BS EN ISO 9539-2010 Gas welding equipment - Materials for equipment used in gas welding cutting and allied processes《气焊设备 用于气体焊接、切割和相关工艺过程设备的材料》.pdf

1、BS EN ISO9539:2010ICS 25.160.20; 25.160.30NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDGas welding equipment Materials forequipment used in gaswelding, cutting andallied processes (ISO9539:2010)Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 08/06/2010

2、 01:58, Uncontrolled Copy, (c) BSIThis British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 28 February2010. BSI 2010ISBN 978 0 580 59441 0Amendments/corrigenda issued since publicationDate CommentsBS EN ISO 9539:2010National forewordThis British Standard

3、is the UK implementation of EN ISO 9539:2010. Itsupersedes BS EN 29539:1992 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee WEE/18, Gas welding and cutting appliances.A list of organizations represented on this committee can be obtained onrequest to its

4、 secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 08/06/2010 01:58

5、, Uncontrolled Copy, (c) BSIEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 9539 January 2010 ICS 25.160.20 Supersedes EN 29539:1992English Version Gas welding equipment - Materials for equipment used in gas welding, cutting and allied processes (ISO 9539:2010) Matriel de soudage aux gaz -

6、Matriaux utiliss pour le matriel de soudage aux gaz, coupage et techniques connexes (ISO 9539:2010) Gasschweigerte - Werkstoffe fr Gerte fr Einrichtungen zum Gasschweien, Schneiden und verwandte Prozesse (ISO 9539:2010) This European Standard was approved by CEN on 9 January 2010. CEN members are bo

7、und 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 obtained on application to the

8、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 Management Centre has the same st

9、atus 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, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portug

10、al, 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 2010 CEN All rights of exploitation in any form and by any means r

11、eserved worldwide for CEN national Members. Ref. No. EN ISO 9539:2010: ELicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 08/06/2010 01:58, Uncontrolled Copy, (c) BSIBS EN ISO 9539:2010EN ISO 9539:2010 (E) 3 Foreword This document (EN ISO 9539:2010) has been prepared by Technical Committee ISO/

12、TC 44 “Welding and allied processes“ 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 July 2

13、010, and conflicting national standards shall be withdrawn at the latest by July 2010. 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.

14、 This document supersedes EN 29539:1992. 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, G

15、ermany, Greece, Hungary, 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 9539:2010 has been approved by CEN as a EN ISO 9539:2010 w

16、ithout any modification. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 08/06/2010 01:58, Uncontrolled Copy, (c) BSIBS EN ISO 9539:2010ISO 9539:2010(E) ISO 2010 All rights reserved iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national stan

17、dards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International org

18、anizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given

19、 in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75

20、 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 9539 was prepared by Technical Committee ISO/TC 44, Weldi

21、ng and allied processes, Subcommittee SC 8, Equipment for gas welding, cutting and allied processes. This second edition cancels and replaces the first edition (ISO 9539:1988) which has been technically revised. Requests for official interpretations of any aspect of this International Standard shoul

22、d be directed to the Secretariat of ISO/TC 44/SC 8 via your national standards body, a complete listing of which can be found at http:/www.iso.org. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 08/06/2010 01:58, Uncontrolled Copy, (c) BSIBS EN ISO 9539:2010Licensed Copy: Wang Bin, ISO/EXCHA

23、NGE CHINA STANDARDS, 08/06/2010 01:58, Uncontrolled Copy, (c) BSIBS EN ISO 9539:2010INTERNATIONAL STANDARD ISO 9539:2010(E) ISO 2010 All rights reserved 1Gas welding equipment Materials for equipment used in gas welding, cutting and allied processes 1 Scope This International Standard specifies the

24、general, and some of the special, requirements on materials used for the construction of equipment used in gas welding, cutting and allied processes. Additional requirements on materials for some equipment are given in other standards. This International Standard is not applicable to materials used

25、for the construction of welding hoses which are specified in ISO 3821. 2 Normative references The 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

26、document (including any amendments) applies. ISO 554, Standard atmospheres for conditioning and/or testing Specifications ISO 1817, Rubber, vulcanized Determination of the effect of liquids 3 General requirements Materials liable to come into contact with the process gases shall be resistant to the

27、chemical, mechanical and thermal action of these gases under all operating conditions (see for example ISO 11114-1 and ISO 11114-2). The properties of the materials shall be such that the function for which they are intended can be performed correctly within the temperature range of 20 C to +60 C. W

28、here dissimilar materials are in direct contact, steps shall be taken to prevent corrosion. 4 Specific requirements 4.1 Metallic materials 4.1.1 For use with acetylene and gases with similar chemical properties Because of the risk of forming explosive acetylides, the copper content of materials liab

29、le to come into contact with such gases shall not exceed 70 % (mass fraction). The manufacturer shall not use any procedure resulting in copper enrichment of the surface. Nozzles and necks of blowpipes are an exception to this requirement. NOTE International and national regulations may require diff

30、erent maximum copper contents than those specified here, but these remain generally within this range. The likelihood of the formation of copper acetylides depends on metallic corrosion and contamination which can be caused by many factors, e.g. moisture. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA

31、STANDARDS, 08/06/2010 01:58, Uncontrolled Copy, (c) BSIBS EN ISO 9539:2010ISO 9539:2010(E) 2 ISO 2010 All rights reservedMetal flame-arresting elements (including sintered metal elements) shall be manufactured from copper-free materials. Where brazing alloys containing silver and copper are used, th

