1、BSI Standards PublicationBS ISO 2929:2014Rubber hoses and hoseassemblies for bulk fueldelivery by truck SpecificationBS ISO 2929:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 2929:2014. Itsupersedes BS ISO 2929:2002 which is withdrawn.The UK participatio
2、n 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 of a contrac
3、t. Users are responsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 82861 4ICS 75.200; 83.140.40Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the
4、authority of theStandards Policy and Strategy Committee on 28 February 2014.Amendments issued since publicationDate Text affectedBS ISO 2929:2014 ISO 2014Rubber hoses and hose assemblies for bulk fuel delivery by truck SpecificationTuyaux en caoutchouc et assemblages de tuyaux pour livraison en vrac
5、 dhydrocarbures liquides par camions-citernes SpcificationsINTERNATIONAL STANDARDISO2929Fourth edition2014-03-01Reference numberISO 2929:2014(E)BS ISO 2929:2014ISO 2929:2014(E)ii ISO 2014 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2014All rights reserved. Unless otherwise specified, no part
6、 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 written permission. Permission can be requested from either ISO at the address below or ISOs member bod
7、y 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 2929:2014ISO 2929:2014(E) ISO 2014 All rights reserved iiiContents PageForeword iv1 Scope . 12 Normat
8、ive references 13 Terms and definitions . 24 Classification 25 Materials and construction . 26 Dimensions . 26.1 Nominal bore, internal diameter, outside diameter and their tolerances, service reeling diameter and minimum bend radius . 26.2 Concentricity. 36.3 Tolerance on length . 36.4 Minimum thic
9、kness of lining and cover 37 Physical properties 37.1 Rubber compounds . 37.2 Finished hoses and hose assemblies 48 Electrical resistance 58.1 General . 58.2 M-grade . 58.3 -grade 69 Types of test . 610 Design verification testing (type testing) . 611 Marking 611.1 Hoses . 611.2 Hose assemblies . 7A
10、nnex A (normative) Method of test for strength of adhesion between components 8Annex B (normative) Method of test for flexibility at 20 C 9Annex C (normative) Method of test for flammability 10Annex D (normative) Test method for security of coupling attachment .12Annex E (normative) Tests to be carr
11、ied out as part of design verification (type) and routine testing 13Annex F (informative) Recommended tests for production acceptance testing 14Bibliography .15BS ISO 2929:2014ISO 2929:2014(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national stand
12、ards 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 orga
13、nizations, 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 intended for its
14、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 www.iso.org/dire
15、ctives).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 document will be in the
16、 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 expressions related
17、 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, Subcommittee SC 1, Ho
18、ses (rubber and plastics).This fourth edition cancels and replaces the third edition (ISO 2929:2002) which has been revised as specified below.This minor revision of the third edition (ISO 2929:2002) was required to bring this International Standard up to date. The following changes were made. In Cl
19、ause 2 (Normative references), reference to ISO 1746 (bending tests) has been replaced by ISO 10619-1 as ISO 1746 has been withdrawn and replaced by ISO 10619-1. The same editorial changes have been made in the text of the standard wherever necessary and the note in Clause 6 (referring to inside dia
20、meters above 80 mm) has been deleted. The term “type testing” has been added to Clause 10 and Annex E as this is now the normative term for this type of test (according to ISO 8330).iv ISO 2014 All rights reservedBS ISO 2929:2014INTERNATIONAL STANDARD ISO 2929:2014(E)Rubber hoses and hose assemblies
21、 for bulk fuel delivery by truck SpecificationWARNING Persons using this International Standard should be familiar with normal laboratory practice. This International Standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the use
