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Digital Collections

Photographs

Beckman Micropore Combination pH Electrode

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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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Extent
  • 5 in. W x 4 in. L
Subject
Rights In Copyright - Rights-holder(s) Unlocatable or Unidentifiable
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  • Courtesy of Science History Institute

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Department
Collection
Series arrangement
  • Series X. Photographic Materials
  • Sub-series 3. Photo Albums
Physical container
  • Box 84

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Cite as

“Beckman Micropore Combination PH Electrode,” n.d. Beckman Historical Collection, Box 84. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/xw42n814p.

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