The viscometer cup is filled with the warm sample, then placed in the bath to settle at a specific temperature, before the ball valve is pulled.
After the first 25 ml of the sample ran out, the time for the next 50 ml will be determined.

Efflux-Viscometer (former Road Tar Viscometer)
for road tars and highly-viscous bitumen emulsions

To be composed of:

- Efflux-Viscometer
- Electronic Energy Regulator