Spectrophotometer
date: label: date made
content: 1940s
name: label: maker
content: National Technical Laboratories
notes: label: Description
content: Arnold O. Beckman, a professor of chemistry at the California Institute of Technology, established National Technical Laboratories in Pasadena, Ca., in 1935. That firm introduced the DU spectrophotometer in 1941. Using quartz rather than ordinary glass, this instrument extended observations into the near ultra-violet. The form remained on the market until 1976, with thousands of examples sold.
label: Description
content: This early example came from Beckman Instruments. The inscription on an oval tag reads “BECKMAN / MODEL DU SERIAL 2960 QUARTZ SPECTROPHOTOMETER / NATIONAL TECHNICAL LABORATORIES SOUTH PASADENA, CALIFORNIA, U.S.A.”
label: Location
content: Currently not on view
place: label: place made
content: United States: California, Pasadena
setName: label: See more items in
content: Medicine and Science: Chemistry
creditLine: label: Credit Line
content: Gift of Beckman Instruments
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1981.0816.1
label: catalog number
content: 1981.0816.1
label: accession number
content: 1981.0816
objectType: label: Object Name
content: Spectrophotometer
label: Object Name
content: spectrophotometer
physicalDescription: label: Measurements
content: overall: 22 cm x 81 cm x 28 cm; 8 11/16 in x 31 7/8 in x 11 in
label: Measurements
content: overall: 8 13/16 in x 31 15/16 in x 10 1/4 in; 22.38375 cm x 81.12125 cm x 26.035 cm