
Methods of test for masonry units Part 2: Determination of percentage area of voids in masonry units (by paper indentation)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
BS EN 772-2:1998 - Identical
ONORM EN 772-2:2005 - Identical
NEN EN 772-2:1998 - Identical
SN EN 772-2:1998 - Identical
SS EN 772-2:1999 - Identical
UNE EN 772-2:1999 - Identical
NS EN 772-2:1998 - Identical
I.S. EN 772-2:1999 - Identical
NBN EN 772-2:1998 - Identical
UNI EN 772-2:2007 - Identical
NF EN 772-2:1999 - Identical