Description
Ubbelohde viscometer 0,2-1 mm²/s is a DIN-type glass capillary instrument for kinematic viscosity determination of transparent Newtonian liquids in the low-viscosity range. Capillary number 0 provides an internal diameter of 0,36 mm and a printed instrument constant K of 0,001, covering the measuring range 0,2–1 mm²/s. The design follows ISO/DIN 3105, DIN 51502, BS 188 and KFT 60-100, with the constant marked directly on the instrument for convenient reference during routine work. Its four-limb construction supports controlled filling, immersion in a thermostatic bath and accurate efflux timing. Supplied uncalibrated, the viscometer is intended for laboratories that perform their own verification or calibration against reference standards. This model from manufacturer Witeg is suited to quality-control, research and process laboratories in chemistry, petrochemistry, pharmaceuticals and materials science. The single-piece pack allows straightforward stocking of the fine capillary size needed for low kinematic viscosities. Combined with precise temperature control and stopwatch timing, the printed constant enables calculation of kinematic viscosity according to established Ubbelohde methodology.
This article is part of Viscometers, in Density & viscosity measurement.
Key features
- Pack size: 1 pc
- Capillary number: Nr. 0
- Inner diameter: 0,36 mm
- Instrument constant K: 0,001
- Measuring range: 0,2-1 mm²/s
- Calibration: Uncalibrated
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Questions about Ubbelohde viscometer 0.2-1mm²/s
What is this article?
Ubbelohde viscometer 0.2-1mm²/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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