106
with p100
O2
= 0.2095 ( p
atm
– p
H2O
(T) )
p
H2O
(T) = 6.112mbar x exp ( 17.62 T[°C] / (243.12 + T[°C]))
p
O2
: actual partial pressure
p
atm
: actual barometric pressure
T: actual temperature
p
H2O
(T): saturated water vapor pressure at temperature T
Dissolved O2 concentration C
µmol/L
Definition:
C [µmol/L] = A[%a.s.] / 100% x C
100
(T,P,S)
Used in:
water phase
with
C
100
(T,P,S): interpolation formula for dissolved oxygen
concentration in units of µmol/L at temperature T,
atmospheric pressure P and Salinity S (see chapter 12.7).
Dissolved O2 concentration C
mg/L = ppm
Definition:
C [mg/L] = C [µmol/L] x 32 / 1000
Used in:
water phase
Dissolved O2 concentration C
mL/L
Definition:
C [mL/L] = C [µmol/L] x 0.02241
Used in:
water phase
