ABSTRACT

 The data was collected from monthly files of the Quality control department. of Ebony Paints Industry. In this work, the actual measured quality characterstics of Bone white speedy Emulsion and Bone white speedy oil paint were considered from january 1997 to August 1999. The ultimate objective of the study was to construct control chart whih could be used to study the production process of the quality characteristics of the two types of paints. The statistical quality control technique used for this study was process control (by control chart devices). The quality characteristics investigated was the viscosity in K and the grade level in grammes per litre of the t o types of paints. Fer a more stable process variablity and mean, the points that lie outside .e waring and action limits were discarded and the control limits were revised. At the end of the study, it was concluded that Ebony Paints should not be rejected for its purpose. Thus, absolute rejection of their product should be buscd on their standard not this estimated standard (control limits).