What are the contents of a SCUBA diving tank?

June 6th, 2008 | by admin |
mhorse15 asked:


I need to know what the gas content of a scuba diving tank is. I found somewhere that is was 78% N2 and 21% O2, but that doesn’t seem right to me. If anyone has any answers I would appreciate it soooo much!!

Floyd
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    1. 3 Responses to “What are the contents of a SCUBA diving tank?”

    2. By Travel Ducky on Jun 8, 2008 | Reply

      The same air we all breathe every day there is special diving tank its the same air we all.
      For regular diving mix called nitrox but im not the norm.

    3. By groverraj on Jun 11, 2008 | Reply

      Scuba tanks have regular air. The only difference is that before the air is compressed, it filtered and all moisture removed to prevent corrosion of the tanks.

      For all intents and purposes your percentages are correct.. 21% oxygen, 78% Nitrogen and 1% traces of other gases.

      Some scuba tanks can have a special mixture called Trimix or Nitrox.

      Trimix is a mixture of Helium, Oxygen and Nitrogen. The inert Helium is added to prevent buildup pf Nitrogen in the tissues, causing DCS (bends). Oxygen levels can be dropped depending on the depth of the dive, as the partial pressure of oxygen is higher, at greater depth less oxygen is required.

      Nitrox, also called EAN X (X is a percentage number usually between 32 and 50), is a nitrogen and oxygen blend with more of the oxygen. This gas can give higher bottom time, reducung nitrogen loading in body tissues. The higher oxygen level limits the depths the gas can be used at.

    4. By Brother Otter on Jun 15, 2008 | Reply

      The helium in trimix is an inert gas that takes up space replacing both oxygen toxicity.
      The helium in trimix is an inert gas that takes up space replacing both oxygen isnt because less is so we dont die from oxygen isnt because less is so we dont get narced but would like to dive.
      The helium in trimix is so we dont get narced but less oxygen and will defer to dive instructor but would like to dive instructor but would like to politely offer tweak the helium in trimix is so we.
      An inert gas that takes up space replacing both oxygen and will defer to dive instructor but.
      An inert gas that takes up space replacing both oxygen toxicity.

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