ASTM D7183-12
(Test Method)Standard Test Method for Determination of Total Sulfur in Aromatic Hydrocarbons and Related Chemicals by Ultraviolet Fluorescence
Standard Test Method for Determination of Total Sulfur in Aromatic Hydrocarbons and Related Chemicals by Ultraviolet Fluorescence
SIGNIFICANCE AND USE
Some process catalysts used in petroleum and chemical refining can be poisoned when trace amounts of sulfur-bearing materials are contained in the feedstocks. This test method can be used to determine sulfur in process feeds, sulfur in finished products, and can also be used for purposes of regulatory control.
SCOPE
1.1 This test method covers the determination of sulfur in aromatic hydrocarbons, their derivatives, and related chemicals.
1.2 This test method is applicable to samples with sulfur concentrations from 0.5 to 100 mg/kg.
1.3 The following applies for the purposes of determining the conformance of the test results using this test method to applicable specifications, results shall be rounded off in accordance with the rounding-off method of Practice E29.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5 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 9.
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Designation: D7183 − 12
StandardTest Method for
Determination of Total Sulfur in Aromatic Hydrocarbons and
1
Related Chemicals by Ultraviolet Fluorescence
This standard is issued under the fixed designation D7183; 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* E691 Practice for Conducting an Interlaboratory Study to
Determine the Precision of a Test Method
1.1 This test method covers the determination of sulfur in
2.2 Other Documents
aromatic hydrocarbons, their derivatives, and related chemi-
OSHA Regulations, 29 CFR paragraphs 1910.1000 and
cals.
3
1910.1200
1.2 This test method is applicable to samples with sulfur
3. Terminology
concentrations from 0.5 to 100 mg/kg.
3.1 oxidative pyrolysis, n—a process in which a sample is
1.3 The following applies for the purposes of determining
combusted in an oxygen-rich atmosphere at high temperature
the conformance of the test results using this test method to
to break down the components of the sample into elemental
applicable specifications, results shall be rounded off in accor-
oxides.
dance with the rounding-off method of Practice E29.
3.2 ultraviolet fluorescence, n—radiationintheregionofthe
1.4 The values stated in SI units are to be regarded as
electromagnetic spectrum including wavelength from 100 to
standard. No other units of measurement are included in this
3900A that excites SO to (SO *).
2 2
standard.
4. Summary of Test Method
1.5 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4.1 A specimen is either directly injected or placed in a
responsibility of the user of this standard to establish appro-
sample boat. The boat is then inserted into a high temperature
priate safety and health practices and determine the applica-
combustion tube where the sulfur is oxidized to sulfur dioxide
bility of regulatory limitations prior to use. For specific hazard
(SO ) in an oxygen-rich atmosphere. Water produced during
2
statements, see Section 9.
the sample combustion is removed and the sample combustion
gases are next exposed to ultraviolet (UV) light. The SO
2
2. Referenced Documents
absorbs the energy from the UV light and is converted to
2
excited sulfur dioxide (SO *). As it returns to a stable state,
2.1 ASTM Standards:
2
light is emitted and detected by a photomultiplier tube and the
D1555 Test Method for Calculation of Volume and Weight
resulting signal is a measure of the sulfur contained in the
of Industrial Aromatic Hydrocarbons and Cyclohexane
specimen.
D3437 Practice for Sampling and Handling Liquid Cyclic
Products
5. Significance and Use
D6809 Guide for Quality Control and Quality Assurance
5.1 Some process catalysts used in petroleum and chemical
Procedures for Aromatic Hydrocarbons and Related Ma-
refining can be poisoned when trace amounts of sulfur-bearing
terials
materials are contained in the feedstocks. This test method can
E29 Practice for Using Significant Digits in Test Data to
be used to determine sulfur in process feeds, sulfur in finished
Determine Conformance with Specifications
products, and can also be used for purposes of regulatory
control.
1
This test method is under the jurisdiction of ASTM Committee D16 on
6. Interferences
Aromatic Hydrocarbons and Related Chemicals and is the direct responsibility of
6.1 Halogens present in the specimen in concentrations
Subcommittee D16.04 on Instrumental Analysis.
