When you are looking to get your recreational trimix diver certification, you should learn about the different types of gas and mix ratios. Learn about Normoxic, Hypoxic, and Heliox dives and how to manage your equipment. A good understanding of how to maintain your body posture underwater is essential. These are the main requirements for this type certification. To get your card, you will need to complete several practical sessions in confined water.
Normoxic
The IANTD Normoxic Normmix Diver course is designed for divers who wish to be able to dive to 60m without the use of breathing air. It also has a theory component as well as confined water skill practice. In addition to theory, this course also includes four stage decompression dives. During these dives, students practice skills for emergency scenarios. Students can earn the CCR trimix certification upon completion of the course.
Technical diver training might differentiate between the two levels of trimix divers. The normoxic trimix diver can start on the bottom mix. In contrast, a hypoxic trimix diver must dive in a travel mix to begin their descent. The diver will need to switch gas mixtures during their first descent, which can make it more difficult. Hypoxic trimix divers may be required to dive longer as they can mix more gases.
Hypoxic
Among the many technical diving courses offered by SSI, the Hypoxic Trimix Diver course is considered to be the pinnacle. This course teaches advanced techniques and demonstrates the correct use of travel gas. Students will also learn about the hazards and risks of technical diving as well as how they can respond to emergencies. The course also includes 6 dives that require the use of anoxia-reducing equipment.
Normal air has a 20 percent to 21% oxygen content. The minimum is 18 percent. At sea level, normal air can be breathed because the atmospheric pressure is approximately one bar. Divers must use a mix of travel and oxygen when diving in water less than 18% oxygen. This will help divers breathe deeper. Remember that normal air does not suffice for a 100-meter dive. To compensate, hypoxic divers will need travel mixes.
Heliox
Many myths surrounding heliox, diving and the Hans Keller tragedy have emerged since then. Some were worried about the lengthy decompression times and some were worried about CNS side effects. These myths are fueled by the fact helium can be expensive and scarce. Hydrogen, by contrast, is abundant and cheap. In addition, hydrogen is safe for use at all depths.
One of the first diving groups to study decompression was the Navy Experimental Diving Unit. They developed the first working heliox tablets more than eighty-years ago. They disproved the mixed-gas myth. Actually, the researchers have created a decompression table which could lower the chance of diving-related death. The manufacturer's instructions must be followed by any diver using heliox.
Heliox 32
The Heliox 32 Trimix Diver is an excellent alternative to standard Heliair. This gas contains less oxygen than 21%. As a result, it is not only cheaper than air but is also less toxic. It is also recommended for diving at any depth. Before switching to this gas, there are several things you need to consider. Read on to learn more about this gas. You may be amazed at the results it can provide for your particular needs.
Consider the type of dive you'll be doing when you choose a tank. Heliox and nitrogen diver tanks need to have lower helium levels, as they each release oxygen at a different rate. A dive that combines both is dangerous, and it can lead to decompression sickness. Safety of a diving partner is also important, since they may be able and willing to share your weight.