About Magazine Podcasts Events
Museum Hours:Wednesday–Saturday, 10AM–5PM

Digital Collections

Advertisements

New! Inexpensive continuous pH measurements with the Beckman glass electrode equipment!

  • Bulletin No. 17

  • 1935 – 1940

Rights

Public Domain

Download selected image

PDFSmall JPG1200 x 1540px — 389 KBFull-sized JPG2651 x 3403px — 1.8 MBOriginal fileTIFF — 2651 x 3403px — 25.9 MB
View
Public
Domain
Searchable PDF
may contain errors
Download PDF

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.

Property Value
Creator of work
Place of creation
Format
Genre
Extent
  • 8.5 in. W x 11 in. L
Language
Subject
Rights Public Domain Mark 1.0
Credit line
  • Courtesy of Science History Institute

Institutional location

Department
Collection
Series arrangement
  • Sub-series 4. Subject Files
  • Series II. Business Activities Files
Physical container
  • Box 20, Folder 2

View in library catalog

Related Items

Cite as

Beckman Instruments, Inc. “New! Inexpensive Continuous PH Measurements with the Beckman Glass Electrode Equipment!,” 1935–1940. Beckman Historical Collection, Box 20, Folder 2. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/1g05fc36k.

  Export citation (RIS) ?

This citation is automatically generated and may contain errors.

The Science History Institute recognizes there are materials in our collections that may be offensive or harmful, containing racist, sexist, Eurocentric, ableist, or homophobic language or depictions. The history of science is not exempt from beliefs or practices harmful to traditionally marginalized groups. The Institute is engaged in ongoing efforts to responsibly present and address the evidence of oppression and injustice inextricable from the history of science. If you would like to learn more about our ongoing efforts or if you encounter harmful, inaccurate, or insufficient descriptions, please contact us at digital@sciencehistory.org.