Beckman pH Meter - Pasadena, CA
Posted by: Groundspeak Premium Member bluesnote
N 34° 08.351 W 118° 07.591
11S E 396135 N 3778162
A historical marker on the Caltech campus.
Waymark Code: WM13TX5
Location: California, United States
Date Posted: 02/19/2021
Published By:Groundspeak Premium Member Alfouine
Views: 0

The plaque says, "Arnold O. Beckman developed the first commercially successful electronic pH meter while a member of the faculty of the California Institute of Technology. This rugged and portable “acidimeter,” which had all necessary components housed in a single unit, allowed scientists to measure acidity accurately and rapidly. It immediately met an important need of the California citrus industry: how to measure the pH of lemon juice. The innovative features of the pH meter, including an early use of integrated electronic technology, were the basis for subsequent modern instrumentation developed by Beckman and Beckman Instruments."
Group that erected the marker: American Chemical Society

Address of where the marker is located. Approximate if necessary:
Pasadena, CA, USA


URL of a web site with more information about the history mentioned on the sign: Not listed

Visit Instructions:
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bluesnote visited Beckman pH Meter - Pasadena, CA 02/19/2021 bluesnote visited it