pH meter broken electrode?

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: Bryan Evans

: Posts: 583; Joined: Thu Feb 23, 2006 3:15 am

by Bryan Evans » Fri Jul 21, 2006 4:31 pm

Sorry - just wanted to clarify - you should us USP grade water
(not WFI) for lab testing. I believe USP <645> has specs for USP
water as well.

Bryan Evans
Imtakt USA
bevans@imtaktusa.com
www.imtaktusa.com

Add some ions!!

: gbalock

: Posts: 74; Joined: Fri Feb 10, 2006 3:54 pm

by gbalock » Fri Jul 21, 2006 6:31 pm

In my early years in the lab, the company I was working for was installing a water for injection system. Part of my responsibilities were to release the WFI on a daily basis before the morning's startup. To pH the water we added a few dros of saturated KCl before taking the pH. The meter woud rapidy go to the correct pH with no drift

George Balock

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