Defect Rate vs Acceptance Number: How AQL Pass/Fail Logic Actually Works
In AQL inspection, the pass/fail decision is based on the Acceptance Number (Ac) — a fixed count of ...
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AQL Sample Size by Order Quantity: Reference Table for China Importers
AQL Sample Size is the number of units randomly selected from a production lot for quality inspectio...
What Is a Man-Day in Quality Inspection? How the Pricing Unit Actually Works
Most importers encounter the term "man-day" on their first inspection invoice—and assume it means ei...
Quality Inspection Glossary: 40 Terms Every China Importer Must Know
Understanding quality inspection terminology is not academic—it is operationally essential. When you...
Pre-Shipment Inspection Checklist: What Every Third-Party Inspector Should Cover
A pre-shipment inspection is only as reliable as its checklist. Without a comprehensive, product-spe...
AQL Tables Reference: Complete ISO 2859-1 Sampling Standards for China Importers
AQL tables are the most widely used quality control tool in international trade—yet most importers c...
