Hong Kong Regulations

FACTORIES AND INDUSTRIAL UNDERTAKINGS (WORK IN COMPRESSED AIR) REGULATIONS - REGULATION 17

Use of decant locks

Decanting may be carried out only- (L.N. 161 of 1978)

   (a)  where, because of lack of space, it is not practicable to provide a
        separate man-lock (in addition to the lock used for the passage of
        plant or material) as a means of egress from a working chamber to the
        open air;

   (b)  where persons require a decompression procedure lasting more than 20
        minutes and their only means of egress from a working chamber is
        through a 'blister' type of lock;

   (c)  under any conditions where, because of the numbers of persons involved
        and the inadequate size of the man-lock, the normal decompression
        procedure in Part II of the Third Schedule could be associated with
        delay that might be detrimental to the safety and health of those
        persons.