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1、BRITISH STANDARD BS ISO 15734:2001 Ships and marine technology Hydrostatic release units ICS 47.020.99; 47.080 ? Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 14:35:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 15734:2001 This British Standard was published under the authority of the
2、 Standards Policy and Strategy Committee on 9 September 2003 BSI 9 September 2003 ISBN 0 580 42590 8 National foreword This British Standard reproduces verbatim ISO 15734:2001 and implements it as the UK national standard. The UK participation in its preparation was entrusted by Technical Committee
3、SME/32, Ships and marine technology Steering, to Subcommittee SME/32/1, Ships and marine technology Lifesaving and fire protection, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Stan
4、dards which implement international publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publicatio
5、n does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/Eu
6、ropean committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page,
7、 pages ii and iii, a blank page, pages 1 to 7 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 14:35:56 GMT+00:00 2006, U
8、ncontrolled Copy, (c) BSI INTERNATIONAL STANDARD ISO 15734 First edition 2001-06-01 Reference number ISO 15734:2001(E) Ships and marine technology Hydrostatic release units Navires et technologie maritime Dispositifs de largage hydrostatique BS ISO 15734:2001 Licensed Copy: sheffieldun sheffieldun,
9、na, Sun Nov 26 14:35:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO :43751(1002)E ii ISO 1002 All rithgs rreseved DPF discliamer This FDP feli amy ctnonia ededdebm tyfep.seca In aroccecnad tiwh Asebod gnisnecil ycilop, thsi feli may be pritnde ro eivwde but sllah ton eb tideed sselnu teh tyfepsec
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12、vtne ttah a pborlme talerign to ti si f,dnuo saelpe ifnrom teh tneClar Stercearita ta the serddas givne olebw. ISO 1002 llA rithgs rresev.de Unless torehiwse sficep,dei on rapt of tihs buptacilion may be rperdecudo ro tuilidez in any form ro by nay m,snae ele-c trinoc or m,lacinahce gnidulcni tohppo
13、coyign dna cimrfo,mli tiwtuoh repminoiss ni rwitgni fmor eitreh ISO at teh serddas olebw ro ISOs mme- ebr ydob in the cuotnry fo the rtseuqeer. ISO cporythgi fofiec esaC tsopael 65 1121-HC Geneva 02 Te.l + 41 22 947 10 11 Fax + 14 22 479 09 47 E-liam copyrightsio.ch Web wwwsi.oc.h BS ISO 15734:2001
14、Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 14:35:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 37511002:4)E( ISO 1002 All rithgs rreseved iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies).
15、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 organizations, governmental and non-g
16、overnmental, 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. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3
17、. 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 that some of the elements of this
18、 International Standard may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. International Standard ISO 15734 was prepared by Technical Committee ISO/TC 8,Ships and marine technology, Subcommittee SC 1,Lifesaving and fire protection. B
19、S ISO 15734:2001 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 14:35:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI blank BS ISO 15734:2001 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 14:35:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ANRETNIITOLAN TSDNADRAISO 37511002:4)E( ISO 1
20、002 All rithgs rreseved 1 Ships and marine technology Hydrostatic release units 1Scope This International Standard specifies performance and testing requirements for hydrostatic release units used in conjunction with float-free lifesaving appliances including inflatable liferafts and Emergency Posit
21、ion Indicating Radio Beacons (EPIRB s). Hydrostatic release units which comply with this International Standard and which have been formally approved by the cognizant Maritime Safety Administration may be considered to comply with the 1974 Safety Of Life At Sea Convention (SOLAS 74) and the IMO Life
22、-Saving Appliances Code, as amended. 2Normative reference The following normative document contains provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do no
23、t apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent edition of the normative document indicated below. For undated references, the latest edition of the normative document referred to applies. Members
24、of ISO and IEC maintain registers of currently valid International Standards. ISO 9227:1990,Corrosion tests in artificial atmospheres Salt spray tests. 3General requirements 3.1Construction A hydrostatic release unit used in the float-free arrangements of a survival craft or EPIRB shall be so constr
25、ucted that the materials used are compatible so as to prevent malfunction of the unit; particular care shall be taken to ensure that metallic-coated parts are not used where damage to the coating from contact with other parts could adversely affect the functioning of the unit, it has drains to preve
26、nt the accumulation of water in the hydrostatic chamber when the unit is in its normal position, each structural part connected to the painter system has a strength not less than that required by the painter, it can readily be removed for replacement or annual servicing, materials and components sha
27、ll be corrosion-resistant and not affected by seawater, oil or detergents, it can function properly throughout an air temperature range ofto, it can function properly throughout a seawater temperature range ofto, it can automatically release the float-free lifesaving appliance at a depth of not more
28、 than, and it cannot release prematurely when seawater washes over the unit. 3.2Markings The unit shall be marked permanently on its exterior with its manufacturer, type, and serial number, a means of identifying its date of manufacture, 30 C +65 C 1 C +30 C 4 m BS ISO 15734:2001 Licensed Copy: shef
29、fieldun sheffieldun, na, Sun Nov 26 14:35:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO :43751(1002)E 2 ISO 1002 All rithgs rreseved the maximum-capacity liferaft with which the unit may be used, if the unit has such a limitation, and a means of indelibly marking its date of expiry, if it is of
