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SAE ARP 5921:2014

$25.35

Evaluation of Coking Propensity of Aviation Lubricants in An Air-Oil Mist Environment Using the Vapor Phase Coker

Published By Publication Date Number of Pages
SAE 2014-04-03 11
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This method is designed to evaluate the coking propensity of synthetic ester-based aviation lubricants under two phase air-oil mist conditions as found in certain parts of a gas turbine engine, for instance, bearing chamber vent lines. Based on the results from round robin data in 2008–2009 from four laboratories, this method is currently intended to provide a comparison between lubricants as a research tool; it is not currently a satisfactory pass/fail test. At this juncture a reference oil may improve reproducibility (precision between laboratories); a formal precision statement will be given when there is satisfactory data and an agreed on, suitable reference oil if applicable.
SAE ARP 5921:2014
$25.35