Apparent Viscosity
Brookfield Viscosity
Cloud Point
Deposit Control, High Temperature
Deposit Control, Moderately High Temperature
Evaporation Loss
Foam Stability
Foam Tendency
Gelation Index
Grease Oxidation Stability
HTHS Viscosity
Kinematic Viscosity, High-Temperature
Kinematic Viscosity, Low-Temperature
Low Shear Viscosity, High Temperature
Phosphorus Emission Index (PEI)
Pour Point
Pumpability, Low-Temperature
RPVOT (RBOT) Oxidation Stability
Scanning Brookfield Technique
Viscosity, Low-Temperature
Volatility Test
Yield Stress, Low-Temperature
Apparent Viscosity
Brookfield Viscosity
Cloud Point
Deposit Control, High Temperature
Deposit Control, Moderately High Temperature
Evaporation Loss
Foam Stability
Foam Tendency
Gelation Index
Grease Oxidation Stability
HTHS Viscosity
Kinematic Viscosity, High-Temperature
Kinematic Viscosity, Low-Temperature
Low Shear Viscosity, High Temperature
Phosphorus Emission Index (PEI)
Pour Point
Pumpability, Low-Temperature
RPVOT (RBOT) Oxidation Stability
Scanning Brookfield Technique
Viscosity, Low-Temperature
Volatility Test
Yield Stress, Low-Temperature
A low-shear (1-200 reciprocal seconds) rotational viscometer that measures true viscosity (dynamic) not a combined viscosity-density value (kinematic). This is very important when distinguishing the viscous properties of synthetic and mineral oils or when comparing water-based and oil-based lubricants. For automotive applications the TBR has been found particularly useful in measuring the viscosity of sooted diesel engine oils.
The TBR maintains a constant shear rate from 1 to over 200 reciprocal seconds (sec-1), depending on speed setting and rotor size. The instrument analyzes fluids with viscosities ranging from 1 to 35,000 cP with the current Rotor design. For measuring higher viscosities, a different size Rotor may be required. This can be investigated and manufactured on a project-by-project basis, and the instrument can be customized to fit your needs. The desired operating temperatures would be required for such a project to commence.
When measuring oils with viscosities too high to manually (hand) inject into the TBR via the syringe, a Pump Controller is required.