Automatic Houillon Viscometer (ASTM D341, D445, D7279)

Automatic Houillon Viscometers ASTM D 341 ; ASTM D 445 ; IP 71
New Method: ASTM D7279 !

Using a Houillon capillary tube, ISL's VH Series Viscometers automatically determine kinematic viscosity of lubricating oils, used oils, fuels, polymers and similar materials over a wide viscosity range.
The method was initially developed for lubricant blending facilities, research labs, and used oil verification measurements.
It requires less than 1 millilitre of sample with an average run time of 60 seconds, maintaining the precision of ASTM D 445.
Running under custom 32-bit, multitasking Windows-based software, you can centrally monitor of up to 16 capillaries spanning up to 4 baths.
Results are displayed, saved in the database, printed or sent directly to a LIMS following user-defined protocol.
The Model VH 1 integrates a single solvent capacity for tube cleaning, while the Model VH 2 accommodates two solvents, offering more flexibility in solvent selection and more efficient tube cleaning and drying. All VH 2 parts that come in contact with sample or solvents are made of glass, stainless steel and brass, Teflon or Kalrez . Thus, aggressive solvents can be used on this model.

ASTM D 445 precision using less than 1mL of sample
- Viscosity range: 2 to 2000 cSt at 40ºC
- Bath temperature from 20º to 120ºC with ±0.01ºC stability
- High throughput... 75 samples per hour, per bath
- Average viscosity and/or viscosity index in minutes
- Automatic tube cleaning & drying
- Less than 10 ml solvent used in cleaning cycle

Including 4 capillaries per VH1 viscometer
Capillary constants according to customer requirement: please specify when ordering.