Description
Viscometer ASTM D445 and D446 is a calibrated three-legged capillary instrument for determining the kinematic viscosity of transparent liquids in the range 100–500 mm²/s. It is adjusted to ASTM D445 and D446 as well as ISO 3104 and ISO 3105, with size No. 2B and constant K 0,500. Approximate overall length is 283 mm, supporting clear meniscus observation and reproducible efflux timing in temperature-controlled baths. The geometry suits routine QC and method-compliant work on oils, solvents and other clear fluids where standardized flow-time measurement is required. Supplied as 1 pc with a net weight of 0,081 kg, this glass viscometer from manufacturer Witeg is factory calibrated for direct use in existing timing and bath setups. Three-limb construction aids filling, equilibration and cleaning between samples while preserving the dimensional tolerances demanded by the referenced standards. Laboratories specifying viscosity grades for petroleum, chemical or materials applications can select this size to cover the mid-range window without changing method or apparatus family.
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.: 2B
- Constant K: 0,500
- Measuring range: 100–500 mm²/s
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Questions about Viscometer ASTM D445 446 100-500mm²/s
What is this article?
Viscometer ASTM D445 446 100-500mm²/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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