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Cannon™ Fenske Opaque Viscometer

CFO Calibrated Series that determines viscosities using ASTM testing methods.

Manufacturer:  Cannon™ 9721F83

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Catalog No. 22-273947

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Includes: Certificate of calibration and instruction sheet



Permit measurements of liquids whose meniscus cannot be seen at the timing marks when using Cannon-Fenske Routine-type viscometer

  • Used to measure kinematic viscosity of liquid (cutback) asphalts and road oils at 60°C (140°F) in range of 30 to 6000 centistokes according to ASTM D 2170
  • Also used to study lubricating oils at low temperatures when investigating the effect of various additives on lubricating and hydraulic oils
  • External pressure can be applied to vary shear stress and shear rate
  • Upper bulb may be used for determining the degree of non-Newtonian behavior of the sample


Specifications conform to ASTM D 446 and ISO 3105 for single determinations of viscosity for opaque liquids



ASTM D445, ASTM D446, ISO 3104, ISO 3105, calibration certificate
Borosilicate Glass
Cannon™ Fenske Opaque Viscometer
4000 to 20000 cSt
20 cSt/sec.
9 in.
Instruction sheet, calibration certificate
For measurement of kinematic viscosity of dark Newtonian liquids, measure kinematic viscosity of liquid and to study lubricating oils, upper bulb may be used for determining the degree of non-Newtonian behavior of the sample
0.4 oz.
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