NF P12-101-18*NF EN 772-18:2011 Methods of test for masonry units - Part 18 : determination of freeze-thaw resistance of calcium silicate masonry units.
2011NF P12-101-18*NF EN 772-18:2011 Methods of test for masonry units - Part 18 : determination of freeze-thaw resistance of calcium silicate masonry units.