Calcium Chloride Shown to Give False Readings – RH 5 of 21

Extensive testing was concluded that due to the unreliability of Calcium Chloride tests, that there is no correlation between moisture content and relative humidity. Kanare sums up the facts about the ASTM F1869 test method.

MVER vs. RH Chart – Download PDF

“There are many reasons why calcium chloride moisture emission testing cannot do what a relative humidity test can accomplish. The bottom line is that RH testing is a far better predictor of whether or not a floor covering or coating on a concrete slab will succeed or fail. It is unnecessary to perform moisture emission tests in addition to relative humidity.”

– Howard Kanare, Senior Principal Scientist, CTLGroup

To learn how you can view the full presentation, please visit: Rapid RH® Testing for Concrete Floors Webinar Video Excerpts

Copyrighted material by CTLGroup. All rights reserved. Used with permission by Wagner Meters.

Last updated on August 29th, 2023

Leave a Reply

Your email address will not be published. Required fields are marked *