Viscosity Apparatus Stokes Method Manufacturer,Supplier and Exporter in India
Product Code : ILS-EAST-10850
Indian Lab Suppliers supplies the Viscosity Apparatus Stokes Method (Product ID: 10850) as part of its elasticity and surface tension range. It finds the viscosity of a liquid from the terminal speed of small steel balls falling through it.
Quick Answer
A borosilicate glass tube about one metre long is held vertically between two upright bars by clamps on a heavy cast iron base. The lower end is closed with a plain rubber cork and the upper end has a rubber cork with a funnel for dropping the balls. Two rubber-band index marks set the timing distance, and six steel balls of different diameters are supplied; lead shot is not included. Timing the fall at terminal speed v gives η = 2r²(ρ−σ)g/(9v), where r is the ball radius and ρ and σ are the densities of ball and liquid. Please confirm the tube bore at quotation. Handle the glass tube with care.
Key Specifications
| Parameter | Detail |
|---|---|
| Tube | Borosilicate glass, about 1 m long |
| Stand | Two upright bars with clamps, heavy cast iron base |
| Ends | Plain rubber cork below; rubber cork with funnel above |
| Included | 2 rubber-band index marks, 6 steel balls of different diameters |
| Not included | Lead shot |
Where This Is Used
Used for Stokes’ law viscosity practicals with oils and glycerine; see also Viscometer Searle's Pattern (Product ID: 10851). Browse the full Elasticity and Surface Tension range or related Properties of Matter products.
Frequently Asked Questions
How is viscosity found?
From the terminal speed of a steel ball falling between the two index marks.
How many balls are included?
Six steel balls of different diameters.
How long is the tube?
About one metre.
Related Categories
Elasticity and Surface Tension · Properties of Matter · Physics Lab Equipment
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