NF P12-115*NF EN 772-15:2001 Methods of test for masonry units - Part 15 : determination of water vapour permeability of autoclaved aerated concrete masonry units
2001NF P12-115*NF EN 772-15:2001 Methods of test for masonry units - Part 15 : determination of water vapour permeability of autoclaved aerated concrete masonry units