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ISO 7884-5:1987

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

Nov 26, 1987

General information

90.60     Mar 5, 2026

ISO

ISO/TC 48/SC 7

International Standard

81.040.01  

English  

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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
90.60 Close of review
Mar 5, 2026

National adoptions

SSH ISO 7884-5:2002  
DPS

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

60.60 Standard published

DPS/KT 129 more