Finish TradesQuestion 257 of 700
How can an installer verify that an installed pane is tempered (safety) glass?
a.Tempered glass is always tinted blue
b.Look for a permanent etched/sandblasted manufacturer's mark in a corner
c.Tempered glass is thinner than annealed glass
d.Tap it; tempered glass sounds hollow
Explanation
Tempered glass carries a permanent identifying mark (etched or ceramic-fired) in a corner naming the maker and standard, which is the reliable field check. Tint color, thickness, and sound are not dependable indicators of tempering.
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