Description
Viscometer ASTM D445 and D446 is a calibrated three-legged capillary instrument for kinematic viscosity determination of transparent liquids in the measuring range 200–1000 mm²/s. Adjusted to ASTM D445 and D446 together with ISO 3104 and ISO 3105, it is size No. 3 with constant K 1,0 and an approximate length of 283 mm. The design supports clear observation of the meniscus and reproducible flow-time measurement in temperature-controlled baths used for oils, solvents and other transparent fluids. Factory calibration allows direct deployment in routine QC and standards-compliant laboratory workflows. Supplied as 1 pc with a net weight of 0,081 kg, the instrument from manufacturer Witeg fits existing bath and timing equipment without further sizing changes. Three-limb construction simplifies filling, thermal equilibration and cleaning between runs while holding the dimensional requirements of the cited methods. Laboratories that need coverage of the 200–1000 mm²/s window can select this size to extend ASTM/ISO viscosity work across a broader mid-to-high range with consistent apparatus geometry.
This article is part of Viscometers, in Density & viscosity measurement.
Key features
- Pack size: 1 pc
- Type: Three-legged capillary viscometer
- Standards: ASTM D445, D446, ISO 3104, ISO 3105
- Size No.: 3
- Constant K: 1,0
- Measuring range: 200–1000 mm²/s
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Questions about Viscometer ASTM D445 446 200-1000mm²/s
What is this article?
Viscometer ASTM D445 446 200-1000mm²/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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