Nincehelser,
When using salt water for calibration, do I need to be concerned about room temperature or water temp?
Sam
As long as the temperature is reasonable (i.e. around room temp) and stable , it's not important.
The equilibrium is maintained regardless of the actual temperature, which is why it's a good calibration reference.
However, if the temperature is changing faster than the system can adapt, then all bets are off.