ASTM D3241-14b
(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 WARNING—Mercury has been designated by many regulatory agencies as a hazardous material that can cause central nervous system, kidney and liver damage. Mercury, or its vapor, may be hazardous to health and corrosive to materials. Caution should be taken when handling mercury and mercury containing products. See the applicable product Material Safety Data Sheet (MSDS) for details and EPA’s website—http://www.epa.gov/mercury/faq.htm—for additional information. Users should be aware that selling mercury and/or mercury containing products into your state or country may be prohibited by law.
1.7 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. For specific warning statements, see 6.1.1, 7.2, 7.2.1, 7.3, 11.1.1, and Annex A5.
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Designation: D3241 − 14b AnAmerican National Standard
Designation 323/99
Standard Test Method for
1
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.Anumber 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
2
1.1 This test method covers the procedure for rating the 2.1 ASTM Standards:
tendencies of gas turbine fuels to deposit decomposition D1655Specification for Aviation Turbine Fuels
products within the fuel system. D4306Practice for Aviation Fuel Sample Containers for
Tests Affected by Trace Contamination
1.2 The differential pressure values in mm Hg are defined
E177Practice for Use of the Terms Precision and Bias in
only in terms of this test method.
ASTM Test Methods
1.3 The deposition values stated in SI units shall be re-
E691Practice for Conducting an Interlaboratory Study to
garded as the referee value.
Determine the Precision of a Test Method
3
1.4 The pressure values stated in SI units are to be regarded
2.2 ISO Standards:
as standard. The psi comparison is included for operational
ISO 3274 Geometrical Product Specifications (GPS)—
safety with certain older instruments that cannot report pres-
Surface Texture: Profile Method—Nominal Characteris-
sure in SI units.
tics Of Contact (Stylus) Instruments
ISO 4288 Geometrical Product Specifications (GPS)—
1.5 No other units of measurement are included in this
Surface Texture: Profile Method—Rules And Procedures
standard.
For The Assessment Of Surface Texture
1.6 WARNING—Mercury has been designated by many
4
2.3 ASTM Adjuncts:
regulatory agencies as a hazardous material that can cause
Color Standard for Tube Deposit Rating
central nervous system, kidney and liver damage. Mercury, or
its vapor, may be hazardous to health and corrosive to
3. Terminology
materials.Cautionshouldbetakenwhenhandlingmercuryand
mercury containing products. See the applicable product Ma-
3.1 Definitions of Terms Specific to This Standard:
terial Safety Data Sheet (MSDS) for details and EPA’s
3.1.1 deposits, n—oxidative products laid down on the test
website—http://www.epa.gov/mercury/faq.htm—for addi-
area of the heater tube or caught in the test filter, or both.
tional information. Users should be aware that selling mercury
3.1.1.1 Discussion—Fuel deposits will tend to predominate
and/or mercury containing products into your state or country
at the hottest portion of the heater tube, which is between the
may be prohibited by law.
30-mm and 50-mm position.
1.7 This standard does not purport to address all of the
3.1.2 heater tube, n—an aluminum coupon controlled at
safety concerns, if any, associated with its use. It is the
elevated temperature, over which the test fuel is pumped.
responsibility of the user of this standard to establish appro-
3.1.2.1 Discussion—The tube is resistively heated and con-
priate safety and health practices and determine the applica-
trolled in temperature by a thermocouple positioned inside.
bility of regulatory limitations prior to use. For specific
The critical test area is the thinner portion, 60 mm in length,
warning statements, see 6.1.1, 7.2, 7.2.1, 7.3, 11.1.1, and
Annex A5.
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
1
This test method is under the jurisdiction of ASTM Committee D02 on Standards volume information, refer to the standard’s Document Summary page on
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of the ASTM website.
3
Subcommittee D02.J0.03 on Combustion and Thermal Properties. Available from International Organization for Standardization (ISO), 1, ch. de
Current edition approved Dec. 1, 2014. Published February 2015. Originally la Voie-Creuse, CP 56, CH-1211 Geneva 20, Switzerland, http://www.iso.org.
4
approved in 1973. Last previous edition approved in 2014 as D3241–14a. DOI: Available from ASTM International Headquarters. Order Adjunct No.
10.1520/D3241-14B. 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
1
---------------------- Page: 1 ----------------------
D3241 − 14b
betweentheshouldersofthetube.Fuelinlettothetubeisatthe 6.1.2 Certain operational parameters used with the instru-
0-mm position, and fuel exit is at 60 mm. ment are criti
...
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 − 14a D3241 − 14b An American National Standard
Designation 323/99
Standard Test Method for
1
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 WARNING—Mercury has been designated by many regulatory agencies as a hazardous material that can cause central
nervous system, kidney and liver damage. Mercury, or its vapor, may be hazardous to health and corrosive to materials. Caution
should be taken when handling mercury and mercury containing products. See the applicable product Material Safety Data Sheet
(MSDS) for details and EPA’s website—http://www.epa.gov/mercury/faq.htm—for additional information. Users should be aware
that selling mercury and/or mercury containing products into your state or country may be prohibited by law.
1.7 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. For specific warning statements, see 6.1.1, 7.2, 7.2.1, 7.3, 11.1.1, and Annex A5.
2. Referenced Documents
2
2.1 ASTM Standards:
D1655 Specification for Aviation Turbine Fuels
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
3
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
4
2.3 ASTM Adjuncts:
Color Standard for Tube Deposit Rating
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.J0.03 on Combustion and Thermal Properties.
Current edition approved Oct. 1, 2014Dec. 1, 2014. Published December 2014February 2015. Originally approved in 1973. Last previous edition approved in 2014 as
D3241 – 14.D3241 – 14a. DOI: 10.1520/D3241-14A.10.1520/D3241-14B.
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
Available from International Organization for Standardization (ISO), 1, ch. de la Voie-Creuse, CP 56, CH-1211 Geneva 20, Switzerland, http://www.iso.org.
4
Available from ASTM International Headquarters. Order Adjunct No. 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
1
---------------------- Page: 1 ----------------------
D3241 − 14b
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
...
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