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Electronic Code of Federal Regulations

e-CFR Data is current as of April 16, 2014

Title 40: Protection of Environment
PART 80—REGULATION OF FUELS AND FUEL ADDITIVES
Subpart D—Reformulated Gasoline


§80.46   Measurement of reformulated gasoline fuel parameters.

(a) Sulfur. Sulfur content of gasoline and butane must be determined by use of the following methods:

(1) The sulfur content of gasoline must be determined by use of American Society for Testing and Materials (ASTM) standard method D2622 (incorporated by reference, see paragraph (h) of this section) or by one of the alternative methods specified in paragraph (a)(3) of this section.

(2) Beginning January 1, 2004, the sulfur content of butane must be determined by the use of ASTM standard test method D 6667-01, entitled, “Standard Test Method for Determination of Total Volatile Sulfur in Gaseous Hydrocarbons and Liquefied Petroleum Gases by Ultraviolet Fluorescence” or by the alternative method specified in paragraph (a)(4) of this section.

(3) Any refiner or importer may use any of the following methods for determining the sulfur content of gasoline; provided the refiner or importer test result is correlated with the method specified in paragraph (a)(1) of this section:

(i) ASTM standard method D5453 (incorporated by reference, see paragraph (h) of this section) or

(ii) ASTM standard method D6920 (incorporated by reference, see paragraph (h) of this section) or

(iii) ASTM standard method D3120 (incorporated by reference, see paragraph (h) of this section) or

(iv) ASTM standard method D7039 (incorporated by reference, see paragraph (h) of this section).

(4) Beginning January 1, 2004, any refiner or importer may determine the sulfur content of butane using any of the following methods; provided the refiner or importer test result is correlated with the method specified in paragraph (a)(2) of this section:

(i) ASTM standard method D 4468-85 (Reapproved 2000), “Standard Test Method for Total Sulfur in Gaseous Fuels by Hydrogenolysis and Rateometric Colorimetry,” or

(ii) ASTM standard method D 3246-96, entitled, “Standard Test Method for Sulfur in Petroleum Gas by Oxidative Microcoulemetry.”

(b) Olefins. Olefin content must be determined by use of the following methods:

(1) Olefin content must be determined by use of ASTM standard method D1319 (incorporated by reference, see paragraph (h) of this section).

(2)(i) Any refiner or importer may determine olefin content using ASTM standard method ASTM D6550 (incorporated by reference, see paragraph (h) of this section) for purposes of meeting any testing requirement involving olefin content; provided that

(ii) The refiner or importer test result is correlated with the method specified in paragraph (b)(1) of this section on a site-specific basis, in order to achieve an unbiased prediction of the result in volume percent, for the method specified in paragraph (b)(1) of this section.

(c) Reid vapor pressure (RVP). Reid vapor pressure must be determined using ASTM standard test method ASTM D5191 (incorporated by reference, see paragraph (h) of this section), except that the following correlation equation must be used:

RVP psi = (0.956 * X)−0.347

RVP kPa = (0.956 * X)−2.39

(d) Distillation. Distillation parameters must be determined using ASTM standard test method D86 (incorporated by reference, see paragraph (h) of this section).

(e) Benzene. (1) Benzene content must be determined using ASTM standard test method ASTM D3606-07 (incorporated by reference, see paragraph (h) of this section), except that.

(2) Instrument parameters shall be adjusted to ensure complete resolution of the benzene, ethanol and methanol peaks because ethanol and methanol may cause interference with ASTM standard method D-3606-99 when present.

(f)(1) Aromatic content must be determined using ASTM D5769 (incorporated by reference, see paragraph (h) of this section), except that the sample chilling requirements in section 8 of this standard method are optional.

(2) [Reserved]

(3)(i) Any refiner or importer may determine aromatics content using ASTM standard method D1319 (incorporated by reference, see paragraph (h) of this section) for purposes of meeting any testing requirement involving aromatics content; provided that

(ii) The refiner or importer test result is correlated with the method specified in paragraph (f)(1) of this section.

(g) Oxygen and oxygenate content analysis. (1) Oxygen and oxygenate content must be determined using ASTM standard method D5599 (incorporated by reference, see paragraph (h) of this section).

(2)(i) When oxygenates present are limited to MTBE, ETBE, TAME, DIPE, tertiary-amyl alcohol and C1 to C4 alcohols, any refiner, importer, or oxygenate blender may determine oxygen and oxygen content using ASTM standard method D4815 (incorporated by reference, see paragraph (h) of this section) for purposes of meeting any testing requirement; provided that:

(ii) The refiner or importer test result is correlated with the method specified in paragraph (g)(1) of this section.

(h) Materials incorporated by reference. The Director of the Federal Register approved the incorporation by reference of the documents listed in this section as prescribed in 5 U.S.C. 552(a) and 1 CFR 51. Anyone may inspect copies at the U.S. EPA, Air and Radiation Docket and Information Center, 1301 Constitution Ave., NW., Room B102, EPA West Building, Washington, DC, 20460, under EPA docket ID Number EPA-HQ-OAR-2008-0558, or at the National Archives and Records Administration (NARA). The telephone number for the Air Docket Public Reading Room is (202) 566-1742. For information on the availability of this material at NARA, call 202-741-6030 or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html. For further information on these test methods, please contact the Environmental Protection Agency at 734-214-4582.