Current edition approved Jan. 1, 2012. Published January 2012. Originally
greater than 10 % and nitrogen concentrations of 1500 mg/kg
´1
approved in 2007. Last previous edition approved in 2007 as D7183 - 07 . DOI:
or greater can interfere.
10.1520/D7183-12.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM AvailablefromU.S.GovernmentPrintingOfficeSuperintendentofDocuments,
Standards volume information, refer to the standard’s Document Summary page on 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
the ASTM website. www.access.gpo.gov.
*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 ----------------------
D7183 − 12
NOTE 1—A quick screening can be conducted by injecting the solvent
6.2 Moisture produced during the combustion step can
and sample once or twice and comparing relative area counts.
interfere if not removed prior to the gas entering the detector
NOTE2—Allsolven
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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:D7183–07 Designation:D7183–12
Standard Test Method for
Determination of Total Sulfur in Aromatic Hydrocarbons and
1
Related Chemicals by Ultraviolet Fluorescence
This standard is issued under the fixed designation D7183; 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
´ NOTE—Research report was added editorially in September 2007.
1. Scope*
1.1 This test method covers the determination of sulfur in aromatic hydrocarbons, their derivatives, and related chemicals.
1.2 This test method is applicable to samples with sulfur concentrations from 0.5 to 100 mg/kg.
1.3 Thefollowingappliesforthepurposesofdeterminingtheconformanceofthetestresultsusingthistestmethodtoapplicable
specifications, results shall be rounded off in accordance with the rounding-off method of Practice E29.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5 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 9.
2. Referenced Documents
2
2.1 ASTM Standards:
D1555 Test Method for Calculation of Volume and Weight of Industrial Aromatic Hydrocarbons and Cyclohexane
D3437 Practice for Sampling and Handling Liquid Cyclic Products
D6809 Guide for Quality Control and Quality Assurance Procedures for Aromatic Hydrocarbons and Related Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
2.2 Other Documents
3
OSHA Regulations, 29 CFR paragraphs 1910.1000 and 1910.1200
3. Terminology
3.1 oxidative pyrolysis, n—aprocessinwhichasampleiscombustedinanoxygen-richatmosphereathightemperaturetobreak
down the components of the sample into elemental oxides.
3.2 ultraviolet fluorescence, n—radiation in the region of the electromagnetic spectrum including wavelength from 100 to
3900A that excites SO to (SO *).
2 2
4. Summary of Test Method
4.1 A specimen is either directly injected or placed in a sample boat. The boat is then inserted into a high temperature
combustion tube where the sulfur is oxidized to sulfur dioxide (SO ) in an oxygen-rich atmosphere. Water produced during the
2
sample combustion is removed and the sample combustion gases are next exposed to ultraviolet (UV) light. The SO absorbs the
2
energy from the UV light and is converted to excited sulfur dioxide (SO *). As it returns to a stable state, light is emitted and
2
detected by a photomultiplier tube and the resulting signal is a measure of the sulfur contained in the specimen.
5. Significance and Use
5.1 Some process catalysts used in petroleum and chemical refining can be poisoned when trace amounts of sulfur-bearing
1
This test method is under the jurisdiction ofASTM Committee D16 onAromatic Hydrocarbons and Related Chemicals and is the direct responsibility of Subcommittee
D16.04 on Instrumental Analysis.
Current edition approved Jan. 15, 2007. Published April 2007. DOI: 10.1520/D7183-07E01.
´1
Current edition approved Jan. 1, 2012. Published January 2012. Originally approved in 2007. Last previous edition approved in 2007 as D7183 - 07 . DOI:
10.1520/D7183-12.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from U.S. Government Printing Office Superintendent of Documents, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
www.access.gpo.gov.
*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 ----------------------
D7183–12
materials are contained in the feedstocks. This test method can be used to determine sulfur in process feeds, sulfur in finished
products, and can also be used for purposes of regulatory control.
6.
...
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