DIN EN ISO 11114-2-2013 Gas cylinders - Compatibility of cylinder and valve materials with gas contents - Part 2 Non-metallic materials (ISO 11114-2 2013) German version EN ISO 111.pdf

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1、July 2013 Translation by DIN-Sprachendienst.English price group 13No 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

2、3.020.30; 23.060.40!%|“2029989www.din.deDDIN EN ISO 11114-2Gas cylinders Compatibility of cylinder and valve materials with gas contents Part 2: Non-metallic materials (ISO 11114-2:2013);English version EN ISO 11114-2:2013,English translation of DIN EN ISO 11114-2:2013-07Gasflaschen Vertrglichkeit v

3、on Flaschen- und Ventilwerkstoffen mit den in Berhrung kommendenGasen Teil 2: Nichtmetallische Werkstoffe (ISO 11114-2:2013);Englische Fassung EN ISO 11114-2:2013,Englische bersetzung von DIN EN ISO 11114-2:2013-07Bouteilles gaz Compatibilit des matriaux des bouteilles et des robinets avec les conte

4、nus gazeux Partie 2: Matriaux non mtalliques (ISO 11114-2:2013);Version anglaise EN ISO 11114-2:2013,Traduction anglaise de DIN EN ISO 11114-2:2013-07SupersedesDIN EN ISO 11114-2:2001-03www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritati

5、ve.2207.13 DIN EN ISO 11114-2:2013-07 2 A comma is used as the decimal marker. National foreword This document (EN ISO 11114-2:2013) has been prepared by Technical Committee ISO/TC 58 “Gas cylinders” in collaboration with Technical Committee CEN/TC 23 “Transportable gas cylinders” (Secretariat: BSI,

6、 United Kingdom). The responsible German body involved in its preparation was the Normenausschuss Druckgasanlagen (Pressurized Gas Installations Standards Committee), Working Committee NA 016-00-03 AA Druckgas-flaschen und Ausrstung. The DIN Standards corresponding to the International Standards ref

7、erred to in this document are as follows: ISO 1817 DIN ISO 1817 ISO 9539 DIN EN ISO 9539 ISO 10156 DIN EN ISO 10156 ISO 10297 DIN EN ISO 10297 ISO 11114-1 DIN EN ISO 11114-1 ISO 11114-3 DIN EN ISO 11114-3 ISO 15001 DIN EN ISO 15001 Amendments This standard differs from DIN EN ISO 11114-2:2001-03 as

8、follows: a) the title of the standard has been modified; b) Annex A has been deleted; c) Clause 2 “Normative references” has been updated; d) compatibility data for solid lubricants (MoS2) have been added; e) compatibility data for further plastics (PEEK, PPS, PVC) have been added; f) compatibility

9、data for further elastomers (ACR, MFQ, PUR) have been added; g) in Subclause 7.1, general information relating to the evaluation of the material compatibility has been added; h) Table 1 “Compatibility of non-metallic materials with gases” has been updated; i) the standard has been editorially revise

10、d. Previous editions DIN EN ISO 11114-2: 2001-03 DIN EN ISO 11114-2:2013-07 3 National Annex NA (informative) Bibliography processes DIN EN ISO 10156, Gases and gas mixtures Determination of fire potential and oxidizing ability for the selection of cylinder valve outlets DIN EN ISO 11114-1, Gas cyli

11、nders Compatibility of cylinder and valve materials with gas contents Part 1: Metallic materials DIN EN ISO 11114-3, Gas cylinders Compatibility of cylinder and valve materials with gas contents Part 3: Autogenous ignition test for non-metallic materials in oxygen atmosphere DIN EN ISO 10297, Transp

12、ortable gas cylinders Cylinder valves Specification and type testing DIN EN ISO 15001, Anaesthetic and respiratory equipment Compatibility with oxygen DIN ISO 1817, Rubber, vulcanized Determination of the effect of liquids DIN EN ISO 9539, Gas welding equipment Materials for equipment used in gas we

13、lding, cutting and allied DIN EN ISO 11114-2:2013-07 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 11114-2 April 2013 ICS 23.020.30 Supersedes EN ISO 11114-2:2000English Version Gas cylinders - Compatibility of cylinder and valve materials with gas conte

