Description
Viscometer ASTM D445 and D446 is a three-legged capillary instrument intended for kinematic viscosity measurement of transparent liquids between 200 and 1000 mm²/s. Capillary number 3 and constant K 1,0 define the working window for this uncalibrated glassware under ASTM D445 and D446 practice. Length is approximately 283 mm, supporting convenient immersion in a temperature-controlled bath and straightforward handling at the bench. Because the unit is supplied uncalibrated, laboratories can establish calibration according to their own quality system before reporting results. The three-leg construction aids stable orientation during charging and timing of flow. Offered by manufacturer Witeg as one piece with a net weight of 0,078 kg, the instrument suits routine QC, formulation work and method development where a mid-range capillary class is required. Explicit capillary designation, K value and measuring range allow clear selection against expected sample viscosity for transparent fluids only, without additional purity, sterility or performance statements beyond the manufacturer data.
This article is part of Viscometers, in Density & viscosity measurement.
Key features
- Pack size: 1 pc
- Length: approx. 283 mm
- Capillary no.: 3
- Measuring range: 200–1000 mm²/s
- Constant K: 1,0
- Suitable for: transparent liquids
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Questions about Viscometer ASTM D445 446 200-1000
What is this article?
Viscometer ASTM D445 446 200-1000 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.
Which category should I open next?
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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