ASTM D6258-04
(Test Method)Standard Test Method for Determination of Solvent Red 164 Dye Concentration in Diesel Fuels
Standard Test Method for Determination of Solvent Red 164 Dye Concentration in Diesel Fuels
SIGNIFICANCE AND USE
This test method was developed to provide for the enforcement of 26 CFR 48.4082-1(b), which mandates that all tax-exempt diesel fuels be dyed with an amount of Solvent Red 164 at a concentration that is spectrally equivalent to 3.9 lb/103 bbl (11.1 mg/L) of Solvent Red 26. It is employed to verify that the correct amount of Solvent Red 164 is being added to tax-exempt product at terminals or refineries prior to sale, and to detect the presence of Solvent Red 164 in taxed product intended for on-road use.
5.1.1 Solvent Red 26 is the azo dye shown in Fig. 1. It is the standard against which the concentration of Solvent Red 164 is measured because it is available in a certified pure form. Solvent Red 164 is identical in structure to Solvent Red 26 except that it has hydrocarbon (alkyl) chains incorporated to increase its solubility in diesel and burner fuels. The exact composition of Solvent Red 164 will vary from manufacturer to manufacturer and lot to lot depending upon the extent of alkylation that occurs during production; however, its visible spectrum is virtually identical to the spectrum of Solvent Red 26. Solvent Red 164 is employed in the field (instead of Solvent Red 26) to dye tax-exempt diesel and burner fuels because of its higher solubility and relatively low cost.
FIG. 1 Structure of Solvent Red 26
SCOPE
1.1 This test method covers the procedure for determining the concentration of dye Solvent Red 164 in commercially available diesel and burner fuels using visible spectroscopy. Note 1
This test method is suitable for all No. 1 and No. 2 grades in Specifications D 396 and D 975 and for grades DMA and DMB in Specification D 2069.
1.2 The concentration ranges specified for the calibration standards are established in response to the Internal Revenue Service dyeing requirements which state that tax-exempt diesel fuel satisfies the dyeing requirement only if it contains the dye Solvent Red 164 (and no other dye) at a concentration spectrally equivalent to 3.9 lb of the solid dye standard Solvent Red 26 per thousand bbl (11.1 mg/L) of diesel fuel.
1.3 The values stated in SI units are to be regarded as the standard.
This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
An American National Standard
Designation:D6258–04
Standard Test Method for
Determination of Solvent Red 164 Dye Concentration in
1
Diesel Fuels
This standard is issued under the fixed designation D 6258; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope* E 169 Practices for General Techniques of Ultraviolet-
Visible Quantitative Analysis
1.1 This test method covers the procedure for determining
E 275 Practice for Describing and Measuring Performance
the concentration of dye Solvent Red 164 in commercially
of Ultraviolet, Visible, and Near-Infrared Spectrophotom-
available diesel and burner fuels using visible spectroscopy.
eters
NOTE 1—This test method is suitable for all No. 1 and No. 2 grades in
E 288 Specification for Laboratory Glass Volumetric Flasks
Specifications D 396 and D 975 and for grades DMA and DMB in
E 691 Practice for Conducting an Interlaboratory Study to
Specification D 2069.
Determine the Precision of a Test Method
1.2 The concentration ranges specified for the calibration
E969 SpecificationforGlassVolumetric(Transfer)Pipettes
standards are established in response to the Internal Revenue
2.2 Other Document:
Servicedyeingrequirementswhichstatethattax-exemptdiesel
26 CFR 48.4082-1(b) Federal Excise Tax Regulation
fuel satisfies the dyeing requirement only if it contains the dye
3. Terminology
Solvent Red 164 (and no other dye) at a concentration
spectrally equivalent to 3.9 lb of the solid dye standard Solvent
3.1 Definitions:
Red 26 per thousand bbl (11.1 mg/L) of diesel fuel.
3.1.1 For definitions of terms used in this test method, refer
1.3 The values stated in SI units are to be regarded as the
to Terminology E 131.
standard.
4. Summary of Test Method
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4.1 The absorbance of each sample is recorded over a
responsibility of the user of this standard to establish appro-
specified wavelength range, and the scan is analyzed using
priate safety and health practices and determine the applica-
derivative analysis software to determine the dye concentra-
bility of regulatory limitations prior to use.
tion.
4.2 Derivative analysis methodology is employed to mini-
2. Referenced Documents
mize interferences caused by variations in the color and
2
2.1 ASTM Standards:
composition of the fuel samples regularly tested using this test
D 396 Specification for Fuel Oils
method.
D 975 Specification for Diesel Fuel Oils
4.2.1 Naturally occurring diesel test fuels range in color
3
D 2069 Specification for Marine Fuels
from water white to nearly black, and many of the samples
D 3699 Specification for Kerosine
tested using this test method have also had used oils and other
D 4057 Practice for Manual Sampling of Petroleum and
products blended with them. These variations in color and
Petroleum Products
composition have a significant effect upon absorbance charac-
E 131 Terminology Relating to Molecular Spectroscopy
teristics of the samples in the region of the visible spectrum
where azo dyes absorb. Standard operating procedures to
correct for these background variations would involve running
1
This test method is under the jurisdiction of ASTM Committee D02 on a neat (undyed) sample and subtracting out the background
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
absorbance. In most situations involved with the application of
D02.05 on Properties of Fuels, Petroleum Coke and Carbon Material.
this test method, however, neat material is not available, so no
Current edition approved Nov. 1, 2004. Published November 2004. Originally
e1
background corrections can be made.
approved in 1998. Last previous edition approved in 2003 as D 6258–98(2003) .
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.2.2 The second derivative of the absorbance of these dyes
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
in the visible region is a function of the fine structure of the
Standards volume information, refer to the standard’s Document Summary page on
dye’s absorbance peak (versus its height or area) and is
the ASTM website.
3
Withdrawn. relatively unaffected by changes in background absorbance.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D6258–04
reproducibility limits) participation in inter- or intra-laboratory studies
Fur
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.