BS 188:1977
Current
The latest, up-to-date edition.
Hardcopy , PDF
English
31-12-1976
Foreword
Cooperating organizations
Methods
Section one. General
1. Scope
2. References
3. Definitions
4. Units
Section two. Method using glass capillary viscometers
5. Field of application
6. Principle
7. Apparatus
8. Procedure
9. Calculation and expression of results
10. Repeatability and reproducibility
Section three. Falling sphere method
11. Field of application
12. Apparatus
13. Procedure
14. Calculation and expression of results
15. Repeatability and reproducibility
Appendices
A. Glass capillary viscometers
B. Poiseuille's law and correction for kinetic energy
C. Corrections to the viscometer factor C
D. Fall tubes
E. Mercury-in-glass thermometers
F. Timer calibration
G. Cleaning of apparatus
H. Note on derivation of units
Tables
1. Rates of fall for steel balls of different
diameters in liquids of density 0.8 g/cm cubed
and various viscosities
2. Typical Faxen correction factors
3. Values for Km and Kd
Figures
1. BS/U viscometer
2. Suspended-level viscometer, BS/IP/SL
3. Cannon-Fenske viscometer, BS/IP/CF
4. U-tube reverse flow viscometer for opaque liquids,
BS/IP/RF
5. Reverse flow Cannon-Fenske viscometer, ISO/CF/RF
6. Falling sphere viscometer. Diagram of fall-tube and
ball-releasing device, with alternative designs
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