Advanced Gas Blender

Are you ready to progress on as a Gas Blender? The TDI Advanced Gas Blender course picks up where you left off in the previous sequence in training, the TDI Nitrox Gas Blender course.

After successful completion of the TDI Advanced Gas Blender course, you will be able to engage in the blending of oxygen and helium based gases. The objective of this course is to train candidates in the proper procedures needed for the preparation and blending of high quality nitrox and trimix gases for use in technical diving. The TDI Advanced Gas Blender course will take you through this process in an easy-to-understand format.

Who this course is for: Whether you’re a dive shop employee wanting to learn the proper procedures for advanced gas blending or a diver interested in the process of advanced level blending, this course will give you an in-depth, behind the scenes perspective on how your cylinder goes from empty to full of nitrox or trimix gases.

Course prerequisites (these requirements must be met prior to commencement of training):

  • Minimum age 18
  • Provide proof of certification as a TDI Nitrox Gas Blender or equivalent

What you can expect to learn:

The TDI Advanced Gas Blender course takes an in-depth look at all of the following and more!

  • The Responsibility of the Gas Blender
  • Gases of diving
    • Air
    • Oxygen
    • Nitrogen
  • Oxygen handling
  • Oxygen hazards
  • Causes and prevention of oxygen fire
  • Oxygen system design
  • Local regulations for gas blending and handling
  • Gas production equipment
    • Compressors
    • Cylinders
    • Filtration systems
    • Analog gauges
  • Mixing techniques
    • General considerations
    • Continuous blending systems
    • De-nitrogenated air systems
    • Pre-mix system
    • Partial pressure blending mathematics
  • Oxygen analysis
    • Procedures
    • Oxygen analyzers
  • Cylinder handling and sign out

What’s in it for you?

Upon successful completion of this course, graduates may engage in the blending of nitrox gases, without direct supervision of an Instructor.

TDI Advanced Nitrox Gas Blender minimum certification requirements:

  • Satisfactorily complete the TDI Advanced Gas Blender course written examination with an 80% passing grade, followed by 100% remediation by the Instructor
  • Candidates must successfully blend, and analyze, 5 nitrox cylinders and 3 trimix cylinders
  • Demonstrate proficiency in blending, and analysis, of nitrox and trimix gases

How to take this course:

Gas Blender Articles

  How To: Label Your Nitrox Tank
  Don’t Trust Your Gas Blender – Analyze Every Tank
  Garage Days Revisited
  Choosing the Best Decompression Gas
  Calculating Gas Mixes, a Simplified Guide