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  • 1 Zentralinstitut für Anorganische Chemie der Akademie der Wissenschaften der DDR Berlin DDR
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When the Derivatograph Q 1500 D is used for thermal measurements at high sensitivity, some disturbances must be taken into account. The influence of the following processes on the results is discussed: (1) variations in buoyancy, (2) frictional forces on the sample holder caused by streaming gas and (3) loss of adsorbed layers from the inert substance during simultaneous TG-DTA measurements.

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