Search Results
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2 items
Seven New Beckman Rotors for Preparative Ultracentrifuges
- 1981-Jun-02
The press release discusses rotors for the L8-80, L8-70, and L8-55 ultracentrifuges.
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3 items
Beckman's Large Bore Cell is Suitable for Shallow Effluent Streams
- 1981-Jun-01
The press release describes the specifications of the Type CEL-VDT( ) Y15 expoxy conductivity cells.
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2 items
Beckman Offers Glass Flow Through Cells for Conductivity Measurements
- 1981-May-15
The press release announces the specifications for Type CEL-D and Type CEL-JD Conductivity Cells.
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4 items
Beckman Introduces Two Bench-Top Digital Multimeters for Electronic Engineers, Technicians and Hobbyists
- 1981-May-05
The press release announces two multimeters, the Tech 350 and Tech 360, and includes specifications and pricing information.
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2 items
Sterimatic: Introduction to Sales Manual and Service Digest
- 1940-Dec-04
The document and an accompanying manual were intended to prepare sales staff to answer customer questions and perform other job functions. The Sterimatic was a device which automatically dispensed a pH-controlled…
- Creator Of Work Beckman Instruments, Inc.
- Subject Sterilization, Selling, Employees--Training of, Beckman Instruments, Inc., Materials--Marketing
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Main laboratory at Dow Midland plant
- 1930-Mar
General view of employees at work in the main laboratory at the Dow Chemical Company facilities located in Midland, Michigan. Assorted laboratory glassware and apparatus are visible throughout the laboratory.
- Creator Of Work Dow Chemical Company
- Subject Employees, Scientific apparatus and instruments, Dow Chemical Company, Glassware, Laboratories
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4 items
Sterimatic: Automatic Preparation of Sterilizing Rinse Solutions for Fountains and Bars
- Circa 1940
The brochure touts the benefits of a device which automatically dispenses a pH-controlled chlorine germicide rinse. Soda fountains, bars, and lunch counters are the target market.
- Creator Of Work Beckman Instruments, Inc.
- Subject Infection--Prevention, Hydrogen-ion concentration--Measurement--Instruments, Scientific apparatus and instruments, Chlorine, Sterilization, Disinfection and disinfectants, Beckman Instruments, Inc., Restaurants--Sanitation, Hydrogen-ion concentration
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2 items
pH
- Undated
This mailer, sent to Beckman shareholders, was a reprint from a company publication and explained the significance of the pH meter.
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from…
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Fig. 67: Gannets' Breeding-ground on a Guano Island
- 1913
- Author Martin, Geoffrey, 1881-1966
- Publisher D. Van Nostrand Company
- Subject Nitrogen, Chemistry, Phosphorus, Calcium phosphate, Gannets, Guano
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Fig. 54: Stalactite Columns
- 1913
- Author Martin, Geoffrey, 1881-1966
- Publisher D. Van Nostrand Company
- Subject Calcium carbonate, Chemistry, Stalactites and stalagmites, Carbon dioxide, Limestone
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Fig. 53: Exploration of Maelstrom in Mammoth Cave
- 1913
In Chapter XI on carbon dioxide, Geoffrey Martin discusses limestone rocks and formations. Of Mammoth Cave in Kentucky, he writes:
"One distant and dangerous abyss, called the Maelstrom, was first explored by a boy,…
- Author Martin, Geoffrey, 1881-1966
- Publisher D. Van Nostrand Company
- Subject Chemistry, Carbon dioxide, Caves, Limestone, Kentucky--Mammoth Cave
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Fig. 65: Lunar Landscape
- 1913
- Author Martin, Geoffrey, 1881-1966
- Contributor Nasmyth, James, 1808-1890, Carpenter, James, 1840-1899
- Publisher D. Van Nostrand Company
- Subject Lunar geology, Moon, Sulfur, Lunar volcanoes, Lunar craters, Chemistry
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FIg. 32: Dr. Leonard Hill administering Oxygen
- 1913
- Artist Ambrose, Charles
- Author Martin, Geoffrey, 1881-1966
- Publisher D. Van Nostrand Company
- Subject Chemistry, Breathing apparatus
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