Steve, Do you mean 3ppm TDS or 3uS.
It really depends upon what the impurities are. If they are cations such as copper sodium calcium potassium etc then they will not complex with silver and will add to the reading. If some are anions such as carbonate, carbon dioxide (HCO), nitrate, chloride etc then the silver ions may combine to form insoluble salts. I should say that the latter is less likely (forming compounds) and would assume that 3uS of your reading is due to the water impurities and should be accounted for. I must say that even my dw that has been around for months still reads 1uS. Regards - Ivan ----- Original Message ----- From: Steve King <ssk...@nildram.co.uk> To: <silver-list@eskimo.com> Sent: Tuesday, 26 October 1999 00:15 Subject: Re: CS>ppm standard - 1.74PPM/uS > Ivan- > > >As Ag+ > >5ppm 1.76 2.8uS > >10ppm 1.76 5.7uS > >15ppm 1.77 8.5uS > >20ppm 1.77 11.3uS > >25ppm 1.78 14.0uS > >50ppm 1.79 27.9uS > > I've got a Hanna PWT (0-100uS) meter > and I'm very interested in > these figures. How do I take > into account the initial TDS of the > batch water. say for instance I > start with water that has a TDS of > 3ppm and then after my run I measure > 11.3uS? Do I subract the 3 from > 20ppm? > > Many thanx, > > Steve King -- 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>
