OVERVIEW
This
is course is to provide the diver with the information necessary to
utilize EANx as a breathing medium. The course may be taught as a
stand-alone specialty course to certified divers or the knowledge
and skills training may be integrated into the NAUI Scuba Diver
course.
QUALIFICATIONS OF
GRADUATES
Upon
successful completion of this course, graduates are considered
competent to utilize EANx in open water diving activities without
direct supervision, provided the diving activities and the areas
dived approximate those of training.
COURSE POLICIES
- Dives
shall not exceed a depth of 130 fsw (40 msw) or 1.6 atm PO2 ,
whichever is less. No planned dives requiring actual
decompression stops on the appropriate EANx tables are to be
permitted. (Maximum PO2 of 1.4 is to be taught with
1.5-1.6 as contingencies.)
- This
course may be taught as a NAUI Recognition Program if the open
water training dives are not included. Recognition may be
upgraded to EANx Diver certification upon completion (within six
months) of the required dives under supervision of a NAUI EANx
Instructor.
SKILL
REQUIREMENTS
At
least two dives are to made using EANx, one of which is to be a
repetitive dive. The student is to analyze his or her own breathing
mixture and to plan and safely execute each dive.
ACADEMIC
REQUIREMENTS
The
following topics are to be covered: history of nitrox as a breathing
gas; Dalton’s law of partial pressures; physiology of oxygen and
nitrogen; depth limits, advantages, disadvantages and risks of
nitrox; oxygen toxicity; hazards and precautions of handling oxygen;
the concept of Equivalent Air Depth; use of EANx with Standard Air
Dive Tables; common gas mixing procedures; and gas analyzing
procedures.
PREREQUISITES FOR
ENTERING THE COURSE
- Age.
Minimum is 15 years.
- Certification:
NAUI Scuba Diver certification or the equivalent is
required unless combined with the Scuba Diver course. The
instructor is to ensure adequate student knowledge and
capability before any open water training and shall use skill or
other evaluations to do so.
|