Glass - viscosity and viscometric fixed points - part 5 : determination of working point by sinking bar viscometer iso 7884 - 5 : 1987 玻璃.粘度和粘度固定点.第5部分:沉棒粘度计测定工作
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Viscosity and viscometric fixed points of glass - method for the determination of working point by sinking bar viscometer 玻璃粘度和测定粘度固定点.第5部分:采用无芯棒粘度计测定工作点的方法