Description
Ubbelohde viscometer (ASTM) 545 40 is a precision capillary instrument for determining kinematic viscosity, calibrated for automatic measurements. It uses capillary number 4 with viscometer constant K = 10 and includes a filling and cleaning tube for convenient sample handling and rinsing between determinations. The design supports reproducible efflux-time measurement when operated with compatible automatic viscosity systems carrying the AVS® mark. Typical laboratory applications include quality control, formulation work and process monitoring in chemical, petroleum and polymer environments where ASTM-type Ubbelohde geometry is required. Supplied as a single piece with a net weight of 0,34 kg from manufacturer SI Analytics - a Xylem brand, the unit is intended for integration into automated measuring setups. The combination of defined capillary constant, filling/cleaning tube and automatic-measurement calibration helps laboratories maintain consistent viscosity data across repeated runs while simplifying routine maintenance of the measuring capillary.
This article is part of Viscometers, in Density & viscosity measurement.
Key features
- Pack size: 1 pc
- Type: Ubbelohde viscometer (ASTM)
- Capillary number: 4
- Viscometer constant: K = 10
- Calibration: For automatic measurements
- EAN: 4064664035187
- Technical Information Sheet:
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Questions about 545 40, Ubbelohde viscometer (ASTM), calibrated for automatic measurements, with
What is this article?
545 40, Ubbelohde viscometer (ASTM), calibrated for automatic measurements, with is the article on this page. Luminix Health distributes SI Analytics - a Xylem brand for laboratory use. It sits in Viscometers, inside Density & viscosity measurement, in Lab instruments.
A capillary viscometer times the flow of a liquid through a tube. A rotational viscometer twists a spindle in the liquid. Both need a stated temperature. Kinematic and dynamic viscosity are different numbers. The capillary size has to put the flow time in the range the method allows.
Density is mass divided by volume. A hydrometer floats at a depth that depends on the density of the liquid. A pycnometer is a vessel of known volume that is weighed full. Viscosity is the resistance to flow. A capillary viscometer times how long a volume takes to fall through a tube. Both measurements need a stated temperature, because liquids change density and viscosity as they warm. The units trace to the BIPM and to NIST.
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The category is Density & viscosity measurement. The sub-category is Viscometers. The catalogue is Lab instruments.
Shelves beside this one are Hydrometers and Density meters & pycnometers.
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