Table of Contents
Advertisement
8. GLOSSARY
Air Time
Altitude dive
Ascent rate
ASC RATE
Ascent time
ASC TIME
Ceiling
Ceiling Zone
CNS
Central Nervous System Toxicity
CNS%
Compartment
DAN
DCI
Decompression
Decompression range On a decompression stop dive the depth range, between the
Decompression illness
68
The amount of dive time remaining, based on a calculation of
cylinder pressure and ambient pressure and present air
consumption.
A dive made at an elevation greater than 300 m [1000 ft] above
sea level.
The speed at which the diver ascends toward the surface.
Abbreviation for ascent rate.
The minimum amount of time needed to reach the surface on a
decompression stop dive.
Abbreviation for ascent time.
On a decompression stop dive the shallowest depth to which a
diver may ascend based on computer nitrogen load.
On a decompression stop dive the zone between the ceiling and
the ceiling plus 1.8 m [6 ft]. This depth range is displayed with
the two arrows pointing toward each other (the "hour glass"
icon).
Abbreviation for Central Nervous System toxicity.
Toxicity caused by oxygen. Can cause a variety of neurological
symptoms. The most important of which is an epileptic-like
convulsion which can cause a diver to drown.
Central Nervous System toxicity limit fraction. Also note
Oxygen Limit Fraction
See "Tissue group".
Divers Alert Network.
Abbreviation for decompression illness.
Time spent at a decompression stop or range before surfacing,
to allow absorbed nitrogen to escape naturally from tissues.
floor and ceiling, within which a diver must stop for some time
during ascent.
Any of a variety of maladies resulting either directly or indirectly
from the formation of nitrogen bubbles in tissues or body fluids,
as a result of inadequately controlled decompression. Commonly
called "bends" or "DCI".
Advertisement
Table of Contents
