DIN EN ISO 15011-5-2012 Health and safety in welding and allied processes - Laboratory method for sampling fume and gases - Part 5 Identification of thermal-degradation products ge.pdf

1、January 2012 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).IC

2、S 13.040.30; 25.160.10!$y-U“1861050www.din.deDDIN EN ISO 15011-5Health and safety in welding and allied processes Laboratory method for sampling fume and gases Part 5: Identification of thermal-degradation products generated whenwelding or cutting through products composed wholly or partly oforganic

3、 materials using pyrolysis-gas chromatography-massspectrometry (ISO 15011-5:2011)English translation of DIN EN ISO 15011-5:2012-01Arbeits- und Gesundheitsschutz beim Schweien und bei verwandten Verfahren Laborverfahren zum Sammeln von Rauch und Gasen Teil 5: Identifizierung von thermischen Zersetzun

4、gsprodukten erzeugt beim Schweienoder Schneiden von ganz oder teilweise aus organischen Materialien bestehendenProdukten mittels der Pyrolyse-Gaschromatographie-Massenspektrometrie(ISO 15011-5:2011)Englische bersetzung von DIN EN ISO 15011-5:2012-01Hygine et scurit en soudage et techniques connexes

5、Mthode de laboratoire dchantillonnage des fumes et des gaz Partie 5: Identification des produits de dgradation thermique gnrs lors du soudage oudu coupage de produits entirement ou partiellement constitus de matriaux organiques,par pyrolyse-chromatographie en phase gazeuse-spectromtrie de masse(ISO

6、15011-5:2011)Traduction anglaise de DIN EN ISO 15011-5:2012-01SupersedesDIN ISO/TS 15011-5:2006-06www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.2201.12 DIN EN ISO 15011-5:2012-01 2 A comma is used as the decimal marker. National

7、foreword This standard has been prepared by Technical Committee ISO/TC 44 “Welding and allied processes“, Subcommittee SC 9 “Health and safety” in collaboration with Technical Committee CEN/TC 121 “Welding”, Subcommittee SC 9 “Health and safety in welding and allied processes” (Secretariat: DIN, Ger

8、many), The responsible German body involved in its preparation was the Normenausschuss 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. The DIN Standards corres

9、ponding to the International Standards referred to in this document are as follows: ISO 15011-1 DIN EN ISO 15011-1 ISO 15011-2 DIN EN ISO 15011-2 ISO 16000-6 DIN ISO 16000-6 DIN EN ISO 15011, Health and safety in welding and allied processes Laboratory method for sampling fume and gases consists of

10、the following parts: Part 1: Determination of fume emission rate during arc welding and collection of fume for analysis Part 2: Determination of the emission rates of carbon monoxide (CO), carbon dioxide (CO2), nitrogen monoxide (NO) and nitrogen dioxide (NO2) during arc welding, cutting and gouging

11、 Part 3: Determination of ozone emission rate during arc welding Part 4: Fume data sheets Part 5: Identification of thermal-degradation products generated when welding or cutting through products composed wholly or partly of organic materials using pyrolysis-gas chromatography-mass spectrometry Amen

12、dments This standard differs from DIN ISO/TS 15011-5:2006-06 as follows: a) the standard has been adopted as an International Standard; b) the title has been changed; c) in Clause 3 “Terms and definitions”, “3.3 shop primer”, “3.4 thin organic coating” and “3.7 weld-through oil” have been included a

13、nd the former “3.3 welding primer” has been deleted; d) Clause 5 “Procedure” has been shortened; e) Annexes A, B, C, D, E and G have been revised and a number of figures have been added; f) Annex F “Examples of suitable test conditions for arc welding” has been deleted; g) resistance welding has bee

14、n deleted from Annex B. Previous editions DIN ISO/TS 15011-5: 2006-06 DIN EN ISO 15011-5:2012-01 3 National Annex NA (informative) Bibliography DIN EN ISO 15011-1, Health and safety in welding and allied processes Laboratory method for sampling fume and gases generated by arc welding Part 1: Determi

15、nation of emission rate and sampling for analysis of particulate fume DIN EN ISO 15011-2, Health and safety in welding and allied processes Laboratory method for sampling fume and gases generated by arc welding Part 2: Determination of emission rates of gases, except ozone DIN ISO 16000-6, Indoor ai

16、r Part 6: Determination of volatile organic compounds in indoor and test chamber air by active sampling on Tenax TA sorbent, thermal desorption and gas chromatography using MS/FID DIN EN ISO 15011-5:2012-01 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 1

17、5011-5 October 2011 ICS 25.160.10; 13.100 Supersedes CEN ISO/TS 15011-5:2006English Version Health and safety in welding and allied processes - Laboratory method for sampling fume and gases - Part 5: Identification of thermal-degradation products generated when welding or cutting through products co

18、mposed wholly or partly of organic materials using pyrolysis-gas chromatography-mass spectrometry (ISO 15011-5:2011) Hygine et scurit en soudage et techniques connexes - Mthode de laboratoire dchantillonnage des fumes et des gaz - Partie 5: Identification des produits de dgradation thermique gnrs lo

19、rs du soudage ou du coupage de produits entirement ou partiellement constitus de matriaux organiques, par pyrolyse-chromatographie en phase gazeuse-spectromtrie de masse (ISO 15011-5:2011) Arbeits- und Gesundheitsschutz beim Schweien und bei verwandten Verfahren - Laborverfahren zum Sammeln von Rauc

20、h und Gasen - Teil 5: Identifizierung von thermischen Zersetzungsprodukten erzeugt beim Schweien oder Schneiden von ganz oder teilweise aus organischen Materialen bestehenden Produkten mittels der Pyrolyse-Gaschromatographie-Massenspektrometrie (ISO 15011-5:2011) This European Standard was approved

