How will you ascertain with the help of lactometer that plenty of water has been added to milk
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Normal milk at 15.55 degree centigrade, has a specific gravity of 1.030 (LR 30). When the reading shows less than LR 30, then it means water has been added to the milk.
A Lactometer works on the concept of buoyancy, making use of Archimedes Principle of density of fluids. A Lactometer is calibrated to the density of milk and any adulteration with water can easily be detected by the reading on the scale.
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