pH
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Small JPG1200 x 1536px — 435 KBFull-sized JPG2638 x 3377px — 2.0 MBOriginal fileTIFF — 2638 x 3377px — 25.6 MBThis mailer, sent to Beckman shareholders, was a reprint from a company publication and explained the significance of the pH meter.
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
Beckman Instruments, Inc. “PH,” n.d. Beckman Historical Collection, Box 18, Folder 27. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/6d56zx17z.
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