Thanks Ivan, Can you suggest something that doesn't cost a bundle that will do the trick? I think it is important for those, like myself, who are home brewing, to know the strength of the CS before using, lest we cause harm to others and ourselves.
Steve > ** Original Subject: RE: CS>re: Re: CS>Measuring particle concentration of > colloids > ** Original Sender: "Ivan Anderson" <[email protected]> > ** Original Date: Fri, 1 Jun 2001 03:43:21 -0400 (EDT) > ** Original Message follows... > > Unfortunately Steve, > > The TDS meter you describe is not very good for measuring the ppm content of > CS. Much better is a conductivity meter with a full scale reading of 99.9 > microseimens (uS). Using this one can be confident that the reading > approximates the ppm content of the colloid (+ or - about 15%). The TDS > meter you describe has a full scale measurement of 999 I am guessing, and > therefore an inherent error of + or - 20 ppm. Not only that, but as it > measures in ppm, it is a total dissolved solids meter and so has been > calibrated with a tds factor to read ppm as CaCO3, or a variety of salts > which can range from .5uS to 1ppm to (?). With this meter you are hard > pressed to know what you are measuring. > > Regards > Ivan. > > -----Original Message-----From: [email protected] [mailto:[email protected]] > Sent: Friday, 1 June 2001 08:26 > To: [email protected] > Subject: CS>re: Re: CS>Measuring particle concentration of colloids > > > Chip, > > I am not an expert like Frank, but have a thought to offer. There is a > generic PPM > tester that measures the particles in water. For example, my tap water > measured > 175 PPM. I asked my water company about that figure and he said it was > probably > OK, as there are a lot of particles in drinking water. I then measured some > distilled > water and it read 1 PPM. Subsequently, I measures some CS I had made, and > it > measured 11 PPM. That would indicate to me that the CS was 10 PPM, as there > was nothing else in the water before I began the CS making process. I asked > a tech > rep with the meter manufacturer and he said my presumption was on target. > > If you wish the URL for a place to buy one, email me at [email protected]. BTY, I > neither sell nor derive any income, from any source, from the sale of the > PPM test > meters. > > Hope this may be of help. > > Steve > > > > -- > The silver-list is a moderated forum for discussion of colloidal silver. > > To join or quit silver-list or silver-digest send an e-mail message to: > [email protected] -or- [email protected] > with the word subscribe or unsubscribe in the SUBJECT line. > > To post, address your message to: [email protected] > Silver-list archive: http://escribe.com/health/thesilverlist/index.html > List maintainer: Mike Devour <[email protected]> > >** --------- End Original Message ----------- ** >
