Standards of Weights and Measures Act : Base unit of amount of substance. Indian Bare Acts :

Standards of Weights and Measures Act,1976

Act No : 60

Section : Base unit of amount of substance.

11. Base unit of amount of substance. (1) The base unit of amount of substance shall be the mole. (2) The "mole is the amount of substance of a system which contains as many elementary entities as there are atoms in 0.012 kilogram of carbon 12. (3) When the mole is used, the elementary entities shall invariably be' specified and may be atoms, molecules, ions, electrons, other particle, or specified groups of such particles.