Calibration of the viscosity instrument should be perform on the regular basic in your laboratory/ production lane. It is a very easy procedure which require just calibration oil and little bit of extra time.
It is very important to maintain practice of regular annual calibrations by independent calibration service but by performing regular calibration yourself you will be sure that your instrument is in expected working condition and it is giving you the most accurate reading to assure the quality of your product.
For rotational viscometers we will recommend to use Cannon Calibration Oil RT5000.
If you need any advice on how to perform calibration please send as an email: