ASTM D7548-22
(Test Method)Standard Test Method for Determination of Accelerated Iron Corrosion in Petroleum Products
Standard Test Method for Determination of Accelerated Iron Corrosion in Petroleum Products
SIGNIFICANCE AND USE
5.1 In general, wherever the possibility exists of water getting mixed with products/material (covered under 1.1) the results obtained by this test method will indicate the degree to which corrosion of iron components can be expected.
5.2 Test also determines the antirust properties of products/material (covered under 1.1) in preparation for the various stages through which the tested product may pass prior to or during its transport through a pipeline.
5.3 Test results are also meant to show whether or not the dosage levels and type of iron corrosion inhibitor added to a product/material (covered under 1.1) is sufficient for achieving the desired protection of affected assets such as storage tanks, process lines, and shipment systems.
SCOPE
1.1 This test method covers an accelerated laboratory and field procedure for the determination of corrosion of iron, in the presence of water, on samples such as gasoline and gasoline blended with 10 % ethanol, E10 (Specification D4814); gasoline-blend components (except butane); diesel fuel and biodiesel B5, except Grade No. 4-D (Specification D975); biodiesel B6 to B20 (Specification D7467); diesel-blend component such as light cycle-oil; No. 1 fuel oil, No. 2 fuel oil (Specification D396); aviation turbine fuel (Specification D1655).
1.2 The values stated in SI units are to be regarded as the standard.
1.2.1 Exception—Values in parentheses are for information only.
1.3 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.
1.4 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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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: D7548 − 22
Standard Test Method for
Determination of Accelerated Iron Corrosion in Petroleum
1
Products
This standard is issued under the fixed designation D7548; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* D396Specification for Fuel Oils
D665Test Method for Rust-Preventing Characteristics of
1.1 This test method covers an accelerated laboratory and
Inhibited Mineral Oil in the Presence of Water
field procedure for the determination of corrosion of iron, in
D975Specification for Diesel Fuel
thepresenceofwater,onsamplessuchasgasolineandgasoline
D1193Specification for Reagent Water
blended with 10 % ethanol, E10 (Specification D4814);
D1655Specification for Aviation Turbine Fuels
gasoline-blend components (except butane); diesel fuel and
D4175Terminology Relating to Petroleum Products, Liquid
biodiesel B5, except Grade No. 4-D (Specification D975);
Fuels, and Lubricants
biodiesel B6 to B20 (Specification D7467); diesel-blend com-
D4814Specification for Automotive Spark-Ignition Engine
ponent such as light cycle-oil; No. 1 fuel oil, No. 2 fuel oil
Fuel
(Specification D396); aviation turbine fuel (Specification
D7467Specification for Diesel Fuel Oil, Biodiesel Blend
D1655).
(B6 to B20)
1.2 The values stated in SI units are to be regarded as the
G15TerminologyRelatingtoCorrosionandCorrosionTest-
3
standard.
ing (Withdrawn 2010)
1.2.1 Exception—Values in parentheses are for information
2.2 Other Standards:
only. 4
British Standard BS970–1:070M20 or European Steel
1.3 This standard does not purport to address all of the
C22E Number 1.1151—Carbon and Carbon Manganese
safety concerns, if any, associated with its use. It is the
Steels including Free Cutting Steels
responsibility of the user of this standard to establish appro-
3. Terminology
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
3.1 Definitions:
1.4 This international standard was developed in accor-
3.1.1 For definitions of terms used in this test method, refer
dance with internationally recognized principles on standard-
to Terminology D4175.
ization established in the Decision on Principles for the
3.1.2 corrosion, n—chemical or electrochemical reaction
Development of International Standards, Guides and Recom-
between a material, usually a metal, and its environment that
mendations issued by the World Trade Organization Technical
producesadeteriorationofthematerialanditsproperties. G15
Barriers to Trade (TBT) Committee.
3.1.3 rust, n—corrosion product consisting primarily of
hydrated iron oxide.
2. Referenced Documents
3.1.3.1 Discussion—Rust is a term properly applied only to
2
2.1 ASTM Standards:
ferrous alloys. G15
A108Specification for Steel Bar, Carbon and Alloy, Cold-
3.2 Acronyms:
Finished
3.2.1 TP—temperature probe.
D97Test Method for Pour Point of Petroleum Products
4. Summary of Test Method
1
This test method is under the jurisdiction of ASTM Committee D02 on
4.1 Apolishedironcorrosiontest-rodisimmersedin50mL
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of
of the sample being tested and heated to 37.8°C (100°F), at
Subcommittee D02.14 on Stability, Cleanliness and Compatibility of Liquid Fuels.
