Section 326IAC8-21-9. Test methods

   (a) For coatings that are not waterborne (water reducible), the owner or operator shall determine the VOC content of each formulation (less water and less exempt solvents) as applied using manufacturer's supplied data or 40 CFR 60, Appendix A, Method 24*. If there is a discrepancy between the manufacturer's formulation data and the results of the Method 24 analysis, compliance shall be based on the results from the Method 24 analysis. For waterborne (water reducible) coatings, manufacturer's supplied data alone can be used to determine the VOC of each formulation.

  (b) The following test methods apply to cleaning solvents:

(1) For aqueous and semiaqueous cleaning solvents, manufacturers' supplied data shall be used to determine the water content.

(2) For hand wipe cleaning solvents, manufacturers' supplied data or standard engineering reference texts or other equivalent methods shall be used to determine the vapor pressure or VOC composite vapor pressure for blended cleaning solvents.

  (c) Measurements of volatile organic compound emissions for control equipment, subject to section 6 of this rule, shall be conducted in accordance with 326 IAC 8-1-4(d) through 326 IAC 8-1-4(f).

  (d) Except for specialty coatings, any source that complies with the test method requirements of the aerospace NESHAP, 40 CFR 63.750*, is deemed to be in compliance with the requirements of this section.

  *These documents are 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 8-21-9; filed Nov 3, 2009, 3:32 p.m.: 20091202-IR-326090222FRA; errata filed Nov 19, 2009, 10:03 a.m.: 20091216-IR-326090222ACA)