NS EN 13450:2013现行
Aggregates For Railway Ballast
出版：Norwegian Standards (Norges Standardiseringsforbund)
专家解读视频
Defines the properties of aggregates obtained by processing natural, manufactured or recycled crushed unbound aggregates for use in construction of the upper layer of railway track.
NF EN 13450:2003 - Identical
UNE EN 13450:2003 - Identical
SN EN 13450:2002 - Identical
UNI EN 13450:2013 - Identical
ONORM EN 13450:2013 - Identical
SS EN 13450 Ed. 2 (2013) - Identical
NBN EN 13450:2013 - Identical
DIN EN 13450 (2013-07) - Identical
NEN EN 13450:2013 - Identical
BS EN 13450:2013 - Identical
I.S. EN 13450:2013 - Identical
