I.S. EN 12951:2005现行
Prefabricated Accessories For Roofing - Permanently Fixed Roof Ladders - Product Specification And Test Methods
出版：National Standards Authority of Ireland
专家解读视频
Applicable to permanently fixed ladders made of metal which are permanently installed on the load-bearing construction of pitched roofs and which may be stepped or walked on for purposes of inspection, maintenance and repair of equipment installed above the roof surface.
NS EN 12951 Ed. 1 (2005) - Identical
UNE EN 12951:2006 - Identical
SS EN 12951 Ed. 1 (2004) - Identical
NEN EN 12951:2004 - Identical
ONORM EN 12951:2007 - Identical
SN EN 12951:2004 - Identical
BS EN 12951:2004 - Identical
DIN EN 12951 (2005-02) - Identical
NBN EN 12951:2005 - Identical
NF EN 12951:2005 - Identical
UNI EN 12951:2005 - Identical
