Blog
Practical guides on factory inspection, quality control workflows, and QC reporting. Written for teams on the floor, not for textbooks.
How to use an AQL calculator
Use an AQL calculator to set the sample size and acceptance limits. Record the inspection level, count rejected units correctly, and avoid common sampling errors.
Read guideCritical, major, and minor defects
Classify critical, major, and minor defects with product-specific examples. Build an agreed defect list and record clear evidence before making a lot decision.
Read guideControl limits vs specification limits
Learn the difference between UCL/LCL and USL/LSL. Use a worked factory example to separate process stability, product acceptance, and the next quality action.
Read guideHow to Run a Final Random Inspection (Step-by-Step)
A step-by-step guide to running a final random inspection: from setting your AQL threshold before the walk to issuing a clear pass, hold, or fail with documented proof.
Read guideWhat to Include in a Quality Inspection Report
The essential sections every factory inspection report needs: from order details and sample size to defect photos and a clear pass/fail decision that holds up in a dispute.
Read guidePre-Production Inspection Checklist for Factory Teams
A practical pre-production inspection checklist covering materials, approved samples, equipment, and documentation, so problems get caught before the line starts, not after 10,000 units are made.
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