Standards of Weights and Measures Act, 1976
20. Standard weight or measure. -
(1) Any weight or measure which conforms to the standard units of such weight or measure and also conforms to such of the provisions of Sees. 15 to 19 (both inclusive) as are applicable to it shall be the standard weight or measure.
(2) Any numeral which conforms to the provisions of Sec. 13 shall be the standard numeral.