The efficient, routine use of automated colorimetry in the evaluation of the thermal degradation of PVC formulations

The thermal degradation of PVC compound involves the development of color. The evaluation of this degradation, and the associated additive performance, is often limited to that perceived by the human eye. This technique provides limited accuracy and precision. A quantitative technique incorporates the use of a colorimeter. Essentially errorless, laborless performance analyses are achieved with automated colorimetry. Elaborate data processing of the computer‐acquired digital information is then available.