SMB Validation

What is an Acceptance Quality Level (MIL-STD-105E, ISO 2859-1 (1999))?

The acceptable level (AQL) is defined as the maximum percent defective (or the maximum number of defects per hundred units) that, for purpose of sampling inspection, can be considered satisfactory as a process average. The sampling plans most frequently used by the department of Defense are based on the AQL.