ASTM D3703-07
(Test Method)Standard Test Method for Hydroperoxide Number of Aviation Turbine Fuels, Gasoline and Diesel Fuels
Standard Test Method for Hydroperoxide Number of Aviation Turbine Fuels, Gasoline and Diesel Fuels
SIGNIFICANCE AND USE
The magnitude of the hydroperoxide number is an indication of the quantity of oxidizing constituents present. Deterioration of the fuels results in the formation of hydroperoxides and other oxygen-carrying compounds. The hydroperoxide number measures those compounds that will oxidize potassium iodide.
The determination of the hydroperoxide number of aviation turbine fuels, gasoline and diesel is significant because of the adverse effect of hydroperoxide upon certain elastomers in the fuel systems.
5.3 The determination of hydroperoxide number of gasoline is significant because hydroperoxides have been demonstrated to decrease both Research and Motor Octane Numbers. In addition, hydroperoxides have adverse effects on certain fuel system components.
5.4 The determination of hydroperoxide number of diesel fuel is significant because hydroperoxides have been demonstrated to increase the Cetane Number. In addition, hydroperoxides have adverse effects on certain fuel system components.
SCOPE
1.1 This test method covers the determination of the hydroperoxide content expressed as hydroperoxide number of aviation turbine, gasoline and diesel fuels.
1.2 The range of hydroperoxide number included in the precision statement is 0 to 50 mg/kg active oxygen as hydroperoxide.
1.3 The interlaboratory study to establish the precision of this test method consisted of spark-ignition engine fuels (regular, premium and California Cleaner-Burning gasoline), aviation gasoline, jet fuel, ultra low sulfur diesel, and biodiesel. However, biodiesel was not included in the precision calculation because of the large differences in results within labs and between labs.
1.4 This test method detects hydroperoxides such as t-butyl hydroperoxide and cumene hydroperoxide. It does not detect sterically-hindered hydroperoxides such as dicumyl and di-t-butyl hydroperoxides
1.5 Di-alkyl hydroperoxides added commercially to diesel fuels are not detected by this test method.
1.6 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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 consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific warning statements, see 7.3, 7.6, 9.2, and Annex A1.
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Designation:D3703–07
Standard Test Method for
Hydroperoxide Number of Aviation Turbine Fuels, Gasoline
1
and Diesel Fuels
This standard is issued under the fixed designation D3703; 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 Department of Defense.
1. Scope* 2. Referenced Documents
2
1.1 This test method covers the determination of the hydro- 2.1 ASTM Standards:
peroxide content expressed as hydroperoxide number of avia- D1193 Specification for Reagent Water
tion turbine, gasoline and diesel fuels. D4057 Practice for Manual Sampling of Petroleum and
1.2 The range of hydroperoxide number included in the Petroleum Products
precision statement is 0 to 50 mg/kg active oxygen as hydro- D6447 Test Method for Hydroperoxide Number ofAviation
peroxide. Turbine Fuels by Voltammetric Analysis
1.3 The interlaboratory study to establish the precision of 2.2 Other Standards:
this test method consisted of spark-ignition engine fuels CRC Report No. 559 Determination of the Hydroperoxide
3
(regular, premium and California Cleaner-Burning gasoline), Potential of Jet Fuels
aviationgasoline,jetfuel,ultralowsulfurdiesel,andbiodiesel. 4500-C1 B. Iodometric Method I—Standard Methods for
4
However, biodiesel was not included in the precision calcula- the Examination of Water and Wastewater
tion because of the large differences in results within labs and
3. Terminology
between labs.
3.1 Definitions of Terms Specific to This Standard:
1.4 This test method detects hydroperoxides such as t-butyl
hydroperoxide and cumene hydroperoxide. It does not detect 3.1.1 hydroperoxide, n—organic peroxide having the gen-
eralized formula ROOH.
sterically-hindered hydroperoxides such as dicumyl and di-t-
butyl hydroperoxides 3.1.1.1 Discussion—This test method detects hydroperox-
1.5 Di-alkyl hydroperoxides added commercially to diesel idessuchast-butylhydroperoxide[(CH ) COOH]andcumene
3 3
hydroperoxide [C H C(CH ) OOH]. It does not detect
fuels are not detected by this test method.
6 5 3 2
1.6 The values stated in SI units are to be regarded as sterically-hindered hydroperoxides such as dicumyl and di-t-
butyl hydroperoxides.
standard. No other units of measurement are included in this
standard. 3.1.2 hydroperoxide number, n—an indication of the quan-
tity of oxidizing constituents present in certain liquid fuels as
1.7 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the determined by this test method.
3.1.2.1 Discussion—The higher the quantity of oxidizing
responsibility of the user of this standard to consult and
establish appropriate safety and health practices and deter- constituents in the fuels, the higher the hydroperoxide number.
mine the applicability of regulatory limitations prior to use.
