Reply to "Hydraulic oil blackening"

greglivingstoneMember

Dear Tapa,

A lab will typically report an "oxidation" or "nitration" value. I prefer to look at the entire graphical overlay. An example of a portion of the graphical overlay that is attached. (If the file doesn't appear, I'll e-mail it to you.) Micro-dieseling, a kind of thermal degradtion, produces molecular by-products that fit in the nitration range.

I hope this helps.

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8/3/049:23 AM

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</div>
<script type="text/javascript">
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