Industrial Technologies

division of BIOLAB 

  

 Cannon Glass Capillary Viscometers & Viscosity Standards


Cannon-Fenske Opaque (CFO) Viscometers


 

CFO Calibrated Series
Reverse-flow type, for measurement of kinematic viscosity of dark Newtonian liquids according to ASTM D 445 and ISO 3104. 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. Specifications conform to ASTM D 446 and ISO 3105.

Provided with certificate of calibration and instruction sheet.

Minimum sample volume 12mL. Require liquid bath depth of 229 mm (9 inches).

PDF Datasheet | Request Info

Size

Approx. constant,
mm2/s2(cSt/s)

Kinematic Viscosity Range mm2/s(cSt)

 CFR Uncalibrated Series

CFR Calibrated Series
25 0.002 0.4 - 2 9721-E50 9721-F50
50 0.004 0.8 - 4 9721-E53 9721-F53
75 0.008 1.6 - 8 9721-E56 9721-F56
100 0.015 3 - 15 9721-E59 9721-F59
150 0.035 7 - 35 9721-E62 9721-F62
200 0.1 20 - 100 9721-E65 9721-F65
300 0.25  50 - 250 9721-E68  9721-F68
350 0.5 100 - 500 9721-E71 9721-F71
400 1.2 240 - 1200 9721-E74 9721-F74
450 2.5 500 - 2500 9721-E77 9721-F77
500 8 1600 - 8000 9721-E80 9721-F80
600   20 4000 - 20000 9721-E83 9721-F83
650 45 9000 - 45000  9721-E86 9721-F86
700 100 20000 - 100000 9721-E89 9721-F89

*Viscometers with special constants, added temps, and before/after data are available by special order at an additional cost.