ASTM D7041-16

Standard Test Method for Determination of Total Sulfur in Liquid Hydrocarbons and Hydrocarbon-Oxygenate Blends by Gas Chromatography with Flame Photometric Detection

SIGNIFICANCE AND USE
4.1 This test method can be used to determine total sulfur levels in process feeds and finished products that fall within the scope of this test method.  
4.2 Low levels of sulfur in process feed stocks can poison expensive catalysts used in petroleum refining processes. This test method can be used to monitor sulfur levels in these feedstocks.
SCOPE
1.1 This test method covers the determination of total sulfur in liquid hydrocarbons with a final boiling point less than 450 °C by gas chromatography using a flame photometric detector.  
1.2 This test method is applicable for total sulfur levels from 0.5 mg S/kg to 100 mg S/kg.
Note 1: The pooled limit of quantification (PLOQ) derived from the 2002 interlaboratory cooperative test program was determined to be 1 mgS/kg.
Note 2: Samples can also be tested at other total sulfur levels, but the precision statements may not apply.  
1.3 The values stated in SI units are to be regarded as standard.  
1.4 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. For specific hazard statements see Section 7.

General Information

• Status: Historical
• Publication Date: 31-Mar-2016
• ICS: 75.160.20 - Liquid fuels
• Technical Committee: D02 - Petroleum Products, Liquid Fuels, and Lubricants
• Drafting Committee: D02.03 - Elemental Analysis

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
Designation: D7041 − 16
Standard Test Method for
Determination of Total Sulfur in Liquid Hydrocarbons and
Hydrocarbon-Oxygenate Blends by Gas Chromatography
1
with Flame Photometric Detection
This standard is issued under the fixed designation D7041; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope* E840 PracticeforUsingFlamePhotometricDetectorsinGas
Chromatography
1.1 This test method covers the determination of total sulfur
in liquid hydrocarbons with a final boiling point less than
3. Summary of Test Method
450 °C by gas chromatography using a flame photometric
3.1 The sample is analyzed by gas chromatography with a
detector.
flame photometric detector. A fixed amount of sample is
1.2 Thistestmethodisapplicablefortotalsulfurlevelsfrom
injected into the gas chromatograph where it is vaporized. The
0.5 mg S/kg to 100 mg S/kg.
air carrier stream carries the vaporized sample into a high
NOTE 1—The pooled limit of quantification (PLOQ) derived from the
temperature zone (>900 °C) where the compounds present in
2002 interlaboratory cooperative test program was determined to be
the sample are oxidized. Sulfur compounds are converted to
1 mgS⁄kg.
sulfur dioxide (SO ). The carrier stream carries the oxidation
NOTE 2—Samples can also be tested at other total sulfur levels, but the
2
precision statements may not apply.
components onto a chromatographic column where they are
separated and the SO is quantified by the flame photometric
1.3 The values stated in SI units are to be regarded as
2
detector.Calibrationofthedetectorisachievedbytheuseofan
standard.
appropriate external standard.
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4. Significance and Use
responsibility of the user of this standard to establish appro-
4.1 This test method can be used to determine total sulfur
priate safety and health practices and determine the applica-
levelsinprocessfeedsandfinishedproductsthatfallwithinthe
bility of regulatory limitations prior to use. For specific hazard
scope of this test method.
statements see Section 7.
4.2 Low levels of sulfur in process feed stocks can poison
2. Referenced Documents
expensive catalysts used in petroleum refining processes. This
2
2.1 ASTM Standards:
test method can be used to monitor sulfur levels in these
D1298 Test Method for Density, Relative Density, or API
feedstocks.
Gravity of Crude Petroleum and Liquid Petroleum Prod-
5. Apparatus
ucts by Hydrometer Method
D4052 Test Method for Density, Relative Density, and API
5.1 Gas Chromatograph, equipped with automatically con-
Gravity of Liquids by Digital Density Meter
trolled valves, capable of automatic calibration with an exter-
D4057 Practice for Manual Sampling of Petroleum and
nal standard and having a flame photometric detector with an
Petroleum Products
overall sensitivity to detect at least 0.5 mg/kg of SO . It must
2
D4177 Practice for Automatic Sampling of Petroleum and
be able to automatically control all valve switching times.
Petroleum Products
Although originally developed with online analytical measure-
mentequipmentinanofflinemodeofoperation,suitableonline
1
This test method is under the jurisdiction of ASTM Committee D02 on
or laboratory gas chromatographs may apply this test method
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of
as described. Typical instrument parameters are listed in Table
Subcommittee D02.03 on Elemental Analysis.
1.
Current edition approved April 1, 2016. Published April 2016. Originally
ɛ1
5.1.1 Carrier and Detector Gas Control—The chromato-
approved in 2004. Last previous edition approved in 2010 as D7041 – 04 (2010) .
DOI: 10.1520/D7041-16.
graph must be equipped with flow controllers or pressure
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
controllers capable of maintaining a constant supply of carrier
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
gas and detector supply gases. Electronic pressure or flow
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. control is highly recommended.
*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

