The test method describes the procedure for the direct determination of water concentration in polyol ester and diester based aerospace lubricants by the commercially available automated coulometric Karl Fischer titration instrument. 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. ARP5991 has been reaffirmed to comply with the SAE five-year review policy.


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    Title :

    Test Method for the Determination of Water Concentration in Polyol Ester and Diester Aerospace Lubricants by Coulometric Karl Fischer Titration


    Publication date :

    2016-09-12



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English