1、BSI Standards PublicationBS ISO 27127:2014Thermoplastic multi-layer (non-vulcanized) hoses and hoseassemblies for the transferof liquid petroleum gas andliquefied natural gas SpecificationBS ISO 27127:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 27127:2
2、014.The UK 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 necessary
3、provisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 79193 2ICS 75.200; 83.140.40Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard w
4、as published under the authority of theStandards Policy and Strategy Committee on 31 July 2014.Amendments issued since publicationDate Text affectedBS ISO 27127:2014 ISO 2014Thermoplastic multi-layer (non-vulcanized) hoses and hose assemblies for the transfer of liquid petroleum gas and liquefied na
5、tural gas SpecificationTuyaux et flexibles multicouches (non vulcaniss) thermoplastiques pour le transfert de gaz de ptrole liquide et de gaz naturel liqufi SpcificationsINTERNATIONAL STANDARDISO27127First edition2014-07-01Reference numberISO 27127:2014(E)BS ISO 27127:2014ISO 27127:2014(E)ii ISO 201
6、4 All rights reservedCOPYRIGHT 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, wit
7、hout prior written 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 Switz
8、erlandBS ISO 27127:2014ISO 27127:2014(E) ISO 2014 All rights reserved iiiContents PageForeword iv1 Scope . 12 Normative references 13 Terms and definitions . 24 Classification 25 Materials and construction . 26 Dimensions . 36.1 Inside diameters, with tolerances and minimum bend radii 36.2 Tolerance
9、 on length . 47 Performance requirements of hoses and hose assemblies 47.1 Film and fabric 47.2 Hoses . 47.3 End fittings . 57.4 Hose assemblies . 57.5 Electrical continuity . 68 Test frequency . 69 Type tests . 610 Marking 610.1 Hose marking . 610.2 Hose assembly marking 7Annex A (normative) Crush
10、recovery test . 8Annex B (normative) Method of test for thermal ageing 10Annex C (normative) Method of test of fittings subjected to low temperatures 11Annex D (normative) Sequence of hydrostatic tests .12Annex E (normative) Method of test for fitting security .13Annex F (normative) Method of test f
11、or leak tightness15Annex G (normative) Type and routine tests for hoses and hose assemblies 16Annex H (informative) Batch tests for hoses and hose assemblies17Bibliography .18BS ISO 27127:2014ISO 27127:2014(E)ForewordISO (the International Organization for Standardization) is a worldwide federation
12、of national standards 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. I
13、nternational organizations, 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.The procedures used to develop this document and those
14、intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular 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
15、 www.iso.org/directives).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. Details of any patent rights identified during the development of the docume
16、nt will be in the Introduction and/or on the ISO list of patent declarations received (see 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 ex
17、pressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 45, Rubber and rubber products, Subc
18、ommittee SC 1, Rubber and plastics hoses and hose assemblies.ISO 27127 is based on EN 13766:2010 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 were replaced by ref
19、erences to ISO standards wherever possible; Clause 2, references have been amended; 6.1, Table 2, have 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); 7.2, Table 3, now requires the change
20、in length and twist to be measured at maximum working pressure instead of proof pressure and Annex D has been amended accordingly; 7.4, Table 4, the reference to the test method clause, to determine electrical resistance between fittings according to ISO 8031 has been corrected; Clause 10, the marki
21、ng has been amended according ISO/TC 45/SC 1 remarks.iv ISO 2014 All rights reservedBS ISO 27127:2014INTERNATIONAL STANDARD ISO 27127:2014(E)Thermoplastic multi-layer (non-vulcanized) hoses and hose assemblies for the transfer of liquid petroleum gas and liquefied natural gas SpecificationWARNING Pe
22、rsons using this International Standard should be familiar with normal laboratory practice. This International Standard 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
23、to ensure compliance with any national regulatory conditions.1 ScopeThis International Standard specifies requirements for two types of thermoplastic multi-layer (non-vulcanized) transfer hoses and hose assemblies for carrying liquefied petroleum gas and liquefied natural gas. Each type is subdivide
24、d into two classes, one for onshore duties, and the other for offshore. Class A hose is for use onshore. Class B hose is for use offshore.This International Standard is applicable for hose sizes from 25 mm to 250 mm, working pressures from 10,5 bar to 25 bar and operating temperatures from 196 C to
25、+45 C, according to class.NOTE Offshore LNG hose assemblies are also specified in EN 14742.2 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.
