Haitong's six-speed rotary viscometer, how to measure the viscosity of liquid with it, and how many revolutions are what we usually call liquid viscosity.
This 6-speed viscometer is Fan-35 rotary viscometer, and its viscosity value is calculated by mathematical formula based on the data obtained from 3~600 rpm. For example, the apparent viscosity is 600 rpm minus 300 rpm, so this viscometer can't meet your test requirements.