S.C. Code § 39-33-1250
It shall be the responsibility of the receivers or buyers to provide equipment necessary to obtain accurate weights and accurate and representative samples for determining the butterfat content of milk or cream received and paid for on the basis of weight and test. The Commissioner of Agriculture shall cause to be made such tests for accuracy on any equipment necessary or incidental to the ascertainment of accurate weights and the taking of accurate representative samples for determining the butterfat content of milk or cream in the State, and he shall condemn any equipment found to be of doubtful accuracy in weighing, sampling or testing for butterfat when the basis of payment is weight and butterfat content, if the receiver or buyer has been given a reasonable time to correct or replace such equipment.
S.C. Code § 39-33-1250