The Saybolt viscosity of blends. . PRICE 5 CENTS Sold only by the Superintendent of Documents, Government Printing OfficeWashington, D. C. WASHINGTON GOVERNMENT PRINTING OFFICE 1920 SAYBOLT VISCOSITY OF BLENDS By Winslow H. Herschel CONTENTS I. Introduction 3 II. Preliminary investigation of the viscosity of mixtures 4 III. Blending table 5 IV. Graphical methods of interpolation 10 V. Comparison with Espys results 12 VI. Tests with gasoline 14 VII. Tests with oils from different crudes, but of approximately the same viscosity at the temperature of test 15 VIII. Graphical representation of resu
The Saybolt viscosity of blends. . PRICE 5 CENTS Sold only by the Superintendent of Documents, Government Printing OfficeWashington, D. C. WASHINGTON GOVERNMENT PRINTING OFFICE 1920 SAYBOLT VISCOSITY OF BLENDS By Winslow H. Herschel CONTENTS I. Introduction 3 II. Preliminary investigation of the viscosity of mixtures 4 III. Blending table 5 IV. Graphical methods of interpolation 10 V. Comparison with Espys results 12 VI. Tests with gasoline 14 VII. Tests with oils from different crudes, but of approximately the same viscosity at the temperature of test 15 VIII. Graphical representation of results of tests 17 IX. Conclusion 20 I. INTRODUCTION Various formulas and diagrams have been published fordetermining the viscosity of liquid mixtures, but they are mostlyexpressed in Engler degrees and are not convenient for the userof the Saybolt Universal viscosimeter.* Dunstan and Thole 2quote the Arrhenius formula as modified by Kendall3: log fx=a\og nt + b log/x2, (1) where a and b are the molecular percentage concentrations ofsayboltviscosi1920164hers
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