| Product Specification | Material composition | Declare the primary polymer, filler, reinforcement, and recycled-material content by percentage where applicable. | Material specification sheet, supplier declaration, and a retained production sample. | Quotation | Required |
| Product Specification | Nominal thickness | Common heavy-duty range: 3–20 mm | Measure at a minimum of five evenly distributed points using a calibrated thickness gauge. Confirm the agreed tolerance before purchase. | Pre-production | Check |
| Product Specification | Width and length tolerance | Use a written tolerance, commonly ±1% for cut dimensions unless a tighter tolerance is agreed. | Steel-tape measurement of each sampled roll or sheet; record actual dimensions on the inspection report. | Final inspection | Check |
| Product Specification | Surface pattern and backing | Pattern, drainage channels, perforations, backing texture, and edge finish must match the approved reference sample. | Signed golden sample, product drawing, and side-by-side visual comparison under consistent lighting. | Approval | Required |
| Performance | Slip-resistance test method | Specify the test surface, contaminant, footwear or slider, test angle, and acceptance value. Do not compare results from different methods as equivalent. | Independent or in-house laboratory report identifying the complete test method and conditions. | Sample approval | Critical |
| Performance | Load and compression behavior | Define the intended load, contact area, dwell time, and allowable permanent deformation for the application. | Compression or load test report using the same thickness and construction as the ordered product. | Technical review | Critical |
| Performance | Temperature resistance | Confirm the operating-temperature range based on the polymer formulation and the end-use environment. | Material technical data sheet and, when required, heat-aging or low-temperature flexibility test results. | Technical review | Check |
| Performance | Oil, water, and chemical exposure | List the specific fluids expected in service. Resistance is chemical-specific and should not be described as universal. | Compatibility chart or laboratory immersion results for the named chemicals and exposure time. | Application review | Critical |
| Quality Control | Visual defect inspection | No cracks, tears, blisters, delamination, exposed reinforcement, severe warping, or unfilled areas. | Defined defect limit, inspection lighting, sampling plan, and photographs of non-conforming products. | Final inspection | Required |
| Quality Control | Color consistency | Color must match the approved sample or agreed color reference; establish a visual tolerance before production. | Batch comparison against the approved sample and, for controlled colors, instrument readings where available. | Final inspection | Check |
| Quality Control | Odor and surface cleanliness | No excessive odor, oily residue, loose particles, or contamination that could affect installation or use. | Visual and sensory inspection after unpacking; document results by batch. | Final inspection | Required |
| Quality Control | Batch traceability | Each production lot should be linked to a production date, raw-material batch, quantity, and inspection record. | Lot number on packaging, packing list, production record, and certificate of conformity. | Production | Critical |
| Supplier Verification | Legal business identity | Verify the supplier’s registered legal name, registration status, registered address, and business scope. | Current government registration extract or an independently verified corporate record. | Pre-qualification | Required |
| Supplier Verification | Manufacturing capability | Confirm whether production is performed in-house or outsourced and whether the facility can meet the required dimensions and volume. | Video or on-site audit, equipment list, process-flow diagram, and recent production records. | Pre-qualification | Critical |
| Supplier Verification | Quality management system | Check documented incoming inspection, process control, final inspection, calibration, complaint handling, and corrective action procedures. | Audit checklist, quality manual excerpts, calibration records, and sample inspection reports. | Supplier audit | Required |
| Supplier Verification | Testing competence | Confirm that internal test equipment is suitable for the agreed properties and is maintained or calibrated at defined intervals. | Equipment inventory, calibration certificates, test procedures, and test-personnel records. | Supplier audit | Check |
| Ordering | Purchase-order controls | Specify material, dimensions, tolerances, pattern, color, packaging, quantity, delivery term, inspection method, and acceptance criteria. | Signed purchase order, approved technical specification, and approved pre-production sample. | Order placement | Critical |
| Ordering | Sample approval | Approve a production-equivalent sample before mass production; retain one controlled sample for later comparison. | Sample approval form containing dimensions, material, appearance, test results, date, and authorized signatures. | Pre-production | Required |
| Ordering | Packaging and labeling | Packaging must protect against moisture, deformation, abrasion, and contamination during handling and transport. | Packaging specification, carton or roll-marking photographs, quantity-per-package record, and shipping inspection. | Dispatch | Check |
| Inspection | Pre-shipment inspection | Inspect product quantity, dimensions, appearance, packaging, markings, and agreed performance documents before release. | Inspection report with sampling basis, measured results, defects, photographs, and release decision. | Before shipment | Critical |
| Inspection | Non-conformance handling | Define rejection, rework, replacement, credit, and corrective-action procedures before the first order. | Written quality agreement, corrective-action report, root-cause analysis, and closure evidence. | After inspection | Required |
| Documentation | Shipping and compliance file | Maintain the purchase order, commercial invoice, packing list, transport document, inspection report, and applicable test records. | Complete shipment file matched to the production lot and container or package identification. | Shipment | Required |