James wrote: > Thanks for the information.
You're welcome! > Do you know where I can get any information correlating conductance > and PPM in order to use a TDS meter to determine concentration? > What is the approximate % error using the method? We still have to create it, James! The basic strategy is to make some CS and have it tested for ppm at a local environmental lab or one of the vendors like CS Pro. Adjust your process until you get to the ppm you want to use, retesting as you go until you're satisfied. You will now have an approximate calibration curve for *your* CS, the way you make it, over a narrow range of adjustment. Then you can at least assure yourself of repeatable results from one batch to the next, which is about the best use of the TDS meters. I wouldn't expect to really know the ppm to better than +/- 20% by way of *any* method that you or I could afford to use! All of this is IMHO, of course! 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>
