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Digital Collections

Photographs

Beckman Model J pH Meter

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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
  • 8 in. W x 10 in. L
Subject
Rights In Copyright - Rights-holder(s) Unlocatable or Unidentifiable
Credit line
  • Courtesy of Science History Institute

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Department
Collection
Series arrangement
  • Series X. Photographic Materials
  • Sub-series 1. Image Files
Physical container
  • Box 55, Folder 87

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Cite as

“Beckman Model J PH Meter,” n.d. Beckman Historical Collection, Box 55, Folder 87. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/8c97kq45j.

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