Mass. Gen. Laws ch. 98 § 3
The following weighing and measuring devices now in the custody of the deputy director shall be the sole authorized standards, except as provided in sections four, nine and ten of this chapter, and in section one of chapter ninety-nine, and with the standards supplied under authority of said sections shall be called the state standards: a set of dry measures consisting of one half-bushel, eight, four, two and one quarts, one pint and one half-pint; a set of liquid measures consisting of one gallon, two and one quarts, one pint, two and one gills; a set of apothecaries' liquid measures consisting of one gallon, four, two and one pints, twelve, eight, six, four, three, two and one ounces, four, two and one drams, ten and five minims; a set of avoirdupois weights consisting of fifty, twenty-five, twenty, ten, five, four, three, two and one pounds, eight, six, four, three, two and one ounces, eight, six, four, three, two and one drams; a set of troy weights consisting of five thousand, three thousand, two thousand, one thousand, five hundred, three hundred, two hundred, one hundred, fifty, thirty, twenty, ten, five, three, two and one penny-weights, ten, six, five, four, three, two and one grains, one half a grain, twelve, ten, six, five, four, three, two and one ounces, five tenths, four tenths, three tenths, two tenths, one tenth, five one-hundredths, four one-hundredths, three one-hundredths, two one-hundredths, one one-hundredth, five one-thousandths, four one-thousandths, three one-thousandths, two one-thousandths, one one-thousandth, five ten-thousandths, four ten-thousandths, three ten-thousandths, two ten-thousandths and one ten-thousandth of an ounce; a set of apothecaries' weights consisting of twelve, six, two and one ounces, four, two and one drams, two and one scruples, ten, five, four, three, two and one grains, one half, one quarter and one tenth grains; a yard measure and three sets of balances.
Such standards shall be kept by the deputy director, and he shall, at least once in five years, cause them to be compared with the standards of the United States government, and, if necessary, corrected to agree therewith.
Mass. Gen. Laws ch. 98, § 3