The history of the conversion factor, Perhaps Trem should answer this one as he set the standard ...be it accurate or not.
My take Trem made batches of CS and sent them in for AA spectrograph analysis for total silver content, then compared the results to his PWT readings in microsiemens to come up with the 1.2x fudge factor...at around 20PPM for CS made the way he makes it. My experiences say that the TE will vary somewhat, so the fudge factor is only good within a range. I believe that setting an approximate range to get an idea was all that was intended, so it's a bendy standard but plenty good enough for all practical purposes. TE comes from particle content that meters don't read. Hanna says divide PWT microsiemens reading by 2 [more or less] to get PPM for dissolved solids..they know nothing about CS. Comparing a PPM meter to PWT meter in the same solution confirms the doubling well within reason. At 12:19 AM 8/20/2003 -0400, you wrote: >url: http://escribe.com/health/thesilverlist/m62084.html >Re: CS>Re: HVDC and higher ppm >From: Ode Coyote >Date: Tue, 19 Aug 2003 06:54:13 > >> A PPM meter reading should be doubled for silver ions. > >Hi Ken, > >Any idea where this factor comes from? I've been researching electrolyte >conductivity and came up with some data but nothing for Ag+ and OH-. > >For example: > > 1 PPM of: Approx. microsiemens/cm (20 C) > MgSO4 0.80 > MgCl2 1.70 > KNO3 1.10 > K2SO4 1.20 > KH2PO4 0.60 > K2HPO4 1.04 > NaCl 1.64 > (NH4)2SO4 1.50 > > http://www.ladyslipper.com/waterq.htm ## Theses are all dissolved solids right? I don't really know how straight single element ions of silver compare. > >In this table, cs would get a value of 0.5. This is kind of low, but I >found values that range from about 0.1 to 10 in the "Pure Water >Handbook": > >http://www.konetic.or.kr/attfile/greenCafe/knlgMaterials/62/osmonics.pdf >I'm curious how the conversion factor for cs was obtained. Was it >calculated or measured, or did everyone just agree on some value? ###Some of all of the above but not in that order? Measured, compared, calculated , then agreed upon as 'maybe so, maybe no'... but it's the best we gots that everbody can use without arguing about whos lab is right, by those who both have and don't have one. ..a benchmark in the park that anyone can sit on when they get tired of trying to figure out where they might otherwise be when it doesn't really matter much anyhow. WHEW! LOL Ode > >Best Regards, > >Mike Monett > > >-- >The silver-list is a moderated forum for discussion of colloidal silver. > >Instructions for unsubscribing may be found at: http://silverlist.org > >To post, address your message to: [email protected] > >Silver-list archive: http://escribe.com/health/thesilverlist/index.html > >List maintainer: Mike Devour <[email protected]> > >
