The Standards of Weights and Measures (Enforcement) Act,1985
Section 74. Act not to apply in certain cases
The provisions of this Act in so far as they relate to the verification and stamping of weights and measures, shall not apply to any weight or measure,-
(a)Used in any factory exclusively en aged in the manufacture of any arms, or ammunition, or both, for the use of the Armed Forces of the Union;
(b) Used for scientific investigation or for research
(c) Manufactured exclusively for export.