ISO 7884-4:1987

Glass — Viscosity and viscometric fixed points — Part 4: Determination of viscosity by beam bending

OVERVIEW

A method of determining the dynamic viscosity of glass on a rod-shaped test specimen, i.e. a beam, supported at its end is specified. The viscous deflection rate of the beam is measured under given load at the midpoint between the supports. In addition the viscosity-temperature relationship and the dependence of the viscosity on the thermal history of the sample can be determined. The theoretical basis relations and the apparatus including method of measurements are described.

COMMENTS

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PRODUCT DETAILS

Status Current
Edition 1987
No. of Pages 12
ICS Classification 81.040.01 Glass in general
Committee ISO/TC 48
Available for Purchase For sale in Singapore only
Adoption ISO