Norm

ASTM C965-96(2012)

Standard Practice for Measuring Viscosity of Glass Above the Softening Point

54,27

Over deze norm

Status Definitief
Aantal pagina's 5
Commissie C14.04
Gepubliceerd op 01-03-2012
Taal Engels

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.

1.2 Two procedures with comparable precision and accuracy are described and differ in the manner for developing spindle torque. Procedure A employs a stationary crucible and a rotated spindle. Procedure B uses a rotating crucible in combination with a fixed spindle.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Details

ICS-code 81.040.10
Nederlandse titel Standard Practice for Measuring Viscosity of Glass Above the Softening Point
Engelse titel Standard Practice for Measuring Viscosity of Glass Above the Softening Point

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