part_subject: "IDENTIFICATION AND LISTING OF HAZARDOUS WASTE"
subpart_code: "C"
subpart_subject: "Characteristics of Hazardous Waste"
section_number: "261.22"
section_subject: "Characteristic of corrosivity."
cfr_reference: "40 CFR 261.22"
title_name: "Title 40"
title_subject: "Protection of Environment"
parts_covered: "Parts 260 to 265"
revised_date: "Revised as of July 1, 2019"
publication_date: "As of July 1, 2019"
contains_description: "Containing a codification of documents of general applicability and future effect"
publication_info: "Published by the Office of the Federal Register National Archives and Records Administration as a Special Edition of the Federal Register"
---
(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 9040C 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 Method 1110A in “Test Methods for Evaluating Solid Waste, Physical/Chemical Methods,” EPA Publication SW-846, and 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.