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 978-0-626-22619-0 SANS 21487:2009Edition 1ISO 21487:2006Edition 1SOUTH AFRICAN NATIONAL STANDARD Small craft Permanently installed petrol and diesel
4、 fuel tanks This national standard is the identical implementation of ISO 21487:2006 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 0001Tel: +27 12 428 7911 Fax: +27
5、 12 344 1568 www.sabs.co.za SABS SANS 21487:2009 Edition 1 ISO 21487:2006 Edition 1 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee SABS TC 188, Small craft, in accordance with procedures of the SABS Standards Division, in compl
6、iance with annex 3 of the WTO/TBT agreement. This SANS document was published in September 2009. Reference numberISO 21487:2006(E)ISO 2006INTERNATIONAL STANDARD ISO21487First edition2006-12-15Small craft Permanently installed petrol and diesel fuel tanks Petits navires Rservoirs carburant essence et
7、 diesel installs demeure SANS 21487:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 21487:2006(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or vie
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10、for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address 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 mean
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12、ghtiso.org Web www.iso.org Published in Switzerland ii ISO 2006 All rights reservedSANS 21487:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 21487:2006(E) ISO 2006 All rights reserved iiiForeword ISO (the International Organization f
13、or Standardization) is a worldwide federation 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 th
14、e right to be represented on that committee. International 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. Internat
15、ional Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication
16、 as an International Standard requires approval by at least 75 % of the member bodies casting a vote. 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.
17、 ISO 21487 was prepared by Technical Committee ISO/TC 188, Small craft. SANS 21487:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .SANS 21487:2009This s tandard may only be used and printed by approved subscription and freemailing clients
18、 of the SABS .INTERNATIONAL STANDARD ISO 21487:2006(E) ISO 2006 All rights reserved 1Small craft Permanently installed petrol and diesel fuel tanks 1 Scope This International Standard establishes requirements for design and test of petrol and diesel fuel tanks for internal combustion engines that ar
19、e intended to be permanently installed in small craft of up to 24 m length of hull. For installation requirements, ISO 10088 applies. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies
20、. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 1817:2005, Rubber, vulcanized Determination of the effect of liquids ISO 10088:2001, Small craft Permanently installed fuel systems and fixed fuel tanks ISO 11192:2005, Small craft Graphic
21、al symbols ISO 12215-5, Small craft Hull construction and scantlings Part 5: Design pressures for monohulls, design stresses, scantlings determination1)3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 petrol hydrocarbon fuel or blend of hydroc
22、arbon fuels which is liquid at atmospheric pressure and is used in spark ignition engines 3.2 diesel hydrocarbon fuel or blend of hydrocarbon fuels which is liquid at atmospheric pressure and is used in compression ignition engines 3.3 spark ignition engine engine in which an electrical spark is pro
23、duced to ignite the fuel/air mixture 1) To be published. SANS 21487:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 21487:2006(E) 2 ISO 2006 All rights reserved3.4 compression ignition engine engine in which ignition is obtained by me
24、ans of compressing the fuel/air mixture 3.5 permanently installed securely fastened so that tools need to be used for removal 4 General properties 4.1 Resistance to liquids in contact 4.1.1 All seals such as gaskets, o-rings and joint-rings shall be of non-wicking, i.e. non-fuel absorbent, material.
25、 4.1.2 All materials used shall be resistant to deterioration by the fuel for which the system is designed and to other liquids or compounds with which the material can come in contact as installed under normal operating conditions, e.g. grease, lubricating oil, bilge solvents and sea water. 4.1.3 T
26、he melting point of materials used for manufacturing of plastic fuel tanks shall be higher than 150 C. 4.2 Copper-based alloys Copper-based alloys for fittings are acceptable for direct coupling with all tank materials specified in Table 1, except aluminium. Copper-based alloy fittings are allowed f
27、or aluminium tanks only if a galvanic barrier is arranged between fitting and tank. 4.3 Provisions to tanks 4.3.1 Provisions shall be made to enable the fuel level or quantity in the tank to be determined. 4.3.2 Metal tanks shall be designed or installed so that no exterior surface will trap water.
