How to read the “ANSI tables”, aka “AQL tables”. Source: Mil-Std E, replaced by commercial standards: ISO, ANSI/ASQ Z, NF, BS ANSIASQZRSampling Procedures and Tables for Inspection by Attributes-Sampling Procedures and Tables for Inspection by Attributes is an. Know the switching rules for ANSI/ASQ Z Categorize the various sampling plan systems in terms of lot-by-lot, continuous production, attributes or variables.

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We have no amendments or corrections for this standard. It provides tightened, normal, and reduced plans to be applied for attributes inspection for percent nonconforming or nonconformities per units. Subscription pricing is determined by: 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 AQL specified.

This standard is also available in these packages:. Of course, the decision about what to do after your received the inspection results belongs to you.

For any services Please contact Hong Kong: Inspection process What do we inspect during an inspection? For a standard order, the standard level II from the AQL gives the minimum sampling size we should check per reference if you do not z11.4-2003 to take additional risks.

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To find the AQL sampling size for inspection, we look at the first chart and locate the range of total items produced on the left side.

On the top of the second AQL chart, you can find the qsqc levels, ranging from 0 to 6. Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. How to find your sampling size on the AQL table?

This standard is also available to be included in Standards Subscriptions. Add to Alert PDF. Please first verify your email before subscribing to alerts.

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ANSI/ASQ Z1.4–2003 (R2013): Sampling Procedures and Tables for Inspection by Attributes

For example, if you are producing 8, items, at level II that results in the letter L which in turn corresponds to the inspection of items in the second table. Your Alert Profile lists the documents that will be monitored.

If we inspect a general level II sampling size on multiple references orders, then the sampling size is diluted and divided by the number of references, increasing the risks as the sampling size must not be representative enough.


If the document is revised or amended, you will be notified by email. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. Standards Subsctiption may be the perfect solution.

Download the AQL table. Choose which level to apply to each type of defect: In case the inspection results are very close to AQL limits, it is important that you double check if the level of found defects is acceptable to you or not. How to use the AQL Tables?

AQL (Acceptable Quality Limit) Inspection, Quality Control in China & Asia | AQF

Level II is the standard and is most commonly used. The AQL tables are incorporated into international quality standards to help ensure product quality meets your expectations. Need more than one copy? Proceed to Checkout Continue Shopping.

Acceptable Quality Limit (AQL) for product Inspections

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