Design and development of intra lot group acceptance chain sampling plans with an emphasis on zero tolerance non-conformities

Abstract

In this article a new sampling plan to control product quality known to be Intra Lot Group Acceptance Chain Sampling Plan (ILGAChSP) is developed. Group Acceptance Sampling Plans are widely used in life testing experiments and has applications in research and development centers. In many testing fields, zero defective is expected in every groups or batches. Hence in this paper zero defective is emphasized during testing with an allowance of a non-conformity in a chain of i groups within the same batch of products. If a defective is found then the batch will be accepted only if ‘i’ consecutive chain of groups have zero defective in the current lot. Since ‘i’ chain of groups are tested in the same batch or lot it is termed as Intra Lot Group Acceptance Chain Sampling Plans.