Resistivity of water

[Fernando Martins]

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Hello, I am a student from Brasil, and I'd like to know how to prepare 
a cell to measure the resistivity of water.
Can I use a glass cell with copper electrodes?
Best regards,
                      Fernando Martins

[Bruce comments
Fernanado
I'm sure there will be someone on the list who will provide a good general
introduction to  measuring the resistivity of water.

On sowacs, there is currently only information on measuring the EC of the
soil water solution.

For a discussion on unsaturated soil sampling, see the 
This is a compendium of replies on the feature page:
http://www.sowacs.com/feature/unsatsampling.html

To measure the conductivity of mud see :
http://www.sowacs.com/archives/99-11/msg00005.html

For a more detailed example of a sensor look at :
http://www.sowacs.com/feature/deltat/sigmaprobe.html
and the theory at
http://www.sowacs.com/feature/deltat/ec1theory.html

Bruce]