Enriched
Air Nitrox - EANx
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.
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.
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.
Cost - $100.00 + Books & Cards ($50) - no dives are required for this certification