Key Process Control for Range Test

Quality control of key process is important and difficult in the quality management system GJB9001B. Ac-cording to the problems in the key process of range test found in system internal audit and considering the actual situa-tion of range test, a practical method for interpreting key process definition and identification is proposed in this paper. Taking an acceptance trial for example, this study presents the operations for the key process, such as the identification, the list preparation and evaluation, and the control, in order to provide a reference for the quality control of range test.