21、by CEN on 30 September 2011. 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 s

22、tandards 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 translation under the responsibility of a CEN member into its own language an

23、d 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, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Li

24、thuania, 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 NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 201

25、1 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 15011-5:2011: EContents Page Foreword 3 Introduction .4 1 Scope 5 2 Normative references 5 DIN EN ISO 15011-5:2012-01 EN ISO 15011-5:2011 (E) 2 3 Terms and definitions .5 4 Prin

26、ciple 6 5 Procedure .7 5.1 Identification of thermal degradation products 7 5.2 Data analysis 7 6 Use of data on thermal degradation products 7 7 Test report 7 Annex A (normative) Test procedure 8 Annex B (informative) Pyrolysers . 10 Annex C (informative) Chromatographic conditions 12 Annex D (info

27、rmative) System and performance checks . 13 Annex E (informative) Example of a test report 15 Annex F (informative) Use of data on thermal degradation products 17 Bibliography . 18 Foreword This document (EN ISO 15011-5:2011) has been prepared by Technical Committee ISO/TC 44 “Welding and allied pro

28、cesses” in collaboration with Technical Committee CEN/TC 121 “Welding”, 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 April 2012, and conflicting nationa

29、l standards shall be withdrawn at the latest by April 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes C

30、EN ISO/TS 15011-5:2006. 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, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, H

31、ungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 15011-5:2011 has been approved by CEN as a EN ISO 15011-5:2011 without any

32、modification. DIN EN ISO 15011-5:2012-01 EN ISO 15011-5:2011 (E) 3 IntroductionWelding and allied processes generate fume and gases, which, if inhaled, can be harmful to human health. Knowledge of the composition and the emission rate of the fume and gases can be useful to occupational hygienists in

33、 assessing worker exposure and in determining appropriate control measures.ISO 15011-11and ISO 15011-22have been promulgated primarily to generate emission rate data when welding uncoated metals. However, it is now common practice in the welding industry to weld or cut through a variety of coatings

34、that are composed wholly or partly of organic materials. These coatings include shop primers, paints, oils, waxes and inter-weld materials such as adhesives and sealants. When heated, these coatings give rise to a wide range of thermal degradation products, the composition of which depends upon the

35、temperatures to which the coatings are subjected. During welding and cutting activities, the coating material is subjected to a range of temperatures due to the existence of temperature profiles within the material being processed.The purpose of this part of ISO 15011 is to describe procedures that

36、can be used to identify and make semi-quantitative measurements of the organic components generated when welding and cutting, preheating and straightening metal treated with the coatings mentioned above, with a view to identifying those components that are significant hygienically. The data generate

37、d can be used to provide information on degradation products for use on safety data sheets. If desired, the degradation products identified in these tests can then be measured quantitatively using existing standards for making workplace exposure measurements.Comparative testing of various weld-throu

38、gh coatings has been carried out using laboratory based heating tests, pyrolysis, and different welding techniques345. From the results of these tests, it was decided that pyrolysis should be adopted as the basis for the testing procedure6prescribed in this part of ISO 15011. This was based on the f

39、ollowing observations and conclusions: pyrolysis successfully identifies most of the hygienically significant components; despite the fact that pyrolysis tests are carried out in an atmosphere of helium, results are very comparable with those obtained in air by thermal decomposition in a furnace; th

40、e cost of pyrolysis testing is significantly lower than the cost of welding tests; pyrolysis test results show good interlaboratory consistency; it is easier to define standard conditions for pyrolysis tests than for welding tests; and in order to reduce the sampling regime required, any welding tes

41、t programme would, in all likelihood, need to incorporate some pre-testing in the laboratory, probably using pyrolysis.DIN EN ISO 15011-5:2012-01 EN ISO 15011-5:2011 (E) 4 1 ScopeThis part of ISO 15011 specifies procedures for obtaining information about thermal degradation products generated when w

42、elding, cutting through, preheating and straightening metal treated with coatings composed wholly or partly of organic substances, e.g. shop primers, paints, oils, waxes and inter-weld materials such as adhesives and sealants. It is aimed primarily at test laboratories performing such procedures. Th

43、e data generated can be used by coating manufacturers to provide information for inclusion in safety data sheets and by occupational hygienists to identify thermal degradation products of significance in the performance of risk assessments and/or workplace exposure measurements. The data cannot be u

44、sed to estimate workplace exposure directly.This part of ISO 15011 is applicable to all coatings composed partly or wholly of organic materials that can be heated during welding and cutting, preheating and straightening to temperatures at which thermal degradation products are generated and where it

45、 is not apparent what those degradation products are.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 document (including

46、 any amendments) applies.ISO 16000-6, Indoor air Part 6: Determination of volatile organic compounds in indoor and test chamber air by active sampling on Tenax TA sorbent, thermal desorption and gas chromatography using MS/FID3 Terms and definitionsFor the purposes of this document, the following te

47、rms and definitions apply.3.1chemical agentany chemical element or compound, on its own or admixed, as it occurs in the natural state or as produced, used or released, including release as waste, by any work activity, whether or not produced intentionally and whether or not placed on the marketCounc

48、il Directive 98/24/EC7, Art. 2(a)DIN EN ISO 15011-5:2012-01 EN ISO 15011-5:2011 (E) 5 3.2occupational exposure limit valuelimit of the time-weighted average of the concentration of a chemical agent in the air within the breathing zone of a worker in relation to a specified reference periodCouncil Directive 98/24/EC7, Art. 2(d)NOTE Limit values are mostly set for reference periods of 8 h, but can also be set for shorter periods or concentration excursions. Limi