Calcium Chloride Test

(CaCl) (ASTM F-1865) tests measure the moisture drive at the surface in values of pounds per 1,000 sq.ft. over a 24 hr period. Typical moisture limits are: 3lbs for sheet goods, carpet tile and some epoxy flooring systems and 5 lbs for VCT. CaCl testing needs to be conducted in normal building service conditions. Vapor drive values are highly sensitive to ambient condition and often provide false results when conducted in un-conditioned spaces.