Estrazione asfalteni

ASTM D5452

Standard Test Method for Particulate Contamination in Aviation Fuels by Laboratory Filtration
This test method covers the gravimetric determination by filtration of particulate contaminant in a sample of aviation turbine fuel delivered to a laboratory.
The sample is filtered through a test membrane and a control membrane using vacuum. The mass change difference identifies the contaminant level per unit volume.
The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

IP 423

Determination of particulate contaminant in aviation turbine fuels by laboratory filtration
This standard specifies a method for the gravimetric determination of particulate contaminant in aviation turbine fuel by laboratory filtration. It should be recognised that, due to the difficulty associated with obtaining reliable results, a single one-off determination by this method is of limited value. The prime applicability of this method is to indicate significant trends or changes in particulate levels at specific locations where typical values have been established. This information may be used to monitor the impact of operational changes.



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