1、BRITISH STANDARD BS ISO 15734:2001 Ships and marine technology Hydrostatic release units ICS 47.020.99; 47.080 BS ISO 15734:2001 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 9 September 2003 BSI 9 September 2003 ISBN 0 580 42590 8 National
2、 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 SME/32, Ships and marine technology Steering, to Subcommittee SME/32/1, Ships and marine technology Lifesavin
3、g 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 Standards which implement international publications referred to in this document may be found in the BSI Catalog
4、ue 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 publication does not purport to include all the necessary provisions of a contract. Users are responsible for its corre
5、ct 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/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests info
6、rmed; 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, pages ii and iii, a blank page, pages 1 to 7 and a back cover. The BSI copyright notice displayed in this do
7、cument indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsINTERNATIONAL 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
8、 de largage hydrostatique BSISO15734:2001ISO :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 tyfepseca hwich are mededdeb era l
9、icdesne to dna tsniladel on teh moctupre epfrromign the ideti.gn In odgnidaolnw this file, raptise ccatpe trehien teh serilibisnopty fo ton fnirignign sebodA gnisnecil ilopcy. The ISO tneCral Sceterarita catpecs no libaility in this aera. ebodA si a trmedarak of Adebo Stsysme Irocntarop.de teDails o
10、f teh fostware prtcudos desu to crtaee tsih PFD feli nac be fdnuo ni the Glarene Info talerive to the f;eli teh PDF-taercnoi rapmateers weer tpodezimi for pritn.gni vErey cera sah eebn tkane to rusnee ttah the feli is tiusbael for ues by ISO mrebme seidob. In teh kilnuley evtne ttah a pborlme taleri
11、gn 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 tohppocoyign dna cimrfo,mli tiwt
12、uoh 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 BSISO15734:2001ISO 37511002:4)E( ISO 1002 Al
13、l rithgs rreseved 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 is normally carried out through ISO technical committees. Each member body interested in a
14、 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 part in the work. ISO collaborates closely with the International Electrotechnical Commissio
15、n (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an In
16、ternational 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 International Standard may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent ri
17、ghts. International Standard ISO 15734 was prepared by Technical Committee ISO/TC 8, Ships and marine technology, Subcommittee SC 1, Lifesaving and fire protection. BSISO15734:2001blank BSISO15734:2001ANRETNIITOLAN TSDNADRA ISO 37511002:4)E( ISO 1002 All rithgs rreseved 1 Ships and marine technology
18、 Hydrostatic release units 1 Scope 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 Position Indicating Radio Beacons (EPIRB s). Hydrostatic
19、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-Saving Appliances Code, as amended. 2 Normative ref
20、erence 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 not apply. However, parties to agreements based on th
21、is 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 of ISO and IEC maintain registers of currently vali
22、d International Standards. ISO 9227:1990, Corrosion tests in artificial atmospheres Salt spray tests. 3 General requirements 3.1 Construction A hydrostatic release unit used in the float-free arrangements of a survival craft or EPIRB shall be so constructed that the materials used are compatible so
23、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 prevent the accumulation of water in the hydrostatic
24、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 shall be corrosion-resistant and not affected by se
25、awater, oil or detergents, it can function properly throughout an air temperature range of to , it can function properly throughout a seawater temperature range of to , it can automatically release the float-free lifesaving appliance at a depth of not more than , and it cannot release prematurely wh
26、en seawater washes over the unit. 3.2 Markings 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 4m BSISO15734:2001ISO :43751(1002)E 2 ISO 1002 All rithgs rreseved the maximum-ca
27、pacity 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 the disposable type. 3.3 Servicing record plate If the unit is of a type which requires annual servicing, it shall be provided with a permanently attac
28、hed plate to maintain a record of servicing. 3.4 Operating and maintenance instructions Operating and maintenance instructions and information shall be provided in a clear and concise form in the appropriate language or languages and shall include the following: general description of the unit; inst
