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ISO 7884-5:1987

Glass — Viscosity and viscometric fixed points — Part 5: Determination of working point by sinking bar viscometer ISO 7884-5:1987

Publication date:   Nov 26, 1987

General information

90.93 Standard confirmed   Dec 11, 2020

ISO

ISO/TC 48 Laboratory equipment

International Standard

81.040.01   Glass in general

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Published

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Scope

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.

Life cycle

NOW

PUBLISHED
ISO 7884-5:1987
90.93 Standard confirmed
Dec 11, 2020