Nicholson Hydrometer Manufacturer,Supplier and Exporter
Product Code : SEL-PLE-10175
Quick Answer: The Nicholson hydrometer is a constant-immersion hydrometer for measuring specific gravity: a cylinder with conical caps, a weighted lower cone and a spindle topped by a disc, 26 cm high with a 5 cm radius.
Last updated: October 2026
Key Features
Cylinder capped at either end by conical caps
Additional cone attached at one end by a curved metal strip
Beads inside act as a weight
Long spindle at the top end with a metal disc cap
Height 26 cm, radius 5 cm
Technical Specifications
Specification
Value
Body
Cylinder with conical end caps
Ballast
Beads inside
Top
Long spindle capped with a metal disc
Height
26 cm
Radius
5 cm
About This Product
Weights placed on the top disc sink the instrument to a fixed mark on the spindle, first on its own and then with a sample resting on the disc or held in the lower cone. Comparing the weights needed gives the mass of the sample and, from the reading with the sample under water, its specific gravity. It is used for practical work on specific gravity in school and college labs. School Educational Instrument can supply the Nicholson Hydrometer to schools and colleges in Niger, Zimbabwe, South Sudan, Mozambique, Togo and Namibia.
Frequently Asked Questions
What are the dimensions of the Nicholson hydrometer?
