1、BSI Standards PublicationBS ISO 27126:2014Thermoplastic multi-layer (non-vulcanized) hoses and hoseassemblies for the transfer ofhydrocarbons, solvents andchemicals SpecificationBS ISO 27126:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 27126:2014.The UK
2、 participation in its preparation was entrusted to TechnicalCommittee PRI/66, Rubber and plastics tubing, hoses and hoseassemblies.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions
3、 of a contract. Users are responsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 79192 5ICS 83.140.40Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under
4、 the authority of theStandards Policy and Strategy Committee on 30 September 2014.Amendments issued since publicationDate Text affectedBS ISO 27126:2014 ISO 2014Thermoplastic multi-layer (non-vulcanized) hoses and hose assemblies for the transfer of hydrocarbons, solvents and chemicals Specification
5、Tuyaux et flexibles multicouches (non vulcaniss) thermoplastiques pour le transfert des hydrocarbures, des solvants et des produits chimiques SpcificationsINTERNATIONAL STANDARDISO27126First edition2014-09-15Reference numberISO 27126:2014(E)BS ISO 27126:2014ISO 27126:2014(E)ii ISO 2014 All rights re
6、servedCOPYRIGHT PROTECTED DOCUMENT ISO 2014All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior writ
7、ten permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 27
8、126:2014ISO 27126:2014(E) ISO 2014 All rights reserved iiiContents PageForeword iv1 Scope . 12 Normative references 13 Terms and definitions . 24 Classification 25 Materials and construction . 25.1 General . 25.2 Internal and external wire 36 Dimensions . 36.1 Inside diameters, with tolerances and m
9、inimum bend radii 36.2 Tolerance on length . 47 Performance requirements of hoses and hose assemblies 47.1 Cover 47.2 Hoses . 47.3 End fittings . 57.4 Hose assemblies . 57.5 Electrical continuity . 68 Test frequency . 69 Type tests . 610 Marking 710.1 Hose marking . 710.2 Hose assembly marking 7Anne
10、x A (informative) Resistance to chemical(s) conveyed 8Annex B (normative) Carbon steel wire 9Annex C (normative) Galvanized zinc coating .11Annex D (normative) Method of test for crush recovery 12Annex E (normative) Method of test for fuel resistance 14Annex F (normative) Method of test for thermal
11、ageing 15Annex G (normative) Method of test flammability .16Annex H (normative) Sequence of hydrostatic tests .18Annex I (normative) Method of test for fitting security.19Annex J (normative) Method of test for leak tightness .20Annex K (normative) Type and routine tests for hoses and hose assemblies
12、 21Annex L (informative) Batch tests for hoses and hose assemblies.22Bibliography .23BS ISO 27126:2014ISO 27126:2014(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Stan
13、dards 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 organizations, governmental and non-governmental, in liaison with ISO, also t
14、ake part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In p
15、articular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements o
16、f this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see
17、 www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to
18、 the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information.The committee responsible for this document is ISO/TC 45, Rubber and rubber products, Subcommittee SC 1, Rubber and plastics hoses and hose assemblies.ISO 27126 is based on EN 137
19、65:2010 with the following modifications to comply with the requirements of ISO/TC 45/SC 1: the pressure unit “bar” has been replaced by “MPa (bar)”; all references to EN or EN/ISO standards have been replaced by references to ISO standards wherever possible; references in Clause 2 have been amended
20、; Table 2 has been amended (tolerance for ID 150 only, the other tolerances are already sufficient to accommodate the required changes of ID to include inch size mandrels); Table 3 now requires the change in length and twist to be measured at maximum working pressure instead of proof pressure and An
