Description
518 30 Micro-Ostwald viscometer is an uncalibrated capillary instrument intended for laboratory determination of liquid viscosity on the micro scale. It is equipped with capillary number III and carries the constant K = 1, making it suitable for kinematic viscosity measurements of Newtonian fluids in research, quality-control and teaching environments. The single-piece unit has a net weight of 0,275 kg and belongs to the classic Ostwald family of glass capillary viscometers, allowing straightforward timing of flow through a defined capillary under gravity. Manufactured by SI Analytics - a Xylem brand, the device is designed for use with small sample volumes and integrates readily into standard viscosity-measurement workflows. Its uncalibrated status permits laboratories to apply their own calibration procedures when required. The robust construction supports repeated immersion and cleaning cycles typical of routine analytical work. This micro-Ostwald model is therefore a practical choice for laboratories that need a reliable capillary viscometer with a defined constant for comparative or absolute viscosity studies.
This article is part of Viscometers, in Density & viscosity measurement.
Key features
- Pack size: 1 pc
- Type: Micro-Ostwald viscometer
- Capillary number: III
- Constant K: 1
- Calibration: Uncalibrated
- EAN: 4064664035897
- Technical Information Sheet:
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Questions about 518 30, Micro-Ostwald viscometer, not calibrated, Capillary No. III, Constant K
What is this article?
518 30, Micro-Ostwald viscometer, not calibrated, Capillary No. III, Constant K is the article on this page. Luminix Health distributes SI Analytics - a Xylem brand 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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Shelves beside this one are Hydrometers and Density meters & pycnometers.
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