Tempered glass, according to federal specifications, must have a surface compression of 10,000 psi or more; it generally breaks at approximately 24,000 psi.

A window must be tempered glass if all of the following criteria are met: more than nine square feet in one single piece of glass that is 18 inches or less from the floor and the top of the glass ...

Tempered glass is designed for safety but can have imperfections. Oct. 6, 2012— -- Larry Kucharik, 64, of Oak Park, Ill. was having his morning coffee when his wife alerted him to a strange ...

Yes, all glass that is within 60 inches vertically from the tub or shower drain must, according to Indiana Codes, be tempered glass. You can check with your local or state building authority, but ...