I seriously doubt putting the whole kit and kaboodle on a scale would be 
anywhere near accurate enough.  
 
Get a set of scales that read down to 0.something of a gram, or carat and weigh 
the electrode itself.  I got a set of these scales years ago to do exactly what 
you're talking about, but never got round to doing it, the more I read and 
learnt over time the less keen I got on the idea.
 
If one were to weigh the electrode *itself* before, then after production, that 
may give some idea, but I'm still not too sure how accurate it would be in the 
scheme of things, which is another reason I haven't bothered doing it yet.
 
N.
 
> Date: Wed, 24 Feb 2010 11:26:38 +0900
> Subject: Re: CS>Which layer of skin for silver deposit?
> From: [email protected]
> To: [email protected]
> 
> I've been wondering about this for quite some time, having read on this 
> list that ppm is really a measure of weight, not "parts" or 
> "particles." I'll add a layman's question: is there any scale on 
> earth that could measure the difference in weight just by putting one's 
> EIS jar on the scale before and after making the EIS? The precision 
> would have to be astoundingly high. At those levels, maybe even the 
> researcher's breathing would throw the results off. Still, I wonder.
> 
> 
> 
> 
> 
> 
> 
> 
> On Wednesday, Feb 24, 2010, at 01:58 Asia/Tokyo, Marshall Dudley wrote:
> 
> > Doing quantitative analysis for silver compounds is really rather 
> > easy, if you have much silver present. The biggest problem is that at 
> > 5-20 ppm, the quantities are so small, that getting a good weight on 
> > them is difficult. It can be done though with a good balance, forget 
> > a postage scale. 
> 
> 
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