318(1)This section does not apply to a diver using SCUBA.
318(2)A diving supervisor shall ensure that a diver engaged in an underwater diving operation has
(a)
a sufficient amount of an appropriate breathing mixture, including a reserve supply two and one-half times greater than that required for the operation,
(b)
suitable diving plant and equipment for supplying the breathing mixture to the diver at a proper temperature, pressure and flow rate,
(c)
an additional reserve supply of the appropriate breathing mixture sufficient for seventy-two hours duration with necessary diving plant and equipment when a submersible compression chamber is being used, and
(d)
an appropriate breathing mixture in the bail-out system carried by the diver.
318(3)An employer shall provide and a diving supervisor shall ensure that there is an appropriate breathing mixture in a quantity sufficient for the time needed by a stand-by diver to reach the submerged diver in the event of an emergency and for them to
(a)
return to the surface and carry out the appropriate decompression procedures during the return, or
(b)
return to a submersible compression chamber and then to surface in the chamber and start the appropriate decompression procedures at the surface.
318(4)A diving supervisor shall ensure that a breathing mixture meets the air composition and air purity standards prescribed in clause 3.8 of CSA standard CAN/CSA Z275.2-92, “Occupational Safety Code for Diving Operations”.
318(5)A diving supervisor shall ensure that
(a)
breathing air supplied to a diver meets the requirements of CSA standard CAN3-Z180.1-M85, “Compressed Breathing Air and Systems”, and
(b)
breathing gas or air is discharged through adequate filters into a tank or receiver of suitable volume.
318(6)A diving supervisor shall ensure that when a mixed gas is used, the decompression schedule followed is appropriate for the mixed gas used.
318(1)This section does not apply to a diver using SCUBA.
318(2)A diving supervisor shall ensure that a diver engaged in an underwater diving operation has
(a)
a sufficient amount of an appropriate breathing mixture, including a reserve supply two and one-half times greater than that required for the operation,
(b)
suitable diving plant and equipment for supplying the breathing mixture to the diver at a proper temperature, pressure and flow rate,
(c)
an additional reserve supply of the appropriate breathing mixture sufficient for seventy-two hours duration with necessary diving plant and equipment when a submersible compression chamber is being used, and
(d)
an appropriate breathing mixture in the bail-out system carried by the diver.
318(3)An employer shall provide and a diving supervisor shall ensure that there is an appropriate breathing mixture in a quantity sufficient for the time needed by a stand-by diver to reach the submerged diver in the event of an emergency and for them to
(a)
return to the surface and carry out the appropriate decompression procedures during the return, or
(b)
return to a submersible compression chamber and then to surface in the chamber and start the appropriate decompression procedures at the surface.
318(4)A diving supervisor shall ensure that a breathing mixture meets the air composition and air purity standards prescribed in clause 3.8 of CSA standard CAN/CSA Z275.2-92, “Occupational Safety Code for Diving Operations”.
318(5)A diving supervisor shall ensure that
(a)
breathing air supplied to a diver meets the requirements of CSA standard CAN3-Z180.1-M85, “Compressed Breathing Air and Systems”, and
(b)
breathing gas or air is discharged through adequate filters into a tank or receiver of suitable volume.
318(6)A diving supervisor shall ensure that when a mixed gas is used, the decompression schedule followed is appropriate for the mixed gas used.