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D7041 − 16
3
TABLE 1 Typical Instrument Parameters
where such specifications are available. Other grades may be
Carrier gas Zero air used, provided it is first ascertained
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
´1
Designation: D7041 − 04 (Reapproved 2010) D7041 − 16
Standard Test Method for
Determination of Total Sulfur in Light Hydrocarbons, Motor
Fuels, and Oils by Online Liquid Hydrocarbons and
Hydrocarbon-Oxygenate Blends by Gas Chromatography
1
with Flame Photometric Detection
This standard is issued under the fixed designation D7041; 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 (´) indicates an editorial change since the last revision or reapproval.
1
ε NOTE—Table 3 was editorially reinstated in February 2013.
1. Scope Scope*
1.1 This test method covers the determination of total sulfur in liquid hydrocarbons with a final boiling point less than
450°C450 °C by gas chromatography using a flame photometric detector.
1.2 This test method is applicable for total sulfur levels from 0.5 to 100 mg 0.5 mg S/kg to 100 mg S/kg.
NOTE 1—The pooled limit of quantification (PLOQ) derived from the 2002 interlaboratory cooperative test program was determined to be 1
1 mgS mgS/kg.⁄kg.
NOTE 2—Samples can also be tested at other total sulfur levels, but the precision statements may not apply.
1.3 The values stated in SI units are to be regarded as standard.
1.4 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. For specific hazard statements see Section 7.
2. Referenced Documents
2
2.1 ASTM Standards:
D1298 Test Method for Density, Relative Density, or API Gravity of Crude Petroleum and Liquid Petroleum Products by
Hydrometer Method
D4052 Test Method for Density, Relative Density, and API Gravity of Liquids by Digital Density Meter
D4057 Practice for Manual Sampling of Petroleum and Petroleum Products
D4177 Practice for Automatic Sampling of Petroleum and Petroleum Products
E840 Practice for Using Flame Photometric Detectors in Gas Chromatography
3. Summary of Test Method
3.1 The sample is analyzed by gas chromatography with a flame photometric detector. A fixed amount of sample is injected into
the gas chromatograph where it is vaporized. The air carrier stream carries the vaporized sample into a high temperature zone
(>900°C)(>900 °C) where the compounds present in the sample are oxidized. Sulfur compounds are converted to sulfur dioxide
(SO ). The carrier stream carries the oxidation components onto a chromatographic column where they are separated and the SO
2 2
is quantified by the flame photometric detector. Calibration of the detector is achieved by the use of an appropriate external
standard.
4. Significance and Use
4.1 This test method can be used to determine total sulfur levels in process feeds and finished products that fall within the scope
of this test method.
1
This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of Subcommittee
D02.03 on Elemental Analysis.
Current edition approved May 1, 2010April 1, 2016. Published May 2010April 2016. Originally approved in 2004. Last previous edition approved in 20042010 as
ɛ1
D7041 – 04 (2010) D7041–04. DOI: 10.1520/D7041-04R10E01.10.1520/D7041-16.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*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 ----------------------
D7041 − 16
4.2 Low levels of sulfur in process feed stocks can poison expensive catalysts used in petroleum refining processes. This test
method can be used to monitor sulfur levels in these feedstocks.
5. Apparatus
5.1 Gas Chromatograph, equipped with automatically controlled valves, capable of automatic calibration with an external
standard and having a flame photometric detector with an overall sensitivity to detect at least 0.5 mg/kg of SO . It must be able
2
to automatically control all valve switching times. Although originally developed with online analytical measurement equipment
in an offline mode of operation, suitab
...