Conditions for teaching trimix or heliox diving in the natural environment
SPACES |
MINIMUM DIVER SKILLS |
SKILLS |
MAXIMUM NUMBER OF DIVERS (not including the person supervising the group) |
0 to 40 metres |
PE-40 + PN-C in training for PTH-40 skills |
E-3 + PTH-70 |
4 |
0 to 70 metres |
PE-60 + PTH-40 in training towards PTH-70 skills |
E-4 + PTH-120 |
4 |
Space from 0 to 80 metres |
PE-60 + PTH-70 in training towards PTH-120 skills |
E-4 + PTH-120 |
4 |