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Department Archives Remove constraint Department: Archives Format Text Remove constraint Format: Text Date 1943 Remove constraint Date: <span class='single'>1943</span>

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    • 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…