14、nts - Part 2: Non-metallic materials (ISO 11114-2:2013) Bouteilles gaz - Compatibilit des matriaux des bouteilles et des robinets avec les contenus gazeux - Partie 2: Matriaux non mtalliques (ISO 11114-2:2013) Gasflaschen - Vertrglichkeit von Flaschen- und Ventilwerkstoffen mit den in Berhrung komme

15、nden Gasen - Teil 2: Nichtmetallische Werkstoffe (ISO 11114-2:2013) This European Standard was approved by CEN on 9 February 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 stand

16、ard without any alteration. 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 an

17、y other language made by translation 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 Repu

18、blic, Denmark, Estonia, Finland, 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

19、 COMMITTEE FOR STANDARDIZATION 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 11114-2:2013: EContents Page

20、 Foreword 3 Introduction .4 1 Scope 5 2 Normative references 5 3 Terms and definitions .5 4 Materials .6 4.1 General 6 4.2 Types of material .6 5 General considerations .7 6 Specific considerations 8 6.1 General 8 6.2 Non-compatibility risks .8 6.2.1 Violent reaction (oxidation/burning) (F) 8 6.2.2

21、Weight loss (W) 9 6.2.3 Swelling of material (S) .10 6.2.4 Change in mechanical properties (M) 10 6.2.5 Other compatibility considerations .10 7 Compatibility data 11 7.1 Table of compatibility 11 7.2 Symbols and abbreviations 12 7.2.1 Symbols for compatibility .12 7.2.2 Abbreviations for materials

22、12 7.2.3 Abbreviations for non-compatibility risks 13 7.2.4 Examples 13 Bibliography 18 DIN EN ISO 11114-2:2013-07 EN ISO 11114-2:2013 (E) 2 Foreword This document (EN ISO 11114-2:2013) has been prepared by Technical Committee ISO/TC 58 “Gas cylinders” in collaboration with Technical Committee CEN/T

23、C 23 “Transportable gas cylinders” the secretariat of which is held by BSI. 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 2013, and conflicting national standards shall be withdrawn at t

24、he latest by October 2013. 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 EN ISO 11114-2:2000. According to

25、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, Former Yugoslav Republic of Macedonia, France, Germany, Greece,

26、 Hungary, Iceland, Ireland, Italy, 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 11114-2:2013 has been approved by CEN as EN ISO 11114-2:2013 with

27、out any modification. DIN EN ISO 11114-2:2013-07 EN ISO 11114-2:2013 (E) 3 Introduction This part of ISO 11114 deals with the compatibility of non-metallic materials used for gas cylinders and gas cylinder valves with the gas contents of the cylinder. Compatibility of metallic materials is treated i

28、n ISO 11114-1. Non-metallic materials are very often used for the construction of gas cylinder valves as seals, e.g. o-ring, gland packing, seats, or as lubrication products to avoid friction. They are also commonly used to ensure sealing of the valve/cylinder connection. For gas cylinders, they are

29、 sometimes used as an internal coating or as a liner for composite materials. Non-metallic materials not in contact with the gas are not covered by this part of ISO 11114. This part of ISO 11114 is based on current international experience and knowledge. Some data are derived from experience involvi

30、ng a mixture of the gas concerned with a dilutant, where no data for single component gases were available. This part of ISO 11114 has been written to be in conformity with the UN Recommendations on the Transport of Dangerous Goods: Model Regulations. When published it will be submitted to the UN Su

31、b Committee of Experts on the Transport of Dangerous Goods with a request that it be included in the Model Regulations. Where there is any conflict between this part of ISO 11114 and any applicable regulation, the regulation always takes precedence. DIN EN ISO 11114-2:2013-07 EN ISO 11114-2:2013 (E)

32、 4 1 Scope This part of ISO 11114 gives guidance in the selection and evaluation of compatibility between non-metallic materials for gas cylinders and valves and the gas contents. It also covers bundles, tubes and pressure drums. This part of ISO 11114 can be helpful for composite and laminated mate

