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ASTM D6447-03

(Test Method)

Standard Test Method for Hydroperoxide Number of Aviation Turbine Fuels by Voltammetric Analysis

Standard Test Method for Hydroperoxide Number of Aviation Turbine Fuels by Voltammetric Analysis

SIGNIFICANCE AND USE
This test method is functionally equivalent to Test Method D 3703, which uses an ozone depleting substance, (1,1,2-trichloro-1,2,2-trifluoroethane). The use of an ozone depleting substance precludes U. S. military bases from utilizing Test Method D 3703. This test method and Test Method D 3703 measure the same peroxide species (primarily hydroperoxides) in aviation fuels.
The magnitude of the hydroperoxide number is an indication of the quantity of oxidizing constituents present. Deterioration of fuel 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 fuels is significant because of the adverse effect of hydroperoxides upon certain elastomers in the fuel systems.
SCOPE
1.1 The test method covers the determination of the hydroperoxide content of aviation turbine fuels. The test method may also be applicable to the determination of the hydroperoxide content of any water-insoluble, organic fluid, particularly diesel fuels, gasolines, and kerosines.
1.2 The values stated in SI units are to be regarded as the standard.
1.3 This standard does not purport to address all 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 6.3-6.5, Annex A1, and Annex A2.

General Information

Status
Historical
Publication Date
31-Oct-2003
ICS
27.060.10 - Liquid and solid fuel burners
Technical Committee
D02 - Petroleum Products, Liquid Fuels, and Lubricants
Drafting Committee
D02.05 - Properties of Fuels, Petroleum Coke and Carbon Material
Current Stage
Ref Project

Relations

Replaces
ASTM D6447-99 - Standard Test Method for Hydroperoxide Number of Aviation Turbine Fuels by Voltammetric Analysis
Effective Date
01-Nov-2003
Replaced By
ASTM D6447-09 - Standard Test Method for Hydroperoxide Number of Aviation Turbine Fuels by Voltammetric Analysis
Effective Date
15-Apr-2009
Referred By
ASTM D6810-22 - Standard Test Method for Measurement of Hindered Phenolic Antioxidant Content in Non-Zinc Turbine Oils by Linear Sweep Voltammetry
Effective Date
01-Nov-2003
Referred By
ASTM D3703-18 - Standard Test Method for Hydroperoxide Number of Aviation Turbine Fuels, Gasoline and Diesel Fuels
Effective Date
01-Nov-2003

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ASTM D6447-03 - Standard Test Method for Hydroperoxide Number of Aviation Turbine Fuels by Voltammetric AnalysisASTM D6447-03 - Standard Test Method for Hydroperoxide Number of Aviation Turbine Fuels by Voltammetric Analysis
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ASTM D6447-03 - Standard Test Method for Hydroperoxide Number of Aviation Turbine Fuels by Voltammetric Analysis
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Standards Content (Sample)

