Section 23(5) in The Merchant Shipping (Crew Accommodation) Rules, 1960
(5)Tee wash-basins shall be made of vitreous china or other martial having a smooth and impervious surface not likely to crack, flake or become corroded. Every wash-basin provided in a passenger ship, being basin fitted with hot and cold fresh-water taps, shall have a capacity of at least 4.55 liters. Every other wash-basin provided in compliance with the rule shall have a capacity of at least 6.82 liters. The capacity of wash-basins shall be measured for the purpose of this sub-rule to a level at least 3.75 centimetres below the rim of the bowl.
