From: Debra Jacobson (email@example.com)
Date: Fri, 11 Apr 2003 14:03:34
A common place a printer may generate corrosive hazardous wastes is in the prepress area of a printing facility (plate or film processing solutions). The following is a summary of how corrosive waste is determined.
What is a corrosive hazardous waste? A "solid waste" exhibits the characteristic of Corrosivity and is assigned the waste code D002 if a representative sample of the waste has either of the following properties:
-It is aqueous and has a pH less than or equal to 2 or greater than or equal to 12.5, as determined by Method 9040 in "Test Methods for Evaluating Solid Waste, Physical/Chemical Methods." EPA Publication SW-846.
-It is a liquid and corrodes steel (SAE 1020) at a rate greater than 6.35 mm (0.25 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.
The current federal definition of corrosive only includes liquids or materials that are aqueous. In many circumstances, solid materials that are thought to be corrosive may not meet this definition unless they also meet the definition of aqueous (the material has enough free hydrogen ions to be measured with a pH meter). Although EPA does not currently regulate corrosives that are non-aqueous solids, some states have regulations that include non-aqueous solids that are corrosive.
To access 40 CFR 261.22 on-line, visit http://www.access.gpo.gov/nara/cfr/cfr-retrieve.html#page1
Source: "reg of the day" listserv operated by Tammy Silverthorne @ the Environmental Resource Center