[Code of Federal Regulations] [Title 40, Volume 18, Parts 260 to 265] [Revised as of July 1, 2000] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR261.22] [Page 54-55] TITLE 40--PROTECTION OF ENVIRONMENT PART 261--IDENTIFICATION AND LISTING OF HAZARDOUS WASTE--Table of Contents Subpart C--Characteristics of Hazardous Waste Sec. 261.22 Characteristic of corrosivity. (a) A solid waste exhibits the characteristic of corrosivity if a representative sample of the waste has either of the following properties: (1) It is aqueous and has a pH less than or equal to 2 or greater than or equal to 12.5, as determined by a pH meter using Method 9040 in ``Test Methods for Evaluating Solid Waste, Physical/Chemical Methods,'' EPA Publication SW-846, as incorporated by reference in Sec. 260.11 of this chapter. (2) It is a liquid and corrodes steel (SAE 1020) at a rate greater than 6.35 mm (0.250 inch) per year at a test temperature of 55 deg.C (130 deg.F) as determined by the test method specified in NACE [[Page 55]] (National Association of Corrosion Engineers) Standard TM-01-69 as standardized in ``Test Methods for Evaluating Solid Waste, Physical/ Chemical Methods,'' EPA Publication SW-846, as incorporated by reference in Sec. 260.11 of this chapter. (b) A solid waste that exhibits the characteristic of corrosivity has the EPA Hazardous Waste Number of D002. [45 FR 33119, May 19, 1980, as amended at 46 FR 35247, July 7, 1981; 55 FR 22684, June 1, 1990; 58 FR 46049, Aug. 31, 1993]