Designing Different Sampling Plans Based on Process Capability Index

Acceptance Sampling models have been widely applied in companies for evaluation the raw material as well as the final products. Meanwhile, process capability indices (PCIs) have been used in various industrial environments as capability measures that are obtained based on process departure from a target, process yield, process consistency, and process loss. In this research first a repetitive group sampling (RGS) plan based on process capability index is developed for variables inspection. Then the optimal parameters of proposed RGS plan are determined and also a new multiple dependent state (MDS) sampling plan, a double sampling plan (DSP) and a sampling plan for resubmitted lots have been developed and Finally, a comparison study has been carried out between proposed sampling plans and the results are elaborated.