The time is measured for a fixed volume of the liquid to be drawn-up by vacuum through a capillary tube, under closely controlled conditions of vacuum and temperature.

The viscosity in poises is calculated by multiplying the flow time in seconds by the viscometer calibration factor.

Vacuum Viscometer - CMVV & AIVV

to be composed of:

- CMVV - Cannon-Manning Vacuum Viscometer
- Holder
- Vacuum Device

Required accessories:

- Tempering Bath
- Filling & Cleaning Equipment