22、r to establish appropriate health and safety practices and to ensure compliance with any national regulatory conditions.1 ScopeThis International Standard specifies the requirements for two groups of rubber hoses and rubber hose assemblies for loading and discharge of liquid hydrocarbon fuels with a
23、 maximum working pressure of 10 bar (1,0 MPa).Both groups of hoses are designed for:a) use with hydrocarbon fuels having an aromatic-hydrocarbon content not exceeding 50 % by volume and containing up to 15 % of oxygenated compounds;b) operation within the temperature range of 30 C to + 70 C, undamag
24、ed by climatic conditions of 50 C to + 70 C when stored in static conditions.NOTE Hoses for use at temperatures lower than 30 C should be the subject of discussion between manufacturer and end user.This International Standard is not applicable to hoses and hose assemblies for LPG systems, aviation f
25、uel systems, fuel station systems or marine applications.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
26、 edition of the referenced document (including any amendments) applies.ISO 37, Rubber, vulcanized or thermoplastic Determination of tensile stress-strain propertiesISO 188, Rubber, vulcanized or thermoplastic Accelerated ageing and heat resistance testsISO 1402, Rubber and plastics hoses and hose as
27、semblies Hydrostatic testingISO 10619-1, Rubber and plastics hoses and tubing Measurement of flexibility and stiffness Part 1: Bending tests at ambient temperatureISO 1817:2011, Rubber, vulcanized Determination of the effect of liquidsISO 4649:2010, Rubber, vulcanized or thermoplastic Determination
28、of abrasion resistance using a rotating cylindrical drum deviceISO 4671, Rubber and plastics hoses and hose assemblies Methods of measurement of the dimensions of hoses and the lengths of hose assembliesISO 7233, Rubber and plastics hoses and hose assemblies Determination of resistance to vacuumISO
29、7326:2006, Rubber and plastics hoses Assessment of ozone resistance under static conditionsISO 8031, Rubber and plastics hoses and hose assemblies Determination of electrical resistance and conductivity ISO 2014 All rights reserved 1BS ISO 2929:2014ISO 2929:2014(E)ISO 8033, Rubber and plastics hoses
30、 Determination of adhesion between componentsISO 8330, Rubber and plastics hoses and hose assemblies Vocabulary3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 8330 apply.4 ClassificationHoses are designated as belonging to one of the following groups.
31、a) Group D: delivery hose, or, with certain restrictions, for use in low-vacuum applications (see footnote to Table 3).b) Group SD: suction and delivery hose, helix-reinforced.Both of these groups can be: electrically bonded, in which case the hose is designated and marked M-grade; or electrically c
32、onductive, using a conductive rubber layer, in which case the hose is designated and marked -grade.5 Materials and constructionIf the hose is mandrel-built, particulate-type release agents shall not be used.The hose shall be uniform in quality and free from porosity, air-holes, foreign inclusions an
33、d other defects.The hose shall consist of the following:a) a lining of rubber resistant to hydrocarbon fuels;b) a reinforcement of layers of woven, braided or spirally wound textile material;c) an embedded helix reinforcement (group SD only);d) two or more low-resistance electrical bonding wires (M-
34、grade only);e) an outer cover of rubber, resistant to abrasion, outdoor exposure and hydrocarbon fuels.6 Dimensions6.1 Nominal bore, internal diameter, outside diameter and their tolerances, service reeling diameter and minimum bend radiusWhen measured in accordance with ISO 4671, the internal diame
35、ter and outside diameter and their tolerances shall conform to the values specified in Table 1.When determined in accordance with ISO 10619-1, the value of the minimum bend radius shall conform to the values specified in Table 1.2 ISO 2014 All rights reservedBS ISO 2929:2014ISO 2929:2014(E)Table 1 D
