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Nitrox / Tri-Mix Gas Blender
 Purpose
The IANTD Nitrox and Tri-Mix Gas Blender courses are designed to train qualified candidates to become competent in mixed gas blending techniques and equipment preparation for use with oxygen. Although two separate certifications, these courses may be taken simultaneously upon request.
Prerequisites
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Must meet the IANTD General Course Prerequisites
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Must be employed by a dive facility or be Advanced Nitrox certified and have a need to become a Gas Blender
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Must be recommended by an IANTD Instructor or facility
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In order to attend the Tri-Mix Gas Blender program student must be qualified as a Nitrox Gas Blender. Both programs may be taken consecutively
Training Materials
IANTD Gas Blending Student Manual and Workbook
Duration
The IANTD Nitrox Gas Blender course includes six hours of academics generally taught in two three hour sessions as well as three hours of hands-on gas blending of Nitrox gas mixtures.
The IANTD Tri-Mix Gas Blender course includes an additional three hours of academics as well as three hours of hands-on gas blending Tri-Mix gas mixtures.
 Course Content
The IANTD Nitrox and Tri-Mix Gas Blender courses cumatively include a minimum of fifteen hours of instruction designed to train students to become competent in mixed gas blending techniques and equipment preparation for use with oxygen. Subjects will include operational concerns, blending standards, gas blending procedures, gas blending theory, system design and oxygen cleaning.
Academic Topics
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IANTD organization
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Course Standards and Procedures
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Course completion requirements
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Gas blending history
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Gas blending theory
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Fire prevention
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System design
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Blending standards
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Labeling and analyzing
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Nitrox blending
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Tri-Mix and Heliox blending
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Oxygen cleaning
Course Limits
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