EN ISO 2398-2008 838 Rubber hoses textile-reinforced for compressed air - Specification《压缩空气用纺织物增强橡胶软管 规范》.pdf

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1、BS EN ISO2398:2008ICS 23.040.70NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDRubber hoses, textile-reinforced, forcompressed air Specification (ISO2398:2006)Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo

2、 reproduction or networking permitted without license from IHS-,-,-This British Standard was published under theauthority of the StandardsPolicy and StrategyCommittee on 28 2009 BSI 2009ISBN 978 0 580 57638 6Amendments/corrigenda issued since publicationDate CommentsBS EN ISO 2398:2008National forew

3、ordThis British Standard is the UK implementation of EN ISO 2398:2008. Itis identical to ISO 2398:2006. It supersedes BS EN ISO 2398:1997 whichis withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PRI/66, Rubber and plastics tubing, hoses and hoseassemblies.A list

4、of organizations represented on this committee can be obtained onrequest to its 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 obli

5、gations.February Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 2398November 2008ICS 23.040.70 Supersedes EN ISO 2398:1997

6、English VersionRubber hoses, textile-reinforced, for compressed air -Specification (ISO 2398:2006)Tuyaux en caoutchouc renforcs textile pour lair comprim- Spcifications (ISO 2398:2006)This European Standard was approved by CEN on 29 October 2008.CEN members are bound to comply with the CEN/CENELEC I

7、nternal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN me

8、mber.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members

9、 are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switz

10、erland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN I

11、SO 2398:2008: ECopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 2398:2008EN ISO 2398:2008 (E) 3 Foreword The text of ISO 2398:2006 has been prepared by Technical Committ

12、ee ISO/TC 45 “Rubber and rubber products” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 2398:2008 by Technical Committee CEN/TC 218 “Rubber and plastics hoses and hose assemblies” the secretariat of which is held by BSI. This European Standard shall be

13、 given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2009, and conflicting national standards shall be withdrawn at the latest by May 2009. Attention is drawn to the possibility that some of the elements of this document may be

14、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 2398:1997. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to imp

15、lement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerlan

16、d and the United Kingdom. Endorsement notice The text of ISO 2398:2006 has been approved by CEN as a EN ISO 2398:2008 without any modification. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license

17、 from IHS-,-,-BS EN ISO 2398:2008ISO 2398:2006(E) ISO 2006 All rights reserved iiiContents Page Foreword iv 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 2 4 Classification. 2 5 Materials and construction 2 6 Dimensions 2 6.1 Internal diameters and tolerances 2 6.2 Concentricity .

18、3 6.3 Tolerance on length 3 6.4 Minimum thickness of lining and cover . 4 7 Physical properties. 4 7.1 Rubber compounds 4 7.2 Finished hose 5 8 Marking 5 Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted witho

19、ut license from IHS-,-,-BS EN ISO 2398:2008ISO 2398:2006(E) iv ISO 2006 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried o

20、ut 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 organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO c

21、ollaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International

22、 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 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elemen

23、ts 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 2398 was prepared by Technical Committee ISO/TC 45, Rubber and rubber products, Subcommittee SC 1, Hoses (rubber and plastics). This fifth edition cancels and

24、 replaces the fourth edition (ISO 2398:1995), which has been technically revised. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 2398:2008INTERNATIONAL STANDARD ISO 23

25、98:2006(E) ISO 2006 All rights reserved 1Rubber hoses, textile-reinforced, for compressed air Specification WARNING Persons using this International Standard should be familiar with normal laboratory practice. This standard does not purport to address all of the safety problems, if any, associated w

26、ith its use. It is the responsibility of the user to establish appropriate health and safety practices and to ensure compliance with any national regulatory conditions. 1 Scope This International Standard specifies the requirements for three types, three classes and two categories of textile-reinfor

27、ced rubber hose for compressed air, up to a maximum working pressure of 25 bar1)with an operating-temperature range of 40 C to + 70 C, depending on the type and category. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated refer

28、ences, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 37, Rubber, vulcanized or thermoplastic Determination of tensile stress-strain properties ISO 188, Rubber, vulcanized or thermoplastic Accelerated agei

29、ng and heat resistance tests ISO 1307, Rubber and plastics hoses Hose sizes, minimum and maximum inside diameters and tolerances on cut lengths ISO 1402, Rubber and plastics hoses and hose assemblies Hydrostatic testing ISO 1746:1998, Rubber or plastics hoses and tubing Bending tests ISO 1817, Rubbe

30、r, vulcanized Determination of the effects of liquids ISO 4671, Rubber and plastics hoses and hose assemblies Methods of measurement of dimensions ISO 4672:1997, Rubber and plastics hoses Sub-ambient temperature flexibility tests ISO 7326:1991, Rubber and plastics hoses Assessment of ozone resistanc

31、e under static conditions ISO 8033, Rubber and plastics hoses Determination of adhesion between components ISO 8330, Rubber and plastics hoses and hose assemblies Vocabulary 1) 1 bar = 0,1 MPaCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo repr

