Glass classification according to EN 356 standard
Marking of safety glass according to the classification by standard LST EN 356:2002.
*Test with steel ball of 4.1 kg.
Data based on technical information of glass suppliers.
Marking of safety glass according to EN 356
Resistance against hand stroke (axe test).
Source:
http://www.glassinchina.com/news/newsDisplay_20483.html