Standard Test Method for Determination of Saturated Hydrocarbon, Aromatic, and Diaromatic Content of Aviation Turbine Fuels Using Gas Chromatography with Vacuum Ultraviolet Absorption Spectroscopy Detection (GC-VUV)
|Publication Date:||1 June 2019|
This test method is a standard procedure for the determination of saturated, aromatic, and diaromatic content in aviation turbine fuels using gas chromatography and vacuum ultraviolet detection (GC-VUV).
Concentrations of compound classes and certain individual compounds are determined by percent mass or percent volume.
This test method is developed for testing aviation turbine engine fuels having concentrations of approximately 70 % to 99 % by volume saturated compounds, 1.0 % to 30 % by volume aromatic compounds, and 0.1 % to 5 % by volume diaromatics. Pending confirmation by a full interlaboratory study, this test method is projected to be applicable to a wider range of concentrations and matrices. Temporary repeatability has been determined on a limited subset of samples given in 17.1.
NOTE 1-Samples with a final boiling point greater than 300 °C that contain triaromatics and higher polyaromatic compounds are not determined by this test method.
Individual hydrocarbon components are not reported by this test method, however, any individual component determinations are included in the appropriate summation of the saturate, aromatic, or diaromatic groups.
Individual compound peaks are typically not baselineseparated by the procedure described in this test method, that is, some components will coelute. The coelutions are resolved at the detector using VUV absorbance spectra and deconvolution algorithms.
This test method has been tested for aviation turbine engine fuels; this test method may apply to other hydrocarbon streams boiling between hexane (68 °C) and heneicosane (356 °C), including sustainable alternative jet fuels but has not been extensively tested for such applications.
Units-The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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.
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.