32、oduction or networking permitted without license from IHS-,-,-BS EN ISO 2398:2008ISO 2398:2006(E) 2 ISO 2006 All rights reserved3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 8330 apply. 4 Classification Hoses are designated as one of the following

33、types, depending on their pressure rating: Type 1: Low pressure Designed for a maximum working pressure of 10 bar Type 2: Medium pressure Designed for a maximum working pressure of 16 bar Type 3: High pressure Designed for a maximum working pressure of 25 bar These types can be sub-divided into thre

34、e classes depending on their oil resistance: Class A Non-oil-resistant Class B Nominal oil resistance Class C Good oil resistance The types and classes above can also be further sub-divided into two categories, depending on their operating-temperature range: Category N-T (Normal Temperature) 25 C to

35、 + 70 C Category L-T (Low Temperature) 40 C to + 70 C 5 Materials and construction The hose shall consist of: a rubber lining; a reinforcement of natural or synthetic textile, applied by any suitable technique; a rubber cover. The lining and cover shall be of uniform thickness, concentric to comply

36、with the minimum thickness specified, and free from holes, porosity and other defects. The cover finish may be smooth or fabric-marked. 6 Dimensions 6.1 Internal diameters and tolerances When measured in accordance with ISO 4671 the internal diameters and their tolerances shall conform to the values

37、 specified in Table 1. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 2398:2008ISO 2398:2006(E) ISO 2006 All rights reserved 3Table 1 Minimum and maximum internal diam

38、eters Hose size Minimum internal diameter mm Maximum internal diameter mm 4 3,25 4,75 5 4,25 5,75 6,3 5,55 7,05 8 7,25 8,75 10 9,25 10,75 12,5 11,75 13,25 16 15,25 16,75 19 18,25 19,75 20 19,25 20,75 25 23,75 26,25 31,5 30,25 32,75 38 36,50 39,50 40 38,50 41,50 51 49,50 52,50 63 61,50 64,50 76 74,50

39、 77,50 80 78,00 82,00 100 98,00 102,00 102 100,00 104,006.2 Concentricity When determined in accordance with ISO 4671, the concentricity, based on a total indicator reading between the internal diameter and the outside surface of the cover, shall be no greater than 1,0 mm for hoses of internal diame

40、ter up to and including 76 mm, and no greater than 1,5 mm for hoses of inside diameter greater than 76 mm. 6.3 Tolerance on length The tolerance on cut lengths shall be as specified in ISO 1307, the length being measured in accordance with ISO 4671. Copyright European Committee for Standardization P

41、rovided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 2398:2008ISO 2398:2006(E) 4 ISO 2006 All rights reserved6.4 Minimum thickness of lining and cover When measured in accordance with ISO 4671, the minimum thickness of the

42、lining and cover shall be as follows: Type 1 lining 1,0 mm cover 1,5 mm Type 2 lining 1,5 mm cover 2,0 mm Type 3 lining 2,0 mm cover 2,5 mm 7 Physical properties 7.1 Rubber compounds When determined by the methods listed in Table 2, the physical properties of the compounds used for the lining and co

43、ver shall conform to the values specified in Table 2. Tests shall be carried out either on samples taken from the hose or from separately vulcanized sheets, 2 mm in thickness and vulcanized to the same cure state as the production hoses. Table 2 Physical properties of rubber compounds Requirement Pr

44、operty Lining Cover Test method Minimum tensile strength 7,0 MPa 7,0 MPa ISO 37 (dumb-bell test piece) Minimum elongation at break 250 % 250 % ISO 37 (dumb-bell test piece) Resistance to ageing Change in tensile strength from original value (max.) 25 % 25 % Change in elongation at break from origina

45、l value (max.) 50 % 50 % ISO 188 (3 days at 100 C 1 C), air-oven method ISO 37 (dumb-bell test piece) Resistance to liquids Increase in volume (class A) N/A N/A Increase in volume (max.) (class B only) 115 % No shrinkage allowed N/A ISO 1817 (72 h at 70 C 2 C in oil No. 3), gravimetric method Increa

46、se in volume (max.) (class C only) 30 % No shrinkage allowed 75 % No shrinkage allowed ISO 1817 (72 h at 70 C 2 C in oil No. 3), gravimetric method Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without lic

47、ense from IHS-,-,-BS EN ISO 2398:2008ISO 2398:2006(E) ISO 2006 All rights reserved 57.2 Finished hose When determined by the methods listed in Table 3, the physical properties of the finished hose shall conform to the values specified in Table 3. Table 3 Physical properties of finished hose Property

48、 Requirement Test method Proof pressure 20 bar (type 1) 32 bar (type 2) 50 bar (type 3) ISO 1402 Change in length at maximum working pressure 5 % ISO 1402 Change in diameter at maximum working pressure 5 % ISO 1402 Minimum burst pressure 40 bar (type 1) 64 bar (type 2) 100 bar (type 3) ISO 1402 Adhesion between components 2,0 kN/m (min.) ISO 8033 Ozone resistance No cracking observed under 2 magnification ISO 7326:1991 method 1 (up to 25 mm id) method 2 or 3 for other size