PHYSICS: Establishing a ppO₂ – (ALST)

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It is essential that a LST understands how to establish a ppO₂ in a saturation environment. EXAMPLE Pressurise to 90msw using 16 % and 2 % HeO2.  –Maintain  a pO2 of 400 mbar. Initial blowdown using the 16%  until a desired depth to switch to the low mix.           (400required PPO2  –  210current PPO2 )  –  (90msw x  2%) ÷  (10% – 2%)   =          190 -180 ÷ 8 = […]

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