ASTM D3703-99(2004)

Standard Test Method for Peroxide Number of Aviation Turbine Fuels

SIGNIFICANCE AND USE
The magnitude of the peroxide number is an indication of the quantity of oxidizing constituents present. Deterioration of turbine fuel results in the formation of peroxides and other oxygen-carrying compounds. The peroxide number measures those compounds that will oxidize potassium iodide.  
The determination of the peroxide number of aviation turbine fuels is significant because of the adverse effect of peroxides upon certain elastomers in the fuel systems.
SCOPE
1.1 This test method covers the determination of the peroxide content of aviation turbine fuels.  
1.2 This standard does not purport to address all of the safety problems, 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 precautionary statements, see 6.3, 6.5, 6.6, 8.2 and Annex A1.

General Information

• Status: Historical
• Publication Date: 31-Oct-2004
• ICS: 75.160.20 - Liquid fuels
• Technical Committee: D02 - Petroleum Products, Liquid Fuels, and Lubricants
• Drafting Committee: D02.05 - Properties of Fuels, Petroleum Coke and Carbon Material

Relations

• Replaces: ASTM D3703-99 - Standard Test Method for Peroxide Number of Aviation Turbine Fuels
• Effective Date: 01-Nov-2004
• Replaced By: ASTM D3703-07 - Standard Test Method for Hydroperoxide Number of Aviation Turbine Fuels, Gasoline and Diesel Fuels
• Effective Date: 01-Dec-2007
• Referred By: ASTM D2699-23 - Standard Test Method for Research Octane Number of Spark-Ignition Engine Fuel
• Effective Date: 01-Nov-2004
• Referred By: ASTM D6447-09(2021) - Standard Test Method for Hydroperoxide Number of Aviation Turbine Fuels by Voltammetric Analysis
• Effective Date: 01-Nov-2004
• Referred By: ASTM D613-23 - Standard Test Method for Cetane Number of Diesel Fuel Oil
• Effective Date: 01-Nov-2004
• Referred By: ASTM D2700-23 - Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel
• Effective Date: 01-Nov-2004
• Referred By: ASTM D4054-23 - Standard Practice for Evaluation of New Aviation Turbine Fuels and Fuel Additives
• Effective Date: 01-Nov-2004
• Referred By: ASTM C1572/C1572M-23 - Standard Guide for Dry Lead Glass and Oil-Filled Lead Glass Radiation Shielding Window Components for Remotely Operated Facilities
• Effective Date: 01-Nov-2004
• Referred By: ASTM D8183-22 - Standard Test Method for Determination of Indicated Cetane Number (ICN) of Diesel Fuel Oils using a Constant Volume Combustion Chamber—Reference Fuels Calibration Method
• Effective Date: 01-Nov-2004