30、the disposable type. 3.3Servicing record plate If the unit is of a type which requires annual servicing, it shall be provided with a permanently attached plate to maintain a record of servicing. 3.4Operating and maintenance instructions Operating and maintenance instructions and information shall be
31、 provided in a clear and concise form in the appropriate language or languages and shall include the following: general description of the unit; installation instructions; any on-board maintenance requirements; servicing requirements. 3.5Weak link 3.5.1Materials A weak link used in conjunction with
32、a hydrostatic release unit in a float-free arrangement shall be made from a material which is corrosion-resistant and not affected by seawater, oil or detergent, have the ends either whipped or heat treated, when made of cordage, and have each end looped around a thimble and secured with a locking f
33、errule, when made from a flexible wire. 3.5.2Strength A weak link used in conjunction with a hydrostatic release unit in a float-free arrangement of an inflatable liferaft shall be of sufficient strength to pull the painter out of the liferaft container, operate the liferaft inflation system, and br
34、eak under a tensile force of betweenand. 4Prototype tests 4.1Technical tests 4.1.1Testing sequence At least two prototype hydrostatic release units shall be tested in the sequence listed below. No parts may be renewed or repaired between the tests. a)Corrosion-resistance test (4.1.2). b)Temperature
35、cycling test (4.1.3). c)Submergence and manual release test (4.1.4). 1,8 kN2,6 kN BS ISO 15734:2001 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 14:35:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 37511002:4)E( ISO 1002 All rithgs rreseved 3 d)Strength test (4.1.5). e)Membrane-material
36、 technical tests (4.1.6). 4.1.2Corrosion resistance test The hydrostatic release units shall be exposed to a salt water spray test (sodium chloride solution) in accordance with ISO 9227, at a temperature offorwithout interruption. After completion, the hydrostatic release units shall show no corrosi
37、on which could affect their efficient functioning, and shall then be subjected to the following tests, after which they shall continue to function efficiently. 4.1.3Temperature tests 4.1.3.1The hydrostatic release units shall be alternately submitted to surrounding temperatures ofand . These alterna
38、ting half-cycles need not follow immediately after each other, and the following procedure is acceptable: anhalf-cycle atto be completed in one day; the units removed from the hot chamber and left exposed under normal room conditions until the next day; anhalf-cycle atto be completed in one day; the
39、 units removed from the cold chamber and left exposed under normal room conditions until the next day; repeat the above procedure for a further nine cycles. 4.1.3.2On completion, the release shall be capable of being released manually if it is designed for manual release. 4.1.3.3Following the temper
40、ature cycling, as specified in 4.1.3.1, one hydrostatic release unit shall be taken from a stowage temperature ofand shall operate in seawater at a temperature of. Another hydrostatic release unit shall be taken from a stowage temperature ofand shall then operate in seawater at a temperature of. 4.1
41、.4Submergence and manual release test 4.1.4.1Each hydrostatic release unit submerged in water or a water-filled pressure-testing tank shall, when a buoyant load equal to its designated capacity is applied, release at a depth of betweenand. On completion of these tests and resetting, the hydrostatic
42、release unit shall be capable of being released manually if it is designed to allow manual release of the unit. It shall then be opened for inspection and shall show no significant signs of corrosion or degradation. 4.1.4.2On being opened up for inspection, the unit shall show no significant signs o
43、f corrosion or degradation which could affect its efficient functioning. 4.1.5Strength test Each hydrostatic release unit, if intended to form part of the painter system of a liferaft, shall be subjected to a tensile load of at leastfor a period of. If the release is to be fitted to a liferaft appro
44、ved to carry more than 25 persons, the tensile load shall be increased to. On completion, the unit, if designed with a manual release, shall be capable of being released manually. 4.1.6Membrane-material tests for temperature resistance 4.1.6.1Requirements Two membranes shall show no visible signs of
45、 cracking when tested for resistance to cold and heat as specified in 4.1.6.2 and 4.1.6.3, respectively. 5 % +35 C 3 C 160 h 30 C +65 C 8 h65 C 8 h30 C 30 C 1 C +65 C +30 C 1,5 m4 m 10 kN30 min 15 kN BS ISO 15734:2001 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 14:35:56 GMT+00:00 2006, Un
46、controlled Copy, (c) BSI ISO :43751(1002)E 4 ISO 1002 All rithgs rreseved 4.1.6.2Resistance to cold Temperature:. Exposure time:. Flex testing:(stretching both inside and outside face). 4.1.6.3Resistance to heat Temperature:. Exposure time: 7 days. 4.1.7Resistance to oil, seawater, and detergent tes
47、ts 4.1.7.1Requirements Two membranes shall show no signs of any deterioration when tested for resistance to oil, seawater and detergent as specified in 4.1.7.2 to 4.1.7.4. 4.1.7.2Surface resistance to oil Temperature:to. Type of oil: ASTM Oil No. 1 or No. 5, or ISO Oil No. 1. Exposure time:on each s
48、ide. 4.1.7.3Resistance to seawater Two membranes shall be immersed in asodium chloride solution attofor a period of 7 days. 4.1.7.4Resistance to detergents Two membranes shall be immersed in at least three different typical ship detergent solutions attofor a period of 7 days. 4.2Performance test 4.2
49、.1This test shall be performed using the smallest and the largest liferafts, or the EPIRB, with which the hydrostatic release unit may be used. If the occupant range between the smallest and largest liferaft exceeds 25 persons, the intermediate-size liferaft shall also be tested. In the case of a liferaft, place a liferaft horizontally into a rack with its painter line and the h