Introduction

This course provides the training required to allow candidates to competently and safely blend Nitrox gas. The objective of this course is to train candidates in the proper techniques, equipment requirements and hazards involved in blending Nitrox gases for recreational scuba.

Qualifications of Graduates

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

Student Pre-Requisites

The student must:

1. Be a minimum age of eighteen (18).

Required Subject Areas

The TDI Nitrox Gas Blending Manual is mandatory for use during this course but instructors may use any additional text or materials that they feel help present these topics.

1. The Responsibility of the Gas Blender.
2. Gases of Diving
a. Air
b. Oxygen
c. Nitrogen
3. Oxygen Handling
a. Oxygen hazards.
b. Causes and prevention of oxygen fire.
c. Oxygen system design.
d. Local regulations for gas blending and handling.
4. Gas Production Equipment
a. Compressors.
b. Cylinders.
c. Filtration systems.
d. Analog gauges.
5. Mixing Techniques
a. General Considerations.
b. Continuous blending systems.
c. De-nitrogenated air systems.
d. Pre-mix systems.
e. Partial pressure blending mathematics.
6. Oxygen Analysis
a. Procedures.
b. Oxygen analyzers.
7. Cylinder Handling and Sign Out.

Required Skill Performance And Graduation Requirements

In order to complete this course, students must:

1. Candidates must successfully blend and analyze five (5) cylinders of Nitrox gas.
2. Satisfactorily complete the TDI Nitrox Gas Blender written examination.
3. Demonstrate understanding of Nitrox blending and oxygen analysis

COST $250.00

A Minimum of $100.00 is required when booking