Standard Test Method for Determination of Cycloparaffin Content in Saturated ATJ-SPK Jet Fuel Gas Chromatography

Importancia y uso:

5.1 This test method applies specifically to the ATJ-SPK jet fuel as specified in Specification D7566, section A5.4.1, derived from isobutanol and follows the fuel fingerprint described in the annex of this test method. It may not apply to other types of ATJ-SPK fuels.

5.2 Table A2.2 in Specification D7566 prescribes cycloparaffin concentration be a maximum of 15 % by mass.

5.3 Due to the nature of the chemical composition of ATJ-SPK jet fuel, standard analysis of the sample by Test Method D2425 for cycloparaffin content may yield a higher concentration of cycloparaffins than are actually present in the sample.

5.4 This method alleviates the potential for overestimating the cycloparaffin concentration by measuring the concentration of identified paraffins. Any remaining unidentified compounds are classified as potential cycloparaffins.

Subcomité:

D02.04.0L

Volúmen:

05.05

Número ICS:

75.160.20 (Liquid fuels)

Palabras clave:

ATJ-SPK jet fuel; butanol; butanols; cycloparaffin; gas chromatography; paraffin;