An aql table typically refers to the ansi asq z1 4 table developed by the american national standards institute ansi and the american society for quality asq.
Ansi asq z1 4 sampling table.
It provides tightened normal and reduced plans to be applied for attributes inspection for percent nonconforming or nonconformities per 100 units.
Sampling procedures and tables for inspection by attributes is an acceptance sampling system to be used with switching rules on a continuing stream of lots for acceptance quality limit aql specified.
This is the current edition of z1 4.
Many importers don t bother to learn about aql sampling for product inspection because they think the aql table is too technical.
You use table i sample size code letters to determine the sample size code letter based on the lot or batch size.
This is a preview of ansi asq z1 4 2003.
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Asq ansi quality standards z1 4 z1 9 what is the z1 4 standard.
The numbers letters and terminology surrounding the ansi asq z1 4 standard table common for most inspections can seem a little intimidating at first.
Qc professionals commonly use the ansi asq z1 4 standard for aql sampling when inspecting consumer products.
Click here to purchase the full version from the ansi store.
This standard is an acceptance sampling system to be used with switching rules on a continuing stream of lots for aql specified.