32、e silver content shall not exceed 46 % (mass fraction) and the copper content shall not exceed 37 % (mass fraction). The brazing connection shall be designed and completed in such a way that, as far as practicable, the area where acetylene is liable to come into contact with the brazing alloy will b

33、e small and all residues of flux will be removed. 4.1.2 For use with oxygen Metallic materials for components intended to be used with oxygen shall be selected according to their resistance to ignition and the release of ignition energy. NOTE 1 Materials that burn in air will burn violently in pure

34、oxygen, and many materials that do not burn in air will do so in pure oxygen, particularly under pressure. Similarly, materials that can be ignited in air require less energy to ignite in oxygen. Many such materials can be ignited by friction at a valve seat or stem packing or by adiabatic compressi

35、on produced when oxygen at high pressure is rapidly introduced into a system initially at low pressure. Aluminium or aluminium alloys shall not be used for components whose surfaces come into contact with oxygen at a working pressure greater than 30 bar, except aluminium sealing washers for pressure

36、 gauges. Materials for filters whose surfaces come into contact with gas at cylinder pressure shall be non-inflammable under the conditions of use. The selection of the material of the filter is particularly important to reduce the probability of ignition. Springs and other moving parts liable to co

37、me into contact with oxygen shall be made of materials that resist oxidation and they shall not be coated. NOTE 2 Plating could come off. All components in contact with oxygen shall be subjected to appropriate cleaning procedures so that their surfaces do not exceed the following hydrocarbon contami

38、nation levels: a) for applications in the pressure range of 50 kPa to 3 000 kPa: no greater than 550 mg/m2; b) for applications at a pressure greater than 3 000 kPa: no greater than 220 mg/m2and no particles of size 100 m. These requirements shall be met by using either an appropriate method of manu

39、facture or an appropriate cleaning procedure. Compliance shall be checked either by verification of the cleanliness of the components or by validation of the cleaning procedure or the manufacturing process. NOTE 3 ISO 15001 provides guidance on suitable cleaning procedures. 4.2 Non-metallic material

40、s 4.2.1 Resistance to solvents for non-metallic materials in contact with fuel gases Non-metallic materials (e.g. those used for seals and lubricants) liable to come into contact with acetylene shall be adequately resistant to the solvents acetone and dimethylformamide (DMF). Non-metallic materials

41、(e.g. those used for seals and lubricants) liable to come into contact with propane, butane and methylacetylene-propadiene mixtures shall be adequately resistant to n-pentane. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 08/06/2010 01:58, Uncontrolled Copy, (c) BSIBS EN ISO 9539:2010ISO 95

42、39:2010(E) ISO 2010 All rights reserved 3For the purposes of this International Standard, the term “adequate resistance” (to solvents) will be taken to mean that the material shall fulfil the following conditions. a) The change in mass (resistance to swelling) shall not exceed 15 % and the change in

43、 hardness shall not exceed 15 IRHD after the material has been stored under the following conditions: (168 2) h (i.e. 7 d) in an atmosphere saturated with solvent vapour (acetone and DMF) or in liquid (n-pentane) at (23 2) C. b) A subsequent period in air for (70 2) h at (40 2) C. c) (24 2) h at sta

44、ndard atmosphere 23/50 as specified in ISO 554. These tests shall be carried out in accordance with ISO 1817. 4.2.2 Resistance to oxygen 4.2.2.1 Resistance to ignition Ignition resistance in oxygen of non-metallic materials and lubricants shall have been established by an appropriate test procedure.

45、 NOTE This test is described in several standards, e.g. ISO 11114-3. 4.2.2.2 Resistance to ageing Non-metallic sealing materials for use with air and oxygen shall be capable of withstanding an ageing sensitivity test (e.g. ISO 2440). 4.2.2.3 Cleanliness and lubricants All components in contact with

46、oxygen shall be free from substances that may react violently with oxygen under normal operating conditions, e.g. hydrocarbon-based solvents, oils, greases and detergents. Only lubricants suitable for use in oxygen at maximum operating pressure and temperature shall be used. Licensed Copy: Wang Bin,

47、 ISO/EXCHANGE CHINA STANDARDS, 08/06/2010 01:58, Uncontrolled Copy, (c) BSIBS EN ISO 9539:2010ISO 9539:2010(E) 4 ISO 2010 All rights reservedBibliography 1 ISO 2440, Flexible and rigid cellular polymeric materials Accelerated ageing tests 2 ISO 3821, Gas welding equipment Rubber hoses for welding, c

48、utting and allied processes 3 ISO 11114-1, Transportable gas cylinders Compatibility of cylinder and valve materials with gas contents Part 1: Metallic materials 4 ISO 11114-2, Transportable gas cylinders Compatibility of cylinder and valve materials with gas contents Part 2: Non-metallic materials

49、5 ISO 11114-3, Transportable gas cylinders Compatibility of cylinder and valve materials with gas contents Part 3: Autogenous ignition test in oxygen atmosphere 6 ISO 15001, Anaesthetic and respiratory equipment Compatibility with oxygen Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 08/06/2010 01:58, Uncontrolled Copy, (c) BSIBS EN ISO 9539:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 08/06/2010 01:58, Uncontrolled Copy, (c) BSIBS EN ISO9539:2010BSI GroupHeadquarters 389Chiswic