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 about Normoxic, Hypoxic, and Heliox dives and how to manage your equipment. It is also important to understand how to maintain your body position underwater. These are the essential requirements for this certification. To get your card, you will need to complete several practical sessions in confined water.
Normoxic
The IANTD Normoxic Normmix Diving course is designed to train divers who are interested in diving up to 60 metres without using oxygen. This course includes both a theory and confined water skills practice. This course does not only cover theory but also covers four stage dives. Students learn skills to deal with emergency situations during these dives. Students can earn the CCR trimix certification upon completion of the course.
Technical diver training can be used to differentiate between the two levels. The bottom mix can be used by a normoxic trimix diver. 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
Among the many technical diving courses offered by SSI, the Hypoxic Trimix Diver course is considered to be the pinnacle. This course teaches students advanced techniques and uses multiple decompression gas systems, as well as the proper use of travel gas. Students will also learn how to deal with emergencies and the dangers of technical diving. Six dives require anoxia-reducing equipment.
When breathing normal air, the content of oxygen is 20 percent to 21 percent. Minimum is 18%. Normal air is safe for breathing at sea level as the atmospheric pressure hovers around one bar. Divers must use a blend of travel mixes when diving in waters with less than 18% oxygen. This will allow them to breathe deeper. You should remember that 100 meters of diving requires more oxygen than normal air. Hypoxic divers should use travel mixtures to compensate.
Heliox
Numerous myths regarding heliox/diving have been created since the Hans Keller tragedy. Some people were concerned about the long decompression times of helium, and others were worried about the potential for CNS effects. Helium is expensive and rare, which fuelled these myths. Hydrogen, on other hand, can be found in abundance, is inexpensive, and has very few toxicity concerns. Additionally, hydrogen can be used at all depths.
The Navy Experimental Diving Unit was the first organization to research the science of diving. The research team developed the first working heliox tables more than eighty years ago. They proved the mixed gas myth wrong. In fact, the research group has developed a decompression table that has the potential to reduce the chances of death while diving. Follow the instructions of your manufacturer if you are a diver using heliox.
Heliox 32
The Heliox 32 Trimix Diver is an excellent alternative to standard Heliair. This gas has less than 21% of oxygen. Because it contains less oxygen than air, it is cheaper and more toxic than the latter. It is also recommended for diving at any depth. There are many things you need to remember before switching to this type of gas. You can read on to find out more about this gas. You may be amazed at the results it can provide for your particular needs.
You should consider what type of diving you are planning to do when choosing a tank. Because they release oxygen at different rates, nitrogen diver tanks and heliox tanks should have lower helium contents. Combining the two can result in decompression sickness. A diving partner might be able share your weight, so you should consider their safety.