Pentair HAFFMANS ICC Instruction Manual page 27

7.3.4 Calculating CO2 with air correction
The standard formula has been adjusted for air correction:

CO % by weight
2
where : A
The CO2 value read should be corrected as follows:

actual CO % by weight
2
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

   

 A  p bar  p




= conversion factor/compensation factor,
p = gas equilibrium pressure,
patm = atmospheric pressure in bar,
Vair = air volume in ml read on the IAM,
Vheadspace = headspace volume of the bottle or can in ml as
determined by weighing or with a template,
C = product-dependent factor
D = product-dependent factor (
T = liquid temperature measured in C.

 CO read  p 
2 atm
V
air
 p 
atm atm
V
headspace
(-10,74)
2617,25)
 D
V   C 
 
T  C  273 .
air 
 e
V
headspace
HAFFMANS ICC
 D 


  C   
 

T C 273.15
  
 
 e




,
,

 
15

ICC