Standard Test Method for Softening Point of Glass

Importancia y uso:

2.1 This test method is useful to determine approximately the temperature below which the glass behaves as a rigid solid in glass-forming operations and for a control test to indicate changes in composition. It has been found useful for specification acceptance and for providing information in research and development work with glass.

2.2 The softening point corresponds to a viscosity ~10^6.5 – 10^7.0 Pa∙s. The exact viscosity at the softening point depends on the density of the glass. Sometimes, a viscosity of 10^6.6 Pa∙s for soda-lime silica glasses is used.3

Subcomité:

C14.04

Referida por:

C1350M-96R19, F0105-72R19, E0438-92R24, F0079-69R19, C0162-23, C0336-71R20, C1351M-96R22

Volúmen:

15.02

Número ICS:

81.040.10 (Raw materials and raw glass)

Palabras clave:

fiber elongation; glass; softening point;