Current edition approved May 1, 2022. Published May 2022. Originally
ɛ1
approvedin2009.Lastpreviouseditionapprovedin2022asD7548–16a(2022) .
3
DOI: 10.1520/D7548-22 The last approved version of this historical standard is referenced on
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or www.astm.org.
4
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Annual Book of IP Standard Methods for Analysis and Testing of Petroleum and
Standards volume information, refer to the standard’s Document Summary page on Related Products, Vol 2. Available from Energy Institute, 61 New Cavendish St.,
the ASTM website. London, W1G 7AR, U.K., http://www.energyinst.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, PA19428-2959. United States
1
---------------------- Page: 1 ----------------------
D7548 − 22
7,6
which point 5mLof reagent water,Type III or better, is added 6.4 Cover, Test Jar—Plastic, such as high density poly-
to the sample. Sample temperature is maintained between ethylene (HDPE), with three holes, meeting dimensions and
...
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.
´1
Designation: D7548 − 16a (Reapproved 2022) D7548 − 22
Standard Test Method for
Determination of Accelerated Iron Corrosion in Petroleum
1
Products
This standard is issued under the fixed designation D7548; 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
ε NOTE—Editorially corrected 13.1 in April 2022.
1. Scope Scope*
1.1 This test method covers an accelerated laboratory and field procedure for the determination of corrosion of iron, in the
presence of water, on samples such as gasoline and gasoline blended with 10 % ethanol, E10 (Specification D4814); gasoline-blend
components (except butane); diesel fuel and biodiesel B5, except Grade No. 4-D (Specification D975); biodiesel B6 to B20
(Specification D7467); diesel-blend component such as light cycle-oil; No.1 No. 1 fuel oil, No.2 No. 2 fuel oil (Specification
D396); aviation turbine fuel (Specification D1655).
1.2 The values stated in SI units are to be regarded as the standard.
1.2.1 Exception—Values in parentheses are for information only.
1.3 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.
1.4 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:
A108 Specification for Steel Bar, Carbon and Alloy, Cold-Finished
D97 Test Method for Pour Point of Petroleum Products
D396 Specification for Fuel Oils
D665 Test Method for Rust-Preventing Characteristics of Inhibited Mineral Oil in the Presence of Water
D975 Specification for Diesel Fuel
D1193 Specification for Reagent Water
D1655 Specification for Aviation Turbine Fuels
D4175 Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
D4814 Specification for Automotive Spark-Ignition Engine Fuel
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, Cleanliness and Compatibility of Liquid Fuels.
Current edition approved April 1, 2022May 1, 2022. Published April 2022May 2022. Originally approved in 2009. Last previous edition approved in 20162022 as
ɛ1
D7548 – 16a.D7548 – 16a (2022) . DOI: 10.1520/D7548-16AR22E01.10.1520/D7548-22
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.
*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 ----------------------
D7548 − 22
D7467 Specification for Diesel Fuel Oil, Biodiesel Blend (B6 to B20)
3
G15 Terminology Relating to Corrosion and Corrosion Testing (Withdrawn 2010)
2.2 Other Standards:
4
British Standard BS970–1:070M20 or European Steel C22E Number 1.1151—Carbon and Carbon Manganese Steels including
Free Cutting Steels
3. Terminology
3.1 Definitions:
3.1.1 For definitions of terms used in this test method, refer to Terminology D4175.
3.1.2 corrosion, n—chemical or electrochemical reaction between a material, usually a metal, and its environment that produces
a deterioration of the material and its properties. G15
3.1.3 rust, n—corrosion product consisting primarily of hydrated iron oxide.
3.1.3.1 Discussion—
Rust is a term properly applied only to ferrous alloys. G15
3.2 Acronyms:
3.2.1 TP—temperature probe.
4. Summary of Test Method
4.1 A polished iron corrosion test-rod is immersed in 50 mL of the sample being tested and heated to 37.8 °C (100 °F), at which
point 5 mL of reagent water, Type III or better, is added to the sample. Sample temperature is maintained between 37 °C to 39 °C
(98 °F to 102 °F), with the target being 37.8 °C (100 °F), f
...
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