ead | R Documentation |
Computes the Equivalent Air Depth for a Nitrox mixture at given depths.
ead(depth, g) eadtable(g, ppO2max=1.4)
depth |
depth of dive, in metres. |
g |
The breathing gas. An object of class |
ppO2max |
maximum permitted partial pressure of oxygen in ata. |
Applies the standard formula for equivalent air depth.
For ead
, the Equivalent Air Depth in metres for each
value of depth
;
for eadtable
, a data frame containing depths and Equivalent
Air Depth values, for a range of depths up to the maximum permitted
by ppO2max
.
This function does not check whether the breathing gas would be safe (it could be hypoxic or toxic at the depth in question).
ead
returns negative values for sufficiently shallow depths.
In eadtable
these values are blank.
Not applicable to altitude dives. Not applicable to gas mixtures other than nitrox (oxygen-nitrogen mixtures).
.
mod
,
maxmix
# Nitrox I (32% oxygen) at 20 metres ead(20, 0.32) # Nitrox I table of EAD's eadtable(0.32) # Nitrox II (36% oxygen) at a range of depths ead(10:25, 0.36)
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