Ind. Code § 24-6-3-1
The:
(2) weights, measures, balances, and apparatus as may be added by the division of weights and measures and verified by the National Institute of Standards and Technology;
are the standards by which all state, county, and city standards shall be tried, proved, and sealed.
As amended by P.L.3-1989, SEC.142; P.L.2-1992, SEC.749.