Factors that influence DTA Curve:

Rather empirical nature of the techniques provides rise to several difficulties originating from small differences in methods e.g. the peak temperature generally used for reporting differential thermal results as well as for identification is variable depending upon the rate of heating, packing of specimen, amount of active material, type of specimen holder many more. Therefore standardization of technique is necessary. In general, it is necessary that every apparatus should be calibrated from the mineral expected to be the sample under investigation.