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ASTM D7165-06

(Practice)

Standard Practice for Gas Chromatograph Based On-line/At-line Analysis for Sulfur Content of Gaseous Fuels

Standard Practice for Gas Chromatograph Based On-line/At-line Analysis for Sulfur Content of Gaseous Fuels

SCOPE
1.1 This practice is for the determination of volatile sulfur-containing compounds in high methane content gaseous fuels such as natural gas using on-line/at-line instrumentation, and continuous fuel monitors (CFMS). It has been successfully applied to other types of gaseous samples including air, digester, landfill, and refinery fuel gas. The detection range for sulfur compounds, reported as picograms sulfur, based upon the analysis of a 1 cc sample, is one hundred (100) to one million (1,000,000). This is equivalent to 0.1 to 1,000 mg/m3.
1.2 This practice does not purport to measure all sulfur species in a sample. Only volatile compounds that are transported to an instrument under the measurement conditions selected are measured.
1.3 The values stated in SI units are standard. The values stated in inch-pound units are for information only.
1.4 This practice 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 practice to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

Status
Historical
Publication Date
14-Jan-2006
ICS
71.040.50 - Physicochemical methods of analysis
Technical Committee
D03 - Gaseous Fuels
Drafting Committee
D03.12 - On-Line/At-Line Analysis of Gaseous Fuels
Current Stage
Ref Project

Relations

Replaced By
ASTM D7165-10 - Standard Practice for Gas Chromatograph Based On-line/At-line Analysis for Sulfur Content of Gaseous Fuels
Effective Date
01-Jan-2010
Referred By
ASTM D7800/D7800M-23 - Standard Test Method for Determination of Elemental Sulfur in Natural Gas
Effective Date
15-Jan-2006
Referred By
ASTM D8487-23 - Standard Specification for Natural Gas, Hydrogen Blends for Use as a Motor Vehicle Fuel
Effective Date
15-Jan-2006
Referred By
ASTM D8080-21 - Standard Specification for Compressed Natural Gas (CNG) and Liquefied Natural Gas (LNG) Used as a Motor Vehicle Fuel
Effective Date
15-Jan-2006
Referred By
ASTM D7493-22 - Standard Test Method for Online Measurement of Sulfur Compounds in Natural Gas and Gaseous Fuels by Gas Chromatograph and Electrochemical Detection
Effective Date
15-Jan-2006

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ASTM D7165-06 - Standard Practice for Gas Chromatograph Based On-line/At-line Analysis for Sulfur Content of Gaseous FuelsASTM D7165-06 - Standard Practice for Gas Chromatograph Based On-line/At-line Analysis for Sulfur Content of Gaseous Fuels
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ASTM D7165-06 - Standard Practice for Gas Chromatograph Based On-line/At-line Analysis for Sulfur Content of Gaseous Fuels
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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:D7165–06
Standard Practice for
Gas Chromatograph Based On-line/At-line Analysis for
1
Sulfur Content of Gaseous Fuels
This standard is issued under the fixed designation D7165; 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 D4084 Test Method for Analysis of Hydrogen Sulfide in
Gaseous Fuels (Lead Acetate Reaction Rate Method)
1.1 This practice is for the determination of volatile
D4468 Test Method for Total Sulfur in Gaseous Fuels by
sulfur-containing compounds in high methane content gaseous
Hydrogenolysis and Rateometric Colorimetry
fuels such as natural gas using on-line/at-line instrumentation,
D4626 Practice for Calculation of Gas Chromatographic
and continuous fuel monitors (CFMS). It has been successfully
Response Factors
applied to other types of gaseous samples including air,
D4810 Test Method for Hydrogen Sulfide in Natural Gas
digester, landfill, and refinery fuel gas. The detection range for
Using Length-of-Stain Detector Tubes
sulfur compounds, reported as picograms sulfur, based upon
D5504 Test Method for Determination of Sulfur Com-
the analysis ofa1cc sample, is one hundred (100) to one
pounds in Natural Gas and Gaseous Fuels by Gas Chro-
million (1,000,000). This is equivalent to 0.1 to 1,000 mg/m3.
matography and Chemiluminescence
1.2 This practice does not purport to measure all sulfur
D6228 Test Method for Determination of Sulfur Com-
species in a sample. Only volatile compounds that are trans-
pounds in Natural Gas and Gaseous Fuels by Gas Chro-
ported to an instrument under the measurement conditions
matography and Flame Photometric Detection
selected are measured.
E594 Practice for Testing Flame Ionization Detectors Used
1.3 The values stated in SI units are standard. The values
in Gas or Supercritical Fluid Chromatography
stated in inch-pound units are for information only.
1.4 This practice does not purport to address all of the
3. Terminology
safety concerns, if any, associated with its use. It is the
3.1 Definitions:
responsibility of the user of this practice to establish appro-
3.1.1 direct sampling—Sampling where there is no direct
priate safety and health practices and determine the applica-
connection between the medium to be sampled and the
bility of regulatory limitations prior to use.
analytical unit.
2. Referenced Documents 3.1.2 in-line instrument—Instrument whose active element
2 is installed in the pipeline and measures at pipeline conditions.
2.1 ASTM Standards:
3.1.3 on-line instrument—Automated instrument that
D1072 Test Method for Total Sulfur in Fuel Gases by
samples gas directly from the pipeline, but is installed exter-
Combustion and Barium Chloride Titration
nally.
D1945 Test Method for Analysis of Natural Gas by Gas
3.1.4 at-line instrument—instrument requiring operator in-
Chromatography
teraction to sample gas directly from the pipeline.
D3606 Test Method for Determination of Benzene and
3.1.5 continuous fuel monitor (CFM)—Instrument that
Toluene in Finished Motor and Aviation Gasoline by Gas
samples gas directly from the pipeline on a continuous or
Chromatography
semi-continuous basis.
3.1.6 total reduced sulfur (TRS)—Summation of sulfur
species where the sulfur oxidation number is –2, excluding
1
This practice is under the jurisdiction of ASTM Committee D03 on Gaseous
sulfurdioxide,sulfones,andotherinorganicsulfurcompounds.
Fuels and is the direct responsibility of Subcommittee D03.12 on On-Line/At-Line
This includes but is not limited to mercaptans, sulfides, and
Analysis of Gaseous Fuels.
disulfides.
Current edition approved Jan. 15, 2006. Published January 2006. DOI: 10.1520/
D7165-06.
3.1.7 near-real time monitoring systems—Monitoring sys-
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
temwheremeasurementoccurssoonaftersampleflowthrough
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
the system or soon after sample extraction. The definition of a
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. near real time monitoring system can be application specific.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D7165–06
4. Summary of Practice The sampling inlet system is heated as necessary so as to
prevent condensation.All wetted sampling system components
4.1 Arepresentative sample of the gaseous fuel is extracted
must be constructed of inert or passivated materials. Sample
from a process pipe or pipeline and
...

