標準號：DIN ISO 7884-8-1998
中文標準名稱：玻璃.粘度和粘度固定點.第8部分:(膨脹)曲線轉變溫度的測定
英文標準名稱：Glass - Viscosity and viscometric fixed points - Part 8: Determination of (dilatometric) transformation temperature (ISO 7884-8:1987)
標準類型：Q30
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：Q30
國際標準分類號：81.040.10
適用范圍：The document specifies a method of determination the (dilatrometric) transformation temperature of a glass by means of the termal expansion method. This temperature characterizes a certain glass transition range from the elastic brittle (low temperature) state to the viscous (high temperature) state of glass. The transformation temperature has been found useful for specifying cooling programmes and estimating the upper temperatur limit of applicability of the respective glassware. This method is applicable to all glasses of normal bulk-production compositions.