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  1. Newest piece of gear: A 1960's East German #refractometer. The wrench for the calibration screw is missing (1.3 mm square key) and the union nut for the thermometer is a bit loose (M16 x 0.75 ?).

    Unfortunately Google turns up nothing in regards to spare parts, or even parts that could be simply converted without special tools I don't have.

    Using a pair of tweezers for calibration and lots of teflon tape on the thread works, though :)

    #chemiverse #sciencemadness #chemistry