標準號：ISO 7884-5-1987
中文標準名稱：玻璃 粘度和粘度固定點 第5部分:用沉棒粘度計測定工作點
英文標準名稱：Glass; Viscosity and viscometric fixed points; part 5 : Determination of working point by sinking bar viscometer
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 specified method is suitable for characterizing the low-viscosity range of glass working: A vertically positioned narrow metal rod, i.e. the bar, is allowed to sink under its own weight into the melt. From the rate of sinking the dynamic viscosity is calculated. The teoretical basis relation and the apparatus including method of measurements are described.