CATEGORY BENEFITS
Why Temperature Control is Critical
Viscosity is extremely sensitive to temperature. Even a change of ±0.01 °C can significantly aff ect results, which is why international standards specify tight temperature tolerances.
Constant Temperature Bath Principles
A viscometer bath maintains:
- Uniform temperature distribution
- Stable circulation
- Minimal thermal gradients This ensures all viscometers immersed in the bath are tested under identical conditions.
Compatibility with Viscometers
Viscometer baths are designed to support:
- Glass capillary viscometers
- Semi-automated viscometers
- Automated viscosity systems Proper mounting and vertical alignment are essential for accurate flow measurements.
Standards and Methods
Viscometer baths are specified in standards such as:
- ASTM D445
- ISO 3104
Available Bath Configurations
For specific bath models, capacities, and configurations, visit:
👉 PSL Rheotek Viscometer Baths
PRODUCT GALLERY
Viscometer Baths
FAQ
You asked, we answered
Is a bath required for all viscosity tests?
For standard kinematic viscosity methods, controlled temperature baths are essential
How stable should a bath be?
Standard test method protocols such as ASTM D445 & ISO 3104 specify a stability within ±0.02 °C or better. To comply with test protocol, it is necessary to validate the temperature stability of the bath using an external precision thermometer.
Can I use water as a bath medium?
Yes, demineralised water is recommended for use at temperatures up to and including 40 degrees C.
How do I get the viscometer into the bath?
Place the glass tube in a viscometer holder and immerse the holder with the viscometer in the constant temperature viscometer bath.
My viscometers are from another manufacturer, can I use them in your bath?
Yes, the baths from PSL Rheotek are compatible with most viscometers and holders. Before measurement it is important to check that the immersion depth of the bath is sufficient and that the aperture in the viscometer bath lid is compatible with the holder.
CUSTOM SOLUTIONS
Searching for custom instrumentation for your unique requirements?
Each PSL Rheotek viscometer system is configured for the owner! A wide variety of international test method protocols are readily available in the software and company specific method protocols are also supported.
