ASTM C965-23 82 PDF Download

1.1 This practice covers the determination of the viscosity of glass above the softening point through the use of a platinum alloy spindle immersed in a crucible of molten glass. Spindle torque, developed by differential angular velocity between crucible and spindle, is measured and used to calculate viscosity. Generally, data are taken as a function of temperature to describe the viscosity curve for the glass, usually in the range from 1 to 10⁶ Pa·s.

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Published:

05/01/2023

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4

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1 file , 340 KB

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2 files , 490 KB

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