A licensed public weighmaster shall: (1) Keep the scale or scales upon which he weighs any commodity or thing, in conformity with the standards of weights and measures; (2) carefully and correctly weigh and certify the gross, tare and net weights of any load of any commodity or thing required to be weighed; and (3) without charge, weigh any commodity or thing brought to his scale by an inspector authorized by the director, and issue a certificate of the weights thereof.

[1969 ex.s. c 100 § 22.]