THE number of rejections can be reduced or, in many cases,
trouble can be spotted in the production process before rejections occur, so that production can be increased - these are some of the advantages to be obtained when a control chart is used to control the quality of manufactured products.
The quality control chart here introduced by Mr. Gaillard is based on the statistical method.
It is applicable particularly to highly repetitive operations, and its use presents opportunities for getting a better grip on quality control in regard to physical and chemical properties of raw materials or the dimensional accuracy of interchangeable parts.
