South Dakota Codified Laws
Chapter 60 - South Dakota School Of Mines And Technology
Section 13-60-6 - Assays and tests made at mining experiment station--Charges.

13-60-6. Assays and tests made at mining experiment station--Charges.
Assays shall be made at such station for the citizens of this state on ores and minerals to determine the percentage of valuable contents at a nominal charge only, the charge to be fixed by the Board of Regents; also tests on a working scale to determine the most suitable method of treatment at a nominal charge only, to be determined by such board.

Source: SDC 1939, ยง15.1402.