Section 71B(1)(b) in Maharashtra Factories Rules, 1963
(b)Every bucket provided under this sub-rule shall-(i)conform to appropriate Indian Standard Specification,(ii)be kept in a position approved by the Inspector and shall be used for no other purpose than fire extinguishing, and(iii)at all times be kept full of water but if the principal fire risk arises from inflammable liquid or other substances where water cannot be used, it shall be kept full of clean fine dry sand, stone dust or other inert material: