ASTM D3241-24
(Test Method)Standard Test Method for Thermal Oxidation Stability of Aviation Turbine Fuels
Standard Test Method for Thermal Oxidation Stability of Aviation Turbine Fuels
SIGNIFICANCE AND USE
5.1 The test results are indicative of fuel performance during gas turbine operation and can be used to assess the level of deposits that form when liquid fuel contacts a heated surface that is at a specified temperature.
SCOPE
1.1 This test method covers the procedure for rating the tendencies of gas turbine fuels to deposit decomposition products within the fuel system.
1.2 The differential pressure values in mm Hg are defined only in terms of this test method.
1.3 The deposition values stated in SI units shall be regarded as the referee value.
1.4 The pressure values stated in SI units are to be regarded as standard. The psi comparison is included for operational safety with certain older instruments that cannot report pressure in SI units.
1.5 No other units of measurement are included in this standard.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific warning statements, see 6.1.1, 7.1, 7.3, 12.1.1, and Annex A6.
1.7 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: D3241 − 24
Designation 323/22
Standard Test Method for
1,2
Thermal Oxidation Stability of Aviation Turbine Fuels
This standard is issued under the fixed designation D3241; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* 2. Referenced Documents
3
2.1 ASTM Standards:
1.1 This test method covers the procedure for rating the
tendencies of gas turbine fuels to deposit decomposition D1655 Specification for Aviation Turbine Fuels
D4057 Practice for Manual Sampling of Petroleum and
products within the fuel system.
Petroleum Products
1.2 The differential pressure values in mm Hg are defined
D4175 Terminology Relating to Petroleum Products, Liquid
only in terms of this test method.
Fuels, and Lubricants
1.3 The deposition values stated in SI units shall be re-
D4306 Practice for Aviation Fuel Sample Containers for
garded as the referee value.
Tests Affected by Trace Contamination
E177 Practice for Use of the Terms Precision and Bias in
1.4 The pressure values stated in SI units are to be regarded
ASTM Test Methods
as standard. The psi comparison is included for operational
E691 Practice for Conducting an Interlaboratory Study to
safety with certain older instruments that cannot report pres-
Determine the Precision of a Test Method
sure in SI units.
4
2.2 ISO Standards:
1.5 No other units of measurement are included in this
ISO 3274 Geometrical Product Specifications (GPS)—
standard.
Surface texture: Profile method—Nominal characteristics
1.6 This standard does not purport to address all of the
of contact (stylus) instruments
safety concerns, if any, associated with its use. It is the
ISO 4288 Geometrical Product Specifications (GPS)—
responsibility of the user of this standard to establish appro-
Surface texture: Profile method—Rules and procedures
priate safety, health, and environmental practices and deter-
for the assessment of surface texture
5
mine the applicability of regulatory limitations prior to use.
2.3 ASTM Adjuncts:
For specific warning statements, see 6.1.1, 7.1, 7.3, 12.1.1, and
Color Standard for Heater Tube Deposit Rating
Annex A6.
3. Terminology
1.7 This international standard was developed in accor-
dance with internationally recognized principles on standard-
3.1 Definitions:
ization established in the Decision on Principles for the
3.1.1 For definitions of terms used in this test method, refer
Development of International Standards, Guides and Recom-
to Terminology D4175.
mendations issued by the World Trade Organization Technical
3.2 Definitions of Terms Specific to This Standard:
Barriers to Trade (TBT) Committee.
3.2.1 deposits, n—oxidative products laid down on the test
area of the heater tube or caught in the test filter, or both.
3.2.1.1 Discussion—Fuel deposits will tend to predominate
at the hottest portion of the heater tube, which is between the
1
This test method is under the jurisdiction of ASTM International Committee
D02 on Petroleum Products, Liquid Fuels, and Lubricants and is the direct 30 mm and 50 mm position.
responsibility of Subcommittee D02.J0.03 on Combustion and Thermal Properties.
The technically equivalent standard as referenced is under the jurisdiction of the
3
Energy Institute Subcommittee SC-B-8. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved March 1, 2024. Published March 2024. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
ɛ1
approved in 1973. Last previous edition approved in 2023 as D3241 – 23a . DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D3241-24. the ASTM website.
2 4
This test method has been developed through the cooperative effort between Available from International Organization for Standardization (ISO), 1, ch. de
ASTM and the Energy Institute, London. ASTM and IP standards were approved by la Voie-Creuse, CP 56, CH-1211 Geneva 20, Switzerland, http://www.iso.org.
5
ASTM and EI technical committees as being technically equivalent but that does not Available from ASTM International Headquarters. Order Adjunct No.
imply both standards are identical. ADJD3241. Original adjunct produced in 1986.
*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. Unit
...
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: D3241 − 23a D3241 − 24
Designation 323/21323/22
Standard Test Method for
1,2
Thermal Oxidation Stability of Aviation Turbine Fuels
This standard is issued under the fixed designation D3241; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1
ε NOTE—Editorially updated A4.11 in January 2024.
1. Scope*
1.1 This test method covers the procedure for rating the tendencies of gas turbine fuels to deposit decomposition products within
the fuel system.
1.2 The differential pressure values in mm Hg are defined only in terms of this test method.
1.3 The deposition values stated in SI units shall be regarded as the referee value.
1.4 The pressure values stated in SI units are to be regarded as standard. The psi comparison is included for operational safety
with certain older instruments that cannot report pressure in SI units.
1.5 No other units of measurement are included in this standard.
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, health, and environmental practices and determine the applicability of
regulatory limitations prior to use. For specific warning statements, see 6.1.1, 7.1, 7.3, 12.1.1, and Annex A6.
1.7 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
3
2.1 ASTM Standards:
D1655 Specification for Aviation Turbine Fuels
D4057 Practice for Manual Sampling of Petroleum and Petroleum Products
1
This test method is under the jurisdiction of ASTM International Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility
of Subcommittee D02.J0.03 on Combustion and Thermal Properties. The technically equivalent standard as referenced is under the jurisdiction of the Energy Institute
Subcommittee SC-B-8.
Current edition approved Oct. 1, 2023March 1, 2024. Published October 2023March 2024. Originally approved in 1973. Last previous edition approved in 2023 as
ɛ1
D3241 – 23.D3241 – 23a . DOI: 10.1520/D3241-23AE01.10.1520/D3241-24.
2
This test method has been developed through the cooperative effort between ASTM and the Energy Institute, London. ASTM and IP standards were approved by ASTM
and EI technical committees as being technically equivalent but that does not imply both standards are 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.
*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 ----------------------
D3241 − 24
D4175 Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
D4306 Practice for Aviation Fuel Sample Containers for Tests Affected by Trace Contamination
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
4
2.2 ISO Standards:
ISO 3274 Geometrical Product Specifications (GPS)—Surface texture: Profile method—Nominal characteristics of contact
(stylus) instruments
ISO 4288 Geometrical Product Specifications (GPS)—Surface texture: Profile method—Rules and procedures for the
assessment of surface texture
5
2.3 ASTM Adjuncts:
Color Standard for Heater Tube Deposit Rating
3. Terminology
3.1 Definitions:
3.1.1 For definitions of terms used in this test method, refer to Terminology D4175.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 deposits, n—oxidative products laid down on the test area of the heater tube or caught in the test filter, or both.
3.2.1.1 Discussion—
Fuel deposits will tend to predominate at the hottest portion of the heater tube,
...
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