Advanced Recreational Trimix Diver

IANTD Certification Courses - Technical Diving

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. It is also intended to supplement the skills of Recreational Trimix Divers.
2. The Program employs EANx mixes from 21% oxygen to a maximum of 1.5 PO2 combined with a Helium content that maintains an END no greater than 80 fsw (24 msw) may be used.
3. This program qualifies divers to dive to 160 fsw (48 msw) and perform decompression stops required dives up to 15 minutes.

Prerequisites

1. Must be qualified as an IANTD Recreational Trimix Diver or Nitrox Diver and IANTD Deep Diver with proof of a minimum of 30 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.

Program Content

1. All lectures completed with IANTD Course-specific Slides pertaining to the theory in the IANTD Advanced Recreational Trimix Diver Student Kit.
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 160 fsw (48 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 160 fsw (48 msw). All dives deeper than 80 fsw (24 msw) must be made on Recreational Trimix mixtures.
3. Students are taught the use of Recreational Trimix mixtures from 28% to a maximum of 40% oxygen and with the helium content having an END no greater than 80 fsw (24 msw) for diving. EANx mixtures of 1.5 PO2 oxygen should be used for safety and decompression stops.

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 160 fsw (48 msw). Adequate He must be used to provide an END no Greater than 80 fsw (24 msw)
3. All dives must be conducted using EANx or Trimix (maximum 40% oxygen) as a bottom mix. PO2's as high as 1.5 may be used at the decompression or safety stops.
4. All appropriate safety or required decompression stops must be performed.
5. Mandatory decompression stops are limited to a maximum of 15 minutes.