glass-transition temperature

https://doi.org/10.1351/goldbook.G02641
The temperature at which the @V06627@ of the glass is \(10^{13}\ \text{dPa}\ \text{s}\).
Source:
PAC, 1994, 66, 577. (Definitions of terms relating to phase transitions of the solid state (IUPAC Recommendations 1994)) on page 583 [Terms] [Paper]