Agreed on all counts. Hanna doesn't know diddly about CS
Where do you get $20 lab tests with an AA Spec? Ken At 01:14 PM 8/21/2003 -0700, you wrote: >Hi Ken, > >Yes, we had our CS analyzed using AA and compared the readings to PWT >readings to come up with the +20% correction factor. I think one has to >keep in mind that our CS always tested 85-86% ionic. A different >ionic/particulate ratio would require a minor correction factor change. But >after all, this isn't rocket science. As far as I'm concerned, the PWT is a >great tool for anyone making CS without automatic shutoff and/or current >limiting. One can monitor PPM as they go along. With auto shutoff it's not >as necessary but it's still a great tool for the person who wants to check >the product. It really beats doing lab tests at $20 a pop. > >The TDS meters read about one half because the calibration solution is >designed to let the meter read one half the ionic content. If you double >the reading it will usually come out about the same as the PWT readings >except it has no decimal. If you calibrate it with the 84uS solution it >will then read the same as the PWT and you won't have to double the reading. > >Hanna does not use the same correction factor but it doesn't do any good to >talk to them about it. We have our differences regarding how to use the >meters for measuring ionic silver. They say divide....I say add. > >I could be wrong but I'm not in doubt. > >Trem > >----- Original Message ----- >From: "Ode Coyote" <[email protected]> >To: <[email protected]> >Sent: Thursday, August 21, 2003 5:50 AM >Subject: Re: CS>Re: HVDC and higher ppm > > >> 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]> >> > >> > >> > >