29、allation instructions; any on-board maintenance requirements; servicing requirements. 3.5 Weak link 3.5.1 Materials A weak link used in conjunction with 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
30、 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 ferrule, when made from a flexible wire. 3.5.2 Strength A weak link used in conjunction with a hydrostatic release unit in a float-free arrangement
31、of an inflatable liferaft shall be of sufficient strength to pull the painter out of the liferaft container, operate the liferaft inflation system, and break under a tensile force of between and . 4 Prototype tests 4.1 Technical tests 4.1.1 Testing sequence At least two prototype hydrostatic release
32、 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 cycling test (4.1.3). c) Submergence and manual release test (4.1.4). 1,8 kN 2,6 kN BSISO15734:2001ISO 37511002:4)E( ISO 1002 All rithgs rr
33、eseved 3 d) Strength test (4.1.5). e) Membrane-material technical tests (4.1.6). 4.1.2 Corrosion 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 of for without interruption. After comp
34、letion, the hydrostatic release units shall show no corrosion which could affect their efficient functioning, and shall then be subjected to the following tests, after which they shall continue to function efficiently. 4.1.3 Temperature tests 4.1.3.1 The hydrostatic release units shall be alternatel
35、y submitted to surrounding temperatures of and . These alternating half-cycles need not follow immediately after each other, and the following procedure is acceptable: a n h al f - cy cl ea t t ob ec om p le t edino ned a y; the units removed from the hot chamber and left exposed under normal room c
36、onditions until the next day; an half-cycle at to be completed in one day; the 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. 4.1.3.2 On completion, the release shall be capable of being rele
37、ased manually if it is designed for manual release. 4.1.3.3 Following the temperature cycling, as specified in 4.1.3.1, one hydrostatic release unit shall be taken from a stowage temperature of and shall operate in seawater at a temperature of . Another hydrostatic release unit shall be taken from a
38、 stowage temperature of and shall then operate in seawater at a temperature of . 4.1.4 Submergence and manual release test 4.1.4.1 Each 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
39、at a depth of between and . On completion of these tests and resetting, the hydrostatic 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 degradati
40、on. 4.1.4.2 On being opened up for inspection, the unit shall show no significant signs of corrosion or degradation which could affect its efficient functioning. 4.1.5 Strength test Each hydrostatic release unit, if intended to form part of the painter system of a liferaft, shall be subjected to a t
41、ensile load of at least for a period of . If the release is to be fitted to a liferaft approved 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. 4.1.6 Membrane-material tes
42、ts for temperature resistance 4.1.6.1 Requirements Two membranes shall show no visible signs of 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 8h 65 C 8h 30 C 30 C 1 C + 65 C + 30 C 1,5 m 4 m 10 kN 30 min 15 kN
43、BSISO15734:2001ISO :43751(1002)E 4 ISO 1002 All rithgs rreseved 4.1.6.2 Resistance to cold T e m p e r a t u r e : . Exposure time: . Flex testing: (stretching both inside and outside face). 4.1.6.3 Resistance to heat T e m p e r a t u r e : . Exposure time: 7 days. 4.1.7 Resistance to oil, seawater
44、, and detergent tests 4.1.7.1 Requirements 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. 4.1.7.2 Surface resistance to oil T e m p e r a t u r e : t o . T yp eo fo i l:AS TMO ilNo .1orNo .5 ,o rISO
45、O ilNo .1 . Exposure time: on each side. 4.1.7.3 Resistance to seawater Two membranes shall be immersed in a sodium chloride solution at to for a period of 7 days. 4.1.7.4 Resistance to detergents Two membranes shall be immersed in at least three different typical ship detergent solutions at to for
46、ape ri odo f7da ys . 4.2 Performance test 4.2.1 This 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 life
47、raft shall also be tested. In the case of a liferaft, place a liferaft horizontally into a rack with its painter line and the hydrostatic release unit arranged as fitted on board a ship. In the case of an EPIRB, install the EPIRB and the hydrostatic release unit on a rack, arranged as fitted on boar
48、d a ship. Attach sufficient weight to the rack to submerge the raft or EPIRB, then lower it into the water of depth at least in the orientations as specified in a) to d) (see Figure 1; liferaft only shown for clarity): a) Horizontally; b) Tilted and then with the hydrostatic release unit at the uppe
49、r side; 30 C 30 min 180 + 65 C +18 C2 0 C 3h 5% +18 C2 0 C +18 C2 0 C 5m 45 100 BSISO15734:2001ISO 37511002:4)E( ISO 1002 All rithgs rreseved 5 c) Tilted and then with the hydrostatic release unit at the lower side; d) Vertically. 4.2.2 Under each of these conditions, the hydrostatic release unit shall release the life
