The ISO Flow Cup is designed according to ISO 2431-1993 and GB/T 6753.4-98. It is an internationally used tool for testing product viscosity. It is used for the measurement of the outflow time of Newtonian or similar Newtonian liquids (outflow time 100 seconds).
ISO Flow Cup calibration
The Flow Cup with different aperture has the following correction formula:
3 mm Flow Cup V = 0.443 t - (200/t)
4 mm Flow Cup V = 1.37 t - (200/t)
5 mm Flow Cup V = 3.28 t - (200/t)
6 mm Flow Cup V = 6.90 t - (200/t)