[Boatanchors] Regarding PCB's

[hwhall at compuserve.com]

There's a specific gravity test that I found online.  I am assuming that the oils were uniform & not blends, though.
Quotes from "United Nations Environment Programme, PCB Transformers and Capacitors from Management, to Reclassification and Disposal, First Issue, May, 2002"
"The specific gravity of chlorinated organic liquids is much higher than that of a hydrocarbon: in the region of 1.5, whereas oil is less than 1.0."
"A simple field-test is to add a few drops of the coolant into a test tube or flask filled with water. A PCB based coolant will rapidly sink to the bottom whilst a conventional oil or silicone will float on top of the water."
WayneWB4OGM

-----Original Message-----
From: Richard Knoppow <1oldlens1 at ix.netcom.com>
To: boatanchors at mailman.qth.net
Sent: Mon, Dec 14, 2020 12:47 pm
Subject: Re: [Boatanchors] Regarding PCB's

    How did you determine what the oil was?  Various brands of 
transformer/capacitor oil were used, I think all the same stuff. 
I am not sure if its possible to tell them from mineral oil 
without some sort of chemical analysis.

On 12/14/2020 11:26 AM, hwhall at compuserve.com wrote:
> So far, all the bathtub caps I've gutted & restuffed, & thought might have been PCB-filled, turned out to be just ordinary mineral oil.
>
>

-- 
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL

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