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Lube Oil TAN / Water - Condition Check

Contents

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Condition monitoring pass/fail for Total Acid Number (TAN) and water content against typical marine system-oil limits.

Formula

$$ TAN \leq 3.0, \quad \text{water} \leq 0.2\% $$

Symbol legend

SymbolMeaningUnitSource
$TAN$Total Acid Numbermg KOH/gASTM D664
$Water$Free + emulsified water% v/vISO 3733 / Karl-Fischer

Sources

  • CIMAC WG8 Lubrication Guidelines.