UOGML Dive Manual - University of Guam Marine Laboratory

Dive Time-Total elapsed time measured in minutes from the time when the diver leaves the
surface in descent to the time that the diver returns to the surface.
Diver-An individual who uses apparatus which supplies breathing gas at ambient pressure.
Diver-in-training-An individual gaining experience and training in additional diving activities
under the supervision of a dive team member experienced in those activities.
Diving Control Board (DCB)-The group of individuals who act as the official representatives
of the UOG Marine Laboratory in matters concerning the scientific diving program.
Diving Safety Officer (DSO)-The individual responsible for the safe conduct of the scientific
diving program of the UOG Marine Laboratory.
Hyperbaric Chamber-See decompression chamber.
Hyperbaric Conditions-Pressure conditions in excess of normal atmospheric pressure at the
dive location.
Lead Diver-The certified scientific diver with experience and training to conduct the diving
operations.
No-Decompression Limits-The depth-time limits of the "no-decompression limits and
repetitive dive group designations table for no-decompression air dives" of the PADI recreational
dive tables.
Normal Ascent-An ascent made with an adequate air supply at a rate of 60 feet per minute or
less.
Pressure-Related Injury-An injury resulting from pressure disequilibrium within the body as
the result of hyperbaric exposure. Examples include: Decompression sickness, pneumothorax,
mediastinal emphysema, air embolism, subcutaneous emphysema, or ruptured eardrum.
Recompression Chamber-See decompression chamber.
Scientific Diving-Diving performed solely as a necessary part of a scientific, research, or
educational activity by employees whose sole purpose for diving is to perform scientific research
tasks.
Scuba Diving-A diving mode independent of surface supply in which the diver uses open
circuit, self-contained underwater breathing apparatus.
S.I.T.-Surface interval time, the period of time elapsed since the last dive.
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