1、December 2013 Translation by DIN-Sprachendienst.English price group 11No 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).I
2、CS 47.080!%*q#“2077800www.din.deDDIN EN ISO 7840Small craft Fire-resistant fuel hoses (ISO 7840:2013);English version EN ISO 7840:2013,English translation of DIN EN ISO 7840:2013-12Kleine Wasserfahrzeuge Feuerwiderstandsfhige Kraftstoffschluche (ISO 7840:2013);Englische Fassung EN ISO 7840:2013,Engl
3、ische bersetzung von DIN EN ISO 7840:2013-12Petits navires Tuyaux souples pour carburant rsistants au feu (ISO 7840:2013);Version anglaise EN ISO 7840:2013,Traduction anglaise de DIN EN ISO 7840:2013-12SupersedesDIN EN ISO 7840:2004-05www.beuth.deDocument comprises 18 pagesIn case of doubt, the Germ
4、an-language original shall be considered authoritative.11.13 DIN EN ISO 7840:2013-12 2 A comma is used as the decimal marker. National foreword This document (EN ISO 7840:2013) has been prepared by Technical Committee ISO/TC 188 “Small craft” in collaboration with Technical Committee CEN/BT/WG 69 “S
5、mall craft” (Secretariat: SIS, Sweden). The responsible German body involved in its preparation was the Normenstelle Schiffs- und Meerestechnik (Shipbuilding and Marine Technology Standards Committee), Working Committee NA 132-08-01 AA Kleine Wasserfahrzeuge. The European Standards referred to in th
6、is document have been published as DIN EN or DIN EN ISO Standards with the same number. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 3 DIN 323-1 ISO 1307 DIN EN ISO 1307 ISO 1402 DIN EN ISO 1402 ISO 7233 DIN EN ISO 7233 ISO 7326 DIN
7、EN 7326 ISO 10088 DIN EN ISO 10088 Amendments This standard differs from DIN EN ISO 7840:2004-05 as follows: a) a standardized test liquid for the bursting pressure test has been specified; b) the conditions for the fuel permeation test have been modified; c) the standard has been editorially revise
8、d. Previous editions DIN EN ISO 7840: 1995-06, 2004-05 DIN EN ISO 7840 Corrigendum 1: 2001-03 DIN EN ISO 7840:2013-12 3 National Annex NA (informative) Bibliography DIN 323-1:1974, Preferred Numbers and Series of Preferred Numbers Basic Values, Calculated Values, Rounded Values DIN EN ISO 1307, Rubb
9、er and plastics hoses Hose sizes, minimum and maximum inside diameters, and tolerances on cut-to-length hoses DIN EN ISO 1402, Rubber and plastics hoses and hose assemblies Hydrostatic testing DIN EN ISO 7233:2008-07, Rubber and plastics hoses and hose assemblies Determination of resistance to vacuu
10、m DIN EN ISO 7326:2009-10, Rubber and plastics hoses Assessment of ozone resistance under static conditions DIN EN ISO 10088, Small craft Permanently installed fuel systems DIN EN ISO 7840:2013-12 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 7840 July 2
11、013 ICS 47.080 Supersedes EN ISO 7840:2004English Version Small craft - Fire-resistant fuel hoses (ISO 7840:2013) Petits navires - Tuyaux souples pour carburant rsistants au feu (ISO 7840:2013) Kleine Wasserfahrzeuge - Feuerwiderstandsfhige Kraftstoffschluche (ISO 7840:2013) This European Standard w
12、as approved by CEN on 8 June 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 standard without any alteration. Up-to-date lists and bibliographical references concerning such nati
13、onal 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 any other language made by translation under the responsibility of a CEN member into its own langu
14、age 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 Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
15、 Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Man
16、agement 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 7840:2013: EContents PageForeword 31 Scope . 42 Normative references 43 General requirements . 44 Nominal bore 45 Physical t
17、ests on finished hose 55.1 General . 55.2 Test liquids 55.3 Bursting pressure . 55.4 Vacuum-collapse test .65.5 Volume change in test liquids.65.6 Mass reduction of test hose65.7 Fire resistance .65.8 Effect of ozone .65.9 Fuel permeation .65.10 Cold-flex test . 75.11 Abrasion test 38 mm and larger
