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Tec 45 Instructor & Tec 45 Trimix Instructor; ... (DSAT) is the development arm for the Recreational Dive Planner and PADI's Tec-Rec program. [56]
Technical diver during a decompression stop. There is some professional disagreement as to what exactly technical diving encompasses. [10] [11] [12] It is an arbitrary distinction, and the line has been drawn in different places by different organisations, and has shifted on a few occasions.
Although theoretically trimix can be blended with almost any combination of helium and oxygen, a number of "standard" mixes have evolved (such as 21/35, 18/45 and 15/55—see Naming conventions). Most of these mixes originated from starting by decanting a given pressure of helium into an empty cylinder, and then topping up the mix with 32% nitrox.
PADI Professional Association of Diving Instructors – Recreational diver training and certification agency [40] Pure Apnea - Specialising in both sports and recreational freediving. Currently the only freedive education system separating competitive from recreational freediving (www.pureapnea.com)
TDI was founded in 1992 by Mitch Skaggs, Bret Gilliam and David Sipperly [3] after a split away from International Association of Nitrox and Technical Divers (IANTD) in 1993.
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The Professional Association of Diving Instructors (PADI) use the formula BWRAF to represent the following checks: [6] [4] B - BCD Function of the BCD is tested by operating inflation and deflation valves to ensure that the BCD can be filled and can release air.
Diving stage used to control ascents and descents of surface-supplied divers. In underwater diving, ascending and descending is done using strict protocols to avoid problems caused by the changes in ambient pressure and the hazards of obstacles near the surface such as collision with vessels.