I think I did say 'approximately'.  dee

On 25 Sep 2009, at 01:50, Neville Munn wrote:

[80% ionic and 20% colloidal.]
-That must be dependant on the equipment, environmental conditions, procedures/methods/practices adopted for producing EIS ultimately. I would say ion/particle ratios are unique to the aforesaid criteria, and I haven't read how soon laboratory analysis was conducted after cessation of production...immediately? a day later? a month later? (which would be preferable)

Ion/particle ratios can be debated til the cows come home but that debate takes on a whole knew meaning when you're holding lab results in your hand, in tandem with a better understanding of particle sizing.

Everything else is as you say.

N.