3.3.5.3. Basements

(1)

A basement shall not be used for the storage, manufacture or handling of volatile solids, liquids or gases that generate explosive air-vapour mixtures or for processes that involve explosive dusts.

(2)

Entrances and exits to a basement and to rooms containing building services shall be separate from the remainder of the building in a building in which

(a)

the storage, manufacture or handling of volatile materials can generate explosive air-vapour mixtures, or

(b)

processes occur that produce explosive dusts.

(3)

Basements and rooms referred to in Sentence (2) shall be separated from the remainder of the building with a vapour-tight separation.