Advertisement about using various models of Beckman pH meters for monitoring water quality in industrial settings.
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an accurate way to measure the acidity of his product. The resulting instrument kicked off rapid development not only of Beckman Instruments, Inc. but also of the electronic scientific instrument industry.
|Creator of work
Beckman Instruments, Inc. “Wherever There's Water, There's PH...,” n.d. Beckman Historical Collection, Box 18, Folder 27. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/v692t621m.
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