1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-21967-3 SANS 8469:2008 Edition 1 ISO 8469:2006 Edition 2SOUTH AFRICAN NATIONAL STANDARD Small craft Non-fire-resistant fuel hoses This nat
4、ional standard is the identical implementation of ISO 8469:2006, and is adopted with the permission of the International Organization for Standardization. Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001 Tel: +27 12 428 7911 fax: +27 12 344 1568 www.sa
5、bs.co.za SABS This standard may only be used and printed by approved subscription and freemailing clients of the SABS.SANS 8469:2008 Edition 1 ISO 8469:2006 Edition 2 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee SABS TC 188,
6、Small craft, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in August 2008. This standard may only be used and printed by approved subscription and freemailing clients of the SABS. Reference number I
7、SO 8469:2006(E) ISO 2006INTERNATIONAL STANDARD ISO 8469 Second edition 2006-07-01 Small craft Non-fire-resistant fuel hoses Petits navires Tuyaux souples non rsistants au feu, pour carburant SANS 8469:2008This standard may only be used and printed by approved subscription and freemailing clients of
8、the SABS.ISO 8469:2006(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing.
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11、ddress given below. ISO 2006 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or I
12、SOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2006 All rights reservedSANS 8469:2008This standard may only be used and printe
13、d by approved subscription and freemailing clients of the SABS.ISO 8469:2006(E) ISO 2006 All rights reserved iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards
14、 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 take p
15、art in the work. ISO collaborates 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
16、 prepare International 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 t
17、hat 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. ISO 8469 was prepared by Technical Committee ISO/TC 188, Small craft. This second edition cancels and replaces the first edition (ISO 8469:1
18、994), which has been technically revised. SANS 8469:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS.SANS 8469:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS.INTERNATIONAL STANDARD
19、 ISO 8469:2006(E) ISO 2006 All rights reserved 1 Small craft Non-fire-resistant fuel hoses 1 Scope This International Standard specifies general requirements and physical tests for non-fire-resistant hoses for conveying petrol and diesel oil designed for a working pressure not exceeding 0,34 MPa for
20、 hoses with inner diameter up to and including 10 mm and 0,25 MPa for hoses up to 63 mm inner diameter in craft of hull length up to 24 m. It applies to hoses for small craft with permanently installed fuel systems. Specifications for fire-resistant hoses are laid down in ISO 7840. 2 Normative refer
21、ences The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 3:1973, Preferred numbers Series of pre
22、ferred numbers ISO 1307: 1) , Rubber and plastics hoses Hose sizes, minimum and maximum inside diameters, and tolerances on cut-to-length hoses ISO 1402, Rubber and plastics hoses and hose assemblies Hydrostatic testing ISO 1817:2005, Rubber, vulcanized Determination of the effect of liquids ISO 723
23、3:2006, Rubber and plastics hoses and hose assemblies Determination of resistance to vacuum ISO 7326:1991, Rubber and plastics hoses Assessment of ozone resistance under static conditions 3 General requirements Hoses complying with this International Standard shall present a smooth inner surface fre
24、e from pores, other 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 Hose inner diameter Table 1 gives some of the inner diameters based on series R 10 of I
25、SO 3:1973. Tolerances shall conform to ISO 1307. 1) To be published. (Revision of ISO 1307:1992.) SANS 8469:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS.ISO 8469:2006(E) 2 ISO 2006 All rights reservedTable 1 Inner diameters and tolerance
26、s Dimensions in millimetres Inner diameter, d Tolerance 3,2 4 5 0,5 6,3 7 8 9,5 10 12,5 16 19 20 0,75 25 31,5 38 1,25 40 50 63 1,5 5 Physical tests on finished hose New hoses or sample lengths of hoses are to be used for each of the tests below. 5.1 Pressure test Fill three hoses or sample lengths f
27、rom the hoses with test liquid C as specified by ISO 1817:2005 and store them for seven days in air at an ambient temperature of 23 C 2 C. Empty the liquid out and fill the hoses or sample lengths with cold water; subject them to hydrostatic pressure as specified in ISO 1402. The hose shall withstan
28、d a hydrostatic pressure of at least 1,4 MPa for hoses of 10 mm or smaller inner diameter and 1,0 MPa for hoses with inner diameter larger than 10 mm. 5.2 Vacuum collapse test Carry out the test in accordance with ISO 7233:2006, method A using the test conditions specified in Table 2. SANS 8469:2008
29、This standard may only be used and printed by approved subscription and freemailing clients of the SABS.ISO 8469:2006(E) ISO 2006 All rights reserved 3 Table 2 Pressure conditions for the vacuum collapse test Inner diameter, d Vacuum mm kPa d u 10 80 10 25 No test required The test duration shall be
30、 60 s and the diameter of the sphere 0,8 d (inner diameter of the hose). The sphere shall pass freely through the hose while under vacuum. 5.3 Volume change in liquid C Determine the change in volume of the hose (tube and cover) by the procedure specified in ISO 1817. Place the sample lengths of hos
31、e in test liquid C at an ambient temperature of 23 C 2 C for 70 h 2 h. If the hose is made of a homogeneous compound (with or without reinforcement), the swelling in test liquid C shall not exceed 35 % by volume as measured by displacement in water. For hose with an inner layer of fuel-resistant mat
32、erial and a cover of another material mainly intended for weather and ozone resistance, the increase in volume in test liquid C shall not exceed 35 % for the tube and 120 % for the cover. 5.4 Mass reduction in liquid C Determine the reduction in mass of the hose by the procedure specified in ISO 181
33、7. Fill three hoses or sample lengths from the hoses with test liquid C, as specified in ISO 1817:2005, and store them for seven days in air at an ambient temperature of 23 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 i
34、n mass of 8 % corresponds to a decrease in volume of approximately 10 %. 5.5 Effect of ozone The hose shall be tested in accordance with ISO 7326:1991, method 1. The sample shall show no visible cracks at 2 magnification. 5.6 Fuel permeation The permeation rate for the hoses shall be determined acco
35、rding to the method specified in Annex A or an equivalent test method. The hoses shall be classified in the following way and marked in accordance with Clause 6: Type 1: hoses with a permeation rate of 100 g/m 2or less per 24 h. Type 2: hoses with a permeation rate of over 100 g/m 2per 24 h, up to a
36、nd including 300 g/m 2per 24 h. 5.7 Cold flex test For straight hose of 19 mm inner diameter and smaller, condition hose samples for 5 h at an ambient temperature of 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.
