Re: Citation stating the maximum conductivity or resistivity of water

From: Robert Baer (robertbaer_at_earthlink.net)
Date: 01/13/05 

Date: Thu, 13 Jan 2005 08:28:01 GMT

Dieter Britz wrote:
>
> WayneL wrote:
> > Hi
> >
> > Over the past week the has been so excellent feedback(threads) on my
> > question of water conductivity.
> > In a few thread the value of 18.3MR (0.055uS) was mentioned, forgive me for
> > being pedantic but could somebody help by quoting a reference that cites
> > this figure (either in ohms, mhos or Siemens)?
>
> [reaches up to book shelf above desk, aha!]
> Yes: Aylward & Finlay, "SI Chemical Data", p. 125 in the 2nd Ed.,
> under Ionic Properties of Water. Note the SI units though, m, not cm.
>
> I suspect the CRC "rubber bible" would also have it, but I have
> only some rather old editions on the shelf.
> --
> Dieter Britz, Kemisk Institut, Aarhus Universitet, Danmark.

  Correct; the CRC is stating the *SI* units.
  BUT.
  In the trade, the commonly used terminology (like i said) is
*megohms*.