[Elecraft] easy source of static dissipating work mat?

[Don Ehrlich]

That sounds about right to me.  Remember, the general meaning of pink and 
black (at least back when I was actually an engineer) was that black plastic 
bags, foam, etc indicated "static dissipating" ... the material was actually 
slightly conductive.  Anything pink in color was defined as "non-static" ... 
meaning that the material would not contribute electrons or ions to the 
environment that would cause static voltage buildup.  Pink material was 
usually non-conductive but was allowed in static sensitive environments.

Don K7FJ


----- Original Message ----- 
From: "David Woolley (E.L)" <forums at david-woolley.me.uk>
To: <elecraft at mailman.qth.net>
Sent: Saturday, December 13, 2008 08:40
Subject: Re: [Elecraft] easy source of static dissipating work mat?


> David Woolley wrote:
>
>>
>> I believe the silvered ones do work like mats.
>>
> As people seem to be under the impression that metalised bags are highly 
> conductive, I measured one, and it comes out to be about 4 MOhm/square, 
> which is not very conductive by my standards.  In fact, within the 
> measurement tolerances, my anti-static mat has the same surface 
> resistivity!
>
> I may be wrong about the pink ones though.  They had about 4 times the 
> resistivity, but still on scale.
>
>
> -- 
> David Woolley
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