S.C. Code Ann. § 46-27-60: Standard weights of bags and packages.

All commercial feeds shall be packed in standard weight bags or packages of twenty-five, fifty, seventy-five, one hundred, one hundred twenty-five, one hundred fifty, one hundred seventy-five or two hundred pounds. The Commissioner may prescribe other standard bag or package weights if they are in the consumer's interest or if they are to promote uniformity or are consistent with good trade practices.