18、fuel-fill hose with helical wire embedded reinforcement 75.12 Dry heat resistance 75.13 Oil resistance test 75.14 Adhesion test 76 Marking 7Annex A (normative) Fire test . 9Annex B (normative) Fuel permeation test (or equivalent test method) 11Bibliography .14Annex ZA (informative) Relationship betw
19、een this Standard and the Essential Requirements of EU Directive 94/25/EC as amended by Directive 2003/44/E C 13 DIN EN ISO 7840:2013-12 EN ISO 7840:2013 (E) 2.Foreword This document (EN ISO 7840:2013) has been prepared by Technical Committee ISO/TC 188 “Small craft”. This European Standard shall be
20、 given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by January 2014, and conflicting national standards shall be withdrawn at the latest by January 2014. Attention is drawn to the possibility that some of the elements of this document
21、 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 7840:2004. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Associa
22、tion, and supports essential requirements of EU Directive(s). For relationship with EU Directive, see informative Annex ZA, which is an integral part of this document. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to impl
23、ement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania
24、, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 7840:2013 has been approved by CEN as EN ISO 7840:2013 without any modification. DIN EN ISO 7840:2013-12 EN ISO 7840:2013 (E) 3 1 ScopeThis International Standard specifies general req
25、uirements and physical tests for fire-resistant hoses for conveying petrol or petrol blended with ethanol and diesel fuel or diesel fuel blended with FAME, designed for a working pressure not exceeding 0,34 MPa for hoses with nominal bore up to and including 10 mm and 0,25 MPa for hoses up to 63 mm
26、inner diameter in craft of hull length up to 24 m.It applies to hoses for small craft with permanently installed fuel systems. It does not apply to hoses entirely within the splash well at the stern of the craft connected directly to an outboard engine.Specifications for non-fire-resistant fuel hose
27、s are given in ISO 84691. Specifications for permanently installed fuel systems are given in ISO 10088.2 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 cit
28、ed applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 3:1973, Preferred numbers Series of preferred numbersISO 1307, Rubber and plastics hoses Hose sizes, minimum and maximum inside diameters, and tolerances on cut-to-length hosesISO
29、 1402, Rubber and plastics hoses and hose assemblies Hydrostatic testingISO 1817:2011, Rubber, vulcanized or thermoplastic Determination of the effect of liquidsISO 7233:2006, Rubber and plastics hoses and hose assemblies Determination of resistance to vacuumISO 7326:2006, Rubber and plastics hoses
30、Assessment of ozone resistance under static conditionsISO 10088:1), Small craft Permanently installed fuel systemsEN 14214:2008+Amd.1:2009, Automotive fuels Fatty acid methyl esters (FAME) for diesel engines Requirements and test methods3 General requirementsHoses complying with this International S
31、tandard shall present a non-porous, smooth inner surface, free from defects and chemical contaminants.Hoses shall demonstrate suitability for marine use by complying with the requirements of the tests in Clause 5. They shall be marked according to Clause 6.4 Nominal boreTable 1 gives some of the inn
32、er diameters based on series R 10 of ISO 3:1973. Tolerances shall conform to ISO 1307 or the values given in Table 1.1) To be published.N1)National footnote: EN 14214:2008+Amd.1:2009 was replaced by EN 14214:2012. N1)DIN EN ISO 7840:2013-12 EN ISO 7840:2013 (E) 4 Table 1 Inner diameters and toleranc
33、esDimensions in millimetresInner diameter, d Tolerance3,245 0,56,3789,51012,5161920 0,752531,538 1,25405063 1,55 Physical tests on finished hose5.1 GeneralNew samples shall be used for each of the tests below.5.2 Test liquidsa) Petrol:1) by volume 100 % liquid 2 specified in ISO 1817:2011, Table A.2
34、;AND2) a mixture of by volume 90 % of liquid 2 specified in ISO 1817:2011, Table A.2, and 10 % by volume of ethanol.b) Diesel:1) a mixture of by volume 90 % liquid F specified in ISO 1817:2011 and 10 % by volume of Fatty Acid Methyl Esters (FAME), specified in EN 14214:2008+Amd.1:2009.5.3 Bursting p
