Description
Ubbelohde viscometer 300-3000 mm²/s is a DIN-type capillary instrument for kinematic viscosity measurement across the range 300–3000 mm²/s. Designated size No. IIIc, it has an internal diameter of 2,65 mm and a printed constant K of 3 for straightforward conversion of flow times into viscosity values. Construction and constant marking follow ISO/DIN 3105, DIN 51502, BS 188 and KFT 60-100, ensuring compatibility with established laboratory viscosity methods. The unit is supplied uncalibrated in a four-legged glass configuration suited to immersion in a temperature-controlled bath. From manufacturer Witeg, it is delivered as one piece with a net weight of 0,08 kg, convenient for bench use and storage. The four-limb geometry supports filling, observation of meniscus passage and cleaning between samples. This size is appropriate where higher viscosities than the smaller Ubbelohde capillaries are expected, while remaining within the stated working window. Clear identification of size, constant and standards helps operators maintain consistent documentation when recording efflux times and calculating kinematic viscosity under controlled thermal conditions in quality-control or research settings.
This article is part of Viscometers, in Density & viscosity measurement.
Key features
- Pack size: 1 pc
- Type: Ubbelohde DIN, four-legged
- Size: No. IIIc
- Measuring range: 300–3000 mm²/s
- Internal diameter: 2,65 mm
- Constant K: 3
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Questions about Ubbelohde viscometer 300-3000mm²/s
What is this article?
Ubbelohde viscometer 300-3000mm²/s is the article on this page. Luminix Health distributes Witeg 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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