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SAE ARP5088 Rev C

Current Revision

Test Method for the Determination of Total Acidity in Polyol Ester and Diester Gas Turbine Lubricants by Automatic Potentiometric Titration


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The test method describes the procedure for determination of the total acid number (TAN) of new and degraded polyol ester and diester-based gas turbine lubricants by the potentiometric titration technique. The method was validated to cover an acidity range of 0.05 to 6.0 mg KOH g 2x. The method may also be suitable for the determination of acidities outside of this range and for other classes of lubricants.

SDO SAE: SAE International
Document Number ARP5088
Publication Date March 18, 2024
Language en - English
Page Count
Revision Level C
Supercedes
Committee
Publish Date Document Id Type View
March 18, 2024 ARP5088C Revision
July 8, 2014 ARP5088B Revision
Sept. 1, 2000 ARP5088A Revision
Jan. 1, 1998 ARP5088 Revision