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
An American National Standard
Designation:D6447–03
Standard Test Method for
Hydroperoxide Number of Aviation Turbine Fuels by
1
Voltammetric Analysis
This standard is issued under the fixed designation D6447; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope* (1,1,2-trichloro-1,2,2-trifluoroethane). The use of an ozone
depleting substance precludes U. S. military bases from utiliz-
1.1 The test method covers the determination of the hydro-
ing Test Method D3703. This test method and Test Method
peroxidecontentofaviationturbinefuels.Thetestmethodmay
D3703 measure the same peroxide species (primarily hydro-
also be applicable to the determination of the hydroperoxide
peroxides) in aviation fuels.
content of any water-insoluble, organic fluid, particularly
4.2 The magnitude of the hydroperoxide number is an
diesel fuels, gasolines, and kerosines.
indication of the quantity of oxidizing constituents present.
1.2 The values stated in SI units are to be regarded as the
Deteriorationoffuelresultsintheformationofhydroperoxides
standard.
and other oxygen-carrying compounds. The hydroperoxide
1.3 This standard does not purport to address all the safety
numbermeasuresthosecompoundsthatwilloxidizepotassium
concerns, if any, associated with its use. It is the responsibility
iodide.
of the user of this standard to consult and establish appropriate
4.3 Thedeterminationofthehydroperoxidenumberoffuels
safety and health practices and determine the applicability of
is significant because of the adverse effect of hydroperoxides
regulatory limitations prior to use. For specific warning
upon certain elastomers in the fuel systems.
statements, see 6.3-6.5, Annex A1, and Annex A2.
5. Apparatus
2. Referenced Documents
3
2
5.1 Voltammetric Analyzer —The instrument used to quan-
2.1 ASTM Standards:
tify the liberated iodine is a voltammetric analyzer equipped
D1193 Specification for Reagent Water
with a three electrode system and a digital or analog output.
D3703 Test Method for Peroxide Number of Aviation
The combination electrode system (see Fig. 1) consists of a
Turbine Fuels
glassy carbon disc (3-mm diameter) working electrode, a
D4057 Practice for Manual Sampling of Petroleum and
platinum wire (0.5 mm diameter) auxiliary electrode, and a
Petroleum Products
platinum wire (0.5 mm diameter) reference electrode. The
3. Summary of Test Method voltammetricanalyzerappliesalinearvoltageramp(0to−1V
range with respect to the reference electrode) at a rate of 0.1
3.1 A quantity of sample is contacted with aqueous potas-
V/s to the auxiliary electrode. The current output of the
sium iodide solution in the presence of acid. The hydroperox-
working electrode is converted to voltage by the voltammetric
ides present are reduced by the potassium iodide. An equiva-
analyzer, using the gain ratio of 1V/20µA. The peak height or
lent amount of iodine is liberated, which is quantified by
peakareaofthevoltammetricresponsetoiodineisoutputtedto
voltammetric analysis. The results are calculated and reported
an analog or digital recording device (0 to 1 V full scale).
as millimoles (mmole) of hydroperoxide per litre of sample.
4
5.2 Vortex Mixer, with a 2800 to 3000 rpm motor and a
4. Significance and Use
pad suitable for mixing test tubes and vials.
5.3 Pipette, or equivalent, capable of delivering volumes
4.1 This test method is functionally equivalent to Test
required in the test method, such as 0.2, 1, and 2 mL.
Method D3703, which uses an ozone depleting substance,
1 3
This test method is under the jurisdiction of ASTM Committee D02 on Voltammetric analyzers specifically designed to perform hydroperoxide value
PetroleumProductsandLubricantsandisthedirectresponsibilityofSubcommittee determinations of aviation turbine fuels are commercially available from The
D02.05 on Properties of Fuels, Petroleum Coke and Carbon Material. University of Dayton Research Institute. Voltammographs, which can be set up to
Current edition approved Nov. 1, 2003. Published November 2003. Originally perform hydroperoxide value determinations of aviation turbine fuels, are available
approved in 1999. Last previous edition approved in 1999 as D6447–99. from BAS, West Lafayette, IN and EG&G PrincetonApplied Research, Princeton,
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or NJ.
4
contactASTM Customer Service at service@astm.org. ForAnnual Book ofASTM Vortex mixers suitable for mixing the prepared standard and sample solution
Standards volume information, refer to the standard’s Document Summary page on are available from Barnstead/Thermolyne, Dub
...

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Standard Test Method for Hydroperoxide Number of Aviation Turbine Fuels by Voltammetric Analysis

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4.1 This test method and Test Method D3703 measure the same peroxide species (primarily hydroperoxides) in aviation fuels.  
4.2 The magnitude of the hydroperoxide number is an indication of the quantity of oxidizing constituents present. Deterioration of fuel results in the formation of hydroperoxides and other oxygen-carrying compounds. The hydroperoxide number measures those compounds that will oxidize potassium iodide.  
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SCOPE
1.1 The test method covers the determination of the hydroperoxide content of aviation turbine fuels. The test method may also be applicable to the determination of the hydroperoxide content of any water-insoluble, organic fluid, particularly diesel fuels, gasolines, and kerosines.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
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SCOPE
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1.1 This test method covers a procedure to determine a measure of the hydrogen ion activity of high ethanol content fuels. These include denatured fuel ethanol and ethanol fuel blends. The test method is applicable to denatured fuel ethanol and ethanol fuel blends containing ethanol at 51 % by volume, or more.  
1.2 Hydrogen ion activity as measured in this test method is defined as pHe. A pHe value for alcohol solutions is not comparable to pH values of water solutions.  
1.2.1 The value of pHe measured will depend somewhat on the fuel blend, the stirring rate, and the time the electrode is in the fuel.  
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.3.1 Hydrogen ion activity in water is expressed as pH and hydrogen ion activity in ethanol is expressed as pHe.  
1.4 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.  
1.5 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.

  • Standard
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  • Standard
    5 pages
    English language
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