Cannon-Fenske Routine Viscometer

Brand: Ramin' USA Product Code:
VIS-CFR

This is the most widely used type of glass capillary kinematic viscometer tube for measurements of fluids with Newtonian flow behavior as described in ASTM D445 and D446, with precision of +/- 0.2%. Approximately 7 ml of sample is required to fill the tube. To fill, the tube is inverted, and sample is suctioned into the double bulb section to the final timing mark. After the tube is returned to upright position and sample has descended into the reservoir, the unit is equilibrated in a bath at 40°C for 15-20 minutes. Viscosity of the sample is determined by pressuring the sample upward, timing the flow between timing marks on descent, and multiplying this time (in seconds) by the Constant of that specific viscometer tube. Successive timings may be done to confirm accuracy of the time factor. Each viscometer tube has a permanent serial number and is supplied with a calibration certificate indicating the constant of that tube at 40°C and 100°C.

 

 

Part # Size Approximate Constant, (mm 2/s)/s Kinematic Viscosity Range, mm 2/s
VIS-CFR-025                                            25                 0.002 0.5 to 2 
VIS-CFR-050  50                 0.004 0.8 to 4 
VIS-CFR-075  75                 0.008 1.6 to 8 
VIS-CFR-100  100                 0.015 3 to 15 
VIS-CFR-150  150                 0.035 7 to 35 
VIS-CFR-200  200                 0.1 20 to 100 
VIS-CFR-300  300                 0.25 50 to 250 
VIS-CFR-350  350                 0.5 100 to 500 
VIS-CFR-400  400                 1.2 240 to 1,200
VIS-CFR-450  450                 2.5 500 to 2,500
VIS-CFR-500 500                 8 1,600 to 8,000
VIS-CFR-600  600                 20 4,000 to 20,000

 

 

 

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