File:Beckman Digital pH Meter - DPLA - 738d4367109dc3029cbf7ee4f73dda7b (page 11).jpg
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[edit]Beckman Digital pH Meter ( ) | |||||||||||||||||||||
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Creator InfoField | Beckman Instruments, Inc | ||||||||||||||||||||
Title |
Beckman Digital pH Meter |
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Description |
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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Date | 1969-Jun | ||||||||||||||||||||
Collection |
institution QS:P195,Q5090408 |
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Source/Photographer |
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Permission (Reusing this file) |
Copyright determination made by Science History Institute ( Q5090408) using RightsStatements.org
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 22:44, 5 January 2023 | 2,739 × 3,519 (1.02 MB) | DPLA bot (talk | contribs) | Uploading DPLA ID dpla:738d4367109dc3029cbf7ee4f73dda7b |
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Orientation | Normal |
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Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |