DIN ISO 7884-5-1998 玻璃.粘度和粘度固定点.第5部分:沉棒粘度计测定工作点

标准号：DIN ISO 7884-5-1998
中文标准名称：玻璃.粘度和粘度固定点.第5部分:沉棒粘度计测定工作点
英文标准名称：Glass - Viscosity and viscometric fixed points - Part 5: Determination of working point by sinking bar viscometer (ISO 7884-5:1987)
标准类型：Q30
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：Q30
国际标准分类号：81.040.10
适用范围：The document specifies a method of determining the working point of glass by means of the sinkimg bar viscometer. The method has been found useful for characterizing the low-viscosity range of glass working. This viscometric fixed point can be used in determining the viscosity-temperature relationship (see DIN ISO 7884-1). This method is applicable to all glasses of normal bulk-produktion compositions unless devitrification or evaporation of volatile components takes place during the preparation or testing of the specimen.