2013) This European Standard was approved by CEN on 1 March 2013. 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
18、. 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 member. This European Standard exists in three official versions (English, French, German). A version in any other language made by t
19、ranslation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Fi
20、nland, 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 STANDARDIZA
21、TION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 15012-1:2013: EEN ISO 15012-1:2013 (E) Contents Page F
22、oreword 3 Introduction .4 1 Scope 5 2 Normative references 5 3 Terms and definitions .5 4 Requirement .6 5 Principle 6 6 Equipment 6 7 Test method 9 7.1 Selection of test arrangement 9 7.2 Test conditions 9 7.3 Procedure .9 7.4 Calculation of the separation efficiency 13 8 Accuracy of measurement 13
23、 9 Marking .13 Annex A (normative) Label for welding fume separation equipment 14 Annex B (informative) Welding fume source 15 Annex C (informative) Test cabin 17 Bibliography 18 2DIN EN ISO 15012-1:2013-08 EN ISO 15012-1:2013 (E) Foreword This European Standard shall be given the status of a nation
24、al standard, either by publication of an identical text or by endorsement, at the latest by October 2013, and conflicting national standards shall be withdrawn at the latest by October 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
25、 rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 15012-1:2004. EN ISO 15012 consists of the following parts, under the general title Health and safety in welding and allied processes Equipment for capture and sep
26、aration of welding fume: Part 1: Requirements for and testing and marking of separation efficiency Part 2: Determination of the minimum air volume flow rate of captor hoods and nozzles The following part is under preparation: Part 4: Design requirements According to the CEN-CENELEC Internal Regulati
27、ons, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy
28、, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 15012-1:2013 has been approved by CEN as EN ISO 15012-1:2013 without any modification. 3DIN EN ISO
29、 15012-1:2013-08 This document (EN ISO 15012-1:2013) has been prepared by Technical Committee CEN/TC 121 “Welding” the secretariat of which is held by DIN, in collaboration with Technical Committee ISO/TC 44 “Welding and allied processes”. IntroductionIt is common practice in the fabrication industr
30、y to control exposure to welding fume using local exhaust ventilation equipment that, following capture and separation of the fume, returns the extracted air to the workplace or exhausts it to the atmosphere. It is important that such equipment has high separation efficiency so that as little fume a
31、s possible is recirculated or exhausted. This part of ISO 15012 has therefore been promulgated to specify requirements and a test method for determining the efficiency of welding fume separation equipment.EN ISO 15012-1:2013 (E) 4DIN EN ISO 15012-1:2013-08 1 ScopeThis part of ISO 15012 specifies a m
32、ethod for testing equipment for the separation of welding fume in order to determine whether its separation efficiency meets specified requirements.The method specified does not apply to testing of filter cartridges independent of the equipment in which they are intended to be used.This part of ISO
33、15012 applies to equipment that is manufactured after its publication.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced do
34、cument (including any amendments) applies.ISO 2602, Statistical interpretation of test results Estimation of the mean Confidence intervalISO 15011-1, Health and safety in welding and allied processes Laboratory method for sampling fume and gases Part 1: Determination of fume emission rate during arc
35、 welding and collection of fume for analysis3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1local exhaust ventilationLEVuse of extraction to remove contaminated air at or near to its source3.2welding fume separation equipmentair filtration equip
36、ment, the purpose of which is to separate particles generated by welding and allied processes from workplace air3.3filter cleaning systemsystem designed to clean the filter of welding fume separation equipment in order to restore the air flow rate through the filter when it is reduced by an accumula
37、tion of welding fume particlesEN ISO 15012-1:2013 (E) 5DIN EN ISO 15012-1:2013-08 3.4separation efficiency by massratio of the mass of particles retained by welding fume separation equipment to the mass of particles entering the equipment during a given periodNote 1 to entry: See also EN 1093-610and
38、 EN 1093-7.113.5emission ratemass of the particles emitted by the welding fume source per timeNote 1 to entry: Emission rate is expressed in milligrams per second.Note 2 to entry: See Annex B.3.6free-standing unitseparation equipment with an integrated fan3.7modular systemseparation equipment consis
39、ting of a filter box, or multiple filter boxes, connected to a single fan4 RequirementWhen tested in accordance with the procedure described in Clause 7, welding fume separation equipment shall have a lower confidence limit value of separation efficiency 99 %.5 PrincipleThe method is based on the me
40、thods specified in EN 1093-610and EN 1093-7.11The welding fume separation equipment under test is operated under defined conditions, according to its intended use.The emission rate of a welding fume source is measured and used subsequently to calculate the concentration of fume generated during a te
41、st period when separation efficiency is measured.Before separation efficiency measurements are made, welding fume is generated using the welding fume source and separated for a period of 30 min.For equipment with filters that are not intended to be cleaned, the concentration of fume passing through
42、the separation equipment during a 30 min period is measured and used together with the fume concentration calculated from the fume emission rate to determine the separation efficiency.For equipment with cleanable filters, an additional separation efficiency measurement is performed after a further w
43、elding period without measurement and filter cleaning. The average of the two separation efficiencies is calculated.Two tests are performed and the average, the 95 % one-sided confidence interval and the lower confidence limit value of the separation efficiency are calculated according to ISO 2602.
44、If the resulting lower confidence limit value is less than the required separation efficiency, consideration shall be given to performing further tests.6 Equipment6.1 Welding fume source, capable of maintaining an emission rate of 10 mg/s 2 mg/s throughout the test period. The welding fume source sh
45、all be fitted with an extracted fume hood that retains all the fume emitted and shall be designed in such a way that it can be connected to the inlet duct of the test cabin, as described in Figure 1, or directly to welding fume separation equipment with a ducted outlet, as described EN ISO 15012-1:2
46、013 (E) 6DIN EN ISO 15012-1:2013-08 in Figure 2. It shall be possible to determine the welding fume emission rate in situ without disturbing the welding set-up in any way. An example of a suitable welding source and parameters required to achieve the required welding fume emission rate are described
47、 in Annex B.6.2 Test cabin, consisting of an enclosure for the welding fume separation equipment under test, connected to the welding fume source via an upstream measurement duct. The cabin is connected to a downstream measurement duct and an air mover (see Figure 1). The air flow rate through the a
48、ir mover is adjusted to between 95 % and 100 % of the air flow rate in the upstream duct, thus ensuring a small positive air pressure in the cabin.Key1 welding fume source (see Figure B.1)2 welding fume separation equipment3 test cabin with funnel shaped outlet4 air mover5 position for measuring the air flow rate in the upstream duct, qV, 16 positions for measuring the air flow rate in the downstream duct, qV, 2and isokinetic sampling of welding fume in the downstream duct7 da
