The Caltech Archives
Welcome imageimageimage
Archives Catalog Entry

Scientific Apparatus
PH meter, model G

Serial number #15172. Glass electrode pH meter. National Technical Laboratories, So. Pasadena, CA. CIT Chem. ID #5391, with tag: "meter, pH direct reading". Complete with electrodes. In wood case-showing wear. Gift of Thomas Dunn, Chem. Division, electrical shop.
Manufacturer: National Technical Laboratories, 1940s.


ID: 1989-00044
Beckman, Arnold Orville (Chemist, Inventor, Philanthropist)

Creation Jan. 1, 1940

Topics: Chemistry

For information on using Archives materials for commercial or educational purposes (including reproducing PhotoNet images) please see Access and Use.

Return to Search the Archives

Search Help

Caltech