

专家解读视频
Defines a procedure for determining the overall volume shrinkage of unsaturated polyester and epoxy resins.
ISO 3521:1997 - Identical
SN EN ISO 3521:1999 - Identical
BS EN ISO 3521:2000 - Identical
DIN EN ISO 3521 (1999-10) - Identical
ONORM EN ISO 3521:1999 - Identical
NF EN ISO 3521:1999 - Identical
UNI EN ISO 3521:2001 - Identical
I.S. EN ISO 3521:1999 - Identical
NS EN ISO 3521 Ed. 1 (1999) - Identical
UNE EN ISO 3521:2000 - Identical
SS EN ISO 3521 Ed. 1 (1999) - Identical
NEN EN ISO 3521:1999 - Identical