Viscometer / rheometer
Measures how thick a liquid is, that is its resistance to flow (viscosity). Used for syrups, suspensions, gels, creams and polymer solutions.
- Pharmaceutical
- Cosmetics
- Food & beverage
- Paints & coatings
- Polymers
- Petrochemicals

Viscometer calibration procedures
Viscosity standard check
Measures a certified Newtonian viscosity standard under controlled temperature and checks that the result is within the combined tolerance.
Open procedureSpeed accuracy
Measures the actual spindle speed at several settings with a calibrated tachometer and compares it with the set speed.
Open procedureInstrument qualification (DQ · IQ · OQ · PQ)
- 01
DQ — Design qualification
Defines instrument type (rotational, capillary or rheometer), torque range, spindle set, speed range, temperature control and data integrity needs.
- 02
IQ — Installation qualification
Confirms installation, levelling, serial numbers, software version, spindles and accessories, and the temperature control unit.
- 03
OQ — Operational qualification
Verifies speed accuracy and viscosity accuracy with certified Newtonian standards across the range, and temperature accuracy.
- 04
PQ — Performance qualification
Shows consistent results in routine use, for example by periodic checks with a viscosity standard close to the products tested.
Keep every Viscometer in control: usage logs, calibration and maintenance schedules, and automatic blocking of overdue instruments.