> *** How would I know? Does PCB oil have a specific smell? Viscosity?
> Color? Actually, I would REALLY like to know, because I'd
> like to buy some
> transformer oil. There's a guy on Ebay who sells it reasonable, and
> CLAIMS it's recent no-PCB shell oil, but how to verify that?
>
> - Jerry Kaidor
I usually go by taste.
Seriously, the most-basic test is that PCB oils are heavier than water,
while mineral oil is lighter than water. A couple of drops of of the
subject oil in a cup of water would be a good basic test. However, if there
are a blend of oil types, obviously it may not yield accurate results. More
sophisticated (and accurate) methods include testing for the presence of
chlorine via a flame test or chemical process.
--- Jeff WN3A
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