Question

Quality of milk is measured by:​

Answer 1

Lactometer is a hydrometer used to measure specific gravity of milk and scale is limited to the specific gravity of milk.

Answer 2

Lactometer is the instrument that is used for measuring the quality of milk.

Explanation:

• The Lactometer is the hydrometer that determines the ‘purity of milk’ by checking its density.  

• The lactometer consists of a ‘cylindrical vessel’ made of the ‘glass tube’.  

• The milk is put into a test tube and the lactometer is put into the test tube.  

• The meter bulb of the lactometer floats in the milk.  

• The markings on the lactometer will give the readings for the density of milk.