Man with Beckman Research pH meter, H2 electrode, and Thermomatic
- 1960s
The edge of the paper used as a photo backdrop can be seen, taped to the bench on which the instruments sit.
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.
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Cite as
Hesketh, Dean D. “Man with Beckman Research PH Meter, H2 Electrode, and Thermomatic,” 1960–1969. Beckman Historical Collection, Box 86. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/05741s12b.
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