37、 The flexing shall take place within 4 s and the hose shall not fracture or show any cracks, checks or breaks in the tube or cover. SANS 8469:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS.ISO 8469:2006(E) 4 ISO 2006 All rights reservedFor
38、 straight hose larger than 19 mm inner diameter and all pre-formed hose, prepare three specimens 100 mm 6 mm from the whole hose wall. Cold condition as above in an unrestrained loop position between two jaws 50 mm wide and 64 mm apart. While in the cold chamber, bring the jaws together rapidly unti
39、l they are 25 mm apart. The specimens shall not fracture or show any cracks, checks or breaks. 5.8 Abrasion test 38 mm inner diameter and larger fuel fill hose with embedded wire reinforcement Hose samples of 38 mm inner diameter shall be tested. Larger inner diameter hose sizes to be qualified by t
40、he test shall not have a cover thickness or construction less than those of the test samples. Three identical 38 mm inner diameter hose samples shall be tested. Condition hose samples for at least 24 h at an ambient temperature of 23 C 2 C and 50 % 5 % relative humidity. The test hose shall be mandr
41、el- (core-) supported and rotate at a constant speed of 80 rev/min 2 rev/min. Subject the hose to a laterally moving abrasive surface, i.e. 80 grit aluminium oxide (Al 2 O 3 ) emery cloth, parallel to the longitudinal axis of the hose. The abrasive surface shall be (25 5) mm (75 5) mm affixed to a h
42、ard surface which will cycle back and forth 75 mm 5 mm in each direction while loaded with a constant normal force of 45 5 N. One test cycle shall equal one 360 rotation of the outside diameter of the hose and one back and forth movement of the abrasive surface. After 1 000 cycles, the three test sa
43、mples shall have no helical wire reinforcement exposed at the point of contact with the abrasive surface. 5.9 Dry heat resistance test After heat ageing for 70 h at an ambient temperature of 100 C 2 C, specimens taken from the cover material shall not have a reduction in tensile strength of more tha
44、n 20 % or a reduction in elongation of more than 50 % of the original values of the unheated specimens. 5.10 Oil resistance test After 70 h immersion in ISO 1817:2005 reference oil number 3 at an ambient temperature of 100 C 2 C, specimens taken from the cover shall not have a reduction of tensile s
45、trength or elongation exceeding 40 % or a volumetric change outside the range of 5 % to +25 % of the pre-immersion values. Specimens taken from the cover material shall not have a volumetric change outside the range of 0 to +100 %. 5.11 Adhesion test The force required to separate a 25 mm width samp
46、le of bonded tube and cover material by tensile force on partially separated layers applied in opposite directions at 23 C 2 C shall be not less than 27 N. 6 Marking To comply with this International Standard, a hose shall be marked at least every 0,3 m with the following: the name or trade mark of
47、the manufacturer; the last two figures of the year of manufacture; inner diameter, in millimetres; “ISO 8469-B1” or “ISO 8469-B2”. NOTE “B” is used to designate a non-fire-resistant type of fuel hose; “1” designates a fuel hose with a fuel permeation rate of 100 g/m 2per 24 h or less; “2” designates
48、 a fuel hose with a permeation rate of 300 g/m 2per 24 h or less. The marking shall be in letters and figures at least 3 mm high and shall withstand washing with ordinary detergents. Additional information may be included in the marking. SANS 8469:2008This standard may only be used and printed by ap
49、proved subscription and freemailing clients of the SABS.ISO 8469:2006(E) ISO 2006 All rights reserved 5 Annex A (normative) Fuel permeation test (or equivalent test method) A.1 Principle Sample lengths of the hose to be tested are first exposed to fuel for seven days before the test. After exposure to the fuel, the sample lengths are filled with test liquid and the liquid lost by permeation during time periods of 24 h shall be determined by weighing f
