BS EN 14717-2005 Welding and allied processes - Environmental check list《焊接和相关工艺 环境检查表》.pdf

1、BRITISH STANDARD BS EN 14717:2005 Welding and allied processes Environmental check list The European Standard EN 14717:2005 has the status of a British Standard ICS 13.020.01; 25.160.01 BS EN 14717:2005 This British Standard was published under the authority of the Standards Policy and Strategy Comm

2、ittee on 28 April 2005 BSI 28 April 2005 ISBN 0 580 45981 0 National foreword This British Standard is the official English language version of EN 14717:2005. The UK participation in its preparation was entrusted to Technical Committee WEE/-/1, Briefing committee for welding, which has the responsib

3、ility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “Intern

4、ational Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a Bri

5、tish Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international a

6、nd European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 15 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued

7、 since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN14717 April2005 ICS13.020.01;25.160.01 Englishversion WeldingandalliedprocessesEnvironmentalchecklist SoudageettechniquesconnexesListedevrification relativelenvironnement SchweienundverwandteProzesseUmweltcheck

8、liste ThisEuropeanStandardwasapprovedbyCENon15March2005. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standard

9、smaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heoffici

10、al versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. E

11、UROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2005CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN14717:2005:EEN 14717:2005 (E) 2 Contents Page Foreword 3 In

12、troduction4 1 Scope .5 2 Normative references .5 3 Terms and definitions.5 4 Procedures 6 5 Check lists of possible environmental aspects7 Annex A (informative) Assessment and recommended actions.10 Annex B (informative) Requirements14 Bibliography.15 EN 14717:2005 (E) 3 Foreword This document (EN 1

13、4717:2005) has been prepared by 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 October 2005, and conflicting nat

14、ional standards shall be withdrawn at the latest by October 2005. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, Fra

15、nce, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 14717:2005 (E) 4 Introduction Protection of the environment is a key political issue in Europe an

16、d elsewhere. Protection of the environment is taken in a very broad sense. What is meant is the total life cycle aspects of, e.g. a product on the environment, including expenditure of energy and during all phases from mining of raw materials, fabrication, packaging, distribution, use, scrapping, re

17、cycling of materials, etc. However, assessment of all aspects of the welded product or structure during its entire lifetime cycle is beyond the scope of the present document. The document is limited to aspects directly related to welding fabrication. The design of the fabricated structures puts a lo

18、wer limit on the expenditure of energy during joint preparation and welding, on the consumption of consumables and consequently on emissions of fumes and gases during welding, etc. but the design phase is not covered by the document. Welding fabrication has many environmental aspects. This document

19、provides for a checklist, which may be used for identification of environmental aspects during welding fabrication. Provisions have to be restricted to a general guidance. Limit values are specified in national laws. Some of the environmental aspects also have an implication for occupational health

20、and safety, but the check list in this document is incomplete for this use. EN 14717:2005 (E) 5 1 Scope This document provides check lists for the assessment of the environmental aspects of welding fabrication of metallic materials including site and repair work. Informative annexes indicate recomme

21、nded actions for avoiding and reducing the possible environmental impacts outside the workshop. 2 Normative references Not applicable. 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 welding fabrication welding fabrication includes (for the p

22、urpose of this document) the following activities and associated processes: joint preparation including thermal cutting and grinding; surface preparation including sand blasting, shot blasting, shot peening, chemical pickling and cleaning; welding, including grinding and back gouging; soldering and

23、brazing; thermal spraying; preheating and heat treatments; flame straightening and mechanical straightening; inspection and testing of welds and thermal sprayed surfaces. 3.2 disposal collection, sorting, transport and treatment of waste as well as its storage and tipping above or under ground, the

24、transformation operations necessary for its re-use, recovery or recycling Directive 75/442/EEC 3.3 environment surroundings in which an organization operates, including air, water, land, natural resources, flora, fauna, humans and their interrelation EN ISO 14001:2004 3.4 environmental aspect elemen

25、t of an organizations activities or products or services that can interact with the environment EN ISO 14001:2004 EN 14717:2005 (E) 6 3.5 environmental impact any change to the environment, whether adverse or beneficial, wholly or partially resulting from an organizations environmental aspects EN IS

26、O 14001:2004 4 Procedures Requirements for the protection of the environment during welding fabrication can originate from a number of sources such as: legal requirements, often at the national level; commercial requirements (customer requirements); economical requirements, e.g. related to insurance

27、. Annex B provides further comments on the possible requirements. Absolute limits, e.g. emissions, can apply but protection of the environment is, as a general rule, a continuous process for which gradual improvements are aimed. The check lists in the document can be used as a tool for determination

28、 of possible problem areas. In general this applies to the following situations: when planning a fabrication, the application of new methods of fabrication or new equipment; for identification of procedures for monitoring or checks of actual environmental aspects; for specification of procedures for

29、 handling, storage and disposal of environmentally harmful substances. All check lists state possible environmental aspects. Many aspects can be identified during the planning stage as having no environmental impact. Others can be shown to be of no significance by monitoring or checking the producti

