Goods should be identifiable
The available units, models, colours and assortments should be distinguishable against the order information supplied by the buyer.
Finished-goods review before release
Pre-shipment inspection in China
A pre-shipment inspection gives a buyer a structured view of finished goods before an order is released for shipment. It can compare a selected sample and available order information with an agreed inspection scope.
The useful question is not whether every order follows one universal checklist. It is which product, quantity, workmanship, function, labeling and packaging points matter for this purchase—and which of them can reasonably be checked at the supplier location.
Service definition
What is a pre-shipment inspection?
Pre-shipment inspection, sometimes described as final random inspection, is typically considered when production is substantially complete and enough finished, packed goods are available for meaningful selection. Its role is to examine the condition and readiness of the order at a late stage, before the buyer makes a shipment or release decision.
The inspection scope should come from buyer requirements rather than a generic pass/fail formula. Purchase-order details, product specifications, approved samples, artwork, packaging instructions and known concerns can all affect what is checked. The resulting observations help the buyer compare what was available at inspection with those references.
A PSI is different from continuous quality control. It takes place near the end of production, so it may identify issues that are expensive or time-consuming to correct. For products with risks that need earlier intervention, an initial-production or during-production inspection may be more appropriate as well as, or instead of, a final check.
Inspection timing
When a final inspection is useful
Timing should allow the inspector to select from genuinely finished goods while leaving the buyer enough room to review findings before shipment. The appropriate production-completion point depends on the order and agreed method.
Finished quantity should be meaningful
A final inspection is less informative if only a small or unrepresentative part of the order is complete. Actual readiness should be confirmed when planning the visit.
Packing status affects the scope
If carton condition, shipping marks or packed assortment matter, sufficient goods need to be packed and accessible. Opening cartons may also need to be agreed with the supplier.
Shipment should not remove the decision window
The buyer needs a practical opportunity to consider observations, ask questions and decide whether supplier action is needed before release.
Finished-goods scope
What a PSI may check
Check categories should be selected for the product and supported by buyer references. They are possible scope items, not a universal YiwuQC checklist.
Quantity and order readiness
Available finished and packed quantities may be compared with the order information provided. Model, colour and size assortment can be reviewed where accessible. This is an observation at the inspection time, not confirmation that shipment later remains unchanged.
Workmanship and visible defects
A selected sample may be reviewed for appearance and construction issues appropriate to the product: for example scratches, contamination, uneven assembly, loose parts, stitching issues, colour variation or printing defects. Defect categories should reflect buyer priorities.
Dimensions and specifications
Measurements such as length, width, weight or component dimensions may be checked where suitable references and practical tools are available. Tolerances should be supplied or agreed; the inspection should not invent an engineering limit.
Basic function where applicable
Simple operational checks may be included when they can be performed safely in the available setting. The method, sample size and expected result should be clear. This does not automatically include laboratory, certification, endurance or specialised engineering testing.
Labels, markings and accessories
The scope may compare model labels, logos, barcodes, warnings, manuals and included accessories with buyer-supplied references. Legal or regulatory compliance is not established merely because visible text is present.
Packaging and shipping marks
Retail packs and export cartons may be reviewed for condition, sealing, assortment, protection and specified marks. Product fragility, transport method and buyer instructions help determine which packing risks deserve attention.
Buyer inputs
Information that defines the inspection
The clearer the references, the easier it is to distinguish an objective requirement from a preference or assumption.
- Purchase order, model list, quantities and assortment breakdown
- Product specifications, drawings, measurement tolerances and approved sample details
- Colour, material, component and workmanship requirements
- Applicable artwork, labels, barcodes, warnings and shipping marks
- Retail packaging, export carton and packing-method instructions
- Accessories, manuals and other in-box documentation
- Requested sampling approach and acceptance criteria, if already defined
- Known defects, prior supplier issues and buyer-designated critical points
- Checks that require special equipment, setup, samples or supplier cooperation
Sampling decisions
AQL and acceptance criteria depend on the order
Many pre-shipment inspections use sampling because checking every unit may be impractical. A sample can provide useful evidence about the inspected lot, but it cannot prove that every unselected unit is defect-free. Selection method and access to the available goods affect how representative the observations can be.
AQL-based sampling may be used when the buyer and inspection scope define the relevant lot, inspection level and acceptance quality limits. There is no single AQL level that is correct for every product. Critical, major and minor defect classifications also need clear definitions tied to buyer risk.
Where a buyer requires 100% inspection, specialised testing or a different statistical plan, that requirement should be discussed explicitly. It should not be assumed from the phrase “pre-shipment inspection” or “final random inspection.”
Clear boundaries
What pre-shipment inspection cannot prove
A PSI records observations from the goods, references, access and conditions available at a particular time. It does not guarantee a defect-free shipment or prevent goods from being changed after inspection.
Sampling creates uncertainty because unselected units are not directly examined. Concealed, intermittent or long-term performance issues may not appear during limited onsite checks.
Product inspection does not automatically verify supplier identity, factory capability, legal compliance, certification validity or laboratory performance. Those questions may require supplier verification, a factory audit, document review, accredited laboratory testing or specialist expertise.
If specifications are missing or ambiguous, findings may be limited to observable condition and common comparison points. Clear buyer criteria make the inspection more decision-useful.
Before requesting PSI
What the buyer should prepare
Not every item will exist for every order. Supplying what is available helps expose gaps before the inspection is scoped.
- Confirm the supplier or factory address and on-site contact.
- State the product, models, variants, total quantity and expected completion status.
- Share the purchase order and current specification revision.
- Provide approved samples, drawings, artwork or reference photos when relevant.
- Define critical requirements, known risks and defect classifications.
- Explain requested functional checks and any necessary setup or equipment.
- Provide packaging, label, barcode and shipping-mark requirements.
- Clarify the sampling or acceptance plan rather than assuming a default.
- State the intended shipment date while retaining time to review observations.
Related inspection stages
PSI is one point in a wider quality plan
A late-stage inspection answers a different question from checks during production, broader product inspection planning or loading oversight.
Buyer questions
Pre-shipment inspection FAQ
These answers describe general inspection practice. The agreed scope controls what applies to a particular order.
When is a pre-shipment inspection usually carried out?
It is generally planned when production is substantially complete and sufficient finished goods are available for selection. Packing status also matters when cartons, assortments and shipping marks form part of the scope. The buyer should retain time to review observations before shipment.
Is pre-shipment inspection the same as final random inspection?
The terms are often used for a similar late-stage inspection concept, particularly where units are selected from a finished lot. The actual scope still needs to define readiness, sample selection, check items, defect classes and acceptance criteria.
Does PSI use one standard AQL?
No. AQL settings, inspection levels and defect limits depend on the product, buyer requirements and risk. If the buyer has not defined them, they should be discussed rather than silently replaced with a universal default.
Can PSI confirm product safety or regulatory compliance?
Visible labels or basic functions may be checked when included, but that does not automatically establish safety, legal compliance or certification. Laboratory testing, technical file review or specialist assessment may be required separately.
What happens if issues are observed?
The buyer reviews the documented observations against the agreed criteria and decides how to proceed with the supplier. Possible actions depend on the purchase agreement and situation; an inspection should not make that commercial decision for the buyer.
Prepare the scope before contacting YiwuQC
Bring the order details together
Prepare the product, supplier location, quantity, completion status, specifications, packaging requirements, sampling expectations and known concerns. These details help define the inspection question without assuming a standard scope.