Relative densoty hydrometer puridy of milk

A lactometer is a specialized hydrometer used measure the relative density and purity of milk. A lactometer has graduations from 1 3 (top-bottom) between the uppermost marking of W representing the density of water and the lowermost marking of M representing the density of pure milk.

Explanation:

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Explanation:

A lactometer is a specialized hydrometer used measure the relative density and purity of milk. ... If the milk is pure the readings will be close to 1 and if the amount of water in the milk increases then the markings will be close to 3.