The Advanced Gas Blending Manual is the text-book literary assistant to the TDI Advanced Gas Blending certification course. This course will grant each student with an in-depth knowledge of various topics regarding the use, and preparation, of various diving gases used within the scuba environment. Detailed chapters include information on scuba gases, oxygen handling, system design, trimix and advanced gas blending, the physics behind gas blending, and finally cylinder sizes, mixing charts, and various necessary mathematical formulas.