A few people told me recently that they had spent hours going through the archives of this blog to find articles on a certain theme.
So I gathered all the good articles I published over the years about the statistics, and more generally the procedure, around QC inspections.
1. About the procedure
Final product inspections: should the whole order be ready?
How to select the cartons to inspect in a factory
How to draw samples for a QC inspection
Procedure for dealing with failed final inspections
Procedure if a problem is detected during an in-process inspection
2. Basic concepts
What is the “AQL”, and when it is applicable?
What is an inspection level in ISO 2859?
Sampling plan calculations for quality inspections [infographic]
Why we shouldn’t check 10% of the order quantity
3. More advanced concepts
Inspection level vs. inspection severity
Bundling different products in one inspection: danger!
How to misuse the ISO 2859 standard: sets vs. pieces
The different types of sampling plans for QC inspections
How many samples to inspect? It depends…
4. Saving money while mitigating risks
How to reduce your QC inspections budget?