ASTM D4084-23
(Test Method)Standard Test Method for Analysis of Hydrogen Sulfide in Gaseous Fuels (Lead Acetate Reaction Rate Method)
Standard Test Method for Analysis of Hydrogen Sulfide in Gaseous Fuels (Lead Acetate Reaction Rate Method)
SIGNIFICANCE AND USE
5.1 This test method is useful in determining the concentration of hydrogen sulfide in gaseous samples and in verifying compliance with operational needs and/or environmental limitations for H2S content. The automated performance operation of this method allows unattended measurement of H2S concentration. The user is referred to Practice D7166 for unattended on-line use of instrumentation based upon the lead acetate reaction rate method.
SCOPE
1.1 This test method covers the determination of hydrogen sulfide (H2S) in gaseous fuels. It is applicable to the measurement of H2S in natural gas, liquefied petroleum gas (LPG), substitute natural gas, landfill gas, sewage treatment off gasses, recycle gas, flare gasses, and mixtures of fuel gases. This method can also be used to measure the hydrogen sulfide concentration in carbon dioxide. Air does not interfere. The applicable range is 0.1 to 16 parts per million by volume (ppm/v) (approximately 0.1 to 22 mg/m3) and may be extended to 100 % H2S by manual or automatic volumetric dilution.
1.2 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.
1.3 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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Standards Content (Sample)
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.
Designation: D4084 − 23
Standard Test Method for
Analysis of Hydrogen Sulfide in Gaseous Fuels (Lead
1
Acetate Reaction Rate Method)
This standard is issued under the fixed designation D4084; 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 D4150 Terminology Relating to Gaseous Fuels
D7166 Practice for Total Sulfur Analyzer Based On-line/At-
1.1 This test method covers the determination of hydrogen
line for Sulfur Content of Gaseous Fuels
sulfide (H S) in gaseous fuels. It is applicable to the measure-
2
E2165 Practice for Establishing an Uncertainty Budget for
ment of H S in natural gas, liquefied petroleum gas (LPG),
2
the Chemical Analysis of Metals, Ores, and Related
substitute natural gas, landfill gas, sewage treatment off gasses,
3
Materials (Withdrawn 2007)
recycle gas, flare gasses, and mixtures of fuel gases. This
method can also be used to measure the hydrogen sulfide
3. Terminology
concentration in carbon dioxide. Air does not interfere. The
3.1 For definitions of general terms used in D03 Gaseous
applicable range is 0.1 to 16 parts per million by volume
3
(ppm/v) (approximately 0.1 to 22 mg/m ) and may be extended Fuels standards, refer to Terminology D4150.
to 100 % H S by manual or automatic volumetric dilution.
2
4. Summary of Test Method
1.2 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the 4.1 Measurement of H S is accomplished by ratiometrically
2
responsibility of the user of this standard to establish appro-
comparing a reading of an unknown sample with that of a
priate safety, health, and environmental practices and deter- known standard using a differential colorimetric detection.
mine the applicability of regulatory limitations prior to use. Pure H S is used as a primary standard and mixed volumetri-
2
1.3 This international standard was developed in accor- cally with a sulfur free matrix gas that is ideally similar in
dance with internationally recognized principles on standard- composition to the sample gas. A gaseous sample at constant
ization established in the Decision on Principles for the flow is humidified and passed over lead-acetate-impregnated
Development of International Standards, Guides and Recom- paper. H S reacts with lead acetate to form a brown stain on the
2
mendations issued by the World Trade Organization Technical
paper. The rate of reaction and resulting rate of color change is
Barriers to Trade (TBT) Committee. proportional to the concentration of H S in the sample. The
2
analyzer is comprised of an optical system, a photon detection
2. Referenced Documents
system, a signal differentiation system of first order, and a
2
signal output system. When there is no change in the color of
2.1 ASTM Standards:
the tape, and no resulting change in photodetector output, E,
D1193 Specification for Reagent Water
the first derivative, dE/dt, is zero. This results in an analyzer
D1914 Practice for Conversion Units and Factors Relating to
that automatically zeroes when there is no H S.
