Ships and marine technology - Pilot ladders
1 Scope
This International Standard specifies requirements for a ship's pilot ladder which is provided for a pilot to embark and disembark safely along a vertical portion of a ship's hull. This international standard is applicable to merchant ships which embark and disembark maritime pilots with the ship underway. National maritime safety administrations are urged to accept ladders complying with this standard on their ships, as being in full compliance with the requirements of the 1974 International Convention for the Safety of Life at Sea (SOLAS).
2 Normative reference(s)
The following normative documents contain 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 this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards.
ISO 1181, Three-or-four strand manila and sisal ropes
ISO 1461, Metallic coatings - Hot dip galvanized coatings on fabricated ferrous products - Requirements
ASTM D 1435, Outdoor Weathering of Plastics
3 Materials
3.1 Each wooden part shall be made of hardwood (ash, oak, elm, beech or teak) free from knots.
3.2 Each side rope shall be mildew-resistant manila rope meeting ISO 1181, Quality 1, or a spun dacron polyester rope with a polypropylene core of a color that contrasts with the spun dacron. Each side rope shall have a breaking strength of at least 24 kN, and a nominal diameter of 20 mm (64 mm circumference). Altemative side ropes of synthetic material may be used if they：
- meet the breaking strength and size requirements of this clause;
- are at least as resistant to elongation under load as the standard ropes described in this clause;
- have an exterior surface suitable for grasping with bare hands, similar to manila or spun dacron; and
- provide a visual indication of excessive wear, similar to the spun dacron/polypropylene construction described in this clause.