28、4.3.3 Rigid fuel suction tubes and fill pipes which extend near the tank bottom shall have sufficient clearance to prevent contact with the bottom during normal operation of the craft. 4.3.4 All non-integral tank supports, chocks or hangers shall either be separated from the surface of metal tanks b
29、y a non-metallic, non-hygroscopic, non-abrasive material or welded to the tank. 4.3.5 If baffles are provided, the total open area provided in the baffles shall be not greater than 30 % of the tank cross section in the plane of the baffle. 4.3.6 Baffle openings shall be designed so that they do not
30、prevent the fuel flow across the bottom or trap vapour across the top of the tank. 4.3.7 The fuel fill pipe on the tank shall have a minimum inside diameter of 31,5 mm. 4.3.8 Each ventilation pipe on the tank shall have a minimum inside diameter of 11 mm (95 mm2). 4.3.9 Suitable metallic tank materi
31、als and minimum recommended material thicknesses required for corrosion resistance are given in Table 1. Other materials may be used if they demonstrate equivalent fuel and corrosion resistance. SANS 21487:2009This s tandard may only be used and printed by approved subscription and freemailing clien
32、ts of the SABS .ISO 21487:2006(E) ISO 2006 All rights reserved 3Table 1 Metallic tank materials Material Minimum nominal sheet thickness for corrosion resistance mm Fuel Copper, internally tin-coated 1,5 Petrol only Aluminium alloys containing no more than 0,1 % copper 2,0 Diesel and petrol Stainles
33、s steel, with all welding deposits removed 1 Diesel and petrol Mild steel 2 Diesel only Mild steel externally hot-dip zinc-coated after fabrication 1,5 Diesel only Mild steel externally and internally hot-dip zinc-coated after fabrication 1,5 Petrol only Aluminized steel 1,2 Diesel and petrol 4.4 Pe
34、trol fuel tanks Petrol fuel tanks shall comply with the requirements of Clause 5. 4.5 Diesel fuel tanks Diesel fuel tanks shall comply with the requirements of Clause 6. 4.6 Installation of non-integral tanks 4.6.1 Tank mechanical fixing Non-integral tanks shall be installed so that the loads due to
35、 the mass of the full tank are safely introduced into the structure, with due consideration given to upward and downward acceleration due to the crafts movements at maximum speed in the sea. In this respect, continuous flexible supports spreading loads are preferable to rigid ones. Metal or textile
36、hold-down straps are considered as a good practice provided that chafe and corrosion are kept to a minimum. 4.6.2 Other installation requirements For other installation requirements (filling, vent lines, fuel circuit, etc.), ISO 10088 applies. 5 Petrol fuel tanks: design and tests 5.1 Design 5.1.1 P
37、etrol fuel tanks shall not be integral with the hull. 5.1.2 Petrol fuel tanks shall have all fittings and openings on top, except metallic fill and ventilation pipes, which may be connected to the sides or ends of metal petrol fuel tanks, provided that they are welded to the tank and reach above the
38、 top of the tank. 5.1.3 Tank drains are not permitted on petrol fuel tanks. SANS 21487:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 21487:2006(E) 4 ISO 2006 All rights reserved5.2 Tests to be performed 5.2.1 Petrol fuel tanks shall
39、 be leakage tested in accordance with 7.1.2. 5.2.2 Petrol fuel tanks shall be pressure-impulse tested in accordance with 7.2. 5.2.3 Non-metallic petrol fuel tanks shall meet the fire test in accordance with 7.3 and 7.4. 6 Diesel fuel tanks: design and tests 6.1 Design 6.1.1 Diesel fuel tanks may be
40、constructed independent of or integral with the hull. Care should be taken to avoid penetration of fuel in the hull. 6.1.2 Diesel fuel integral tanks shall be built in accordance with ISO 12215-5. 6.1.3 Diesel fuel tanks may have side inspection openings. Fittings in the bottom, sides or ends are al
41、lowed provided that each connection has a shut-off valve directly coupled to the tank. The valve shall be protected or located to prevent physical damage or be of at least 25 mm nominal diameter. 6.1.4 Diesel fuel tank drains, where fitted, shall have a shut-off valve with a plug on the outlet that
42、can only be removed by the use of tools, or the handle of the drain shut-off valve shall be removable with the valve in its closed position. 6.2 Tests to be performed 6.2.1 Diesel tanks shall be leakage tested in accordance with 7.1.2. 6.2.2 Diesel tanks shall be pressure tested in accordance with 7
43、.1.3. 7 Tests 7.1 Hydraulic pressure test 7.1.1 General WARNING Take care not to exceed the maximum static test pressure. Do not use solutions containing ammonia for testing. 7.1.2 Leakage test Each test fuel tank shall be internally tested with a hydraulic pressure with all its accessories. The tes
44、t pressure shall be the greatest of 20 kPa; 1,5 times the highest hydrostatic pressure to which the tank may be subjected in service (maximum fill-up height above tank top). The static test pressure shall be applied for 5 min without pressure drop or rise. After the test, the test fuel tank shall no
45、t show any leakage when using a leak detection method other than the pressure-drop method. SANS 21487:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 21487:2006(E) ISO 2006 All rights reserved 57.1.3 Hydraulic pressure/strength type t
46、est After the leakage test (7.1.2), a test fuel tank, representative of the tank series type, with all its accessories shall be pressurized again as given in 7.1.3.1 to 7.1.3.2.2. 7.1.3.1 Metal tanks The pressure shall be gradually increased to the greater of 20 kPa; 1,5 times the highest hydrostati
47、c pressure to which the tank may be subjected in service (maximum fill-up height above tank top). This pressure shall be maintained for 1 min. During this time, the tank shell shall not crack or leak; however, it may be permanently deformed. 7.1.3.2 Thermoplastic tanks Prior to the hydraulic pressur
48、e test, thermoplastic tanks shall be stored filled with test liquid C in accordance with ISO 1817 or the fuel for which the tank is fabricated for at least 28 days at an ambient temperature of not less than 21 C. The hydraulic pressure test shall be performed immediately after emptying the test liqu
49、id out of the tank. 7.1.3.2.1 Thermoplastic of density 935 kg/m3The pressure shall be gradually increased to the greater of 20 kPa; 1,5 times the highest hydrostatic pressure to which the tank may be subjected in service (maximum fill-up height above tank top). This pressure shall be maintained for 60 min. During this time, the tank shell shall not crack or leak; however, it may be permanently deformed. 7.1.3.2.2 Thermoplastic of density u 935 kg/m3The pressure shall be gradually increased to the greater of
