Caracterización del proceso de producción de agua tipo I para análisis de laboratorio mediante control estadístico de calidad

Abstract

It is intended to determine if the process of water production type I in an analysis laboratory is under statistical control, through the results of the variables conductivity, dissolved solids and pH, to establish warning limits and action limits because the acceptance criteria of the process is only used to comply with specifications, which does not allow taking timely action when the process is at risk of leaving statistical control. The evaluation was conducted using univariate control charts and capability analysis in phase I and II. Although in phase I the control charts of the three variables show that the process has been controlled, during phase II of operation it is evident that the conductivity and total solids variables present a positive shift in the average of the process. It is suggested that the process be standardized using other variables to evaluate and control the unit operations that make up the process.