Recording or Chart Speed:

The chart speed on the recording of the TG curve of rapid or slow reaction has pronounced effect on the shape of the TG curves. To a slow decomposition reaction low chart speed is recommended for recording the TG curve because at high chart speed the curve will be flattened and it will not show the sharp decomposition temperature. To a slow reaction followed through a rapid one at the lower chart speed the curve will show less separation in the two steps than the higher chart speed curve. To fast-fast reaction followed through slower one similar observation was observed in shorter curve plateaus.