Section 66(9)(k) in The Punjab Factory Rules, 1952
(k)In case of those factories where high hazard materials are stored or used, the travel distance to the exit shall not exceed twenty-two-and-a-half metres and there shall be at least two ways of escape from every room, however small except toilet rooms, so located that the points of access thereto, are out of, or suitably shielded from areas of high hazard.