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Reply to "trend analysis"

Lubricant analysis depends on both physical and wear metal / contaminants analysis.

Decision on physical parameters is more on spot values where as wear metal / contaminants is on trend. For eg. if BN goes below more than 60% of the original value then action has to be taken immediately. Whereas if Fe or Al content has increased in a report, we cannot infer anything. We will have to wait for the next report and then decide.
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