BS 7034-4-1988 玻璃粘度和测定粘度固定点.使用光束弯曲法测定粘度的方法

标准号：BS 7034-4-1988
中文标准名称：玻璃粘度和测定粘度固定点.使用光束弯曲法测定粘度的方法
英文标准名称：Viscosity and viscometric fixed points of glass - Method for the determination of viscosity by beam bending
标准类型：Q30
发布日期：1989/1/31 12:00:00
实施日期：1989/1/31 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：This part of ISO 7884 specifies a method of determining the dynamic viscosity of glass on a rod-shaped test specimen (called a beam) supported at its ends. The viscous deflection rate of the beam is measured under a given load at the midpoint between the supports. In addition the viscosity-temperature relationship and the dependence of the viscosity on the thermal history of the sample can be determined.The viscosity range covered by this method extends from 10