21、nex H has been amended accordingly; in Table 4, the reference to the test method clause, to determine electrical resistance between fittings according to ISO 8031 has been corrected; Annex G has been amended in order to describe the method of detection of failure after completion of test; in Clause
22、10, the marking has been amended according ISO/TC45/SC1 remarks.iv ISO 2014 All rights reservedBS ISO 27126:2014INTERNATIONAL STANDARD ISO 27126:2014(E)Thermoplastic multi-layer (non-vulcanized) hoses and hose assemblies for the transfer of hydrocarbons, solvents and chemicals SpecificationWARNING P
23、ersons using this document should be familiar with normal laboratory practice. This document does not purport to address all the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate health and safety practices and to ensure compliance with a
24、ny national regulatory conditions.1 ScopeThis International Standard specifies requirements for four types of thermoplastic multi-layer (non-vulcanized) hoses and hose assemblies for carrying hydrocarbons, solvents and chemicals. It specifies bore sizes from 25 mm to 300 mm, working pressures from 0
25、,4 MPa (4 bar) to 1,4 MPa (14 bar) and working temperatures from 30 C to 150 C, according to type.Type 1 hoses are suitable for vapour applications. Types 2 to 4 hoses are suitable for liquid applications.NOTE 1 See Annex A concerning the selection of the material for the inner wall of layers and an
26、y polymeric coating of the internal wire helix related to the chemical(s) to be conveyed by the hoses and/or hose assemblies.NOTE 2 It is intended that the manufacturer be consulted where a polymeric coated internal wire is being considered for use with low conductivity hydrocarbons or chemicals.Thi
27、s International Standard does not apply to hoses and hose assemblies for: aircraft refuelling see (ISO 1825); fuel dispensing see (ISO 5772); oil burners see (ISO 6806); liquefied petroleum gas and liquefied natural gas see (ISO 27127); fire fighting see (ISO 14557); offshore liquefied natural gas s
28、ee (EN 14742); refrigeration circuits.2 Normative referencesThe 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 ref
29、erenced document (including any amendments) applies.ISO 209, Aluminium and aluminium alloys Chemical compositionISO 1043-1, Plastics Symbols and abbreviated terms Part 1: Basic polymers and their special characteristicsISO 1402:2009, Rubber and plastics hoses and hose assemblies Hydrostatic testingI
30、SO 1817, Rubber, vulcanized or thermoplastic Determination of the effect of liquids ISO 2014 All rights reserved 1BS ISO 27126:2014ISO 27126:2014(E)ISO 2411, Rubber- or plastics-coated fabrics Determination of coating adhesionISO 4671, Rubber and plastics hoses and hose assemblies Methods of measure
31、ment of the dimensions of hoses and the lengths of hose assembliesISO 7233:2006, Rubber and plastics hoses and hose assemblies Determination of resistance to vacuumISO 7326:2006, Rubber and plastics hoses Assessment of ozone resistance under static conditionsISO 8031:2009, Rubber and plastics hoses
32、and hose assemblies Determination of electrical resistance and conductivityISO 8330, Rubber and plastics hoses and hose assemblies VocabularyISO 10619-1, Rubber and plastics hoses and tubing Measurement of flexibility and stiffness Part 1: Bending tests at ambient temperatureISO 10619-2, Rubber and
33、plastics hoses and tubing Measurement of flexibility and stiffness Part 2: Bending tests at sub-ambient temperaturesISO 16143-3:2005, Stainless steels for general purposes Part 3: WireEN 590, Automotive fuels Diesel Requirements and test methodsEN 10088-3:2005, Stainless steels Part 3: Technical del
34、ivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 8330 apply.4 ClassificationHoses shall be classified accordin
35、g to working pressure and working temperature range as given in Table 1.Table 1 Pressure and temperature rangeType 1 Type 2 Type 3 Type 4MPa Bar MPa Bar MPa Bar MPa BarMaximum working pressure 0,4 4 1,0 10 1,4 14 1,4 14Proof pressure 0,6 6 1,5 15 2,1 21 2,1 21Minimum burst pressure 1,6 16 4 40 5,6 5
36、6 5,6 56Vacuum rating 0,05 0,5 0,09 0,9 0,09 0,9 0,09 0,9Working temperature range (C) 20 to +60 30 to +80 30 to + 80 30 to +150NOTE 1 bar = 0,1 MPa.5 Materials and construction5.1 GeneralHoses shall be constructed as shown in Figure 1 and shall consist of the following: an internal wire helix (see