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5.1 On-line, at-line, in-line, CFMS, and other near-real time monitoring systems that measure fuel gas characteristics, such as the sulfur content, are prevalent in the natural gas and fuel gas industries. The installation and operation of particular systems vary on the specific objectives, contractual obligations, process type, regulatory requirements, and internal performance requirements needed by the user. This standard is intended to provide guidelines for standardized start-up procedures, operating procedures, and quality assurance practices for on-line, at-line, in-line, CFMS, and other near-real time gas chromatographic based sulfur monitoring systems used to determine fuel gas sulfur content. For measurement of gaseous fuel properties using laboratory based methods, the user is referred to Test Methods D1072, D1945, D4084, D4468, D4810, D7833, and Practices D4626, E594.
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1.1 This practice is for the determination of gas phase sulfur-containing compounds in high methane content gaseous fuels such as natural gas using on-line/at-line instrumentation, and continuous fuel monitors (CFMS). It has been successfully applied to other types of gaseous samples including air, digester, landfill, and refinery fuel gas. The detection range for sulfur compounds, reported as picograms sulfur, based upon the analysis of a 1 mL sample, is one hundred (100) to one million (1 000 000). This is equivalent to 0.1 to 1000 mg/m3.  
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5.1 Gaseous fuels, such as natural gas, petroleum gases and bio-gases, contain varying amounts and types of sulfur compounds. They are generally odorous, corrosive to equipment, and can inhibit or destroy catalysts employed in gas processing. Their accurate measurement is essential to gas processing, operation and utilization, and may be of regulatory interest.  
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5.1 ASTM standard gas chromatographic methods for the analysis of petroleum products require calibration of the gas chromatographic system by preparation and analysis of specified reference mixtures. Frequently, minimal information is given in these methods on the practice of calculating calibration or response factors. Test Methods D2268, D2427, D2804, D2998, D3329, D3362, D3465, D3545, and D3695 are examples. The present practice helps to fill this void by providing a detailed reference procedure for calculating response factors, as exemplified by analysis of a standard blend of C6 to C11 n-paraffins using n-C12 as the diluent.  
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5.1 This test method is intended for the determination of chromium, bromine, cadmium, mercury, and lead, in homogeneous polymeric materials. The test method may be used to ascertain the conformance of the product under test to manufacturing specifications. Typical time for a measurement is 5 to 10 min per specimen, depending on the specimen matrix and the capabilities of the EDXRF spectrometer.
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1.1 This test method describes an energy dispersive X-ray fluorescence (EDXRF) spectrometric procedure for identification and quantification of chromium, bromine, cadmium, mercury, and lead in polymeric materials.  
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Standard Test Method for Purity of 1,3-Propanediol (Gas Chromatographic Method)

SIGNIFICANCE AND USE
4.1 Knowledge of an approved method is required to establish whether the product meets the requirements of its specifications. The use of glycols in the reference sample is not intended to suggest the presence of glycol (EG, PG and DPG) impurities, but to demonstrate and quantify the separation of commonly used Engine Coolant glycols from PDO.
SCOPE
1.1 This test method describes the gas chromatographic determination of purity for 1,3-propanediol (PDO). This test method was originally developed to determine the purity of 1,3-propanediol used for the application as the freeze point depressant base fluid in formulated PDO engine coolants. Use of the method for purity of PDO for other applications may be viable.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.2.1 Exception—Inch-pound units (psi) are used in Table 1, Pressure Program, Options A and B.  
1.3 Review the current Material Safety Data Sheets (MSDS) for detailed information concerning toxicity, first aid procedures, and safety precautions.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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