ASTM D7548-15
(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 and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: D7548 − 15
StandardTest 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* D4814Specification for Automotive Spark-Ignition Engine
Fuel
1.1 This test method covers an accelerated laboratory and
D7467Specification for Diesel Fuel Oil, Biodiesel Blend
field procedure for the determination of corrosion of iron, in
(B6 to B20)
thepresenceofwater,onsamplessuchasgasolineandgasoline
G15TerminologyRelatingtoCorrosionandCorrosionTest-
blended with 10% ethanol, E10 (Specification D4814);
3
ing (Withdrawn 2010)
gasoline-blend components (except butane); diesel fuel and
2.2 Other Standards:
biodiesel B5, except Grade No. 4-D (Specification D975);
070 M20 of BS 970-1 or European Steel C22E number
biodiesel B6 to B20 (Specification D7467); diesel-blend com-
1.1151Carbon and Carbon Manganese Steels including
ponent such as light cycle-oil; No.1 fuel oil, No.2 fuel oil
Free Cutting Steels
(Specification D396); aviation turbine fuel (Specification
D1655).
3. Terminology
1.2 The values stated in SI units are to be regarded as the
3.1 Definitions:
standard.
3.1.1 corrosion, n—chemical or electrochemical reaction
1.2.1 Exception—Values in parentheses are for information
between a material, usually a metal, and its environment that
only.
producesadeteriorationofthematerialanditsproperties. G15
1.3 This standard does not purport to address all of the
3.1.2 rust, n—corrosion product consisting primarily of
safety concerns, if any, associated with its use. It is the
hydrated iron oxide.
responsibility of the user of this standard to establish appro-
3.1.2.1 Discussion—Rust is a term properly applied only to
priate safety and health practices and determine the applica-
ferrous alloys. G15
bility of regulatory limitations prior to use.
3.2 Acronyms:
3.2.1 TP—temperature probe.
2. Referenced Documents
2
2.1 ASTM Standards:
4. Summary of Test Method
A108Specification for Steel Bar, Carbon and Alloy, Cold-
4.1 Apolishedironcorrosiontest-rodisimmersedin50mL
Finished
of the sample being tested and heated to 37.8°C (100°F), at
D97Test Method for Pour Point of Petroleum Products
which point 5mLof reagent water,Type III or better, is added
D396Specification for Fuel Oils
to the sample. Sample temperature is maintained between
D665Test Method for Rust-Preventing Characteristics of
37°C to 39°C (98°F to 102°F), with the target being 37.8°C
Inhibited Mineral Oil in the Presence of Water
(100°F), for 1h. At the end of the heating period, test-rod is
D975Specification for Diesel Fuel Oils
removed, rinsed, and examined for the degree/category of
D1193Specification for Reagent Water
corrosion against the “ASTM Iron Corrosion Rating Chart-
D1655Specification for Aviation Turbine Fuels
–Test Method D7548.”
5. Significance and Use
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
5.1 In general, wherever the possibility exists of water
Subcommittee D02.14 on Stability and Cleanliness of Liquid Fuels.
getting mixed with products/material (covered under 1.1) the
Current edition approved Dec. 1, 2015. Published February 2016. Originally
results obtained by this test method will indicate the degree to
approved in 2009. Last previous edition approved in 2009 as D7548–09. DOI:
10.1520/D7548-15. which corrosion of iron components can be expected.
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.
*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 − 15
5,7
5.2 Testalsodeterminestheantirustpropertiesofproducts/ 6.5.1 Holder, Ethanol-resistant plastic or PTFE. Total
material (covered under 1.1) in preparation for the various length: 63.5mm (2.5in.), with a 2-step handle at top which is
stages through which the tested product may pass prior to or disc-type, ~22.2mm (0.875 in.) in diameter by 15.9mm
during its transport through a pipeline. (0.625in.) thick. Below this is a circular step or rim which is
~17.5mm (0.69in.) diameter by 6.4mm (0.25
...
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: D7548 − 09 D7548 − 15
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. 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 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. The values in parentheses are for information only.
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 and health practices and determine the applicability of regulatory
limitations prior to use.
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 Oils
D1193 Specification for Reagent Water
D1655 Specification for Aviation Turbine Fuels
D4814 Specification for Automotive Spark-Ignition Engine Fuel
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:
070 M20 of BS 970-1 or European Steel C22E number 1.1151 Carbon and Carbon Manganese Steels including Free Cutting
Steels
3. Terminology
3.1 Definitions:
3.1.1 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
3.1.2 rust, n—corrosion product consisting primarily of hydrated iron oxide.
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 June 15, 2009Dec. 1, 2015. Published September 2009February 2016. Originally approved in 2009. Last previous edition approved in 2009 as
D7548 – 09. DOI: 10.1520/D7548-09.10.1520/D7548-15.
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.
3.1.2.1 Discussion—
*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 − 15
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 50 mL of the sample being tested and heated to 37.8°C
(100°F),37.8 °C (100 °F), at which point 5 mL 5 mL of reagent water, Type III or better, is added to the sample. Sample
temperature is maintained between 3737 °C to 39°C (9839 °C (98 °F to 102°F),102 °F), with the target being 37.8°C (100°F), for
1 h. 37.8 °C (100 °F), for 1 h. At the end of the heating period, test-rod is removed, rinsed, and examined for the degree/category
of corrosion against the “ASTM Iron Corrosion Rating Chart–Test Method D7548.”
5. 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 c
...
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