It is essential to be knowledgeable about the types of gas used and the mix ratios that are required for recreational trimix divers certification. Learn the basics of Normoxic, Hypoxic and Heliox diving and how to handle your equipment. It is also important to understand how to maintain your body position underwater. These are just a few of the requirements to obtain this certification. You will need to do several practical sessions in restricted water before you can get your card.
Normoxic
The IANTD Normoxic Trimix Diver course is a training course for divers who would like to dive up to 60 meters without breathing air. The course also includes theory and confined-water skill practice. In addition to theory, this course also includes four stage decompression dives. Students learn skills to deal with emergency situations during these dives. Students are eligible to receive the CCR trimix certification after completing the course.
Technical diver training could differentiate between the two levels. The normoxic trimix divers can begin their descent in a bottom mixture. A hypoxic trimix diver, on the other hand, must begin their descent in a travel mixture. The diver will need to switch gas mixtures during their first descent, which can make it more difficult. Hypoxic trimix divers may also need to be able to dive longer due to the greater variety of gases they use.
Hypoxic
The SSI Hypoxic Trimix Diver is one of the best technical diving courses. This course will teach advanced techniques and how to use multiple decompression gases systems. Students will also learn the dangers and hazards of technical diving and how to respond to emergency situations. Six dives are required to be equipped with anoxia-reducing equipment.
When breathing normal air, the content of oxygen is 20 percent to 21 percent. Minimum is 18%. At sea level, normal air can be breathed because the atmospheric pressure is approximately one bar. Divers must use a blend of travel mixes when diving in waters with less than 18% oxygen. This will enable them to breathe more deeply. Normal air will not be sufficient for a 100 meter dive. Hypoxic divers need to use travel mixes in order to compensate.
Heliox
Several myths about heliox and diving have arisen since the Hans Keller tragedy. Some were concerned at the slow decompression time of Helium. Other were worried about CNS consequences. These myths are fueled by the fact helium can be expensive and scarce. Hydrogen on the other hand is plentiful, inexpensive, and poses few toxicity concerns. Furthermore, hydrogen can be used safely at all depths.
The Navy Experimental Diving Unit is one of the earliest diving organizations to explore the science behind decompression. They developed the first working heliox tablets more than eighty-years ago. They later disproved mixed gas myths. Actually, the researchers have created a decompression table which could lower the chance of diving-related death. Diving with heliox should follow all instructions.
Heliox 32
The Heliox 32 Trimix Diver is a perfect replacement for the Heliair diving mix. This gas is less than 21% in oxygen. As a result, it is not only cheaper than air but is also less toxic. It is also recommended for diving at any depth. There are some things to keep in mind before you switch to this gas. Continue reading to learn more about the gas. You might be surprised at how well it performs for your specific needs.
It is important to think about the dive type you will be taking when selecting a tank. Because they release oxygen at different rates, nitrogen diver tanks and heliox tanks should have lower helium contents. Divers who combine both are dangerous and can get decompression sick. You should also consider the safety of a diving partner, as they might be able to share your weight with you.