What is a normal AQL level?
Under normal inspection, AQL levels range from 0.065 to 6.5. The larger the AQL level, the more lenient the inspection. For general consumer products inspection, AQL level is usually set at 2.5, which implies a zero tolerance for critical defect, 2.5 for major defects, and 4 for minor defects.
What does an AQL of 2.5 mean?
In the quality control industry, defects are classified per critical, major and minor. If the buyer only mentions AQL 2.5, it means that the buyer accepts all kind of defects: critical, major or minor, to be present in the manufactured goods at a level of 2.5% of the total order quantity.
How is AQL calculated?
Acceptable Quality Level (AQL) is the maximum percent defective (or maximum number of defects per 100 units) that can be considered acceptable. AQL is measured in defects per 100 units.
What is a 1.5 AQL?
AQL of 1.5 represents that there are less than 1.5% of defects in a batch of gloves.
How do you read an AQL table?
Your AQL represents your relative tolerance for quality defects, the worst average percentage or ratio of defects that is acceptable. Higher AQLs represent higher tolerances. That’s not to say that you should aim for having some defective units in your order.
What does an AQL of 4.0 mean?
0% for critical defects (totally unacceptable: a user might get harmed, or regulations are not respected). 2.5% for major defects (these products would usually not be considered acceptable by the end user). 4.0% for minor defects (there is some departure from specifications, but most users would not mind it).
What does AQL 4 mean?
What does .65 AQL mean?
AQL means the poorest level of quality that is considered acceptable in a particular population or in a pre-defined sample size. For example: “AQL is 0.65%” means “I want no more than 0.65% defective items in the whole order quantity, on average over several production runs with that supplier”.
How do I select a level in AQL?
To sum up: There are no guidelines for deciding what AQL limits to choose. You have to decide what your tolerance will be. If the whole batch should not contain more than 1.0% of a certain kind of defect (over the long run), then the AQL should be 1.0% for this kind of defect.
What is an AQL sample?
Acceptable Quality Limit (AQL) AQL (Acceptable Quality Limit) Sampling is a method widely used to define a production order sample to find whether or not the entire product order has met the client’s specifications. Based on the sampling data, the customer can make an informed decision to accept or reject the lot.
What does AQL 0.1 mean?
What your market/customers can accept. The most common AQL chosen by importers is 2.5% for major defects, 4.0 for minor defects, and 0.1 for critical defects. It is considered the “standard” tolerance for most consumer products sold in supermarkets in North America and in Europe.
What is AQL sample size?
AQL for normal inspection table. On the AQL columns, you line up your AQL sample size of 125 units with the appropriate levels. If you are ordering consumer products, you will use 0.0 for critical defects, 2.5 for major defects, and 4.0 for minor defects as the AQL standards.