33、rials used for gas cylinders. It does not cover the subject completely and is intended to give guidance only in evaluating the compatibility of gas/material combinations. Only the influence of the gas in changing the material and mechanical properties is considered (for example chemical reaction or

34、change in physical state). The basic properties of the materials, such as mechanical properties, required for design purposes are normally available from the materials supplier and are not considered in this part of ISO 11114. The compatibility data given are related to single component gases but ca

35、n be used to some extent for gas mixtures. Ceramics, glasses, and adhesives are not covered by this part of ISO 11114. Other aspects such as quality of delivered gas are not considered. This part of ISO 11114 is not intended to be used for cryogenic fluids (see ISO 21010). 2 Normative references The

36、 following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 11114-

37、3, Transportable gas cylinders Compatibility of cylinder and valve materials with gas contents Part 3: Autogenous ignition test for non-metallic materials in oxygen atmosphere ISO 10297, Gas cylinders Refillable gas cylinder valves Specification and type testing ISO 15001, Anaesthetic and respirator

38、y equipment Compatibility with oxygen 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. DIN EN ISO 11114-2:2013-07 EN ISO 11114-2:2013 (E) 5 3.1 competent person person who has the necessary technical knowledge, qualification, experience and author

39、ity to assess and approve materials for use with gases and to define any special conditions of use that are necessary 3.2 acceptable material/gas combination that is satisfactory under normal conditions of use (as defined in Clause 5), provided that any indicated non-compatibility risks, as given in

40、 Table 1, are taken into account 3.3 not acceptable material/single gas combination that is not safe under normal conditions of use (as defined in Clause 5) NOTE For gas mixtures special conditions can apply. 3.4 dynamic sealing where in normal operation the non-metallic material is used to provide

41、a pressure seal between two surfaces that have relative motion to each other 3.5 static sealing where in normal operation the non-metallic material is used to provide a pressure seal between two surfaces that have not relative motion to each other 4 Materials 4.1 General Non-metallic materials shall

42、 be suitable for the intended service. They are suitable if their compatibility is stated as acceptable in Table 1, or the necessary properties have been proved by tests or long and safe experience to the satisfaction of a competent person. If coated materials are used the suitability of the combina

43、tion shall be assessed and approved if all technical aspects have been considered and validated by a competent person. These technical aspects include but are not limited to compatibility of the coating material with the intended gas, durability of the coating during all its intended use and gas per

44、meability through it. 4.2 Types of material The most commonly used non-metallic materials for gas cylinders and cylinder valves can be grouped as follows: plastics; elastomers; fluid lubricants. NOTE Solid lubricants are sometimes used, e.g. MoS2. Materials considered in this part of ISO 11114 are a

45、s follows: a) Plastics: Polytetrafluoroethylene (PTFE); DIN EN ISO 11114-2:2013-07 EN ISO 11114-2:2013 (E) 6 Polychlorotrifluoroethylene (PCTFE); Polyvinylidenefluoride (PVDF); Polyamide (PA); Polypropylene (PP); Polyetheretherketone (PEEK); Polypropylene sulphide (PPS); Polyvinyl chloride (PVC) Pol

46、yimide (PI); Polyoxymethylene (POM). b) Elastomers: Butyl rubber (IIR); Nitrile rubber (NBR); Chloroprene rubber (CR); Fluorocarbon rubber (FKM); Methyl-vinyl-silicone rubber (VMQ); Ethylene propylene diene monomer (EPDM); Polyacrylate rubber (ACM); Polyurethane rubber (PUR); Methyl-fluoro-silicone

47、rubber (FVMQ). c) Fluid lubricants: Hydrocarbon (HC); Fluorocarbon (FC). 5 General considerations It is important to note that these materials are generic types. Within each material type there are variations in the properties of the materials due to polymer differences and formulations used by manu

48、facturers to modify physical and chemical properties of the material. The user of the material should therefore consult the manufacturer and if necessary carry out tests before using the material (for example for critical services such as oxygen and other oxidizing gases). Lubricants are often used in valves to reduce friction and wear in the moving parts. For valves used for oxidizing gases or for gases supporting combustion, if lubrication is required,