(1) ASTM material. Anyone may purchase copies of these materials from the American Society for Testing and Materials (ASTM), 100 Barr Harbor Dr., West Conshohocken, PA 19428-2959, or by contacting ASTM customer service at 610-832-9585, or by contacting the email address of service@astm.org from the ASTM Web site of http://www.astm.org.

(i) ASTM standard method D3606-07 (“ASTM D3606”), Standard Test Method for Determination of Benzene and Toluene in Finished Motor and Aviation Gasoline by Gas Chromatography, approved November 1, 2007.

(ii) ASTM standard method D1319-03e1 (“ASTM D1319”), Standard Test Method for Hydrocarbon Types in Liquid Petroleum Products by Fluorescent Indicator Adsorption, approved November 1, 2003.

(iii) ASTM standard method D6550-05 (“ASTM D6550”), Standard Test Method for Determination of Olefin Content of Gasolines by Supercritical-Fluid Chromatography, approved November 1, 2005.

(iv) ASTM standard method D4815-04 (“ASTM D4815”), Standard Test Method for Determination of MTBE, ETBE, TAME, DIPE, tertiary-Amyl Alcohol and C1 to C4 Alcohols in Gasoline by Gas Chromatography, approved November 1, 2004.

(v) ASTM standard method D2622-05 (“ASTM D2622”), Standard Test Method for Sulfur in Petroleum Products by Wavelength Dispersive X-Ray Fluorescence Spectrometry, approved November 1, 2005.

(vi) ASTM standard method D3246-96 (“ASTM D3246”), Standard Test Method for Sulfur in Petroleum Gas by Oxidative Microcoulometry.

(vii) ASTM standard method D5191-07 (“ASTM D5191”), Standard Test Method for Vapor Pressure of Petroleum Products (Mini Method), approved May 1, 2007.

(viii) ASTM standard method D5599-00(2005) (“ASTM D5599”), Standard Test Method for Determination of Oxygenates in Gasoline by Gas Chromatography and Oxygen Selective Flame Ionization Detection, approved November 1, 2005.

(ix) ASTM standard method D5769-04 (“ASTM D5769”), Standard Test Method for Determination of Benzene, Toluene, and Total Aromatics in Finished Gasolines by Gas Chromatography/Mass Spectrometry, approved May 1, 2004.

(x) ASTM standard method D86-07b (“ASTM D86”), Standard Test Method for Distillation of Petroleum Products at Atmospheric Pressure, approved November 15, 2007.

(xi) ASTM standard method D5453-08a (“ASTM D5453”), Standard Test Method for Determination of Total Sulfur in Light Hydrocarbons, Spark Ignition Engine Fuel, Diesel Engine Fuel, and Engine Oil by Ultraviolet Fluorescence, approved February 1, 2008.

(xii) ASTM standard method D6920-07 (“ASTM D6920”), Standard Test Method for Total Sulfur in Naphthas, Distillates, Reformulated Gasolines, Diesels, Biodiesels, and Motor Fuels by Oxidative Combustion and Electrochemical Detection, approved December 1, 2007.

(xiii) ASTM standard method D3120-06e1 (“ASTM D3120”), Standard Test Method for Trace Quantities of Sulfur in Light Petroleum Hydrocarbons by Oxidative Microcoulometry, approved December 1, 2006.

(xiv) ASTM standard method D7039-07 (“ASTM D7039”), Standard Test Method for Sulfur in Gasoline and Diesel Fuel by Monochromatic Wavelength Dispersive X-ray Fluorescence Spectrometry, approved May 1, 2007.

(xv) ASTM standard method D6667-01 (“ASTM D6667”), Standard Test Method for Determination of Total Volatile Sulfur in Gaseous Hydrocarbons and Liquefied Petroleum Gases by Ultraviolet Fluorescence.

(xvi) ASTM standard method D4468-85 (reapproved 2000) (“ASTM D4468”), Standard Test Method for Total Sulfur in Gaseous Fuels by Hydrogenolysis and Rateometric Colorimetry.

(2) [Reserved]

[59 FR 7813, Feb. 16, 1994, as amended at 59 FR 36961, July 20, 1994; 61 FR 58306, Nov. 13, 1996; 63 FR 63793, Nov. 17, 1998; 65 FR 6822, Feb. 10, 2000; 65 FR 53189, Sept. 1, 2000; 66 FR 17263, Mar. 29, 2001; 67 FR 8737, Feb. 26, 2002; 67 FR 40181, June 12, 2002; 68 FR 56781, Oct. 2, 2003; 68 FR 57819, Oct. 7, 2003; 71 FR 16499, Apr. 3, 2006; 73 FR 74355, Dec. 8, 2008; 74 FR 6233, Feb. 6, 2009; 76 FR 65385, Oct. 21, 2011]



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