ABSTRACT
An important topic in Quality Control is the study of tolerance limits. In Quality Control, another important topic which is closely related to tolerance limits is the acceptance sampling plans. There are two kinds of acceptance sampling plans: attribute sampling plans and variable sampling plans. For an attribute sampling plan, the quality of an item is measured by the attribute of the item, defective and non-defective say. Otherwise, if the quality of an item is measured by a random variable, it is a variable sampling plan. Perhaps, a more crucial problem in sampling inspection is the design of a sampling plan, i.e. the determination of the sample size and the specification limit(s). Many schemes have been studied for the design of a sampling plan. There are: the producer’s and consumer’s risk point schemes, the defence sampling schemes, Dodge and Romig’s schemes, and the decision theory schemes.
