But the question is, is it the same as making 5 ppm EIS.  We know that
as the ppm goes up the colloidal particle size goes up, and if you
dilute, the particle size does not change.  My guess is that if you do a
straight dilution, what you end up with is not as good as if you make it
5 ppm to start with, but if you add some H2O2, which will break the
particles down, it will be no different. However there is no
experimental evidence I know of that supports or refutes this notion.

Marshall

Robert Berger wrote:

> Absolutely !!!  Take one unit of 10 PPM EIS and add one unit of DW and
> you have 5 PPM EIS. "Ole Bob"
>
> aKa Jhon <[email protected]> wrote:
>
>      can you dilute 10% C/S to make 3-5%???
>
>
>