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RANDHAWA GLOBAL Borosilicate Glass 3.3 Ostwald Viscometer, RG - 22098 is a laboratory instrument used to measure the viscosity of liquids. Viscosity is a property that describes a fluid's resistance to flow, and it is crucial in various scientific and industrial applications, including the food industry, pharmaceuticals, and chemical engineering. The Ostwald viscometer operates on the principle of measuring the time it takes for a liquid to flow through a narrow capillary tube under the influence of gravity.
Key components and principles of the Ostwald viscometer:
U-Shaped Tube: The core of an Ostwald viscometer consists of a U-shaped glass tube, which is open at both ends. One arm of the U-tube is wider and serves as a reservoir for the liquid being tested, while the other arm is a narrow capillary tube through which the liquid flows.
Timing Marks: The capillary tube has timing marks etched or marked along its length. These marks provide a reference for measuring the time it takes for the liquid to travel a specific distance in the capillary.
Temperature Control: Accurate viscosity measurements are temperature-sensitive. Many Ostwald viscometers have a temperature control jacket or a water bath to maintain a constant and precisely controlled temperature during the test.
The procedure for using an Ostwald viscometer is as follows:
The viscometer is filled with the liquid to be tested, which is drawn up into the wider arm of the U-tube.
A stopwatch is started as soon as the liquid reaches a specific reference mark on the timing scale.
The liquid flows under the influence of gravity through the narrow capillary tube, and the stopwatch is stopped when it reaches another reference mark.
The time it took for the liquid to travel the known distance in the capillary tube is recorded.
The viscosity of the liquid is calculated using the specific formula associated with the particular viscometer design and the measured time.
The viscosity measurement is often expressed in units such as poise (P) or centipoise (cP), depending on the system of units used.
The Ostwald viscometer is widely used for routine viscosity measurements of liquids with Newtonian behavior, where viscosity remains constant regardless of the applied shear stress. However, it may not be suitable for non-Newtonian fluids, which exhibit varying viscosity under different shear conditions. For such fluids, specialized viscometers like rotational viscometers or rheometers are preferred. Despite its limitations, the Ostwald viscometer remains a valuable tool for quick and relatively simple viscosity determinations in many laboratory settings.

Product Name	Specifications	Expected Price	Dispatch Time	Discount
BALAJI INDIA Ubbelohde Viscometer for Transparent Liquids with Calibration Certificate, SIZE - 1C	Color Transparent \| Included Components Calibration Certificate at 40C	₹7,551	11 days	--
Biohall 80-100 Seconds Flow Time Clear Ostwald Viscometer College Pattern, BLS.VM.01 (Pack of 2)	Color Clear \| Material Borosilicate Glass 3.3	₹860	15 days	--
RANDHAWA GLOBAL Borosilicate Glass 3.3 Ostwald Viscometer, RG - 22098	--	₹553	3 days	38.49% OFF
RANDHAWA GLOBAL Borosilicate Glass 3.3 Ostwald Viscometer, RG-93301 (Pack of 2 Pcs)	Color Transparent \| Material Borosilicate Glass 3.3	₹931	3 days	76.72% OFF

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