[Boatanchors] Regarding PCB's

[Richard Knoppow]

    Thank you, I had not known about this. Its useful to know.

On 12/14/2020 12:07 PM, hwhall at compuserve.com wrote:
> 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."
>
> Wayne
> WB4OGM
>
> -----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 
> <mailto: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 <mailto:1oldlens1 at ix.netcom.com>
> WB6KBL
>
>
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-- 
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL