Name: ASTM D 7797 : 2012
Brand: ASTM
Price: 62.61 GBP

ASTM D 7797 : 2012

Superseded

Test Method for Determination of the Fatty Acid Methyl Esters Content of Aviation Turbine Fuel Using Flow Analysis by Fourier Transform Infrared Spectroscopy – Rapid Screening Method

Available format(s)

Hardcopy , PDF

Superseded date

11-11-2014

Language(s)

English

Published date

15-04-2012

Publisher

American Society for Testing and Materials

1.1This test method specifies a rapid screening method using flow analysis by Fourier transform infrared (FA-FTIR) spectroscopy with partial least squares (PLS-1) processing for the determination of the fatty acid methyl ester (FAME) content of aviation turbine fuel (AVTUR), in the range of 20 to 150 mg/kg.

Note 1—Specifications falling within the scope of this test method are: Specification D1655 and Defence Standard 91-91 .

Note 2—This test method detects all FAME components, with peak IR absorbance at approximately 1749 cm^-1 and C₈ to C₂₂ molecules, as specified in standards such as Specification D6751 and EN 14214 . The accuracy of the method is based on the molecular weight of C16 to C18 FAME species; the presence of other FAME species with different molecular weights could affect the accuracy.

Note 3—Additives such as antistatic agents, antioxidants and corrosion inhibitors are measured with the FAME by the FTIR spectrometer. However the effects of these additives are removed by the flow analysis processing.

Note 4—FAME concentrations from 150 mg/kg to 500 mg/kg, and below 20 mg/kg can be measured but the precision could be affected.

1.2The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3This 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.

Committee	D 02
DocumentType	Test Method
Pages	6
PublisherName	American Society for Testing and Materials
Status	Superseded
SupersededBy	ASTM D 7797 : 2016

ASTM D 7963 : 2019 : EDT 1	Standard Test Method for Determination of Contamination Level of Fatty Acid Methyl Esters in Middle Distillate and Residual Fuels Using Flow Analysis by Fourier Transform Infrared Spectroscopy—Rapid Screening Method
ASTM D 1655 : 2019	Standard Specification for Aviation Turbine Fuels