40 CFR 408.81 - Specialized definitions.
For the purpose of this subpart:
(b) The term oil and grease shall mean those components of a waste water amendable to measurement by the method described in Methods for Chemical Analysis of Water and Wastes, 1971, Environmental Protection Agency, Analytical Quality Control Laboratory, page 217.
Title 40 published on 2015-08-22.
No entries appear in the Federal Register after this date, for 40 CFR Part 408.