[Code of Federal Regulations] [Title 40, Volume 8] [Revised as of July 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR61.137] [Page 87] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 61_NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS --Table of Contents Subpart L_National Emission Standard for Benzene Emissions from Coke By- Product Recovery Plants Sec. 61.137 Test methods and procedures. (a) Each owner or operator subject to the provisions of this subpart shall comply with the requirements in Sec. 61.245 of 40 CFR part 61, subpart V. (b) To determine whether or not a piece of equipment is in benzene service, the methods in Sec. 61.245(d) shall be used, except that, for exhausters, the percent benzene shall be 1 percent by weight, rather than the 10 percent by weight described in Sec. 61.245(d).