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Glass testing machine high-temperature penetration viscometer PVM-1400

For viscosity measurement around the softening point.

This device is a glass viscometer that employs the penetration method. The conventional needle penetration method has been used for measuring in the high viscosity range (around 10^10 Pa·s), but this viscometer is a new measurement device that can measure from the molten state to the solidified state. In the low viscosity range (10^2 to 10^8 Pa·s), viscosity is measured by controlling the penetration speed and measuring the resistance (load) applied at that time. Reference: Michimata Yuu, Matsushita Kazumasa, Journal of the Ceramic Society of Japan 105[7]620-623 (1997)