In reply to Ivan on the 1.6 uS = 1 PPM, I had gotten my conversion from Hanna Instruments. In their manual they say the ratio is from 1.4 to 2 uS/PPM, the latter being for CaCO2. From a phone discussion with their technical people a few years ago I was given the 1.6 conversion number for Colloidal Silver! The definition of PPM is by weight, of mg/liter so I assume some chemist on the list could make an accurate solution and then check the conductivity to check their conversion ratio. Incidentially, Hanna sells standard solutions of NaCl at 84 uS, which we use to verify our meters.
For those that wonder what strength they have made, we always offer free testing of PPM (TDS method). The preparation and mailing info is at our general health site at <http://www.health2us.com>. Yes, I said FREE testing! f...@health2us.com -- 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>