For specific warning statements, see 7.3, 7.6, 9.2, and Annex
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
A1.
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
1
This test method is under the jurisdiction of ASTM Committee D02 on the ASTM website.
3
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee Available from the Coordinating Research Council, Inc., 219 Perimeter Center
D02.05 on Properties of Fuels, Petroleum Coke and Carbon Material. Parkway, Atlanta, GA 30346.
4
Current edition approved Dec. 1, 2007. Published January 2008. Originally Published by the American Health Assoc., the American Water Works Assoc.
approved in 1978. Last previous edition approved in 2004 as D3703–99(2004). and Water Environment Federation. Available from American Public Health
DOI: 10.1520/D3703-07. Publication Sales, P. O. Box 753, Waldorf, MD 20604–0753.
*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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---------------------- Page: 1 ----------------------
D3703–07
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4. Summary of Test Method where such specifications are available. Other grades may be
used, provided it is first ascertained that the reagent is of
4.1 A quantity of sample dissolved in 2,2,4-
sufficiently high purity to permit its use without lessening the
trimethylpentane is contacted with aqueous potassium iodide
accuracy of the determination.
solution. The hydroperoxides present are reduced by the
7.1.1 Commercially available solutions already prepared
potassium iodide.An equ
...
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.
An American National Standard
Designation:D3703–99 (Reapproved 2004) Designation:D3703–07
Standard Test Method for
Peroxide Number of Aviation Turbine FuelsHydroperoxide
Number of Aviation Turbine Fuels, Gasoline and Diesel
1
Fuels
This standard is issued under the fixed designation D 3703; 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 (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope
1.1This test method covers the determination of the peroxide content of aviation turbine fuels.
1.2*
1.1 This test method covers the determination of the hydroperoxide content expressed as hydroperoxide number of aviation
turbine, gasoline and diesel fuels.
1.2 The range of hydroperoxide number included in the precision statement is 0 to 50 mg/kg active oxygen as hydroperoxide.
1.3 The interlaboratory study to establish the precision of this test method consisted of spark-ignition engine fuels (regular,
premium and California Cleaner-Burning gasoline), aviation gasoline, jet fuel, ultra low sulfur diesel, and biodiesel. However,
biodiesel was not included in the precision calculation because of the large differences in results within labs and between labs.
1.4 This test method detects hydroperoxides such as t-butyl hydroperoxide and cumene hydroperoxide. It does not detect
sterically-hindered hydroperoxides such as dicumyl and di-t-butyl hydroperoxides
1.5 Di-alkyl hydroperoxides added commercially to diesel fuels are not detected by this test method.
1.6 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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 consult and establish appropriate safety and health practices and determine the applicability of
regulatory limitations prior to use. For specific warning statements, see 6.37.3, 6.6, 8.27.6, 9.2, and Annex A1.
2. Referenced Documents
2
2.1 ASTM Standards:
D 1193 Specification for Reagent Water
D 4057Practice for Manual Sampling of Petroleum and Petroleum Products Practice for Manual Sampling of Petroleum and
Petroleum Products
D 6447 Test Method for Hydroperoxide Number of Aviation Turbine Fuels by Voltammetric Analysis
2.2 Other Standards:
3
CRC Report No. 559 Determination of the Hydroperoxide Potential of Jet Fuels
4
4500-C1 B. Iodometric Method I—Standard Methods for the Examination of Water and Wastewater
3. Summary of Test Method
3.1A quantity of sample dissolved in 1,1,2-trichloro-1,2,2-trifluoroethane is contacted with aqueous potassium iodide solution.
The peroxides present are reduced by the potassium iodide. An equivalent amount of iodine is liberated, which is titrated with
sodium thiosulfate solution. The results are calculated as milligrams per kilogram (ppm) of peroxide. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 hydroperoxide, n—organic peroxide having the generalized formula ROOH.
1
This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products and Lubricants and is the direct responsibility of Subcommittee D02.05 on
Properties of Fuels, Petroleum Coke and Carbon Material.
Current edition approved Nov.Dec. 1, 2004.2007. Published November 2004.January 2008. Originally approved in 1978. Last previous edition approved in 19992004 as
D3703–99.D 3703–99(2004).
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book ofASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from the Coordinating Research Council, Inc., 219 Perimeter Center Parkway, Atlanta, GA 30346.
4
Published by the American Health Assoc., the American Water Works Assoc. and Water Environment Federation. Available from American Public Health Publication
Sales, P. O. Box 753, Waldorf, MD 20604–0753.
*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 ----------------------
D3703–07
3.1.1.1 Discussion—This test method detects hydroperoxides
...
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