I've only used an indicator for acid-base titrations but I heard that some people use a pH meter instead.
22.
Arnold Beckman ( PhD 1928 ) invented the pH meter and commercialized it with the founding of Beckman Instruments.
23.
In its first full year of sales, 1936, the company sold 444 pH meters for $ 60, 000 in sales.
24.
Therefore, most wineries will us a pH meter that can give readings to an accuracy of plus or minus 0.1.
25.
The original pH meter weighed in at nearly 7 kg, but was a substantial improvement over a benchful of delicate equipment.
26.
The A, B, and C prototype models all coupled an external Beckman pH meter to the optical component to obtain readouts.
27.
The Senova pHit Scanner based on Compton group patents-the world s first calibration-free pH meter-won the'best new product'award at PITTCON March 2013.
28.
Other products to be showcased by SiberHeger are titrators, pH meters, Heraeus centrifuges and Lindberg Blue M ( General Signal ) ovens.
29.
John T . Frye's fictional characters, Carl and Jerry, use a PH meter to locate the source of pollution in a river.
30.
If you need anything accurate a pH meter is the way to go .-- Esperanza 13 : 33, 23 October 2005 ( UTC)
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