Section 45.75.080 - General testing(a) The director may inspect and test, to ascertain if they are correct, all weights and measures kept, offered, or exposed for sale. The director shall, at least annually and more often as considered necessary, inspect and test, to ascertain if they are correct, all weights and measures commercially used in (1) determining the weight, measurement, or count of commodities or things sold, or offered or exposed for sale, on the basis of weight or of measure;(2) computing the basic charge or payment for services rendered on the basis of weight or of measure or count; or(3) determining weight or measurement when a charge is made for this determination.(b) However, in the case of single-service devices, that is, devices designed to be used commercially only once and to be then discarded, and in the case of devices uniformly mass-produced, as by means of a mold or die, and not susceptible of individual adjustment, the inspection and testing of each individual device is not required and the inspecting and testing requirements of this section are satisfied when inspections and tests are made on representative samples of the devices. The lots from which representative samples are inspected and tested are held correct or incorrect upon the basis of the results of the inspections and tests on the samples.