pH meters

From: Sandy King ^lt;>
Date: 03/03/04-05:13:03 PM Z
Message-id: <a06020419bc6c169e80c7@[]>

There was some discussion on the list a while back re: the
reliability of pH meters.

Is there a common household substance that can be used to verify the
accuracy of readings of these meters, and/or calibrate them?

Sandy King
Received on Wed Mar 3 17:17:57 2004

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