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:D3703–99 (Reapproved 2004)
Standard Test Method for
Peroxide Number of Aviation Turbine 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 4. Significance and Use
1.1 This test method covers the determination of the perox- 4.1 The magnitude of the peroxide number is an indication
ide content of aviation turbine fuels. of the quantity of oxidizing constituents present. Deterioration
1.2 This standard does not purport to address all of the of turbine fuel results in the formation of peroxides and other
safety concerns, if any, associated with its use. It is the oxygen-carrying compounds. The peroxide number measures
responsibility of the user of this standard to consult and those compounds that will oxidize potassium iodide.
establish appropriate safety and health practices and deter- 4.2 The determination of the peroxide number of aviation
mine the applicability of regulatory limitations prior to use. turbine fuels is significant because of the adverse effect of
For specific warning statements, see 6.3, 6.6, 8.2, and Annex peroxides upon certain elastomers in the fuel systems.
A1.
5. Apparatus
2. Referenced Documents
5.1 Iodine Number Flask, 250 mL, glass-stoppered.
2.1 ASTM Standards:
6. Reagents
D 1193 Specification for Reagent Water
D 4057 Practice for Manual Sampling of Petroleum and 6.1 Purity of Reagents—Reagent grade chemicals shall be
used in all tests. Unless otherwise indicated, it is intended that
Petroleum Products
2.2 Other Standards: all reagents shall conform to the specifications of the Commit-
tee onAnalytical Reagents of theAmerican Chemical Society,
CRC Report No. 559 Determination of the Hydroperoxide
3 5
Potential of Jet Fuels where such specifications are available. Other grades may be
4500-C1 B. Iodometric Method I—Standard Methods for used, provided it is first ascertained that the reagent is of
sufficiently high purity to permit its use without lessening the
the Examination of Water and Wastewater
accuracy of the determination.
3. Summary of Test Method
6.2 PurityofWater—Unless otherwise indicated, references
3.1 A quantity of sample dissolved in 1,1,2-trichloro-1,2,2- to water shall be understood to mean reagent water conforming
trifluoroethane is contacted with aqueous potassium iodide to Specification D 1193, Type II.
solution. The peroxides present are reduced by the potassium 6.3 AceticAcidSolution—Mix 4 mLof concentrated hydro-
iodide. An equivalent amount of iodine is liberated, which is chloric acid (HCl, sp gr 1.19) with 996 mL of glacial acetic
titrated with sodium thiosulfate solution. The results are acid(CH COOH).(Warning—PoisonCorrosive.Combustible
calculated as milligrams per kilogram (ppm) of peroxide. can be fatal if swallowed. Causes severe burns. Harmful if
inhaled. See A1.2).
6.4 1,1,2-Trichloro-1,2,2 Trifluoroethane. (Warning—
This test method is under the jurisdiction of ASTM Committee D02 on
See A1.1.)
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
6.5 Potassium Dichromate Solution, Standard (0.1 N)—
D02.05 on Properties of Fuels, Petroleum Coke and Carbon Material.
Current edition approved Nov. 1, 2004. Published November 2004. Originally
ACS reagent grade. Dissolve 2.452 g of the dried potassium
approved in 1978. Last previous edition approved in 1999 as D 3703 – 99.
dichromate (K Cr O ) in water and dilute to 500 mL in a
2 2 7
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. “Reagent Chemicals, American Chemical Society Specifications,” American
Available from the Coordinating Research Council, Inc., 219 Perimeter Center Chemical Society, Washington, D.C. For suggestions on the testing of reagents not
Parkway, Atlanta, GA 30346. listed by the American Chemical Society, see Analar Standards for Laboratory
Published by the American Health Assoc., the American Water Works Assoc. Chemicals, BDH Ltd., Poole, Dorset, U.K., and the United States Pharmacopeia
and Water Environment Federation. Available from American Public Health and National Formulary, U.S. Pharmacopeial Convention, Inc. (USPC), Rockvelle,
Publication Sales, P. O. Box 753, Waldorf, MD 20604–0753. MD.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D3703–99 (2004)
volumetricflask.Thissolutionis0.1N.Asanalterative,thelab 8. Procedure
may use commercially prepared solution.
8.1 Select the appropriate weight of sample from the fol-
6.6 Potassium Dichromate Solution, Standard (0.01 N)
lowing table:
(Warning—Avoid contact with eyes and skin and avoid
Estimated Peroxide Number,
Sample Mass, g
mg/kg
breathing of dust)—Dilute 100 mL of 0.1 N K Cr O solution
2 2 7
0to10 50
with water to 1000 mL in a volumetric flask.
11 to 30 35
31 to 50 25
6.7 Potassium Iodide Solution—Dissolve 120 g of potas-
51 to 80 10
sium iodide (KI) in 100 mL of water. Larger quantities of
81 to 100 5
solution may be prepared, provided the concentration of KI in
8.2 Weigh the sample into a 250-mL iodine flask that has
water is equivalent. Discharge any color from this solution by
been flushed with nitrogen or carbon dioxide. Add 25 mL of
placing 1 mL of KI solution, 50 mL of water, and 5 mL of
1,1,2-trichloro-1,2,2,trifluoroethane (Warning—See A1.1).
starch solution in a 300-mL flask and blanketing with nitrogen
Pass a vigorous flow of nitrogen or carbon dioxide through the
or carbon dioxide. If a blue color develops, add 0.005 N
solvent for at least 1 min; then, without stopping the gas flow,
Na S O solution from a microburet until color just disappears.
2 3
add 20 mLof acetic acid solution and reduce the flow of gas so
AddasufficientquantityofNa S O solution,thusdetermined,
2 2 3
that the rate is one bubble per second.Add 2 mLof KI solution
to the main KI solution to convert all free iodine to iodide.
and mix vigorously for 30 6 1 s. Set the flask aside to stand for
When properly prepared, 1 mL of KI solution should not turn
5 min 63s.
blue when starch solution is added, but with starch plus one
8.3 At the end of the reaction period, add 100 mL of water
drop of 0.01 N K Cr O solution plus two drops of HCl, the
2 2 7
and stop t
...