NEN EN 12951:2004被替代
Prefabricated Accessories For Roofing - Permanently Fixed Roof Ladders - Product Specification And Test Methods
出版：Nederlands Normalisatie Instituut
专家解读视频
2004 [01/11/2004]DRAFT 2002 [01/11/2002]DRAFT 1997 [01/07/1997]
I.S. EN 12951:2005 - Identical
SS EN 12951 Ed. 1 (2004) - Identical
UNE EN 12951:2006 - Identical
NS EN 12951 Ed. 1 (2005) - Identical
UNI EN 12951:2005 - Identical
NF EN 12951:2005 - Identical
NBN EN 12951:2005 - Identical
DIN EN 12951 (2005-02) - Identical
BS EN 12951:2004 - Identical
SN EN 12951:2004 - Identical
ONORM EN 12951:2007 - Identical
