(1) For the purpose of verifying the correctness of the working standards, the Administrator may cause to be prepared at the Mint as many sets of authenticated standard weights and measures as he may deem necessary to be called the secondary standards.
(2) The secondary standards shall be made of such material and according to such design and specifications as may be prescribed and shall be stamped and authenticated by such person or authority as the Central Government may direct-
(3) The secondary standards shall be kept at such places, in such custody and in such manner, as may be prescribed.
(4) A secondary standard shall be verified with the reference standard at least once in every period of five years and shall be marked with the date of verification in the prescribed manner by such person or authority as the Administrator may direct.
(5) A secondary standard which is not so verified and marked within the aforesaid period shall not be deemed legal and shall not be used for the purposes of this Regulation.
Secondary standards.
5. The reference standards shall be kept at such places, in such custody and in such manner as the Administrator may direct.