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Pentane and Toluene Insolubles

Method
Standards

What is it used for?

The presence of pentane insolubles loosely shows the degree of sludgy residue formed by the oxidative degradation of lubricants, wear debris, soot from fuel combustion, and other ingress particles entering a lubricated system.

 

Toluene insoluble materials typically originate from external contamination, degradation of fuels and oils (and their additives), or wear debris and corrosion products.

 

How does it work?

In short, the insolubles are separated from the lubricant itself and gravimetrically measured.

 

What do the results tell us?

Results give an indication of the lubricant’s ability for form resinous matter, or to determine the presence of debris and soot that may lead to additional machine issues.

 

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