2
Sampling and Analysis of Atmospheres
D2420 Test Method for Hydrogen Sulfide in Liquefied
5. Significance and Use
Petroleum (LP) Gases (Lead Acetate Method)
D3609 Practice for Calibration Techniques Using Perme-
5.1 This test method is useful in determining the concentra-
ation Tubes
tion of hydrogen sulfide in gaseous samples and in verifying
compliance with operational needs and/or environmental limi-
tations for H S content. The automated performance operation
2
1
This test method is under the jurisdiction of ASTM Committee D03 on Gaseous
of this method allows unattended measurement of H S con-
2
Fuels and is the direct responsibility of Subcommittee D03.06.03 on Analysis by
centration. The user is referred to Practice D7166 for unat-
Spectroscopy.
tended on-line use of instrumentation based upon the lead
Current edition approved June 1, 2023. Published June 2023. Originally
approved in 1981. Last previous edition approved in 2017 as D4084 – 07 (2017). acetate reaction rate method.
DOI: 10.1520/D4084-23.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
Copyright © ASTM International, 100 Barr Har
...
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.
Designation: D4084 − 07 (Reapproved 2017) D4084 − 23
Standard Test Method for
Analysis of Hydrogen Sulfide in Gaseous Fuels (Lead
1
Acetate Reaction Rate Method)
This standard is issued under the fixed designation D4084; 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
1.1 This test method covers the determination of hydrogen sulfide (H S) in gaseous fuels. It is applicable to the measurement of
2
H S in natural gas, liquefied petroleum gas (LPG), substitute natural gas, landfill gas, sewage treatment off gasses, recycle gas, flare
2
gasses, and mixtures of fuel gases. This method can also be used to measure the hydrogen sulfide concentration in carbon dioxide.
3
Air does not interfere. The applicable range is 0.1 to 16 parts per million by volume (ppm/v) (approximately 0.1 to 22 mg/m ) and
may be extended to 100 % H S by manual or automatic volumetric dilution.
2
1.2 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.
1.3 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D1193 Specification for Reagent Water
D1914 Practice for Conversion Units and Factors Relating to Sampling and Analysis of Atmospheres
D2420 Test Method for Hydrogen Sulfide in Liquefied Petroleum (LP) Gases (Lead Acetate Method)
D3609 Practice for Calibration Techniques Using Permeation Tubes
D4150 Terminology Relating to Gaseous Fuels
D7166 Practice for Total Sulfur Analyzer Based On-line/At-line for Sulfur Content of Gaseous Fuels
E2165 Practice for Establishing an Uncertainty Budget for the Chemical Analysis of Metals, Ores, and Related Materials
3
(Withdrawn 2007)
3. Terminology
3.1 For definitions of general terms used in D03 Gaseous Fuels standards, refer to Terminology D4150.
1
This test method is under the jurisdiction of ASTM Committee D03 on Gaseous Fuels and is the direct responsibility of Subcommittee D03.05 on Determination of
Special Constituents of Gaseous Fuels.
Current edition approved Nov. 1, 2017June 1, 2023. Published December 2017June 2023. Originally approved in 1981. Last previous edition approved in 20122017 as
D4084 – 07 (2017).(2012). DOI: 10.1520/D4084-07R17.10.1520/D4084-23.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM 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
The last approved version of this historical standard is referenced on www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D4084 − 23
4. Summary of Test Method
4.1 Measurement of H S is accomplished by ratiometrically comparing a reading of an unknown sample with that of a known
2
standard using a differential colorimetric detection. Pure H S is used as a primary standard and mixed volumetrically with a sulfur
2
free matrix gas that is ideally similar in composition to the sample gas. A gaseous sample at constant flow is humidified and passed
over lead-acetate-impregnated paper. H S reacts with lead acetate to form a brown stain on the paper. The rate of reaction and
2
resulting rate of color change is proportional to the concentration of H S in the sample. The analyzer is comprised of an optical
2
system, a photon detection system, a signal differentiation system of first order, and a signal output system. When there is no
change in the color of the tape, and no resulting change in photodetector output, E, the first derivative, dE/dt, is zero. This results
in an analyzer that automatically zeroes when there is no H S.
2
5. Significance and Use
5.1 This test method is useful in determining the concentration of hydrogen sulfide in gaseous
...
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