A defect is any nonconformance of the unit of product with the specified requirements. A defective is a unit of product which contains one or more defects. Failure to meet requirements with respect to quality characteristics are usually described in terms of defects or defectives.
Critical defect - A critical defect is on that judgment and experience indicate is likely to result in hazardous or unsafe conditions for individuals using, maintaining, or depending upon the products; or prevent performance of the tactical function of a major end item. A critical defective is a unit of product that contains one or more critical defects. You can provide your own list of Critical Defects to be inspected. China Quality Focus's default Major Defect AQL is 0.
Major defect - A major defect is one, other than critical, that is likely to result in failure, or to reduce materially the usability of the unit of product for its intended purpose. A major defective is a unit of product that contains one or more major defects. You can provide your own list of Major Defects to be inspected. China Quality Focus's default Major Defect AQL is 2.5.
Minor defect - A minor defect is one that is not likely to reduce materially the usability of the unit of product for its intended purpose, or is a departure from established standards having little bearing on the effective use or operation of the unit of product. A Minor defective is a unit of product that contains one or more defects. You can provide your own list of Minor Defects to be inspected. China Quality Focus's default Major Defect AQL is 4.0.