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Why the AQL tables are not in favor of the buyer

September 30, 2013

Why the AQL tables are not in favor of the buyer

This is the third and last video about the ANSI tables (also known as “AQL tables”). As I explained in the last video, these sampling schemes were designed for very stable relationships, where the manufacturer keeps making the same products and keeps shipping them regularly (e.g. twice a month) to the same customer. As a consequence, the assumption is that quality is under control. And an inspection is used to catch the big accidents. What it means is that the statistics are way, way … [Read more...]

Filed Under: Quality Control Tips Tagged With: ANSI/ASQ Z1.4, AQL, Aql Tables, defects, product inspections, qa, QC, quality inspections

What is an inspection level in ISO 2859-1 and ANSI/ASQ Z1.4?

December 1, 2011

What is an inspection level in ISO 2859-1 and ANSI/ASQC Z1.4?

This article introduces the different options available to buyers when it comes to the representativity of inspection findings. Inspection level II (under "normal severity") is appropriate for most inspections. But it is sometimes necessary to increase--or reduce--the number of samples to check. … [Read more...]

Filed Under: Quality Control Tips Tagged With: ANSI/ASQ Z1.4, ISO 2859-1, quality inspections, Sampling, special inspection levels


Weekly updates for professional importers on better understanding, controlling, and improving manufacturing & supply chain in China.

This is the official blog of Sofeast.com.

This blog is written by Renaud Anjoran, an ASQ Certified Quality Engineer who has been involved in Chinese manufacturing since 2005.

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