*Float Glass: Glass formed on a bath of molten tin. The surface in contact with the tin is known as the tin side. The top surface is known as the atmosphere or air side.
*Tempered Glass: Flat or bent glass that has been heat-treated to have a minimum surface compression of 10,000 psi, or edge compression not less than 9,700 psi in accordance with the requirements of ASTM C-1048.
Tempering process is a heating and cooling process that changes the molecular value of the glass