I'm testing three samples of CS over a longer period of time to get some idea of what's going on and also to evaluate the ppm meter...
I made a batch of CS on January 22. I had two samples from different portions of it tested. I also measured it when I first got the ppm meter, and again today. Here are the results: Note: EQL = Environmental Quality Labs, Inc, Sterling Heights, MI TDS = TDS-1 Total Dissolved Solids meter from Hanna Instruments. Batch #1, sample A, made 1/22/98 date ppm method 02/03/98 26 ppm EQL 02/19/98 17 ppm TDS 03/07/98 15 ppm TDS Batch #1, sample B, made 1/22/98 date ppm method 02/03/98 22 ppm EQL 02/19/98 14 ppm TDS 03/07/98 12 ppm TDS I made another batch of CS using the same recipe on February 5th. It measured 21 ppm on the TDS-1 meter both on February 19th and today: Batch #2, made 2/5/98 date ppm method 02/19/98 21 ppm TDS 03/07/98 21 ppm TDS So the first batch seems to be decaying, somehow, while the second batch is holding steady. I can think of two reasons this is happening. The second batch might have been filtered a little better. I pushed most of it through the same filter I used to filter the entire first batch, which showed signs of starting to clog. I filtered the last little bit through another fresh filter. The other reason might be the way in which I made my starter. The protocol involves making a quart of "starter" that I divide up, 8 ounces into each of 4 quart canning jars. The first batch, I made the starter from "scratch", starting with just water and running almost an hour and a half. For the second batch, I "started the starter" with 8 ounces of CS from another batch, which shortened the run time to about 45 minutes. If one method produces a wider distribution of particle sizes, then the first batch may have some bigger particles that are settling out over time, while the second batch might be "cleaner." I think I will submit a sample from each of the two batches to the testing lab again and take meter readings before and after to bracket the lab tests. I really want to see if the calibrations are the same between the meter and the lab test. If so, we're *really* in business! That's it for now! Mike D. [Mike Devour, Citizen, Patriot, Libertarian] [mdev...@mail.id.net ] [Speaking only for myself... ] -- 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: silver-list-requ...@eskimo.com -or- silver-digest-requ...@eskimo.com with the word subscribe or unsubscribe in the subject: line. To post, address your message to: silver-list@eskimo.com List maintainer: Mike Devour <mdev...@id.net>
