How can tempered glass be identified?

Tempered glass is uniquely identified by a symbol etched in one corner, which often indicates that it has been tempered. This symbol or marking serves as a certification that the glass meets specific safety standards, indicating that it has undergone a heating and cooling process to enhance its strength and thermal resistance. This marking is an important safety feature; it provides reassurance to users and professionals that the glass has been treated for durability and safety.

Other characteristics such as thickness, color, or weight are not reliable indicators of whether glass is tempered; these attributes can vary widely in both tempered and non-tempered glass. Therefore, the etched symbol is the definitive way to identify tempered glass and ensures proper use in applications where safety is a concern.