A basic viscometer collecting trust of the world.
Everyone can easily visually measure the viscosity of any liquid.
In alphabetical order, from the low viscosity A5 (0.005 Stokes) to the ultrahigh viscosity Z10 (1066 Stokes) all 41 viscosity tubes are prepared.
Take the sample to the empty tube to the marking line, compare the speed with which the tumble falls together with the recent viscometer tube, and the viscosity is determined.