[Code of Federal Regulations]
[Title 40, Volume 16]
[Revised as of July 1, 2006]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR80.46]
[Page 652-654]
TITLE 40--PROTECTION OF ENVIRONMENT
CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
PART 80_REGULATION OF FUELS AND FUEL ADDITIVES--Table of Contents
Subpart D_Reformulated Gasoline
Sec. 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 D
2622-03, entitled ``Standard Test Method for Sulfur in Petroleum
Products by Wavelength Dispersive X-Ray Fluorescence Spectrometry'' or
by one of the alternative method 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 D 5453-03a, entitled, ``Standard Test
Method for Determination of Total Sulfur in Light Hyrdocarbons, Motor
Fuels and Motor Oils by Ultraviolet Fluorescence,'' or
(ii) ASTM standard method D 6920-03, entitled, ``Standard Test
Method for Total Sulfur in Naphthas, Distillates, Reformulated
Gasolines, Diesels, Biodiesels, and Motor Fuels by Oxidative Combustion
and Electrochemical Detection,'' or
(iii) ASTM standard method D 3120-03a, entitled, ``Standard Test
Method for Trace Quantities of Sulfur in Light Liquid Petroleum
Hydrocarbons by Oxidative Microcoulometry.''
(iv) ASTM standard method D 7039-04, entitled, ``Standard Test
Method for Sulfur in Gasoline and Diesel Fuel by Monochromatic
Wavelength Dispersive X-ray Fluorescence Spectrometry.''
(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:
[[Page 653]]
(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 shall be determined using ASTM standard
method D 1319B03, entitled ``Standard Test Method for Hydrocarbon Types
in Liquid Petroleum Products by Fluorescent Indicator Adsorption.''
(c) Reid vapor pressure (RVP). Reid vapor pressure (RVP) shall be
determined using ASTM standard method D 5191-01, entitled ``Standard
Test Method for Vapor Pressure of Petroleum Products (Mini Method),''
except that the following correlation equation must be used:
RVP psi = (0.956 * X) -0.347
RVP kPa = (0.956 * X) -2.39
Where:
X = total measured vapor pressure in psi or kPa.
(d) Distillation. Distillation parameters shall be determined using
ASTM standard method D 86-01, entitled'' Standard Test Method for
Distillation of Petroleum Products at Atmospheric Pressure.''
(e) Benzene. (1) Benzene content shall be determined using ASTM
standard method D-3606-99, entitled ``Standard Test Method for
Determination of Benzene and Toluene in Finished Motor and Aviation
Gasoline by Gas Chromatography''; 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 shall be determined using ASTM D 5769-98,
entitled, ``Standard Test Method for Determination of Benzene, Toluene,
and Total Aromatics in Finished Gasolines by Gas Chromatography/Mass
Spectrometry'', 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 D 1319-03, entitled ``Standard Test Method for
Hydrocarbon Types in Liquid Petroleum Products by Flourescent Indicator
Adsorption,'' 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 shall be determined using ASTM standard method D 5599-00,
entitled ``Standard Test Method for Determination of Oxygenates in
Gasoline by Gas Chromatography and Oxygen Selective Flame Ionization
Detection.''
(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 D 4815-03 entitled, ``Standard
Test Method for Determination of MTBE, ETBE, TAME, DIPE, tertiary-Amyl
Alcohol and C1 to C4 Alcohols in Gasoline by Gas
Chromatography,'' 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) Incorporations by reference. ASTM standard methods D 3606-99,
entitled ``Standard Test Method for Determination of Benzene and Toluene
in Finished Motor and Aviation Gasoline by Gas Chromatography;'' D 1319-
03, entitled ``Standard Test Method for Hydrocarbon Types in Liquid
Petroleum Products by Fluorescent Indicator Adsorption;'' D 4815-03,
entitled ``Standard Test Method for Determination of MTBE, ETBE, TAME,
DIPE, tertiary-Amyl Alcohol and C1 to C4 Alcohols
in Gasoline by Gas Chromatography;'' D 2622-03, entitled ``Standard Test
Method for Sulfur in Petroleum Products by Wavelength Dispersive X-Ray
Fluorescence Spectrometry;'' D 3246-96, entitled ``Standard Test Method
for Sulfur in Petroleum Gas by Oxidative Microcoulometry;'' D 5191-01,
entitled,
[[Page 654]]
``Standard Test Method for Vapor Pressure of Petroleum Products (Mini
Method);'' D 5599-00, entitled, ``Standard Test Method for Determination
of Oxygenates in Gasoline by Gas Chromatography and Oxygen Selective
Flame Ionization Detection;'' D 5769-98, entitled, ``Standard Test
Method for Determination of Benzene, Toluene, and Total Aromatics in
Finished Gasolines by Gas Chromatography/Mass Spectrometry,'' and D 86-
01, entitled, ``Standard Test Method for Distillation of Petroleum
Products at Atmospheric Pressure;'' D 5453-03a, entitled, ``Standard
Test Method for Determination of Total Sulfur in Light Hydrocarbons,
Motor Fuels and Oils by Ultraviolet Fluorescence,'' D 6920-03, entitled,
``Standard Test Method for Total Sulfur in Naphthas, Distillates,
Reformulated Gasolines, Diesels, Biodiesels, and Motor Fuels by
Oxidative Combustion and Electrochemical Detection,'' D 3120-03a,
entitled, ``Standard Test Method for Trace Quantities of Sulfur in Light
Petroleum Hydrocarbons by Oxidative Microcoulometry,'' D 7039-04,
entitled, ``Standard Test Method for Sulfur in Gasoline and Diesel Fuel
by Monochromatic Wavelength Dispersive X-ray Fluorescence
Spectrometry,'' D 6667-01, entitled, ``Standard Test Method for
Determination of Total Volatile Sulfur in Gaseous Hydrocarbons and
Liquefied Petroleum Gases by Ultraviolet Fluorescence,'' and D 4468-85
(Reapproved 2000), ``Standard Test Method for Total Sulfur in Gaseous
Fuels by Hydrogenolysis and Rateometric Colorimetry'' are incorporated
by reference in this section. These incorporations by reference were
approved by the Director of the Federal Register in accordance with 5
U.S.C. 552(a) and 1 CFR part 51. Copies may be obtained from the
American Society for Testing and Materials, 100 Barr Harbor Dr., West
Conshohocken, PA 19428-2959. Copies may be inspected at the Air Docket,
EPA/DC, EPA West, Room B102, 1301 Constitution Ave., NW., Washington,
DC, or at the National Archives and Records Administration (NARA). For
information on the availability of this material at NARA, call 202-741-
6030 or go to: http://www.archives.gov/[fxsp0]federal--register/
[fxsp0]code--of--[fxsp0]federal--regulations/[fxsp0]ibr--
locations.[fxsp0]html.
[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]