I have heard that devices that simply test conductivity, which I am guessing these devices do, are not of much value determining PPM as there are many variables which determine conductivity of a liquid - i.e. temperature, impurities in the water, etc.
Thoughts? -----Original Message----- From: Brian McInturff [mailto:[email protected]] Sent: Wednesday, December 16, 1998 6:24 AM To: [email protected] Subject: Re: CS>More newbie questions! > HI! Thanks for the URL. In selecting the meter to use, what is the range > that I will need to measure from 1ppm to lets say 250ppm? I went to the > website and was rather confused about which model to select. The pocket ones > look nice, but price is more of a consideration than is size... The TDS-1 measures up to 1000ppm (I think). This is not the ideal range for purposes of measuring CS ppm (we'd rather have 1 to 250 range to potentially have better accuracy in the 10-30ppm range), but for the money it can't be beat. On a related question, someone mentioned that although this may measure a proportional gauge to ppm for CS, it was not accurate. Why not? Since silver ions would not register but silver oxide would? turf -- 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] List maintainer: Mike Devour <[email protected]> -- 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] List maintainer: Mike Devour <[email protected]>
