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Why the AQL Inspection System Is Still So Widespread

March 21, 2023 by Renaud AnjoranLeave a Comment

Why the AQL Inspection System Is Still So Widespread

In the 1930s, some smart statisticians at Bell Labs worked on an amazing amount of manual calculations to suggest sampling plans for product quality inspections. Over time, it became the topic of MIL STD standards and one of those plans … [Read more...]

Filed Under: Quality Control Tips Tagged With: 100% inspection, AQL, random sampling aql inspection

What Drives Product Inspection Costs?

December 9, 2022 by Adrian Leighton

What Drives The Cost Of Product QC Inspections?

It's important to inspect product quality, but if the inspections you get done aren't optimized you could end up spending too much on high product inspection costs which is a problem when that money could be used for other activities. … [Read more...]

Filed Under: Quality Control Tips Tagged With: inspection levels, quality inspection costs, random sampling aql inspection

What Is the Confidence Level when Working with AQL Tables?

August 1, 2019 by Renaud Anjoran

What Is the Confidence Level when Working with AQL Tables?

A reader wrote to me and asked the following question about sampling plans by attributes: What is the "Confidence Level" when using the AQL Tables? How can we determine what the confidence levels are, and are there formulas we can … [Read more...]

Filed Under: Quality Control Tips Tagged With: AQL, Aql Tables, confidence level, confidence levels, quality inspections, quality inspectors, random aql inspection, random sampling aql inspection

When To Do a Random AQL Inspection vs. Check 100% of the Goods

April 5, 2019 by Renaud Anjoran

When To Do a Random AQL Inspection vs. Check 100% of the Goods

First, let me get one thing out of the way: not all batches need to be checked. If a manufacturer has great systems and processes, and if they have a history of complying with your quality standard, there is usually no reason to send … [Read more...]

Filed Under: Quality Control Tips Tagged With: 100% inspection, AQL, product inspections, qa, QC, quality inspections, random aql inspection, random sampling aql inspection


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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