Acids in Oil

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Acids in Oil
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In Oil Condition Monitoring one specific value is very often visible:

The acid content, provided as neutralisation value or acid number.

Are acids in oil normal?
Why is there an acid number also on the datasheet of a new oil?
Why can you measure a base and acid numer in engine oils at the same time?
What is the ipH-value?

These daily questions for oil analysis specialists can be difficult to answer for laymen that have to handle and interpret oil analysis results only occasionally.

The answers to these questions are not as complicated as expected.
Find out more in our one hour Online-Training.


  • Acids in oil – why the Lackmus-Test does not work
  • Why monitoring the acid content?
  • Which test tells what?
  • How are the base and neutralisation number/the acid number (AN) and strong acid number (SAN) connected to the ipH-value
  • How to interpret chages to these numbers?

Preconditions for the OilDoc Online-Training

All you need is ...

  • a broadband internet connection.
  • a current Internet-Browser with a Flash Player.
  • a headset or speakers.
  • 1 hour of your precious time.


The Adobe Connect-App for your Tablet or Smartphone is free and available in the following stores:


Included in the price:

  • Participation in Online-Training
  • Recording of Online-Training
  • Presentation as PDF
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