37、5.2);2 ISO 2014 All rights reservedBS ISO 27126:2014ISO 27126:2014(E) a multi-ply wall of layers of films and fabrics made of thermoplastics that in combination give the required properties and provide a complete seal (see also Annex A); a cover consisting of a fabric with abrasion resistant polymer
38、ic coating; an external wire helix (see 5.2).5.2 Internal and external wireWire shall be chosen in accordance with its chemical resistance from one of the following materials: austenitic stainless steel wire conforming to EN 10088-3, Table 4, numbers 1.4436 (X3CrNiMo 17-13-3) or ISO 16143-3:2005, Ta
39、ble 1: X2CrNi 19-11, X5CrNiMo 17-12-2, X2CrNiMo 17-12-2; carbon steel wire conforming to Annex B and either galvanised in accordance with Annex C or sheathed in a polymeric material of a minimum wall thickness of 0,5 mm, resistant to liquid hydrocarbon or liquid chemicals as agreed between purchaser
40、 and manufacturer (see Annex A); aluminium wire conforming to ISO 209.3124Key1 internal wire2 film3 fabric4 external wireFigure 1 Section of a typical thermoplastic multi-layer hose6 Dimensions6.1 Inside diameters, with tolerances and minimum bend radiiWhen measured in accordance with ISO 4671, the
41、values of the internal diameters of the hose shall conform to Table 2. When tested by the method specified in ISO 10619-1 the value of the minimum bend radius shall be as given in Table 2. The hose shall show no sign of permanent deformation of the cross section i.e. kinking. ISO 2014 All rights res
42、erved 3BS ISO 27126:2014ISO 27126:2014(E)Table 2 Dimensions and minimum bend radiiDimensions in millimetres, except where specified as “inch”Inside diameter Tolerance Minimum bend radiimm Inch Type 1 Type 2 Type 3 Type 425 1 1 125 125 200 20032 1,1/4 1 150 150 200 20038 1,1/2 1 150 150 200 20040 1,1
43、/2 1 150 150 200 20050 2 1 200 200 225 22565 2,1/2 2 200 200 225 22575 3 2 280 280 300 30080 3 2 300 300 350 350100 4 2 400 400 400 400125 5 2 500 500 500 150 6 3 575 575 575 200 8 3 800 800 800 250 10 3 1 000 1 000 1 000 300 12 3 1 200 1 200 1 200 6.2 Tolerance on lengthWhen tested in accordance wi
44、th ISO 4671, the tolerance on the measured length of delivered hose assemblies shall be +12%.7 Performance requirements of hoses and hose assemblies7.1 CoverWhen tested in accordance with ISO 2411, the adhesion between the fabric used for the outer cover and its abrasion resistant coating shall be n
45、ot less than 1,5 kN/m.7.2 HosesWhen tested in accordance with the methods given in Table 3, the physical properties of the hoses shall conform to Table 3.4 ISO 2014 All rights reservedBS ISO 27126:2014ISO 27126:2014(E)Table 3 Physical properties of hosesProperty Unit Requirements Method(s)Proof pres
46、sure MPa barNo leakage or other signs of damage at pres-sure given in Table 1.ISO 1402 with pressure increase not less than 0,17 MPa/min (1,7 bar/min)Change in length at maxi-mum working pressure% 8 ISO 1402:2009, 8.2 initial length measured when the hose is pressurized to 0,07 MPa (0,7 bar) for 2 m
47、inTwist at maximum work-ing pressure/m 8 ISO 1402:2009, 8.2 initial reading taken when hose is pressurized to 0,07 MPa (0,7 bar) for 2 minBurst pressure MPa bar values in Table 1 ISO 1402Bend No leakage or visible damage when the hose is bent to the radius given in Table 2 and subjected to proof pre
48、ssure.ISO 10619-1Vacuum MPa barNo damage after 30 min when subjected to values in Table 1.ISO 7233:2006, method BCrush recovery (max.) % 3 Annex DFuel resistance MPa barNo leakage at proof pressure Annex EThermal ageing No leakage at proof pressure given in Table 1.Annex FFlammability See Annex G. A
49、nnex GLow temperature flex-ibility Test at minimum temperature given in Table 1ISO 10619-2Ozone resistance (cover only) No cracks after 72 h at 40C at 2 magnifi-cationISO 7326:2006, method 37.3 End fittingsEnd fittings shall be made from materials depending on their chemical resistance to the product conveyed.For all types of end fittings, the part of the fitting that enters the hose and forms the means by which the fitting is connected to th