30、on processes. A few can result in further action to comply with the requirements. Annex A provides some general guidance for assessment and possible actions. EN 14717:2005 (E) 7 5 Check lists of possible environmental aspects Table 1 Common to welding fabrication Common to welding fabrication Consum

31、ables Check for: - Disposal of containers, packaging material, etc.; - Disposal of used consumables and waste materials. Equipment Check for: - Energy and fuel efficiency; - Generation of physical aspects, e.g. noise, heat and radiation; - Requirements for spare parts and consumables for maintenance

32、; - Procedures for disposal of the equipment. Work operation Check for: - Disposal of scrap; - Emission of fumes, gases and aerosols; - Energy and fuel consumption; - Fire hazards and explosion risks whenever there is a risk of ignition; - Generation of physical aspects, e.g. heat, light, noise, rad

33、iation. NOTE Several of the aspects listed above have a limited range of influence. It depends on the circumstances whether they represent an environmental aspect or not. Noise may e.g. not represent an environmental aspect when working in a large workshop but may be a serious problem when working o

34、n site or performing repair work in residential areas. EN 14717:2005 (E) 8 Table 2 Joint and surface preparation, weld dressing, surface treatment and cleaning Joint and surface preparation, weld dressing, surface treatment and cleaning Cleaning, pickling and other chemical treatment Check for: - Di

35、sposal of cleaning agents and other chemicals; Vapours; Leakage of consumables, cleaning agents, etc. from storage vessels representing a risk of contamination of soil, drains, watercourses or groundwater; Emission of hazardous substances in the air. Grinding and gouging Check for: Disposal of dust,

36、 used grinding wheels and other tools for grinding; Dust explosions; Emission of dust; a Noise. Sandblasting, shot blasting, shot peening, etc. Check for: Disposal of dust and used sand/shot; Emission of dust; a Noise. Thermal cutting Check for: Disposal of scrap, slag or mud; Emission of UV-/IR-rad

37、iation; Emission of dust; a Noise; Use of coolants; Emission of hazardous gases, e.g. nitrogen oxide (if relevant). a Un-controlled emission of dust (not least when working on site) may represent a risk of contamination of soil, drains, watercourses or groundwater, e.g. by heavy metals.Table 3 Weldi

38、ng, brazing and soldering Welding, brazing and soldering Welding, brazing and soldering Check for: Disposal of non-permanent backing; Disposal of slag, fluxes and powders; Emission of UV-/IR-radiation; Emission of fume, dust and gases; a Noise; Use of coolants. a Un-controlled emission of dust (not

39、least when working on site) may represent a risk of contamination of soil, drains, watercourses or groundwater, e.g. by heavy metals.EN 14717:2005 (E) 9 Table 4 Thermal spraying Thermal spraying Thermal spraying Check for: Emission of fume and dust; Disposal of dust; Noise; Pollution of water curtai

40、n; Radiation (arc processes). Table 5 Pre- and post heating and post weld heat treatment Pre- and post heating and post weld heat treatment Pre- and post heating and post weld heat treatment Check for: Disposal of insulating materials and other materials (in particular for temporary ovens); Use of c

41、oolants. Energy consumption (e.g. efficiency of insulation). Table 6 Inspection and testing Inspection and testing Inspection and testing Check for: Disposal of chemicals used for development of radiographs; Disposal of radiographs after use; Ionising radiation; Use and disposal of fluids and powder

42、s used for magnetic particle testing; Use and disposal of penetrant and cleaning materials; Cleaning/disposal of UT couplants. Table 7 Destructive testing Destructive testing Destructive testing Check for: Use and disposal of chemicals used for preparation of test pieces; Disposal of scrap and test

43、pieces after use; Environmental aspects related to sampling and preparation of test pieces. Table 2 may be used as a check list. EN 14717:2005 (E) 10 Annex A (informative) Assessment and recommended actions The table below gives some indications of the assessment of the environmental aspects and som

44、e suggestions for actions in case any adverse environmental impact has been identified. Table A.1 Assessment and recommended actions Environmental aspect Suggested assessment Recommended actions when adverse environmental impact has been identified Chemicals used for development of radiographs Devel

45、opment of radiographs includes the use of potentially harmful chemicals. Used chemicals should be neutralised before disposal or special arrangements for disposal should be established. Used fixing baths hold silver, which can be recycled. Use digital radiography, whenever possible. Cleaning agents

46、Cleaning fluids can include elements harmful to the environment. The environmental effects should be assessed for all cleaning agents, which evaporate significantly during use or storage. Water based cleaning fluids are usually less harmful than other cleaning agents. Some fluids can be cleaned by f

47、iltration or distillation and re-used. Substitute other cleaning agents by water based cleaning fluids, if possible. Other fluids have to be disposed, e.g. by burning (organic fluids). Cleaning fluids should preferably be limited to non-cyclic hydrocarbon, aqueous cleaning agents or equivalent non-h

48、alogenated or halogen-free organic degreasing agents. Coolants Some welding power sources, laser beam sources and other equipment incorporate a cooling system. Some systems use direct water-cooling. Other systems include a refrigerating unit and use either water or the ambient air for secondary cooling. Check systems for leaks. Check for environmental consequences of emission of heat to surroundings. Check for use of cooling water. Recycling of coolants and use of