Hong Kong Regulations

FACTORIES AND INDUSTRIAL UNDERTAKINGS (WORK IN COMPRESSED AIR) REGULATIONS - REGULATION 16

Decant locks

PART IV

DECANT LOCKS

(1) A decant lock shall-

   (a)  be a double compartment lock similar to a medical lock so that any
        person taken ill during decompression may be individually
        recompressed;

   (b)  be capable of withstanding a pressure of not less than 10 pounds per
        square inch above the maximum pressure used or likely to be used in
        the working chamber at any time;

   (c)  be situated as near as possible to the man-lock;

   (d)  be protected from the weather and the sun; and

   (e)  be maintained, heated and ventilated in the same manner as a man-lock.

(2) Each compartment of a decant lock shall be provided with-

   (a)  exhaust valves that will enable accurate decompression to be carried
        out according to the Decompression Tables in the Third Schedule;

   (b)  a pressure recording gauge, which shall be accurate to within half a
        pound per square inch and the recording on the chart shall be as
        approved by the Commissioner;

   (c)  if a circular recording chart is used it shall rotate at a speed of
        not less than once in 4 hours. (L.N. 161 of 1978)