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Beckman Model H Glass Electrode pH Meter
Bulletin 170
- Circa 1950
Rights
Public DomainDownload all 4 images
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Small JPG1200 x 1530px — 370 KBFull-sized JPG2689 x 3428px — 2.5 MBOriginal fileTIFF — 2689 x 3428px — 26.4 MBPromotional, color pamphlet for the Model H 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. “Beckman Model H Glass Electrode PH Meter,” circa 1950. Beckman Historical Collection, Box 19, Folder 20. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/v118rf01w.
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