Section 11(3) in The Standards of Weights and Measures (General) Rules, 1987
(3)Nothing in this rule shall apply to the product of an industry which is required by or under any law for the time being in force, to conform to any other specifications with regard to the matters specified in sub-rule (1) or sub-rule (2), if under such law, the product is required to conform to the specifications laid down by the International Organisation of Legal Metrology with regard to the matters aforesaid.
