ASTM D3241-23a

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: D3241 − 23 D3241 − 23a
Designation 323/21
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*
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
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
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 May 1, 2023Oct. 1, 2023. Published July 2023October 2023. Originally approved in 1973. Last previous edition approved in 20202023 as
D3241 – 20c.D3241 – 23. DOI: 10.1520/D3241-23.10.1520/D3241-23A.
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
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D3241 − 23a
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
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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 of Terms Specific to This Standard:
3.1.1 deposits, n—oxidative products laid down on the test area of the heater tube or caught in the test filter, or both.
3.1.1.1 Discussion—
Fuel deposits will tend to predominate at the hottest portion of the heater tube, which is between the 30 mm and 50 mm position.
3.1.2 heater tube, n—an aluminum coupon controlled at elevated temperature, over which the test fuel is pumped.
3.1.2.1 Discussion—
The heater tube is resistively heated and controlled in temperatu
...

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D3241 − 23a
Designation 323/21
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
1.1 This test method covers the procedure for rating the 2.1 ASTM Standards:
D1655 Specification for Aviation Turbine Fuels
tendencies of gas turbine fuels to deposit decomposition
products within the fuel system. D4057 Practice for Manual Sampling of Petroleum and
Petroleum Products
1.2 The differential pressure values in mm Hg are defined
D4306 Practice for Aviation Fuel Sample Containers for
only in terms of this test method.
Tests Affected by Trace Contamination
1.3 The deposition values stated in SI units shall be re-
E177 Practice for Use of the Terms Precision and Bias in
garded as the referee value.
ASTM Test Methods
E691 Practice for Conducting an Interlaboratory Study to
1.4 The pressure values stated in SI units are to be regarded
Determine the Precision of a Test Method
as standard. The psi comparison is included for operational
4
2.2 ISO Standards:
safety with certain older instruments that cannot report pres-
sure in SI units. ISO 3274 Geometrical Product Specifications (GPS)—
Surface texture: Profile method—Nominal characteristics
1.5 No other units of measurement are included in this
of contact (stylus) instruments
standard.
ISO 4288 Geometrical Product Specifications (GPS)—
1.6 This standard does not purport to address all of the
Surface texture: Profile method—Rules and procedures
safety concerns, if any, associated with its use. It is the
for the assessment of surface texture
responsibility of the user of this standard to establish appro- 5
2.3 ASTM Adjuncts:
priate safety, health, and environmental practices and deter-
Color Standard for Heater Tube Deposit Rating
mine the applicability of regulatory limitations prior to use.
For specific warning statements, see 6.1.1, 7.1, 7.3, 12.1.1, and
3. Terminology
Annex A6.
3.1 Definitions of Terms Specific to This Standard:
1.7 This international standard was developed in accor-
3.1.1 deposits, n—oxidative products laid down on the test
dance with internationally recognized principles on standard-
area of the heater tube or caught in the test filter, or both.
ization established in the Decision on Principles for the
3.1.1.1 Discussion—Fuel deposits will tend to predominate
Development of International Standards, Guides and Recom-
at the hottest portion of the heater tube, which is between the
mendations issued by the World Trade Organization Technical
30 mm and 50 mm position.
Barriers to Trade (TBT) Committee.
3.1.2 heater tube, n—an aluminum coupon controlled at
elevated temperature, over which the test fuel is pumped.
3.1.2.1 Discussion—The heater tube is resistively heated
1
This test method is under the jurisdiction of ASTM International Committee
and controlled in temperature by a thermocouple positioned
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
3
Energy Institute Subcommittee SC-B-8. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Oct. 1, 2023. Published October 2023. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1973. Last previous edition approved in 2023 as D3241 – 23. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D3241-23A. 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. United States
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D3241 − 23a
inside. The criti
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