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Scope

1.1 This test method covers a procedure for the rapid determination of phenalenes and phenalenones in middle distillate fuels, including marine, automotive, heating, and gas turbine fuel such as those specified in Specifications D 396, D 975, D 2069, and D 2880. Phenalenes and phenalenones affect the potential instability of fuels, leading to fuel degradation products during storage, which may cause performance problems.

1.2 This test method is applicable to both dyed and undyed fuels at all points in the distribution chain from refinery to end-user. It is not applicable to fuels containing residual oil. The portable apparatus allows the whole test to be conducted on site or in a laboratory and does not require the test sample to be heated.

1.3 This test method is suitable for testing samples with a relative absorbance of up to 5.00 absorbance units (AU).

Note 1—The precision of the test method has been established on relative absorbance up to 1.00 AU. For relative absorbance above 1.00 AU the precision may not apply.

1.4 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.

Keywords

absorbance units; burner fuel; diesel fuel; infra-red; infra red spectrophotometer; marine fuel; middle distillate fuel; potential instability; spectrometer; spectrophotometer; storage stability; turbine fuel; visible spectrophotometer; ICS Number Code 75.160.20 (Liquid fuels)

To find similar documents by ASTM Volume:

05.03 (Petroleum Products and Lubricants (III): D6138 - D6971)

To find similar documents by classification:

75.160.20 (Liquid fuels Including gasoline, diesel, kerosene, etc.)

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