| AN (Acid Number) | |
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| for what lubricant type, for which unit |
allows a diagnose statement for |
| for all industrial lubricants and all bio-degradable oils, especially if the oil has already a long service life | Informs about the content of acid in the oil. Acid-reacting components are increased by oxidation, blow-by products or contamina-tion. Small change shows better oil. |
| Last modified: September 2010, © OELCHECK GmbH | Disclaimer Imprint |