ISO-5489-2008.pdf

. Reference number ISO 5489:2008(E) © ISO 2008 INTERNATIONAL STANDARD ISO 5489 Third edition 2008-03-01 Ships and marine technology Embarkation ladders Navires et technologie marine Échelles d'embarcation Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 02:23:08 MDT -,-,- ISO 5489:2008(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's 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. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable 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. COPYRIGHT PROTECTED DOCUMENT © ISO 2008 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 ISO's 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 2008 All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 02:23:08 MDT -,-,- ISO 5489:2008(E) © ISO 2008 All rights reserved iii Contents Page Foreword iv Introduction v 1 Scope 1 2 Normative references1 3 Materials .1 3.1 Wooden parts.1 3.2 Side ropes.1 3.3 Metallic materials.2 3.4 Mechanical fastening devices2 3.5 Plastic materials.2 3.6 Quality of materials2 3.7 Rope seizing.2 4 Construction.2 5 Testing for approval 6 6 Designation 8 7 Marking.9 8 Production tests and inspections9 9 Maintenance.9 Annex A (informative) Recommended production tests and inspections 10 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 02:23:08 MDT No reproduction or networking permitted without license from IHS ISO 5489:2008(E) iv © ISO 2008 All rights reserved 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 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 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 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 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. ISO 5489 was prepared by Technical Committee ISO/TC 8, Ships and marine technology, Subcommittee SC 1, Lifesaving and fire protection. This third edition cancels and replaces the second edition (ISO 5489:1986) of which it constitutes a complete revision in order to take into account new designs and manufacturing methods for embarkation ladders which have entered the market since 1986. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 02:23:08 MDT -,-,- ISO 5489:2008(E) © ISO 2008 All rights reserved v Introduction This International Standard is intended to supplement existing International Maritime Organization (IMO) requirements for embarkation ladders. Since IMO instruments do not include specific requirements for prototype testing of embarkation ladders for approval, those tests included in this International Standard are in excess of the existing IMO requirements. The inclusion of these tests was considered necessary in order to provide a means of ensuring conformance of embarkation ladders with the performance requirements prescribed in IMO instruments and in this International Standard. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 02:23:08 MDT No reproduction or networking permitted without license from IHS Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 02:23:08 MDT -,-,- INTERNATIONAL STANDARD ISO 5489:2008(E) © ISO 2008 All rights reserved 1 Ships and marine technology Embarkation ladders 1 Scope This International Standard specifies requirements for a ships embarkation ladder that is provided to enable safe embarkation of waterborne survival craft along a vertical portion of the ship's hull. It is applicable to merchant ships required to carry embarkation ladders under Chapter III of the 1974 International Convention for the Safety of Life at Sea (SOLAS), as amended. National maritime safety administrations are urged to accept ladders complying with this International Standard on their ships, as complying fully with the requirements of SOLAS. 2 Normative references 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 209-1:1989, Wrought aluminium and aluminium alloys Chemical composition and forms of products Part 1: Chemical composition ISO 877:1994, Plastics Methods of exposure to direct weathering, to weathering using glass-filtered daylight, and to intensified weathering by daylight using Fresnel mirrors ISO 1461:1999, Hot dip galvanized coatings on fabricated iron and steel articles Specifications and test methods 3 Materials 3.1 Wooden parts Each wooden part shall be made of a hardwood (e.g. ash, oak, elm, beech, teak or apitong) free from knots. 3.2 Side ropes 3.2.1 Each side rope shall be mildew-resistant manila rope or a spun thermoset polyester rope with a polypropylene core of a colour that contrasts with the spun polyester. Each side rope shall have a breaking strength of at least 24 kN, and a nominal diameter of 18 mm (57 mm circumference). 3.2.2 Alternative side ropes of synthetic material may be used if they: a) meet the breaking strength and size requirements of 3.2.1; b) are at least as resistant to elongation under load as the standard ropes described in 3.2.1; c) have an exterior surface suitable for grasping with bare hands, similar to manila or spun polyester; d) are of a thermosetting polymer, resistant to deterioration from ultraviolet light; e) provide a visual indication of excessive wear, similar to the spun polyester/polypropylene construction described in 3.2.1. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 02:23:08 MDT -,-,- ISO 5489:2008(E) 2 © ISO 2008 All rights reserved 3.3 Metallic materials 3.3.1 Each metal fastener shall be made of a material which is inherently corrosion-resistant, or treated to be corrosion-resistant. 3.3.2 Each ferrous metal part that is not of stainless steel, shall be coated in accordance with ISO 1461. 3.3.3 Each stainless steel part shall be of a marine grade alloy with a corrosion resistance at least equal to grade 3161). 