26、For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 148-1, Metallic materials Charpy pendulum impact test Part 1: Test methodISO 527-1, Plastics Determination of tensile properties Part 1: General principlesISO 4671, Rubber and plastics hoses
27、and hose assemblies Methods of measurement of the dimensions of hoses and the lengths of hose assembliesISO 8031:2009, Rubber and plastics hoses and hose assemblies Determination of electrical resistance and conductivityISO 8330, Rubber and plastics hoses and hose assemblies VocabularyISO 1043-1, Pl
28、astics Symbols and abbreviated terms Part 1: Basic polymers and their special characteristicsISO 1402:2009, Rubber and plastics hoses and hose assemblies Hydrostatic testingISO 10619-1, Rubber and plastics hoses and tubing Measurement of flexibility and stiffness Part 1: Bending tests at ambient tem
29、peratureISO 10619-2, Rubber and plastics hoses and tubing Measurement of flexibility and stiffness Part 2: Bending tests at sub-ambient temperaturesISO 13934-1, Textiles Tensile properties of fabrics Part 1: Determination of maximum force and elongation at maximum force using the strip method ISO 20
30、14 All rights reserved 1BS ISO 27127:2014ISO 27127:2014(E)ISO 16143-3, Stainless steels for general purposes Part 3: WireEN 10088-3, Stainless steels Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for gen
31、eral purposes3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 8330 apply.4 ClassificationHoses shall be classified as given in Table 1 according to their usage: Class A hose is for use onshore, Class B hose is for use offshore, working pressure, and wo
32、rking temperature range.Table 1 Pressure and temperature rangePressure/temperatureClass A Class B Class A Class BType 1 Type 1 Type 2 Type 2MPa Bar MPa Bar MPa Bar MPa BarMaximum working pressure 2,50 25 2 20 1,30 13 1,05 10,5Proof pressure 3,75 37,5 3 30 1,95 19,5 1,58 15,8Minimum burst pressure 10
33、 100 10 100 5,20 52 5,25 52,5Working temperature range (C)50 3 to +45 50 3 to +45 196 5 to +45 196 5 to +45NOTE 1 1 bar = 0,1 MPa.NOTE 2 Due to pressurization during test and operations, the temperature of the fluid could increase. The indicated temperatures are measured at atmospheric pressure.5 Ma
34、terials and constructionHoses shall be constructed as shown in Figure 1 and shall consist of the following:a) Class A:1) an internal wire helix of austenitic stainless steel conforming to EN 10088-3, Table 4, numbers 1,443 6 (X3CrNiMo 17-13-3) or ISO 16143-3, Table 1 X2CrNi 19-11, X5CrNiMo 17-12-2,
35、X2CrNiMo 17-12-2;2) a multi-ply wall of layers of films and fabrics made of thermoplastics that in combination give the required properties specified in Table 1 and provide a complete seal;2 ISO 2014 All rights reservedBS ISO 27127:2014ISO 27127:2014(E)3) an external wire helix of austenitic stainle
36、ss steel conforming to EN 10088-3, Table 4, numbers 1,443 6 (X3CrNiMo 17-13-3) or ISO 16143-3, Table 1 X2CrNi 19-11, X5CrNiMo 17-12-2, X2CrNiMo 17-12-2;b) Class B:1) an internal wire helix of austenitic stainless steel conforming to EN 10088-3, Table 4, numbers 1,443 6 (X3CrNiMo 17-13-3) or ISO 1614
37、3-3, Table 1 X2CrNi 19-11, X5CrNiMo 17-12-2, X2CrNiMo 17-12-2;2) a multi-ply wall of layers of films and fabrics made of thermoplastics that in combination give the required properties specified in Table 1 and provide a complete seal;3) an external wire helix of austenitic stainless steel conforming
