This Technical Specification specifies a method for determining the freeze/thaw resistance of clay masonry units that are declared by the manufacturer as meeting the requirements for HD units and as suitable to be subjected to severe (F2) exposure.
DS/CEN/TS 772-22:2006 history
2006DS/CEN/TS 772-22:2006 Methods of test for masonry units – Part 22: Determination of freeze/thaw resistance of clay masonry units