Section 13

A factory shall not, while work is carried on, be so overcrowded as to cause risk of injury to the health of the persons employed therein.

Without prejudice to the generality of subsection (1), a factory shall be deemed to be so overcrowded if the number of persons employed at a time in any workroom is such that the amount of cubic space allowed for every person employed in the room is less than 11½ cubic metres.

Every workroom shall be not less than 3 metres in height measured from the floor to the lowest point of the ceiling or, where there is no ceiling, to the lowest point of the roofing material.

If the Chief Inspector is satisfied that owing to the special conditions under which the work is carried on in any workroom the application of subsections (2) and (3) to that workroom would be inappropriate or unnecessary, he may by certificate in writing exempt the workroom from those provisions subject to any conditions specified in the certificate.

In calculating for the purposes of this section the amount of cubic space in any room, no space more than 4 metres from the floor shall be taken into account, and where a room contains a gallery, the gallery shall be treated for the purposes of this section as if it were partitioned off from the remainder of the room and formed a separate room.