Here on the ICU we have very high/precize equipment to measure co2 in Kpa in the air. My question is, is there any relationship between Kpa and ppm or mg/l. I know that Kpa measures pressure and ppm is a concentration. What do i want to do: Fill a bottle (for 3/4) with my tankwater, close the bottle. The co2 will equalize in the trapped air(i assume) from the water. So in the trapped air will be the same amount of co2, that i can measure in Kpa. Is this a usefull method or does it not make any sense.
thanks
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