DALTONS LAW - PARTIAL PRESSURE

Question 1

PP = % x AP
——————
100

OR

PP = Decimal % x APressure

Answer 1

OR FOR MILLIBARS

PP (mb) = ABSOLUTE DEPTH (msw) x PERCENTAGE (%)

Question 2

Calculate a suitable mix for a dive requiring PP02 of 0.6 atm

Answer 2

DECIMAL % = PP
—— X 100
AP

E.g. Want 600mb for a dive to 180msw

                       0.6
                      ——   X 100
                      19bar (a) 
                                             = 3.2%