ASTM D7621-15a
(Test Method)Standard Test Method for Determination of Hydrogen Sulfide in Fuel Oils by Rapid Liquid Phase Extraction
Standard Test Method for Determination of Hydrogen Sulfide in Fuel Oils by Rapid Liquid Phase Extraction
SIGNIFICANCE AND USE
5.1 Excessive levels of hydrogen sulfide in the vapor phase above residual fuel oils in storage tanks can result in health hazards, violation of local occupational health and safety regulations, and public complaint. An additional concern is corrosion that can be caused by the presence of H2S during refining or other activities. Control measures to maintain safe levels of H2S require a precise method for the measurement of potentially hazardous levels of H2S in fuel oils. (Warning—Safety. Hydrogen sulfide (H2S) is a very dangerous, toxic, explosive and flammable, colorless and transparent gas which can be found in crude oil and can be formed during the manufacture of the fuel at the refinery and can be released during handling, storage, and distribution. At very low concentrations, the gas has the characteristic smell of rotten eggs. However, at higher concentrations, it causes a loss of smell, headaches, and dizziness, and at very high concentrations, it causes instantaneous death. It is strongly recommended that personnel involved in the testing for hydrogen sulfide are aware of the hazards of vapor-phase H2S and have in place appropriate processes and procedures to manage the risk of exposure.)
5.2 This test method was developed so refiners, fuel terminal operators, and independent testing laboratory personnel can rapidly and precisely measure the amount of H2S in residual fuel oils and distillate blend stocks, with a minimum of training, in a wide range of locations.
5.3 Test Method D5705 provides a simple and consistent field test method for the rapid determination of H2S in the residual fuel oils vapor phase. However it does not necessarily simulate the vapor phase H2S concentration of a fuel storage tank nor does it provide any indication of the liquid phase H2S concentration.
5.4 Test Method D6021 does measure the H2S concentration of H2S in the liquid phase, however it requires a laboratory and a skilled operator to perform the complex procedure an...
SCOPE
1.1 This test method covers procedures (A and B) for the determination of the hydrogen sulfide (H2S) content of fuel oils such as marine residual fuels and blend stocks, with viscosity up to 3000 mm2s-1 at 50 °C, and marine distillate fuels, as measured in the liquid phase.
Note 1: Specification fuels falling within the scope of this test method are: ASTM Specification D396, MIL-DTL-16884, and ISO 8217.
1.2 Procedure A has been shown to eliminate interferences such as thiols (mercaptans) and alkyl sulfides. Procedure B can give elevated results if such interferences are present (see Annex A2).
Note 2: A procedure for measuring the amount of hydrogen sulfide in crude oil can be found in Appendix X1. Full precision for Appendix X1 has not yet been determined.
1.3 Valid ranges for the precision are given in Table 2 and Table 3. Measurements can be made outside these ranges however precision has not been determined.
1.4 Samples containing FAME do not affect the measurement of hydrogen sulfide by this test method.
1.5 The values stated in SI units are to be regarded as standard. Non-SI units given in parentheses are for information only.
1.6 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.
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Designation:D7621 −15a
IP570
Standard Test Method for
Determination of Hydrogen Sulfide in Fuel Oils by Rapid
1,2
Liquid Phase Extraction
This standard is issued under the fixed designation D7621; 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* 2. Referenced Documents
3
2.1 ASTM Standards:
1.1 This test method covers procedures (A and B) for the
D396 Specification for Fuel Oils
determinationofthehydrogensulfide(H S)contentoffueloils
2
D4057 Practice for Manual Sampling of Petroleum and
such as marine residual fuels and blend stocks, with viscosity
2 -1
Petroleum Products
up to 3000 mm s at 50 °C, and marine distillate fuels, as
D5705 Test Method for Measurement of Hydrogen Sulfide
measured in the liquid phase.
in the Vapor Phase Above Residual Fuel Oils
NOTE 1—Specification fuels falling within the scope of this test method
D6021 Test Method for Measurement of Total Hydrogen
are: ASTM Specification D396, MIL-DTL-16884, and ISO 8217.
Sulfide in Residual Fuels by Multiple Headspace Extrac-
1.2 Procedure A has been shown to eliminate interferences
tion and Sulfur Specific Detection
such as thiols (mercaptans) and alkyl sulfides. Procedure B can
D6300 Practice for Determination of Precision and Bias
give elevated results if such interferences are present (see
Data for Use in Test Methods for Petroleum Products and
Annex A2).
Lubricants
NOTE 2—Aprocedure for measuring the amount of hydrogen sulfide in
4
2.2 ASTM Adjuncts:
crude oil can be found in Appendix X1. Full precision for Appendix X1
ADJ6300 D2PP Determination of Precision and Bias data
has not yet been determined.
for Use in Test Methods for Petroleum Products
1.3 Valid ranges for the precision are given in Table 2 and
5
2.3 ISO Standards:
Table 3. Measurements can be made outside these ranges
ISO 4259 Petroleum Products–Determination and Applica-
however precision has not been determined.
tion of Precision Data in Relation to Methods of Test
1.4 Samples containing FAME do not affect the measure-
ISO 8217 Fuels (Class F) Specification of Marine Fuels
ment of hydrogen sulfide by this test method.
