How to calibrate pH meter?

[swhastan]

Randy,
In your article, http://www.advancedaquarist.com/issues/june2002/chem.htm the link "A pH calibration or verification fluid using grocery store borax" and "Calibration of pH meters" are not working. Could you give me information about them?

Thanks,
Sungwon

 

[Randy Holmes-Farley]

Here's a new one:

http://web.archive.org/web/20001102...twork.com/fish2/aqfm/2000/feb/bio/default.asp

 

[Randy Holmes-Farley]

These newer articles may also be useful:

Measuring pH with a Meter
http://www.advancedaquarist.com/issues/feb2004/chem.htm

A Comparison of pH Calibration Buffers
http://reefkeeping.com/issues/2005-02/rhf/index.htm