Chemicals used as boiler water additives shall must meet the requirements in Code of Federal Regulations, title 21, part 173, subpart D, section 173.310.P1
Minn. R. agency 144, ch. 4626, TOXIC SUPPLIES AND APPLICATIONS, pt. 4626.1630
Statutory Authority: MS s 31.101; 31.11; 144.05; 144.08; 144.12; 157.011