35、ressureFor each test liquid as specified in 5.2, fill three hoses or sample lengths from the hoses and store them for 40 days in air at a temperature of 40 C 2 C.DIN EN ISO 7840:2013-12 EN ISO 7840:2013 (E) 5 Empty the liquid out and fill the hoses or sample lengths with cold water; subject them to
36、hydrostatic pressure as specified in ISO 1402.The bursting pressure shall be at least 1,4 MPa for hoses with an inner diameter of 10 mm or less and 1,00 MPa for hoses with an inner diameter of more than 10 mm.5.4 Vacuum-collapse testCarry out the test in accordance with ISO 7233:2006, method A, usin
37、g the test conditions specified in Table 2.Table 2 Pressure conditions for the vacuum collapse testInner diameter, d mmVacuum kPad 10 8010 25 No test requiredThe test duration shall be 60 s and the diameter of the sphere 0,8 d (inner diameter of the hose). The sphere shall pass freely through the ho
38、se while under vacuum.5.5 Volume change in test liquidsDetermine the change in volume of the hose (tube and cover) by the procedure described in ISO 1817.Place the test pieces in test liquids as specified in 5.2 at a temperature of 40 C 2 C for 40 days.If the hose is made of a homogeneous compound (
39、with or without reinforcement), the swelling shall not exceed 35 % by volume, as measured by displacement in water. For hose with an inner layer of fuel-resistant material and a cover of another material, mainly intended for weather and ozone resistance, the increase in volume shall not exceed 35 %
40、for the tube and 120 % for the cover.5.6 Mass reduction of test hoseDetermine the reduction in mass of the inner layer by the procedure described in ISO 1817. Fill three hoses or submerge test pieces from the hoses with test liquids, as specified in 5.2, and store them for 40 days in air at a temper
41、ature of 40 C 2 C.The reduction in mass of the inner layer shall not exceed 8 % of the initial mass of the test pieces.NOTE A reduction in mass of 8 % corresponds to a decrease in volume of approximately 10 %.5.7 Fire resistanceTest the hose in accordance with the method described in Annex A.5.8 Eff
42、ect of ozoneThe hose shall be tested as described in ISO 7326:2006, Method 1. The sample shall show no visible cracks at 7 magnification.5.9 Fuel permeationThe permeation rate for the hoses shall be determined according to the method specified in Annex B or an equivalent test method. The hoses shall
43、 be classified in the following way and marked in accordance with Clause 6:Type 1: hoses with a permeation rate of 100 g/m2or less per 24 h.DIN EN ISO 7840:2013-12 EN ISO 7840:2013 (E) 6 Type 2: hoses with a permeation rate of over 100 g/m2per 24 h, up to and including 300 g/m2per 24 h.5.10 Cold-fle
44、x testFor straight hoses of 19 mm inside diameter and less, condition three hose samples for 5 h at 20 C 2 C. Flex in the cold chamber through 180 from the centreline to a diameter of 10 times the maximum outside diameter of the hose. The flexing shall take place within 4 s and the hose shall not fr
45、acture or show any cracks, checks or break in the tube or cover.For straight hoses larger than 19 mm inside diameter and all pre-formed hoses, prepare three samples (100 5) mm (6 1) mm from the whole hose wall and condition them for 5 h at 20 C 2 C in an unrestrained loop, positioned between two jaw
46、s 50 mm wide and 64 mm apart. While in the cold chamber, bring the jaws together rapidly until they are 25 mm apart. The samples shall not fracture or show any cracks, checks or breaks.5.11 Abrasion test 38 mm and larger fuel-fill hose with helical wire embedded rein-forcementHose samples of 38 mm i
47、nner diameter shall be selected for the test. Larger bore hose sizes to be qualified by the test shall not have a cover thickness or construction less than those of the test samples.Three identical 38 mm bore hose samples shall be tested. Condition hose for at least 24 h at 23 C 2 C and 50 % 5 % relative humidity. The test hose shall be mandrel- (core-) supported and rotated at a constant speed of 80 r/min 2 r/min. Subject hose to a laterally mov
