NF EN 772-20:2001現行
Methods Of Test For Masonry Units - Part 20: Determination Of Flatness Of Faces Of Aggregate Concrete, Manufactured Stone And Natural Stone Masonry Units
出版：Association Francaise de Normalisation
專家解讀視頻
Defines a procedure to determine the flatness of faces of aggregate concrete, manufactured stone and natural stone masonry units.
Indice de Classement: P12-120. (09/2002)
UNI EN 772-20:2005 - Identical
NBN EN 772-20:2000 - Identical
ONORM EN 772-20:2005 - Identical
DIN EN 772-20 (2005-05) - Identical
BS EN 772-20:2000 - Identical
SN EN 772-20:2000 - Identical
I.S. EN 772-20:2000 - Identical
NS EN 772-20:2000 - Identical
UNE EN 772-20:2001 - Identical
SS EN 772-20:2000 - Identical
NEN EN 772-20:2000 - Identical
