Technical diving (or Tec diving) is a form of scuba diving that exceeds the scope (in terms of depth, bottom time and type of diving) of recreational diving and not for military application. Technical divers require advanced training, extensive experience, specialized equipment and breathing gases.
The following
table gives an overview of the differences between technical and recreational
diving.
Activity
|
Recreational Diving
|
Technical Diving
|
Deep diving
|
Maximum depth of 40 meters
(130 ft)
|
Beyond 40 meters (130 ft)
|
Decompression
diving
|
No decompression
|
Decompression diving
|
Mixed gas
diving
|
Air and Nitrox
|
Trimix, Heliox, Heliair and Hydrox
|
Gas switching
|
Single gas used
|
May switch between gases to
accelerate decompression and/or "travel mixes" to permit descent
carrying hypoxic gas
mixes
|
Wreck
diving
|
Penetration limited to "light
zone" or 30 meters (100 ft) depth/penetration
|
Deeper penetration
|
Cave diving
|
Penetration limited to "light
zone" or 30 meters (100 ft) depth/penetration
|
Deeper penetration
|
Ice diving
|
||
Rebreathers
|
Some agencies regard use of
semi-closed rebreathers as recreational diving; others as technical diving.
|
|
Solo diving
|
Recreational diving requires buddy
system
|
Solo diving
|
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