Quality Inspection
Definition
Testing products to ensure compliance with standards.
Historical Background
1970s: instrumental testing replaced subjective experience-based inspection.
Example
Thickness, adhesion, peel strength tested before shipment. Like a medical checkup.
Formula
Pass Rate (%) = Passed Products / Total Products x 100%
Core Concepts
Final quality gate: detecting non-conforming products to ensure 100% pass rate.
Extended Applications
Incoming: raw material QC; in-process: production monitoring; finished: shipping QC; type test: new product validation; third-party: external certification.