6
2.4 Energy Institute Standards:
IP 399 Test Method for Determination of Hydrogen Sulfide
1.5 The values stated in SI units are to be regarded as
standard.Non-SIunitsgiveninparenthesesareforinformation in Fuel Oils
IP 570 Test Method for Determination of Hydrogen Sulfide
only.
in Fuel Oils–Rapid Liquid Phase Extraction Method
1.6 This standard does not purport to address all of the
7
2.5 U.S. Department of Defense Specifications:
safety concerns, if any, associated with its use. It is the
MIL-DTL-16884 Fuel, Naval Distillate
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
3
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
1
This test method is under the jurisdiction of ASTM Committee D02 on the ASTM website.
4
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of For referenced ASTM adjuncts contact ASTM Customer Service at
Subcommittee D02.14 on Stability and Cleanliness of Liquid Fuels. service@astm.org.
5
Current edition approved Oct. 1, 2015. Published December 2015. Originally Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
approved in 2010. Last previous edition approved in 2015 as D7621 – 15. 4th Floor, New York, NY 10036, http://www.ansi.org.
6
DOI:10.1520/D7621-15A. Available from Energy Institute, 61 New Cavendish St., London, WIG 7AR,
2
This test method has been developed through the cooperative effort between U.K., http://www.energyinst.org.uk.
7
ASTM and the Energy Institute, London. The IP and ASTM logos imply that the Available online at https://assist.dla.mil/quicksearch/ or http://assistdocs.com/
ASTM and IPstandards are technically equivalent, but their use does not imply that or from the Standardization Document Order Desk, 700 Robbins Avenue, Building
both standards are editorially identical. 4D, Philadelphia, PA 19111-5094.
*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 ----------------------
D7621−15a
3. Terminology residual fuel oils vapor phase. However it does not necessarily
simulate the vapor phase H S concen
...
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: D7621 − 15 D7621 − 15a
IP 570
Standard Test Method for
Determination of Hydrogen Sulfide in Fuel Oils by Rapid
1,2
Liquid Phase Extraction
This standard is issued under the fixed designation D7621; 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 procedures (A and B) for the determination of the hydrogen sulfide (H S) content of fuel oils such
2
2 -1
as marine residual fuels and blend stocks, with viscosity up to 3000 mm s at 50 °C, and marine distillate fuels, as measured in
the liquid phase.
NOTE 1—Specification fuels falling within the scope of this test method are: ASTM Specification D396, MIL-DTL-16884, and ISO 8217.
1.2 Procedure A has been shown to eliminate interferences such as thiols (mercaptans) and alkyl sulfides. Procedure B can give
elevated results if such interferences are present (see Annex A2).
NOTE 2—A procedure for measuring the amount of hydrogen sulfide in crude oil can be found in Appendix X1. Full precision for Appendix X1 has
not yet been determined.
1.3 Valid ranges for the precision are given in Table 2 and Table 3. Measurements can be made outside these ranges however
precision has not been determined.
1.4 Samples containing FAME do not affect the measurement of hydrogen sulfide by this test method.
1.5 The values stated in SI units are to be regarded as standard. Non-SI units given in parentheses are for information only.
1.6 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.
2. Referenced Documents
3
2.1 ASTM Standards:
D396 Specification for Fuel Oils
D4057 Practice for Manual Sampling of Petroleum and Petroleum Products
D5705 Test Method for Measurement of Hydrogen Sulfide in the Vapor Phase Above Residual Fuel Oils
D6021 Test Method for Measurement of Total Hydrogen Sulfide in Residual Fuels by Multiple Headspace Extraction and Sulfur
Specific Detection
D6300 Practice for Determination of Precision and Bias Data for Use in Test Methods for Petroleum Products and Lubricants
4
2.2 ASTM Adjuncts:
ADJ6300 D2PP Determination of Precision and Bias data for Use in Test Methods for Petroleum Products
5
2.3 ISO Standards:
ISO 4259 Petroleum Products–Determination and Application of Precision Data in Relation to Methods of Test
ISO 8217 Fuels (Class F) Specification of Marine Fuels
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
D02.14 on Stability and Cleanliness of Liquid Fuels.
Current edition approved April 15, 2015Oct. 1, 2015. Published May 2015December 2015. Originally approved in 2010. Last previous edition approved in 20142015 as
D7621 – 14.D7621 – 15. DOI:10.1520/D7621-15.DOI:10.1520/D7621-15A.
2
This test method has been developed through the cooperative effort between ASTM and the Energy Institute, London. The IP and ASTM logos imply that the ASTM
and IP standards are technically equivalent, but their use does not imply that both standards are editorially identical.
3
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.
4
For referenced ASTM adjuncts contact ASTM Customer Service at service@astm.org.
5
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
*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 ----------------------
D7621 − 15a
6
2.4 Energy Institute Standards:
IP 399 Test Method for Determination of Hydrogen Sulfide in Fuel Oils
IP 570 Test Method for Determination of Hydrogen Sulfide in Fuel Oils–Rapid Liquid Phase Extraction Method
7
2.5 U.S. Department of Defense Specifications:
MIL-DTL-16884 Fuel, Naval Distillate
3. Terminology
3.1 Definitions:
3.1.1 residual fuel oil,
...
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