B. AQL PRODUCT INSPECTIONS |
Acceptable quality level (AQL) sample inspection methods have been proven to be accurate over the long run. However, the quality level of merchandise at destination is sometimes lower than the per shipment inspection results. This may be due to transport, handling, change in environment and/or reliability problems. Buyers are therefore advised to take this into consideration when deciding the AQL levels. Defect Classification The client defines the AQL and the maximum number of defective goods allowed in the sample size. Defects detected during visual inspection are usually classified within 3 categories: "Critical", "Major" and "Minor".
A product with defect(s) is called a defective sample. In the inspection process one defective sample is counted, one for the most serious defect no matter how many defects are found in the said sample. Clients can specify what points are minor, major or critical in a defect classification checking-list together with the inspection criteria and product specification. |