Search Results
-
Bureau of Chemistry Phytochemical Laboratory
- 1916 – before 1928
General view of an employee in the Bureau of Chemistry's Phytochemical Laboratory using a distillation apparatus to concentrate the odorous constituents of apples and peaches. Part of the U.S. Department of Agriculture,…
- Creator Of Work United States. Food and Drug Administration
- Subject Flavor, Employees, Laboratories, Food industry and trade--Safety regulations, Flavoring essences, Flavoring essences industry, Food industry and trade, United States. Bureau of Chemistry and Soils, Scientific apparatus and instruments
-
Bureau of Chemistry Water and Beverage Laboratory
- After 1901 – 1928
General view of an employee in the Bureau of Chemistry's Water and Beverage Laboratory conducting an analysis on an unidentified substance. Assorted sample jars and scientific apparatus are visible in the photograph.…
-
17 items
USDA Bureau of Chemistry Photograph Collection
This collection, digitized here in its entirety, consists of photographs depicting various laboratories believed to be associated with the USDA Bureau of Chemistry. The photographs provide a general overview of each…
-
Man operating Beckman GC-2A gas chromatograph with hydrogen flame detector attachment
- 1964
Beckman Instruments entered the gas chromatograph business in 1956 with the acquisition of the successful Watts Manufacturing Company. Later that year, Beckman Instruments produced its first gas chromatograph, the GC-1,…
-
Beckman GC-2A gas chromatograph with hydrogen flame detector
- 1964
Beckman Instruments entered the gas chromatograph business in 1956 with the acquisition of the successful Watts Manufacturing Company. Later that year, Beckman Instruments produced its first gas chromatograph, the GC-1,…
-
Beckman Model 777 oxygen analyzer
- Circa 1962
Developed from a Linus Pauling design during WWII, the technology behind Beckman Instruments’ oxygen analyzers ended up doing such diverse jobs as monitoring astronauts’ respiration, maintaining packaged food safety,…
- Photographer Hesketh, Dean D.
- Subject Scientific apparatus and instruments, Oxygen--Measurement, Oxygen--Analysis, Beckman Instruments, Inc.
-
Beckman Model E2 oxygen analyzer
- 1960s
Developed from a Linus Pauling design during WWII, the technology behind Beckman Instruments’ oxygen analyzers ended up doing such diverse jobs as monitoring astronauts’ respiration, maintaining packaged food safety,…
- Photographer Hesketh, Dean D.
- Subject Scientific apparatus and instruments, Oxygen--Measurement, Oxygen--Analysis, Beckman Instruments, Inc.
-
Beckman Model C2 Oxygen Analyzer
- 1960 – 1979
Developed from a Linus Pauling design during WWII, the technology behind Beckman Instruments’ oxygen analyzers ended up doing such diverse jobs as monitoring astronauts’ respiration, maintaining packaged food safety,…
- Photographer Armstrong & Hess
- Subject Scientific apparatus and instruments, Oxygen--Measurement, Oxygen--Analysis, Beckman Instruments, Inc.
-
Beckman Model D2 oxygen analyzer with cord and bulb
- 1950s
Developed from a Linus Pauling design during WWII, the technology behind Beckman Instruments’ oxygen analyzers ended up doing such diverse jobs as monitoring astronauts’ respiration, maintaining packaged food safety,…
- Photographer Hesketh, Dean D.
- Subject Scientific apparatus and instruments, Oxygen--Measurement, Oxygen--Analysis, Beckman Instruments, Inc.
-
Beckman Model D2 oxygen analyzer
- 1950s
Developed from a Linus Pauling design during WWII, the technology behind Beckman Instruments’ oxygen analyzers ended up doing such diverse jobs as monitoring astronauts’ respiration, maintaining packaged food safety,…
- Photographer Armstrong & Hess
- Subject Scientific apparatus and instruments, Oxygen--Measurement, Oxygen--Analysis, Beckman Instruments, Inc.
-
Beckman Model D Industrial Oxygen Analyzer
- 1950s
Developed from a Linus Pauling design during WWII, the technology behind Beckman Instruments’ oxygen analyzers ended up doing such diverse jobs as monitoring astronauts’ respiration, maintaining packaged food safety,…
- Photographer Hesketh, Dean D.
- Subject Scientific apparatus and instruments, Oxygen--Measurement, Oxygen--Analysis, Beckman Instruments, Inc.
-
Beckman Research pH meter with Micro Blood pH Assembly and Thermomatic
- 1950 – 1969
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…
-
Beckman Research pH meter dial, close up
- 1950 – 1969
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…
-
Man with Beckman Research pH meter, H2 electrode, and Thermomatic
- 1960s
The edge of the paper used as a photo backdrop can be seen, taped to the bench on which the instruments sit.
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus…
-
Beckman Research pH meter, interior view
- 1960s
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…
-
Beckman Model G pH meter with external electrode assembly
- Undated
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 “acidimeter” with its…
-
Beckman H2 Electrode Cell Assembly mounted in Thermomatic Constant Temperature Block
- 1960s
The Thermomatic was used in cases where sample temperature was important, such as in the measurement of blood pH.
-
Beckman Model G pH meter, top shot of panel
- Undated
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 “acidimeter” with its…
-
Beckman Model G pH meter, interior shot from above
- Undated
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 “acidimeter” with its…
-
Various models of Beckman pH meters
- 1960s
This group photograph appears to include Models G, N, N2, 72, and Pocket pH meters.
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an…
-
Beckman Type 945 Lead Terminator
- 1968
This instrument was designed to be incorporated into electroencephalograph units and included an impedance meter. An electroencephalogram test detects electrical impulses in the brain via electrodes attached to the…
-
Beckman Gas Chromatograph Model GC-2A
- 1964
Beckman Instruments entered the gas chromatograph business in 1956 with the acquisition of the successful Watts Manufacturing Company. Later that year, Beckman Instruments produced its first gas chromatograph, the GC-1,…
-
Beckman Model BCM-400 Blood Chemistry Monitor
- Circa 1970
The instrument monitors pH, partial pressure of carbon dioxide, partial pressure of oxygen, and temperature. It sits before what appears to be a paper backdrop taped in place.
-
Beckman DSA 560E Discrete Sample Analyzer
- Circa 1968
The DSA-560 Discrete Sample Analyzer, introduced in 1968, was Beckman's first clinical chemistry analyzer. It was capable of processing 100 samples per hour and used in the analysis of blood serum, urine, and drinking…
-
Beckman Model N2 pH meter with solutions
- Undated
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…