38、 to EN 10088-3, Table 4, numbers 1,443 6 (X3CrNiMo 17-13-3) or ISO 16143-3, Table 1 X2CrNi 19-11, X5CrNiMo 17-12-2, X2CrNiMo 17-12-2.NOTE By agreement between manufacturer and purchaser, the outer layer may have colour identification.3124Key1 internal wire2 film3 fabric4 external wireFigure 1 Sectio
39、n of a typical thermoplastic multilayer hose6 Dimensions6.1 Inside diameters, with tolerances and minimum bend radiiWhen measured in accordance with ISO 4671, the values of the internal diameter of the hose shall conform to Table 2. When tested by the method described in ISO 10619-1, the value of th
40、e 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 reserved 3BS ISO 27127:2014ISO 27127:2014(E)Table 2 Dimensions and minimum bend radiusDimensions in millimetres, except where specified as
41、“inch”Inside diameterTolerance Minimum bend radiusmm inch25 1 1 15032 1,1/4 1 17538 1,1/2 1 17540 1,1/2 1 20050 2 1 20065 2,1/2 2 20075 3 2 25080 3 2 250100 4 2 500125 5 2 550150 6 3 660200 8 3 910250 10 3 2 500300 12 3 2 5006.2 Tolerance on lengthWhen tested in accordance with ISO 4671 the toleranc
42、e on the measured length of delivered hose assemblies shall be +12%.7 Performance requirements of hoses and hose assemblies7.1 Film and fabricWhen tested at the minimum temperature, Type 1: 50 3 C and Type 2: 196 5 C (and in accordance with ISO 13934-1 or equivalent for fabric testing and ISO 527-1
43、or equivalent for film testing) samples of film and fabric shall have an elongation at break of not less than 10 %.7.2 HosesWhen tested in accordance with the methods given in Table 3, the physical properties of the hoses shall conform to Table 3.Table 3 Physical properties of hosesProperty Unit Req
44、uirement MethodProof pressure MPa barNo leakage or other signs of damage at pressure given in Table 1ISO 1402 with pressure increase not less than 0,17 MPa/min (1,7 bar/min)Change in length at maximum working pres-sure% 8 % ISO 1402:2009, 8.2 initial length measured when the hose is pressurized to 0
45、,07 MPa (0,7 bar)4 ISO 2014 All rights reservedBS ISO 27127:2014ISO 27127:2014(E)Property Unit Requirement MethodTwist at maximum working pressure/m 8 ISO 1402:2009, 8.2 initial read-ing taken when hose is pressur-ized to 0,07 MPa (0,7 bar)Burst pressure MPa bar Values in Table 1 ISO 1402Bend No lea
46、kage or visible damage when the hose is bent to radius given in Table 2 and subjected to the proof pressure.ISO 10619-1Crush recovery (max) % 3 Annex AThermal ageing No leakage at proof pressure given in Table 1Annex BLow temperature flex-ibility Test at minimum temperature given in Table 1ISO 10619
47、-2Ozone resistance (cover only) No cracks after 72 h at 40 C at 2 magnifi-cationISO 7326, method 37.3 End fittingsEnd fittings and metallic ferrules shall be made from the following materials depending on the type of hose to be used in the assembly: Type 1 hose: LT (low temperature) grade carbon ste
48、el or stainless steel; Type 2 hose: austenitic stainless steel tested in accordance with Annex C.For all types of end fittings, that part of the fitting that enters the hose and forms the means by which the fitting is connected to the hose shall be provided with scrolls or protrusions on the surface
49、 that correspond to the pitch of the internal helix wire of the hose.7.4 Hose assembliesHose assemblies shall be fitted with end fittings as described in 7.3.End fittings shall be attached to the hose by one of the following methods:a) by the use of a seal and a metal ferrule which is swaged or crimped;b) by the use of a thermoset resin e.g. epoxy and a metal ferrule which is swaged or crimped.NOTE Hoses should be assembled by the hose man
