Din - En 14179-1

is the authoritative standard for heat soaked thermally toughened soda lime silicate safety glass used in the building industry. Its primary purpose is to address the "ticking time bomb" of toughened glass: spontaneous breakage caused by nickel sulfide (NiS) inclusions .

In the world of architectural glazing, automotive design, and interior construction, is ubiquitous. When it breaks, it crumbles into small, blunt pieces rather than dangerous shards—a property that has saved countless lives. However, even toughened glass harbors a hidden vulnerability: nickel sulfide (NiS) inclusions . These microscopic impurities can cause spontaneous, catastrophic breakage months or even years after installation. din en 14179-1

The 2-hour period only begins once every single glass pane in the chamber has reached 290°C. This can take 4–6 hours for thick glass (19mm+) or tightly packed loads. is the authoritative standard for heat soaked thermally