ianr33
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Blackwood:
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IANTD Advanced Nitrox
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IANTD Advanced EANx Diver
A. Purpose
1. This Program is designed to extend the diver’s knowledge in the use of EANx for Sport diving. It further develops diving skills
and provides a greater understanding of the EANx concept of diving.
2. The Program employs EANx mixes from 21% to a maximum of 50% oxygen.
3. This program qualifies divers to do dive to 140 fsw (42 msw) and do decompression stops required dives for up to 15 minutes
using EAN 50 as a decompression gas
B. Prerequisites
1. Must be qualified as an IANTD EANx Diver and IANTD Deep Diver with proof of a minimum of 25 logged dives or sufficient
experience to satisfy the instructor that the student has the ability and knowledge to continue into this level of training.
2. Must be a minimum of 15 years of age with a parent or guardian authorization, or a minimum of 18 years of age without
guardian approval.
C. Texts
1. IANTD Advanced EANx Student Manual and Workbook, or equivalent text(s) approved in writing by the Board of Directors
(written approval will be issued by IAND, Inc./IANTD World Headquarters).
D. Program Content
1. All Lecture and theory material must be completed.
2. This Program must include a minimum of 120 minutes of OW bottom time completed within 4 dives, 2 of which must be to
depths between 100 fsw (30 msw) and 140 fsw (42 msw). If combined with a Deep Diver Program, the total dive time for both
Programs must include a minimum of 160 minutes completed within 6 or more dives. Even if the time and skill requirements
are met within fewer than 6 dives, the minimum 6 dives must be made. If combined with a Deep Diver Program 3 dives must be
made to depths between 100 fsw (30 msw) and 140 fsw (42 msw).
3. Students are taught the use of EANx mixtures from 21% to a maximum of 40% oxygen for diving. EANx mixtures in the range
of 41% to a maximum of 50% oxygen are used to teach the fundamentals of safety and decompression stops.
E. Equipment Requirements
1. A safety or decompression gas cylinder (if used) rigged as either a pony or stage cylinder. Gas cylinders must be oxygen clean
and oxygen serviceable where needed.
F. Program Limits
1. There may be no more than 4 students per Instructor. This ratio may be increased by 2 students for each assisting IANTD
Divemaster, up to a maximum of 8 students with 2 IANTD Divemasters per class session.
2. No dives may be conducted to depths greater than 140 fsw (42 msw).
3. All dives must be conducted using EANx (maximum 40% oxygen). A higher EANx (maximum 50% oxygen) may be used at the
decompression or safety stops.
4. All appropriate safety or required decompression stops must be performed.
5. Decompression stops are limited to a maximum of 15 minutes.
G. Water Skills Development
1. A confined water session must be completed before conducting any OW dives.
2. Demonstrate proficiency in a variety of dive techniques and employ precision buoyancy control.
a. Swim in a simulated out-of-air situation (without breathing, and exhaling slowly) without a mask for a distance of at least 45
feet (15 meters), and commence gas sharing; or appropriate Rebreather gas management drill for out-of air diver. While
gas sharing, swim for 3 minutes, then replace and clear mask.
3. On an OW dive, demonstrate dive planning abilities, especially for avoiding CNS exposure risk.
4. Perform a gas sharing ascent using the alternate second stage.
5. Perform valve shutdowns on each dive.
6. Deploy lift bag 2 times, using it as an ascent platform.
7. Demonstrate a safe attitude and awareness to the Instructor’s satisfaction.
8. Remove and replace tank and BCD at a depth greater than 20 fsw (6 msw).
A. Purpose
1. This Program is designed to extend the diver’s knowledge in the use of EANx for Sport diving. It further develops diving skills
and provides a greater understanding of the EANx concept of diving.
2. The Program employs EANx mixes from 21% to a maximum of 50% oxygen.
3. This program qualifies divers to do dive to 140 fsw (42 msw) and do decompression stops required dives for up to 15 minutes
using EAN 50 as a decompression gas
B. Prerequisites
1. Must be qualified as an IANTD EANx Diver and IANTD Deep Diver with proof of a minimum of 25 logged dives or sufficient
experience to satisfy the instructor that the student has the ability and knowledge to continue into this level of training.
2. Must be a minimum of 15 years of age with a parent or guardian authorization, or a minimum of 18 years of age without
guardian approval.
C. Texts
1. IANTD Advanced EANx Student Manual and Workbook, or equivalent text(s) approved in writing by the Board of Directors
(written approval will be issued by IAND, Inc./IANTD World Headquarters).
D. Program Content
1. All Lecture and theory material must be completed.
2. This Program must include a minimum of 120 minutes of OW bottom time completed within 4 dives, 2 of which must be to
depths between 100 fsw (30 msw) and 140 fsw (42 msw). If combined with a Deep Diver Program, the total dive time for both
Programs must include a minimum of 160 minutes completed within 6 or more dives. Even if the time and skill requirements
are met within fewer than 6 dives, the minimum 6 dives must be made. If combined with a Deep Diver Program 3 dives must be
made to depths between 100 fsw (30 msw) and 140 fsw (42 msw).
3. Students are taught the use of EANx mixtures from 21% to a maximum of 40% oxygen for diving. EANx mixtures in the range
of 41% to a maximum of 50% oxygen are used to teach the fundamentals of safety and decompression stops.
E. Equipment Requirements
1. A safety or decompression gas cylinder (if used) rigged as either a pony or stage cylinder. Gas cylinders must be oxygen clean
and oxygen serviceable where needed.
F. Program Limits
1. There may be no more than 4 students per Instructor. This ratio may be increased by 2 students for each assisting IANTD
Divemaster, up to a maximum of 8 students with 2 IANTD Divemasters per class session.
2. No dives may be conducted to depths greater than 140 fsw (42 msw).
3. All dives must be conducted using EANx (maximum 40% oxygen). A higher EANx (maximum 50% oxygen) may be used at the
decompression or safety stops.
4. All appropriate safety or required decompression stops must be performed.
5. Decompression stops are limited to a maximum of 15 minutes.
G. Water Skills Development
1. A confined water session must be completed before conducting any OW dives.
2. Demonstrate proficiency in a variety of dive techniques and employ precision buoyancy control.
a. Swim in a simulated out-of-air situation (without breathing, and exhaling slowly) without a mask for a distance of at least 45
feet (15 meters), and commence gas sharing; or appropriate Rebreather gas management drill for out-of air diver. While
gas sharing, swim for 3 minutes, then replace and clear mask.
3. On an OW dive, demonstrate dive planning abilities, especially for avoiding CNS exposure risk.
4. Perform a gas sharing ascent using the alternate second stage.
5. Perform valve shutdowns on each dive.
6. Deploy lift bag 2 times, using it as an ascent platform.
7. Demonstrate a safe attitude and awareness to the Instructor’s satisfaction.
8. Remove and replace tank and BCD at a depth greater than 20 fsw (6 msw).
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