[Code of Federal Regulations] [Title 40, Volume 6] [Revised as of July 1, 2002] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR60.31d] [Page 93] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY PART 60--STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES--Table of Contents Subpart Cd--Emissions Guidelines and Compliance Times for Sulfuric Acid Production Units Sec. 60.31d Emissions guidelines. Sulfuric acid production units. The emission guideline for designated facilities is 0.25 grams sulfuric acid mist (as measured by EPA Reference Method 8 of appendix A of this part) per kilogram (0.5 pounds per ton) of sulfuric acid produced, the production being expressed as 100 percent sulfuric acid.