In a continuing series of lots, a quality level that, for the purpose of sampling inspection, is the limit of satisfactory process average.
The variance from a performance standard that a contractor is allowed, before the Government rejects its services. Generally speaking, a contractor will be given an an opportunity to correct non-conforming services if it can be accomplished within the required delivery schedule.
Criteria agreed between vendor and purchaser, regarding the proportion of permissible defective items within a consignment without causing rejection.
("AQL") The maximum percent defective (or the maximum number of defects per hundred units) that, for the purpose of sampling inspection, can be considered satisfactory as a process average. [D00002] MIL-STD 105 QMPP
(AQL) AQL is limit of a satisfactory process average at a particular quality level when a continuing series of lots is considered.
A quality level established on a prearranged system of inspection using samples selected at random.
The maximal percent of nonconforming items (or the maximal number of nonconformities per 100 items), which is considered, for inspection purposes, as a satisfying process mean. The AQL is generally specified by the authority responsible of sampling. Different AQLs may be designated for different types of defects. It is common to use an AQL of 1% for major defects, and 2.5% for minor defects. Values of AQL that are 10% or less are suitable for percent nonconforming or nonconformities per 100 items. Values of AQL over 10% are only suitable for nonconformities per 100 items.
Maximum number of defects per 100 pieces that are allowable.