Useful Information

Euro Pallets: 1200mm x 800mm

US Pallets: 48" x 40" x 5.5"

Acceptable Quality Level (AQL for short) is a compromise between not doing any inspection at all and 100% inspection. This international quality control standards clearly defines the number of samples to be drawn for inspection from a given lot or consignment. It also suggests the maximum number of defective items allowed in the sample size.

With the AQL standard, here is a confidence statement you can make:
If the lot passes the sampling plan, you can state with 95% confidence that the quality level of the lot is equal to or better than the AQL (i.e., the defective rate of the lot < AQL).

On the other hand, if the lot fails the sampling plan, you can state with 95% confidence that the quality level of the lot is worse than the AQL.

Unless otherwise instructed, ASIAPACK uses the Single Sampling Plan Normal Level I: no Critical defect is accepted. For Major defects we use AQL 2.5 and for Minor defects we use AQL 4.0. This is generally the common requirement for consumer products.

CRITICAL DEFECTS, MAJOR DEFECTS AND MINOR DEFECTS:

Defects detected during visual inspection are classified within 3 categories:
Critical: likely to result in unsafe condition or contravene mandatory regulation
Major: reduces the usability of the product or is an obvious appearance defect
Minor: doesn't reduce the usability of the product, but is a defect beyond the defined quality standard.

Customers can specify what points are minor, major or critical in a checking-list together with the inspection criteria and product specification.

We use the AQL table to calculate the number of sample drawn depending on shipment Quantity. The required sample size and maximum defects allowed will be shown in the following:

Samples are randomly drawn from the square root of cartons (√(total number of cartons). i.e. If 100 cartons, you need to select samples from 10 different cartons, and randomly within those cartons. We use the AQL table to calculate the number of sample drawn depending on shipment Quantity.

Example 1
If the lot has 200 pieces, 13 samples should be randomly taken out,
If no more than 1 minor defect found and no Major defect found, LOT ACCEPTED

If more than 1 minor defect found or 1 or more Major defect found, LOT REJECTED

Example 2
If the lot has 5.000 pieces, 80 samples should be randomly taken out,
If no more than 7 minor defects found and no more than 5 Major defects found, LOT ACCEPTED

If more than 7 minor defects found or more than 5 Major defects found, LOT REJECTED