Ivan,

Thanks for the excellent reference paper on this.  I feel it supports my
suggestion of the use of a standardized laser pointer for the home brewer to
insure their production of  high quality CS.  This should finally clear away
the contention of some that only particles close in size to the wavelength
of the pointer ( 650nm ) could be seen.  If the solution is clear and  you
can see the laser beam, you are making good CS.  The more pronounced the
beam, the higher the PPM of particles.

Best Regards,
Arnold Beland

----- Original Message -----
From: "Ivan Anderson" <i...@win.co.nz>
To: "*Silver-List*" <silver-list@eskimo.com>
Sent: Friday, August 30, 2002 7:11 AM
Subject: CS>Light-Scattering


>
> An in depth investigation of light scattering, absorption and
> transmission, in gold and silver sols. Has some colour photographs of
> silver sols.
> Warning: scientific and technical...just ignore the math, perhaps
> start at page 13.
>
> http://www.geniconsciences.com/root/files/1293.pdf
>
> Ivan
>
>
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