Section 31(15) in The Merchant Shipping (Crew Accommodation) Rules, 1960
(15)A wash-basin having a capacity of at least 6.82 litres shall be fitted in every permanent hospital. In ships of 5,000 tons or over a bath at least 1.35 metres in internal length shall be fitted in washing accommodation forming part of the hospital and adjacent to the hospital ward. The wash-basin and bath shall be made of or coated with hygienic and durable durable material having a smooth and impervious surface not likely to crack, flake or become corroded. They shall be fitted with an efficient and hygienic discharge system separate, if practicable, from any other discharge system separate, if practicable from any other discharge system in the ship and in particular the waste pipes shall be fitted in a manner which will facilitate cleaning. A scupper of at least 5.10 centimetres in diameter shall be fitted in the lowest part of any room (other than a ward) which contains such was-basin or bath. The Central Government may exempt any ship from the requirement of a bath in the permanent hospital, if it is satisfied that compliance therewith is unreasonable or impracticable in the circumstances.
