Cleanliness of premises and plant
17. Every employer who undertakes work which exposes or is liable to expose his employees to asbestos shall ensure that—
(a)the premises, or those parts of the premises where that work is carried out, and the plant used in connection with that work are kept in a clean state; and
(b)where such work has been completed, the premises, or those parts of the premises where the work was carried out, are thoroughly cleaned.