36、imensionsNominal boreInternal diameterTolerance on internal diameterOutside diameterTolerance on outside diameterMinimum bend radiusMinimum external diameter of reeling drum used in servicemm mm mm mm mm mmGroup D Group SD Group D Group SD19 19,00,531,01,0125 100 250 25025 25,0 37,0 150 125 300 3003
37、2 32,0 44,0 200 150 400 35038 38,0 51,0 250 175 500 40050 50,00,766,01,2300 225 600 50051 51,0 67,0 300 225 600 50063 63,00,879,0 400 275 800 60075 75,0 91,0 450 350 900 75076 76,0 92,0 450 350 900 750100 100,0 116,01,6600 450 N.A. N.A.101 101,5 118,0 600 450 N.A. N.A.150 150,0 1,6 170,0 2,0 900 750
38、 N.A. N.A.6.2 ConcentricityWhen 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 nominal bore up to and including 76, and no greater than 1,5
39、mm for hoses of nominal bore greater than 76.6.3 Tolerance on lengthWhen measured in accordance with ISO 4671, the length of a hose or hose assembly shall be within 1 % of the required length.6.4 Minimum thickness of lining and coverWhen measured in accordance with ISO 4671, the minimum thickness of
40、 the lining of all hoses shall be 1,5 mm.For hoses of nominal bore up to and including 50, the minimum thickness of the cover shall be 1,5 mm.For hoses of nominal bore greater than 50, the minimum thickness of the cover shall be 2,0 mm.7 Physical properties7.1 Rubber compoundsWhen determined by the
41、methods listed in Table 2, the physical properties of the compounds used for the lining and cover 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 cured
42、 state as the production hoses. ISO 2014 All rights reserved 3BS ISO 2929:2014ISO 2929:2014(E)Table 2 Physical properties of rubber compoundPropertyRequirementTest methodLining CoverMinimum tensile strength 7,0 MPa 7,0 MPa ISO 37 (dumb-bell test piece)Minimum elongation at break 250 % 250 % ISO 37 (
43、dumb-bell test piece)Change in volume in fuel50 % Clause 7 of ISO 1817:2011 (72 h at 40 C in liquid 3) 100 % Clause 7 of ISO 1817:2011 (48 h at 40 C in liquid B)Maximum abrasion resistance (rela-tive volume loss V) 180 mm3Method A of ISO 4649:2010Resistance to ageing: ISO 188 (7 days at 70 C, air-ov
44、en method)Change in tensile strength from origi-nal value30 % 30 %Change in elongation at break from original value30 % 30 %7.2 Finished hoses and hose assembliesWhen determined by the methods listed in Table 3, the physical properties of finished hoses and hose assemblies shall conform to the value
45、s specified in Table 3.Table 3 Physical properties of finished hoses and hose assembliesProperty Requirements Test methodHose testsProof pressure 15 bar and no leakage or other signs of weaknessISO 1402Change in length (max.): ISO 1402at proof test pressure Group D: 0 % to + 8 %Group SD: 0 % to + 10
46、 %at 0,8 bar (vacuum) Group SD: 2 %Change in twist at proof test pressure (max.)8/m ISO 1402Resistance to vacuum (group SD only) at 0,8 bar for 10 min (see footnote)No structural damage ISO 7233Burst pressure (min.) 40 bar ISO 1402Adhesion between components:dry (min.) 2,4 N/mm Annex A (Clause A.1)a
47、fter contact with fuel (min.) 1,8 N/mm Annex A (Clause A.2)Ozone resistance at 40 C No cracking observed under 2 magnificationISO 7326:2006, method 3 relative humidity (55 10) %, ozone concentration (50 5) pphm, elongation 20 %NOTE Smaller sizes of group D hose, i.e. of nominal bore 51 and below, ma
48、y be used for vacuum applications down to 0,3 bar.4 ISO 2014 All rights reservedBS ISO 2929:2014ISO 2929:2014(E)Property Requirements Test methodFlexibility: No permanent deformation or vis-ible structural damage, no increase in electrical resistance, no impair-ment of electrical continuity and shal
49、l comply with the proof pres-sure requirementsat 20 C Annex Bat 30 C ISO 10619-2Electrical resistance (max.) M-grade: 102/lengthISO 8031-grade: 106/lengthDeformation of hose external diameter under bending at minimum bend radius and internal pressure of 0,7 bar (group D only) (max.)10 % ISO 10619-1Flammability test No burning on removal of the burner flame, no visible glowing and no leakage of fluidAnnex CHose assembly testsProof pressure 15 bar and no l
