Standards of Weights and Measures (Enforcement) Act, 1985
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 engaged 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.