ASTM D2784-06

Standard Test Method for Sulfur in Liquefied Petroleum Gases (Oxy-Hydrogen Burner or Lamp)

SIGNIFICANCE AND USE
It is important to have the sulfur content of liquefied petroleum gases at low enough concentration to meet government regulations. The presence of sulfur can result in corrosion of metal surfaces. Sulfur can be poisonous to catalysts in subsequent processing.
SCOPE
1.1 This test method covers the determination of total sulfur in liquefied petroleum gases containing more than 1 g/g. Specimens should not contain more than 100 g/g of halogens.
1.2 To attain the quantitative detectability that the test method is capable of, stringent techniques must be employed and all possible sources of sulfur contamination must be eliminated. In particular, cleaning agents, such as common household detergents which contain sulfates, should be avoided.
1.3 &si-value;
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

• Status: Historical
• Publication Date: 30-Nov-2006
• ICS: 75.160.30 - Gaseous fuels
• Technical Committee: D02 - Petroleum Products, Liquid Fuels, and Lubricants
• Drafting Committee: D02.03 - Elemental Analysis

Relations

• Replaces: ASTM D2784-98(2003)e1 - Standard Test Method for Sulfur in Liquefied Petroleum Gases (Oxy-Hydrogen Burner or Lamp)
• Effective Date: 01-Dec-2006
• Replaced By: ASTM D2784-11 - Standard Test Method for Sulfur in Liquefied Petroleum Gases (Oxy-Hydrogen Burner or Lamp) (Withdrawn 2016)
• Effective Date: 01-Jan-2011
• Referred By: ASTM D7578-20 - Standard Guide for Calibration Requirements for Elemental Analysis of Petroleum Products and Lubricants
• Effective Date: 01-Dec-2006
• Referred By: ASTM D7455-19 - Standard Practice for Sample Preparation of Petroleum and Lubricant Products for Elemental Analysis
• Effective Date: 01-Dec-2006
• Referred By: ASTM D1266-18 - Standard Test Method for Sulfur in Petroleum Products (Lamp Method)
• Effective Date: 01-Dec-2006

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D2784 – 06
Standard Test Method for
Sulfur in Liquefied Petroleum Gases (Oxy-Hydrogen Burner
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or Lamp)
This standard is issued under the fixed designation D2784; 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.
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1. Scope* 2.2 Energy Institute Standard:
IP 181 Sampling Petroleum Gases, Including Liquefied
1.1 This test method covers the determination of total sulfur
Petroleum Gases
in liquefied petroleum gases containing more than 1 µg/g.
Specimens should not contain more than 100 µg/g of halogens.
3. Summary of Test Method
1.2 To attain the quantitative detectability that the test
3.1 The sample is burned in an oxy-hydrogen burner, or in
method is capable of, stringent techniques must be employed
a lamp in a closed system in a carbon dioxide-oxygen
and all possible sources of sulfur contamination must be
atmosphere. The latter is not recommended for trace quantities
eliminated. In particular, cleaning agents, such as common
ofsulfurduetotheinordinatelylongcombustiontimesneeded.
household detergents which contain sulfates, should be
The oxides of sulfur are absorbed and oxidized to sulfuric acid
avoided.
in a hydrogen peroxide solution. The sulfate ions are then
1.3 The values stated in SI units are to be regarded as
determined by either of the following finishes:
standard. The values given in parentheses are for information
3.1.1 Barium Perchlorate Titration—The sulfate is titrated
only.
with barium perchlorate using a thorin-methylene blue mixed
1.4 This standard does not purport to address all of the
indicator.
safety concerns, if any, associated with its use. It is the
3.1.2 Turbidimetric—The sulfate is precipitated as barium
responsibility of the user of this standard to establish appro-
sulfate and the turbidity of a suspension of the precipitate is
priate safety and health practices and determine the applica-
measured with a photometer.
bility of regulatory limitations prior to use.
4. Significance and Use
2. Referenced Documents
2 4.1 It is important to have the sulfur content of liquefied
2.1 ASTM Standards:
petroleum gases at low enough concentration to meet govern-
D156 Test Method for Saybolt Color of Petroleum Products
mentregulations.Thepresenceofsulfurcanresultincorrosion
(Saybolt Chromometer Method)
of metal surfaces. Sulfur can be poisonous to catalysts in
D1193 Specification for Reagent Water
subsequent processing.
D1265 Practice for Sampling Liquefied Petroleum (LP)
Gases, Manual Method
5. Apparatus
D1266 Test Method for Sulfur in Petroleum Products
5.1 Oxy-Hydrogen Combustion Assembly—The two types
(Lamp Method)
listed below are recommended. Any combustion apparatus
D1657 Test Method for Density or Relative Density of
giving equivalent results, however, is satisfactory.
Light Hydrocarbons by Pressure Hydrometer
5.1.1 Wickbold-Type Combustion Apparatus, as shown in
E11 SpecificationforWovenWireTestSieveClothandTest
Fig. 1.
Sieves
,
4 5
5.1.2 Modified Beckman Burner-Type Apparatus, as
shown in Fig. 2. Each of the above types of apparatus shall
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This test method is under the jurisdiction of ASTM Committee D02 on consist of three parts: atomizer-burner, combustion chamber,
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
D02.03 on Elemental Analysis.
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Current edition approved Dec. 1, 2006. Published January 2007. Originally Available from Energy Institute, 61 New Cavendish St., London, WIG 7AR,
´1
approved in 1969. Last previous edition approved in 2003 as D2784–98(2003) . U.K., http://www.energyinst.org.uk.
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DOI: 10.1520/D2784-06. The sole source of supply of the apparatus known to the committee at this time
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or is Scientific Glassblowing Co., P.O. Box 18353, Houston, TX 77023.
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contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM If you are aware of alternative suppliers, please provide this information to
Standards volume information, refer to the standard’s Document Summary page on ASTM International Headquarters. Your comments will receive careful consider-
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the ASTM website. ation at a meeting of the responsible technical committee, which you may attend.
*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.
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D2784 – 06
5.4 Corrosion-Resistant Metal Cylinder, 75-mL—It shall be
testedatapressureof600psig(4.14MPagage)andshallshow
no leaks when filled with air or ni
...