ISO-7884-5 › Glass - Viscosity and viscometric fixed points - Part 5 : Determination of working point by sinking bar viscometer

ISO-7884-5 - 1ST EDITION - CURRENT


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The specified method is suitable for characterizing the low-viscosity range of glass working: A vertically positioned narrow metal rod, i.e. the bar, is allowed to sink under its own weight into the melt. From the rate of sinking the dynamic viscosity is calculated. The teoretical basis relation and the apparatus including method of measurements are described.

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Document Number

ISO 7884-5:1987

Revision Level

1ST EDITION

Status

Current

Publication Date

Dec. 15, 1987

Committee Number

ISO TC 48/SC 5