ASTM D6732 - 04(2010)

    Standard Test Method for Determination of Copper in Jet Fuels by Graphite Furnace Atomic Absorption Spectrometry

    Active Standard ASTM D6732 | Developed by Subcommittee: D02.03

    Book of Standards Volume: 05.03


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    Significance and Use

    At high temperatures aviation turbine fuels can oxidize and produce insoluble    deposits that are detrimental to aircraft propulsion systems. Very low copper    concentrations (in excess of 50 μg/kg) can significantly accelerate this thermal instability of aviation turbine fuel. Naval shipboard aviation fuel delivery systems    contain copper-nickel piping, which can increase copper levels in the fuel. This test    method may be used for quality checks of copper levels in aviation fuel samples    taken on shipboard, in refineries, and at fuel storage depots.

    1. Scope

    1.1 This test method covers the determination of copper in jet fuels in the range of 5 to 100 μg/kg using graphite furnace atomic absorption spectrometry. Copper contents above 100 μg/kg may be determined by sample dilution with kerosine to bring the copper level into the aforementioned method range. When sample dilution is used, the precision statements do not apply.

    1.2 The values stated in SI units are to be regarded as standard.

    1.3 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.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D4057 Practice for Manual Sampling of Petroleum and Petroleum Products

    D4306 Practice for Aviation Fuel Sample Containers for Tests Affected by Trace Contamination

    D6299 Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measurement System Performance


    ICS Code

    ICS Number Code 71.040.50 (Physicochemical methods of analysis); 75.160.20 (Liquid fuels)

    UNSPSC Code

    UNSPSC Code 15101504(Aviation fuel)


    DOI: 10.1520/D6732-04R10

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