Nova Scotia Offshore Area Petroleum Diving Regulations

48 (1) No supervisor shall conduct a diving operation in which

• (a) an oxygen supply system is used unless the oxygen supply system meets the requirements set out in section 19;

• (b) a breathing mixture supply system is used unless the breathing mixture supply system meets the requirements set out in sections 20 and 21; and

• (c) an analyser is used to determine the relative levels of oxygen and carbon dioxide during any dive that is part of the diving operation unless the analyser is recalibrated in accordance with the manufacturer’s instructions for that analyser prior to the dive.

(2) Where an analyser is used continuously in a diving operation to determine the relative levels of oxygen and carbon dioxide during any dive that is part of the diving operation, the supervisor of the dive shall ensure that the analyser is recalibrated in accordance with the manufacturer’s instructions for that analyser, where practicable, every two hours.

(3) No diving supervisor shall, in a diving operation supervised by the supervisor, use or permit to be used an on-line gas blender or a diver’s gas recovery system unless throughout the period that the blender or the diver’s gas recovery system is in use the requirements of section 21 are complied with.