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

Digital Collections

Records (Documents)

The Development of pH Instrumentation

  • 1950-Apr

Rights

Public Domain

Download all 18 images

PDFZIPof full-sized JPGs

Download selected image

Small JPG1200 x 1535px — 260 KBFull-sized JPG2742 x 3507px — 1.2 MBOriginal fileTIFF — 2742 x 3507px — 27.6 MB
View
Public
Domain
PDF
Download PDF
ZIP
of full-sized JPGs
Download ZIP

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
Author
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 3. Product Files
  • Series II. Business Activities Files
Physical container
  • Box 19, Folder 20

View in library catalog

Learn More

Scientific Biography
Arnold O. Beckman

Related Items

Cite as

Beckman, Arnold O. “The Development of PH Instrumentation,” April 1950. Beckman Historical Collection, Box 19, Folder 20. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/z029p529v.

  Export citation (RIS) ?

This citation is automatically generated and may contain errors.

Rights

Public Domain

Download selected image

Small JPG1200 x 1565px — 354 KBFull-sized JPG2686 x 3502px — 1.3 MBOriginal fileTIFF — 2686 x 3502px — 27.0 MB

Rights

Public Domain

Download selected image

Small JPG1200 x 1547px — 290 KBFull-sized JPG2707 x 3490px — 1.1 MBOriginal fileTIFF — 2707 x 3490px — 27.1 MB

Rights

Public Domain

Download selected image

Small JPG1200 x 1548px — 388 KBFull-sized JPG2706 x 3490px — 1.3 MBOriginal fileTIFF — 2706 x 3490px — 27.1 MB

Rights

Public Domain

Download selected image

Small JPG1200 x 1554px — 354 KBFull-sized JPG2695 x 3490px — 1.4 MBOriginal fileTIFF — 2695 x 3490px — 27.0 MB

Rights

Public Domain

Download selected image

Small JPG1200 x 1551px — 367 KBFull-sized JPG2700 x 3490px — 1.4 MBOriginal fileTIFF — 2700 x 3490px — 27.0 MB

Rights

Public Domain

Download selected image

Small JPG1200 x 1554px — 354 KBFull-sized JPG2695 x 3490px — 1.3 MBOriginal fileTIFF — 2695 x 3490px — 27.0 MB

Rights

Public Domain

Download selected image

Small JPG1200 x 1558px — 373 KBFull-sized JPG2688 x 3490px — 1.3 MBOriginal fileTIFF — 2688 x 3490px — 26.9 MB

Rights

Public Domain

Download selected image

Small JPG1200 x 1553px — 395 KBFull-sized JPG2709 x 3507px — 1.5 MBOriginal fileTIFF — 2709 x 3507px — 27.2 MB

Rights

Public Domain

Download selected image

Small JPG1200 x 1559px — 428 KBFull-sized JPG2700 x 3507px — 1.5 MBOriginal fileTIFF — 2700 x 3507px — 27.2 MB

Rights

Public Domain

Download selected image

Small JPG1200 x 1553px — 334 KBFull-sized JPG2723 x 3524px — 1.3 MBOriginal fileTIFF — 2723 x 3524px — 27.5 MB

Rights

Public Domain

Download selected image

Small JPG1200 x 1563px — 352 KBFull-sized JPG2706 x 3524px — 1.4 MBOriginal fileTIFF — 2706 x 3524px — 27.3 MB

Rights

Public Domain

Download selected image

Small JPG1200 x 1547px — 321 KBFull-sized JPG2721 x 3507px — 1.4 MBOriginal fileTIFF — 2721 x 3507px — 27.4 MB

Rights

Public Domain

Download selected image

Small JPG1200 x 1561px — 370 KBFull-sized JPG2696 x 3507px — 1.4 MBOriginal fileTIFF — 2696 x 3507px — 27.1 MB

Rights

Public Domain

Download selected image

Small JPG1200 x 1545px — 333 KBFull-sized JPG2698 x 3473px — 1.2 MBOriginal fileTIFF — 2698 x 3473px — 26.9 MB

Rights

Public Domain

Download selected image

Small JPG1200 x 1547px — 389 KBFull-sized JPG2694 x 3473px — 1.3 MBOriginal fileTIFF — 2694 x 3473px — 26.8 MB

Rights

Public Domain

Download selected image

Small JPG1200 x 1547px — 423 KBFull-sized JPG2702 x 3483px — 1.5 MBOriginal fileTIFF — 2702 x 3483px — 27.0 MB

Rights

Public Domain

Download selected image

Small JPG1200 x 1554px — 354 KBFull-sized JPG2689 x 3483px — 1.2 MBOriginal fileTIFF — 2689 x 3483px — 26.9 MB

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.