What is Acceptable Quality Level (AQL)?
Goods are sampled or inspected in order to check their quality. AQL is the maximum number of defective products that is acceptable when inspecting a sample size. There are seven levels of inspections as stipulated by ISO 2859. When these inspections are being carried out, there is a limit to the number of defective goods that can be found in a sample size. Any number above the limit will render the entire pool of goods worthless and unacceptable.
The acceptable quality level (AQL) of products differ from one industry to another.