Brookfield DV-II+ Digital Viscometer - Manual (Page 25)

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It is best to use a viscosity standard fluid that will be close to the maximum viscosity for a given
cone spindle/speed combination.
Example: LVDV-II + Viscometer, Cone CP-42, Fluid 10
Having a viscosity of 9.7 cP at 25
°
C
At 60 RPM, the full scale viscosity range is 10.0 cP. Thus, the Viscometer reading should be
97% torque and 9.7 cP viscosity
±
0.197 (closer to
±
0.2) cP. The accuracy is a combination of
Viscometer and fluid tolerance (refer to Interpretation of Calibration Test Results).
4) With the viscometer stopped, remove the sample cup and place the viscosity standard fluid into
the cup, waiting 10 minutes for temperature equilibrium.
5) Connect the sample cup to the Viscometer. Allow 10 minutes for temperature to reach
equilibrium.
6) Measure the viscosity and record the Viscometer reading in both % torque and centipoise (cP).
Note: The spindle must rotate at least five (5) times before a viscosity reading is taken.