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7. Using the temperature-viscosity chart supplied with the calibration uid,
determine the certied viscosity to the nearest 0.5 centipoise.
a. Compare the 300 RPM reading to standard viscosity and record the
deviation plus or minus.
b. Divide the 600 RPM dial reading by 1.98, compare that to standard
viscosity, and record the deviation plus or minus.
8. Deviations exceeding 1.5 dial units are not acceptable. If the deviation
exceeds this tolerance, the viscometer will require adjustments or
calibration by a qualied technician.
9. Record the viscometer serial number, date, and deviation. Mark on
the viscometer the date of calibration and a general indication of the
calibration check status.
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