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SUUNTO EON STEEL User Manual

Page 72

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Term

Explanation

O2%

Oxygen percentage or oxygen fraction
in the breathing gas. Standard air has
21% oxygen.

pO2

Partial pressure of oxygen. Limits the
maximum depth to which the nitrox
mixture can be safely used. The
maximum partial pressure limit for
enriched air diving is 1.4 bar. The
contingency partial pressure limit is 1.6
bar. Dives beyond this limit risk
immediate oxygen toxicity.

Repetitive dive

Any dive whose decompression time
limits are affected by residual nitrogen
absorbed during previous dives.

Residual nitrogen

The amount of excess nitrogen
remaining in a diver after one or more
dives.

RGBM

Reduced gradient bubble model.
Modern algorithm for tracking both
dissolved and free gas in divers.

SCR

Semi-closed rebreather. Scuba that
recycles a portion of exhaled gas.

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