Arranging a China Pre-Shipment Inspection (PSI) only delivers tangible protection when 'inspection included' is translated into precise, measurable operational tasks.
Cosmetic visual auditing, digital caliper metrology, and physical operational testing answer vastly different quality questions.
1. Developing Inspection Checklists from End-User Scenarios & Functions
Identify the product and specification revision before listing the checks. Think about the conditions that would make the item unsuitable for its intended use.
Surface appearance may be central to one product, while component fit matters more for another.
| Area | Information to include |
|---|---|
| Product identity | SKU, colour, size and specification revision |
| Appearance | Areas to examine, finish and print position |
| Dimensions and fit | Measurement points, units, tolerances and mating parts |
| Operation | Procedure, number of checks and accessories needed |
| Packing | Set contents, labels, quantities and packing arrangement |
A requirement such as “no scratches” leaves questions about location and acceptance limits. Use written criteria with photographs or drawings of acceptable and unacceptable conditions.
Identify who should answer questions when a finding falls outside the agreed examples.
2. Segregating Routine Visual QC from Destructive Laboratory Testing
Visual checks, measurements and brief operation checks have defined limits.
Material analysis, extended durability testing and tests requiring dedicated equipment need their own purpose and method.
3. Inspection Coverage Allocation: 100% Full Inspection vs. AQL Sampling
A full inspection examines every designated unit for the agreed checks. A sampling inspection examines selected units from a defined lot.
Neither approach establishes characteristics that were not checked.
The report should state the actual quantity examined so the buyer can understand the reach of its findings.
4. Pre-Inspection Audit of Production Readiness & Master Assets
Finished production does not always mean everything is ready for inspection. Missing accessories, labels or packaging may prevent checks on the complete product set.
Confirm the available quantities and condition of the goods before arranging the work.
5. Compiling Actionable Photographic Defect Evidence for Factory Negotiation
A defect record should identify the SKU, quantity examined, issue, number found and relevant carton or lot. Combine an overall photograph with a close-up.
Add a measurement or comparison when it helps explain the difference from the agreed requirement.
6. Re-Inspection of Corrective Rework & Formal Shipping Release Sign-Off
When a supplier reports that repairs are complete, agree on the quantity and method for checking the result. Connect that follow-up to the original finding.
This separates resolved issues from those still awaiting a decision.
An existing checklist or previous defect record can help define the work required for the current order.