Accuracy of salt test calibration

[bobarian]

Originally Posted by mscales

I keep doing the salt test and find that the outside ambient temp has a affect on the RH. So what is the ideal ambient temp for a salt test to get 75% RH?

Temps in Celcius but easily converted. http://www.omega.com/temperature/z/pdf/z103.pdf

Clayton, the chemistry of aqueous solutions of various salts has been a laboratory standard for a very long time. The reason for variability is results is in the test method not the chemistry.