An internal memo exploring the consequences of Beckman Instruments discontinuing the IR-2T Spectrophotometer and making improvement to the new IR-3. The IT-2T had many flaws which were only discovered after the product was delivered to early purchasers.
The Beckman Instruments IR spectrophotometers began as a request from the Office of Rubber Reserve to Arnold O. Beckman in 1942, asking for an infrared spectrophotometer that they could use to create rubber. Under this contract, Beckman Instruments developed a single-beam spectrophotometer based on Robert Battrain’s extant design, which in 1942 was sold as the IR-1. With the IR-4 in 1956, Beckman Instruments branched out into double-beam design and kicked off a golden age of IR spectrophotometer production that lasted until 1973.
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Ahrendt, M. E. “Memo from M. E. Ahrendt to Beckman Instruments Staff,” July 2, 1952. Beckman Historical Collection, Box 13, Folder 21. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/6395w711g.
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