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SAE ARP5991B
Test Method for the Determination of Water Concentration in Polyol Ester and Diester Aerospace Lubricants by Coulometric Karl Fischer Titration
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STANDARD published on 1.5.2024
The information about the standard:
Designation standards: SAE ARP5991B
Publication date standards: 1.5.2024
SKU: NS-1184873
Country: American technical standard
Category: Technical standards SAE
Annotation of standard text SAE ARP5991B :
The test method describes the procedure for the direct determination of water concentration in polyol ester and diester based aerospace lubricants by commercially available automated coulometric Karl Fischer titration instruments. The method was validated to cover the water concentration range of 150 to 3500 µg/g. The method may also be suitable for the determination of water concentrations outside this range and for other classes of fluids; however, the precision statement shall not be applicable for such uses.
SUBFILE: Aerospace
TYPE OF DOCUMENT: Aerospace Standard
Stabilized: May 2024 
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