![]() ![]() ![]() Thus, using proper measurement methods and determining the individual limit of solubility for water are important preconditions to implement modern maintenance strategies.įree water accelerates oil degradation due to hydrolysis of ester-based fluids or the reaction of additives like zinc dialkyldithiophosphate(ZDDP) and calcium sulfonate. Without knowledge of the respective limit of solubility (saturation) of the fluid in use, it is not possible to interpret the results from the Karl Fischer method. However, water only causes damage if it is free. The result is the sum of free and dissolved water. In the laboratory, this value is usually measured by the Karl Fischer method. Sensitive applications and components are often classified according to their tolerable limit of water content in milligrams/kilograms (mg/kg) or parts per million (ppm). In order to ensure the required plant availability, it is necessary to regularly check the degree of contamination due to solid particles and to monitor the water content in non-aqueous lubricants. ![]()
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