3.3.4 Each aluminium part shall be 5254 or 5652 alloy, or other grade containing not more than 0,06 % copper, in accordance with ISO 209-1:1989. 3.3.5 Metals in contact with each other shall be galvanically compatible or insulated to prevent galvanic corrosion in a marine environment. 3.4 Mechanical fastening devices Each mechanical fastening device securing a part of a ladder shall have a locking mechanism to prevent the device from loosening. 3.5 Plastic materials Each plastic material shall be of a type that retains at least 30 % of its original tensile strength and at least 80 % of its original impact strength when subjected to the one year outdoor weathering test described in Method A of ISO 877:1994. 3.6 Quality of materials Each part of a ladder shall be free of splinters, burrs, sharp edges, corners, projections or other defects that could injure a person using the ladder. 3.7 Rope seizing Seizing, if used, shall consist of two- or three-ply marline of minimum breaking strength 800 N, or other suitable material of equivalent strength. 4 Construction 4.1 Each ladder shall have two side ropes on each side. Ladders may also be constructed as three-string ladders with a third set of ropes in the middle of the ladder as illustrated in Figure 1. In a three-string ladder, the third set of ropes shall meet the same requirements as the side ropes. Each step in the ladder shall be supported by each side rope. 1) See Iron b) not be painted or otherwise coated or covered. 4.3 Unless a special arrangement is needed for a custom installation, the ends of the side ropes shall be finished as follows. a) The top end of one or both of the side ropes on each side shall terminate just above the top step in a single eye splice or thimble large enough to accommodate at least two passes of side rope. b) The top end of one side rope on each side of the ladder shall extend at least 3 m beyond the top ladder step, or an extension service rope shall be fitted to each side rope eye splice or thimble by means of an eye splice or shackle, as shown in Figure 2. The diameter of an extension service rope shall be at least the diameter of the side ropes. c) The side ropes shall not have fittings or form loops at the bottom of the ladder that can be used to attach additional ladder sections or tripping lines. d) The ends of each side rope which do not terminate in a splice or fitting, shall be served or otherwise treated to prevent fraying. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 02:23:08 MDT -,-,- ISO 5489:2008(E) 4 © ISO 2008 All rights reserved Dimensions in millimetres Key 1 extension service rope 2 rope seizing (typical) 3 step fixture 4 mechanical clamping device 5 step Figure 2 Alternative extension service rope arrangements at top of ladder 4.4 Each side rope shall pass through a hole in each step. If the hole is in the form of a slot, the slot shall be in the longer edges of the steps. The centre of each hole shall be at least 50 mm from the end of the step. Alternative arrangements are shown in Figure 3. 4.5 Each pair of side ropes shall be secured together both above and below each step with a mechanical clamping device or seizing method which holds each step level when the ladder is hanging freely. Alternative arrangements are shown in Figure 4. 4.6 If a mechanical clamping device is used to secure the side ropes and hold the step in place, the device shall not extend above or below the step surfaces by more than a distance equal to 0,7 × W (where W is the width of the step), so that the step is not prevented from rolling if caught between a boat and the hull of the ship. See Figure 4. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 02:23:08 MDT -,-,- ISO 5489:2008(E) © ISO 2008 All rights reserved 5 Dimensions in millimetres Key 1 grooved, patterned or textured non-skid surface area Figure 3 Typical ladder step showing alternative hole and slot designs for side ropes a) mechanical clamps b) seizings and step fixtures Key 1 rope seizing (typical) 2 step fixture a Typical value. Figure 4 Alternate ladder constructions using mechanical clamps and seizings and step fixtures Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 02:23:08 MDT -,-,- ISO 5489:2008(E) 6 © ISO 2008 All rights reserved 4.7 If a seizing method is used to secure steps and side ropes, a step fixture shall be used above and below the step. The step fixture shall be designed to lead and support the side ropes from the step to the point above or below the step where the side ropes are seized together. The step fixture shall be designed so that it stays in place when the ladder is rolled or the step is turned. 4.8 The clear space between the side ropes on one side of the ladder and those on the other side shall be at least 400 mm. This distance shall be uniform throughout the length of the ladder. See Figure 3. 4.9 Each side rope shall be arranged so that, when the ladder is in use along the vertical hull of a ship, the side rope cannot come into contact with the ships side. 4.10 The spacing from the top of one step to the top of the next step shall be 330 mm ± 20 mm, and shall be uniform throughout the length of the ladder. See Figure 4. 4.11 Each step shall be of one-piece construction, of either wood or resilient plastic or rubber material complying with the applicable requirements of Clause 3. 4.12 The top face of each step shall have a rectangular surface that is at least 115 mm wide with a surface that is grooved, patterned or of a textured non-skid type. The step surface shall be designed so that it does not retain water. A textured non-skid surface shall be moulded into the