Section 326IAC8-21-5. Solvent cleaning

   The owner or operator of a source that is subject to this rule shall comply with the following solvent cleaning requirements:

(1) Cleaning solvents used in hand wipe cleaning operations shall:

(A) meet the definition of aqueous cleaning solvent; or

(B) have a VOC composite vapor pressure less than or equal to forty-five (45) mmHg at twenty (20) degrees Celsius.

(2) The cleaning operations in the aerospace NESHAP at 40 CFR 63.744(e)* are exempt from the requirements in subdivision (1).

(3) Cleaning solvents used in the flush cleaning of parts, assemblies, and coating unit components shall be emptied into an enclosed container or collections system that is kept closed when not in use or captured with wipers provided they comply with the housekeeping requirements in subdivision (5).

(4) All spray guns must be cleaned by one (1) or more of the methods in the aerospace NESHAP at 40 CFR 63.744(c)(1) through 40 CFR 63.744(c)(5)*.

(5) All fresh and used cleaning solvents, except semiaqueous cleaning solvents, used in solvent cleaning operations shall be stored in containers that shall be kept closed at all times except when filling or emptying. The owner or operator shall implement handling and transfer procedures to minimize spills during filling and transferring the cleaning solvent to or from enclosed systems, vats, waste containers, and other cleaning operation equipment that holds or stores fresh or used cleaning solvents. The following are exempt from requirements in this subdivision:

(A) Aqueous cleaning solvents.

(B) Cotton tipped swabs used for very small cleaning operations.

  *This document is incorporated by reference. Copies may be obtained from the Government Printing Office, 732 North Capitol Street NW, Washington, D.C. 20401 or are available for review and copying at the Indiana Department of Environmental Management, Office of Air Quality, Indiana Government Center North, Tenth Floor, 100 North Senate Avenue, Indianapolis, Indiana 46204. (Air Pollution Control Division; 326 IAC 8-21-5; filed Nov 3, 2009, 3:32 p.m.: 20091202-IR-326090222FRA; errata filed Nov 19, 2009, 10:03 a.m.: 20091216-IR-326090222ACA)