Photo by U.S. Navy — Navy Diver 2nd Class Brian Williams · Public domain (work of the U.S. federal government)
Advanced Gas Blending
Surface-based technical skills course for dive facility staff. Extends gas blending expertise from nitrox into trimix and custom mixtures via partial-pressure and continuous blending methods. Teaches gas analysis, helium handling, and safety procedures for personnel responsible for mixing gas at shops and fill stations. Not an in-water certification.
Prerequisites
TDI Nitrox Gas Blender; Minimum age 18; No minimum logged dives
Standards
What a diver must demonstrate to pass this course — not always published by the certifying agency.
Competency in: trimix formulation calculations, MOD and best-mix computations, partial-pressure and continuous blending method execution, gas analysis with multi-component mixtures, oxygen/helium safety procedures
Instructors Teaching This Course
United States
Egypt
Malta
Philippines
Mexico
Thailand
Dive Centres Offering This Course
United States
Egypt
Mexico
Malta
Philippines
Indonesia
We're still building out the directory country by country, so this list isn't every instructor or dive centre teaching it in the world — more locations are coming soon.
Common questions about TDI Advanced Gas Blending
What are the prerequisites for TDI Advanced Gas Blending?
TDI's standards require: TDI Nitrox Gas Blender; Minimum age 18; No minimum logged dives.
What is the minimum age for TDI Advanced Gas Blending?
TDI's standards state: Minimum age 18.
What does TDI Advanced Gas Blending training involve?
According to TDI's published standards: Competency in: trimix formulation calculations, MOD and best-mix computations, partial-pressure and continuous blending method execution, gas analysis with multi-component mixtures, oxygen/helium safety procedures.
Where can I take TDI Advanced Gas Blending?
83 dive centres and 137 instructors in the TecDiveTools directory teach TDI Advanced Gas Blending across 7 countries, most in the United States, Egypt, Malta and the Philippines. Each is listed further up this page.