§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 §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 C (130 F) as determined by the test method specified in
NACE (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 §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 46040, Aug. 31, 1993]