Centrifuge glass tubesThe tubes are differently graduated and serve different purposes. Please refer to the detailed picture of the tubes that can be found to the right or here when reading.
For coarse reading, when product is of unknown composition and high sediment contents can be expected.
Type 2, 3, 4 and 5
Are used for accurate reading of sediment contents
Is used for accurate reading of a lighter liquid(oil) in a heavier liquid(water) up to a content of 2%.
Is used for sample collection, i.e. a selected phase can be sucked out of the tubes after centrifugation and analysed further by other methods.