Section 307.3590  Potassium Ferricyanide Titration Method

The Board incorporates by reference 40 CFR 425, Appendix A, as adopted at 53 Fed. Reg. 9181, March 21, 1988.  This incorporation includes no later amendments or editions.

(Source:  Added at 13 Ill. Reg. 1794, effective January 31, 1989)