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Analysis of Low Temperature Viscosity Data for Three NBS Standard Glasses

Analysis of Low Temperature Viscosity Data for Three NBS Standard Glasses

A Napolitano, J H Simmons, D H Blackburn, R E Chidester

J Res Natl Bur Stand A Phys Chem. May-Jun 1974;78A(3):323-329.

PMID: 32189784

Abstract:

The low temperature viscosities of three glasses established as viscosity standards at the National Bureau of Standards are reported. The data overlap results which appear on the published certificates between 109 and 1012 poise and present extensive measurements up to 1016 poise. The measurements were made using both the fiber-elongation and beam-bending methods. No evidence of an Arrhenius behavior was found for any of the three glasses, even though the measurements covered a narrow range of temperatures. An analysis of the inherent measurement uncertainty associated with each method indicates that the fiber-elongation measurements are more precise than the beam-bending measurements. Analysis of the data and its uncertainty by the Fulcher Equation supports the conclusions of the error analysis.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AS2121028	Low Temperature Viscosity Standard			Price

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