Article 109 Requirements for fire hoses, nozzles, etc
In every such vessel to which these Rules apply fire hoses provided in compliance with these Rules shall not exceed 18 metres in length. These hoses shall be made of closely woven flax canvas or other suitable material and shall be provided with couplings, branch-pipes and other necessary fittings, and with a plain nozzle in addition to any spray nozzle required by these Rules.
In every such vessel every fire hose, together with the tools and fittings necessary for its use, shall be kept in a conspicuous position near the hydrant or connections with which it is intended to be used.
In every such vessel—
fire pumps operated by power shall be provided with nozzles of 12 millimetres, 16 millimetres or 20 millimetres in diameter, or as near thereto in diameter as possible. Nozzles larger in diameter may be provided if the requirements of these Rules relating to the provision of water for fire-fighting purposes are otherwise met;
the diameter of the nozzles for machinery spaces and exterior locations shall be such as to obtain the maximum possible discharge from the minimum number of jets of water and at the pressure required by these Rules from the smallest fire pump permitted by Rule 107(3)(a) of these Rules;
provided that the diameter of the nozzles shall not be required to be greater than 20 millimetres;
the diameter of the nozzles for accommodation and service spaces shall not be required to be greater than 12 millimetres;
every spray nozzle shall be capable of producing a water spray suitable for extinguishing oil fires and shall be provided in addition to any plain nozzle required by paragraph (1) above;
provided that a dual-purpose nozzle capable of producing such a spray and a plain water jet may be provided as a substitute.