What is XYB Tempered Glass with heat soak?

Heat soaked thermally toughened soda lime silicate safety glass
The heat soak process cycle consists of a heating phase.a holding phase and a cooling phase. Up-to-now, the most effective and efficient way to minimize the risk spontaneous breakage.

Tempered Glass with Heat Soak Process
All tempered glass panes should be heat soak treated.It is widely recog- nized that heat soak process2 accelerates the expulsion of the nickel sulphide inclusions in tem- pered glass and that heat soak process is the most effective means of eliminating tempered glass with nickel sulphide. It is therefore required that heat soak process conforming to BS EN 14179-1:2005 or other equivalent international standards should be carried out to all tempered glass panes, as one of the quality control measures for tempered glass used in curtain wall, window and window wall works.