ACCEPTABLE QUALITY LEVELS AQL

AQL Sampling Plan for Inspection

AQL (acceptable quality levels) is a statistical tool of buyers and standards in industry-industry most used as long as the product is ready to send export as a supplier involved in International trade has often used AQL (acceptable quality level)

AQL (Acceptable Quality Level) The history of this table is the standard of United States equivalent in all International organizations (ANSI/ASQC Z 1.4, NF06-022, BS 6001, DIN 4080)

In the foundation there are 3 types of Defect or defects are:

  • Defect Critical defects: 0 % zero Defect/Critical defects is a defect that is completely unable to be received Karna can be harmful to the user
  • Major Defect 2.5%: For major defects these products are normally not acceptable or can still be considered dependent on the outcome of his percentage whether exceeding his table limit
  • Defect Minor 4.0%: for minor defects or minor defects This is usually defective products can still repair or in repair large segments of users do not mind during the percentage does not exceed the existing limit in the table

With the table method AQL (acceptable quality level) can simplify the way of checking quality or quality by taking samples based on the quantity that is produced by using the AQL table (Acceptable Quality Level) will be known how the minimum number of quantity of samples must be checked and can already represent all the quantity order.

From the checking done based on the number of samples there is a rule that is how defective/defect production is allowed so that the production is worthy of quality export and worthy or the effect of the trust of the buyer/client that the order is already in accordance with the given so that by using the table AQL (acceptable quality level) is very suitable for assessing the quality/quality of these products.

The inspection level – Three inspection levels dictate how many samples to inspect:

Level I – This is the least strict inspection level. It can be used if the importer has a lower tolerance for product quality issues, such as with lesser-value gifts that come free with a purchase. Or perhaps a supplier has passed all previous inspections, and the buyer feels confident in their product quality. It is important to understand that settling for a Level I inspection as a way to spend less time and money is a high-risk strategy.

Level II – Used by default, Level II is the most widely adopted.

Level III – The strictest inspection level, Level III dictates the largest sample size and is, therefore, most representative of the overall quality of the products. Buyers may opt for a Level III inspection for high-value products.

AQL
AQL

Example: 

For production inspection with Quantity order: 4,800 PCs

With Level II limitation, Major 2.5 Minor: 4.0

Indicating the level of Inspecksi is the line: L

and sample its size as much as: 200 pcs

Max Major Limit: 10 pcs (meaning if find defect more than 10 PCs will be Failed)

Max Minor Limit: 14 pcs (meaning if defect minor find more than 14 PCs will be failed)

And behind it: if you find a major below 10 Pcs and Minor below 14 Pcs  the results: Passed

Electrical & Electronics

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