Description
Viscometer ASTM D445/446 with measuring range 6–30 mm²/s is a three-legged capillary instrument for kinematic viscosity determination of transparent liquids. Capillary number 1C, constant K 0,03 and an approximate length of 283 mm define this uncalibrated glass unit for standardised flow-time measurements under ASTM D445 and D446. It is intended for petroleum, chemical and materials laboratories that analyse transparent sample fluids in the mid viscosity band. The three-limb geometry supports immersion in viscosity baths, aiding filling, temperature equilibration and timing during routine determinations. Provided as a single piece from manufacturer Witeg, the viscometer suits quality control and research settings where laboratories perform their own calibration when required. Its range of 6–30 mm²/s addresses transparent media commonly encountered beyond the lowest viscosity grades. Compact overall length integrates readily into standard capillary viscosity bath setups without excess bulk, supporting efficient day-to-day analytical workflows.
This article is part of Viscometers, in Density & viscosity measurement.
Key features
- Pack size: 1 pc
- Capillary no.: 1C
- Measuring range: 6–30 mm²/s
- Constant K: 0,03
- Length: approx. 283 mm
- Design: three-legged, uncalibrated
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Questions about Viscometer ASTM D445 446 6-30
What is this article?
Viscometer ASTM D445 446 6-30 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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