The chief executive officer of each municipality required to appoint a sealer under the provisions of this chapter shall procure, at the expense of the municipality, and shall keep, at all times, a complete set of weights and measures and other apparatus, of such materials and construction as the Commissioner of Weights and Measures may direct. All such weights, measures and other apparatus, having been tried and accurately proven by said commissioner, shall be sealed and certified to by him and shall then be deposited with and preserved by the sealer as public standards for such municipality. Whenever any municipality neglects, for six months, to do so, the clerk or comptroller of such municipality, on notification and request by the Commissioner of Weights and Measures, shall provide such standards and cause the same to be tried, sealed and deposited, at the expense of the municipality.