I think you mean don't bother with a PWT meter. Dan
On Thu, Jan 12, 2012 at 2:40 PM, D Glover <[email protected]> wrote: > Asif, don't waste your time with uS meters except for testing the purity of > your water, as they were only designed for that purpose, and nothing > more, they cannot in any way measure ionic content of silver sol or be used > to infer any value for ppm of silver ions in a sol through extrapolation by > some mathematical means. No matter how you play with maths you will not get > a proper answer. Rather, standardize your method of manufacture (for some > tips please see my essay on the manufacture of silver sols at Mothman777's > Blog') > Make some 20 ml specimens and submit those to a professional lab (university > labs are cheapest), they will dissolve all the clusters of ions into single > ions with the addition of nitric acid, then a fine vapour of this is > aspirated under pressure into an argon plasma flame at a high temperature > and the colour of the spectrum will tell you accurately what you have made, > but bear in mind that 10 ppm might all be in a small number of a few > thousand clusters (for example) or might be in trillions of clusters. > > On Thu, Jan 12, 2012 at 9:47 AM, Asif Nathekar <[email protected]> > wrote: >> >> Hi, >> >> I have been doing some more reading which has got me looking for a >> resolution, namely what uS do you consider to roughly figure out the PPM. >> I know the reason why a typical ppm or uS meter would not give a reading >> due to the ions which we do want to measure not being very measurable in >> terms in electrical conductance. >> But it there a rough method to measure from the stuff that does conduct. >> What I am therefore asking is if my uS meter says 10 uS what ppm of CS >> should I consider that to be. >> I have so far been halving the value so that I would have said that was 5 >> ppm. This was from information I received from other posts. >> Kindly help shed some light in this matter for me. >> Cheers >> Peace to all >> Asif. >> >> >> >> -- >> The Silver List is a moderated forum for discussing Colloidal Silver. >> Rules and Instructions: http://www.silverlist.org >> >> Unsubscribe: >> <mailto:[email protected]?subjectunsubscribe> >> Archives: >> http://www.mail-archive.com/[email protected]/maillist.html >> >> Off-Topic discussions: <mailto:[email protected]> >> List Owner: Mike Devour <mailto:[email protected]> >> >> >
