Grading of powder specimens in respect of dispersion and compactness by means of the diffracted intensity

A measured quantity called powder specimen index (P.I.) is defined. This can be used in applied crystallography to monitor the quality of powders having a part in production procedures. Among possible uses the characterization of particle size of powders in single phase or mixtures, the measurement of the compactness of pressed bodies and the choice of appropriate calibration standards (or corrections) for the purpose of quantitative analysis are demonstrated.