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Module 14B - QC Checkpoints

Module 14B: 10-Stage Quality Control SOP

Exhaustive 10-checkpoint quality audit protocols from incoming raw timber inspection to pre-shipment container sealing.

10 Checkpoints of Total Quality Management

Every sofa undergoes 10 distinct quality gates to guarantee zero-defect delivery across international ocean voyages.

GateInspection StageStandards & Instruments
Gate 1Incoming Timber & PlywoodMoisture meter check (<12%), knot and crack inspection
Gate 2Steel Hardware & FastenersSalt spray rust resistance (72 hrs), steel gauge caliper
Gate 3Fabric & Leather RollsColor consistency under D65 light box, tensile rub check
Gate 4CNC Wood Frame GeometryDiagonal dimensional tolerance check (±2mm)
Gate 5High-Density Foam BondingEco water-based adhesive spray coverage check
Gate 6Sewing & Seam Stitching6-8 stitches per inch, seam pull tension test
Gate 7Upholstery Tension & FitVisual inspection for wrinkles, edge alignment, piping
Gate 8Mechanism Operational Testing3x cycle opening and closing under manual load
Gate 9ISTA-3A Drop-Tested Packaging5-ply corrugated carton, corner foam, moisture wrap
Gate 10Container Loading SupervisionWeight distribution, moisture desiccant, door seal audit

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