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Department Archives Remove constraint Department: Archives Rights In Copyright Remove constraint Rights: In Copyright Date 1943 Remove constraint Date: <span class='single'>1943</span>

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    • circa 1943

    The oxygen recorder described was intended for analyzing flue gases produced from burning oil or coal.

    • 1943-Oct-26

    Memo regarding Pauling Oxygen Meter submarine model, which was developed by Arnold Beckman during World War II. The British Navy has put in orders for the instrument, and here Pauling inquires as to why the United…

    • 1943-Aug-18

    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…

    • 1943-Nov-18

    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…

    • 1943-Dec-02

    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…

    • 1940s

    This advertisement for the Model G pH meter highlights the different electrodes that could be used with it. The Model G was Beckman Instruments's first commercial pH meter.

    Arnold Beckman invented his first pH meter in…