Section 5. Towns shall keep the following standard weights, measures and balances: A set of avoirdupois weights consisting of fifty, twenty-five, twenty, ten, five, four, two and one pounds, and eight, four, two, one, one half, one quarter, one eighth and one sixteenth ounces; a set of dry measures consisting of one half-bushel, one eight-quart, one four-quart, one two-quart, one one-quart, one pint and one half-pint; a set of liquid measures consisting of one gallon, one half-gallon, one quart, one pint, one half-pint and one gill; one balance; one yard measure; and each town hereafter incorporated shall be furnished by the director with a complete set of the foregoing standards. Each city and each shire town shall keep the meter and kilogram and the standard troyweights designated by the director.