
Heating systems in buildings - Method for calculation of the design heat load
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
UNE EN 12831:2003 - Identical
NS EN 12831 Ed. 1 (2003) - Identical
I.S. EN 12831:2003 - Identical
SN EN 12831:2003 - Identical
BS EN 12831:2003 - Identical
NF EN 12831:2004 - Identical
NBN EN 12831:2003 - Identical
UNI EN 12831:2006 - Identical
SS EN 12831 Ed. 1 (2003) - Identical
NEN EN 12831:2004 - Identical
EN 12831:2003 - Identical
ONORM EN 12831:2003 - Identical