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Re: Help please (PCBs)



Hi Neil,
         One pretty definitive test for PCBs is the flame test. A 
droplet held in a flame on a piece of nichrome etc. will give a green
colour signalling the presence of chlorine.

Malcolm

 > Date forwarded: Wed, 23 Sep 1998 08:36:06 -0600
> Date sent:      Wed, 23 Sep 1998 07:22:06 -0600
> To:             tesla@pupman.com
> Subject:        Help please
> Forwarded by:   tesla@pupman.com
> From:           Tesla List <tesla@pupman.com>

> Original Poster: Neil Walker <ndwalker@tpgi.com.au> 
> 
> Hi from the 'tipodes,
>                      Recent posts suggest that P.C.B.s won't float on
> water.Is this a reasonably conclusive test ?
>                      A 1924 text which I'm reading speaks highly of zinc
> for multiple stationary s-gaps. Could anyone comment ( or direct me to
> previous posts ) ?
>                      I've been lurking in the wings for a while now, and
> enjoying every minute of it .Many thanks for a terrific exchange of
> information.
>                      Regards
>                             Neil Walker
> 
> 
>