PVC FOAM BOARD Quality Inspection Checklist (Professional Standard)
Document Version: V1.0
Applicable Scope: Rigid PVC Foam Board / Celuka PVC Foam Board / Free Foam PVC Board
Inspection Standard: Factory Internal Standard, ISO General Plastic Board Inspection Specification, Customer Custom Requirements
Inspection Purpose: Verify the appearance, dimension, physical performance, processing property and packaging quality of PVC foam boards to ensure compliance with production standards and customer delivery requirements
Sampling Rule: Random sampling according to AQL 2.5 inspection level; full inspection for special customized orders
Inspection Result Judgment: PASS / FAIL / PENDING (to be confirmed)
1. Basic Production & Inspection Information
| Inspection Item | Detailed Information | Remarks |
|---|---|---|
| Production Batch No. | Must be consistent with production order | |
| Production Date | ||
| Board Type | Celuka / Free Foam / Co-extruded | Confirm with customer order |
| Specifications (Thickness*Width*Length) | Unit: mm | |
| Inspection Date | ||
| Inspector | ||
| Total Quantity / Sampling Quantity |
2. Visual Appearance Inspection (Full Visual Check)
Inspection Condition: Natural light or 40W uniform light source, inspection distance 50-100cm, no visual obstruction
| No. | Inspection Item | Acceptance Standard | Inspection Result | Defect Description |
|---|---|---|---|---|
| 2.1 | Surface Smoothness | Board surface is flat, smooth and uniform; no bulges, dents, wrinkles, scratches, cracks and peeling; no uneven foaming traces | ||
| 2.2 | Color Consistency | Uniform color of the whole batch of boards; no color difference, yellowing, discoloration and color spots; consistent with confirmed color sample | ||
| 2.3 | Surface Stain & Impurity | No oil stains, dust, black spots, foreign particle impurities and printing marks on the board surface; no residual adhesive | ||
| 2.4 | Edge & Corner Condition | Neat and smooth cutting edges, no burrs, chipping, cracks and missing corners; straight board sides without warped edges | ||
| 2.5 | Internal Bubble Condition | Uniform internal foam structure, no large hollow bubbles, broken bubbles and hole defects; dense and consistent core structure | ||
| 2.6 | Surface Film Condition | Protective film is fully attached, no warping, falling off, wrinkling and damage; film printing is clear (if applicable) |
3. Dimensional Tolerance Inspection (Precision Measurement)
Inspection Tools: Vernier caliper, steel tape, square ruler, thickness gauge
| No. | Inspection Item | Standard Tolerance | Measured Data | Result |
|---|---|---|---|---|
| 3.1 | Thickness Tolerance | ≤3mm: ±0.2mm; 3-10mm: ±0.3mm; ＞10mm: ±0.5mm | ||
| 3.2 | Length & Width Tolerance | ±1.0mm / 1000mm (industry standard); comply with customer customized tolerance | ||
| 3.3 | Diagonal Deviation | Diagonal length difference ≤2.0mm (ensure board is square) | ||
| 3.4 | Flatness & Warpage | No obvious bending and warpage; warpage degree ≤1.5mm/m | ||
| 3.5 | Edge Straightness | Straight board edges, no irregular radian or skew deviation |
4. Physical & Chemical Performance Inspection
| No. | Inspection Item | Acceptance Standard | Result | Notes |
|---|---|---|---|---|
| 4.1 | Density Uniformity | Overall density uniform, no front-back density deviation; standard density range: 0.35-0.75g/cm³ (adjustable by customization) | No local loose foaming | |
| 4.2 | Hardness & Rigidity | Board surface is hard and solid, no soft and hollow feeling; good overall rigidity, no easy bending under normal pressure | Manual & instrument test | |
| 4.3 | Toughness & Crack Resistance | No crack or fracture after slight bending; good toughness, not brittle; no layer separation | Prevent brittle defective products | |
| 4.4 | Water Resistance | No water absorption, no swelling and deformation after short-term water contact; good waterproof performance | ||
| 4.5 | Flame Retardancy (Optional) | Meet UL94 V-0 flame retardant standard (for flame retardant grade boards); self-extinguishing, no open flame spreading | Test for FR grade only | |
| 4.6 | Weather Resistance (Spot Check) | No obvious discoloration, aging and cracking after simulated temperature change test | Batch sampling test |
5. Processing Performance Inspection
| No. | Inspection Item | Acceptance Standard | Result |
|---|---|---|---|
| 5.1 | Cutting Performance | Smooth cutting section, no burrs, no powder falling, no hole collapse | |
| 5.2 | Printing & Laminating Performance | Good surface ink adhesion, no deinking; firm lamination, no foaming and delamination | |
| 5.3 | Nailing & Drilling Performance | No cracking or loosening around drilling and nailing positions, good fixing performance | |
| 5.4 | Hot Bending Performance | Uniform bending after hot processing, no surface cracking, no wrinkle deformation |
6. Packaging & Shipping Inspection
| No. | Inspection Item | Acceptance Standard | Result |
|---|---|---|---|
| 6.1 | Stacking Condition | Boards are stacked flat and neatly, no dislocation, extrusion deformation and friction damage | |
| 6.2 | Packaging Protection | Edge protectors, waterproof film and wrapping paper are complete; moisture-proof, dust-proof and collision-proof | |
| 6.3 | Label Marking | Outer package label is clear and complete, including batch no., specification, quantity, type, production date, logo | |
| 6.4 | Shipping Quantity Accuracy | Actual quantity is consistent with order and packing list, no shortage or excess |
7. Comprehensive Inspection Conclusion
Overall Inspection Result: □ PASS □ FAIL □ PENDING
Defect Summary (if any): _________________________________________________________________
Processing Suggestion: □ Pass for delivery □ Rework & re-inspection □ Reject & return to production
Inspector Signature: _______________ Supervisor Confirmation: _______________
Final Confirmation Date: _______________
