Independent product inspection · China
Compare selected products with your specifications, approved samples and quality criteria — during production or before shipment, when the goods can be checked.
The checklist, sample size, basic tests and inspection timing depend on your product and buyer-defined requirements. Findings document observed evidence, not a guarantee for every unit.
How it works
Send the product specifications, order details and approved references.
Compare accessible items against the agreed quality criteria.
Use recorded checks and photographs to decide the next step.
Product conformity
Each item pairs an agreed product check with an example of the discrepancy it could reveal. Actual findings depend on the inspected goods.
Models, colours, sizes, components and available quantities may be compared with order information.
Possible finding: Models, colours, sizes, components or quantities presented at the inspection may not match the order breakdown supplied by the buyer.
Selected units may be reviewed for product-appropriate visible defects, assembly and finish against approved references.
Possible finding: Selected units may show scratches, stains, poor stitching, uneven finish, loose parts, assembly problems or other visible defects relevant to the product.
Specified dimensions or weight may be checked when suitable tools, methods and buyer tolerances are available.
Possible finding: Dimensions, weight, configuration, materials or other observable characteristics may differ from the buyer's stated specification or approved reference.
Safe onsite checks may be performed where applicable using clear instructions and expected results; endurance or laboratory testing is separate.
Possible finding: Agreed onsite checks may reveal products that do not operate as expected within the limited inspection method, without replacing laboratory or endurance testing.
Visible labels, artwork, manuals, parts and accessories may be compared with buyer-supplied requirements.
Possible finding: Manuals, labels, barcodes, logos, warnings, cables, fittings, spare parts or other required items may be missing or inconsistent.
Retail packing, assortment, export cartons and marks may be checked for condition and consistency with packing instructions.
Possible finding: Retail packs, inner packaging, export cartons, assortment, shipping marks or protective packing may differ from buyer requirements or show visible damage.
Timing matters
Inspect when the relevant products are accessible and there is time to respond. A final PSI is only one stage of product inspection.
Useful when first output, materials, configuration or early workmanship need checking before the majority of the order is complete. Problems found here may be easier to discuss before they repeat across more units.
Useful when production is underway and the buyer wants evidence from partly finished and finished goods while there may still be time to influence remaining production.
Used near completion to check selected finished goods, quantities, packaging and shipment readiness before release. It is the late-stage form of product inspection, not the whole service category.
Explore this stageUsed at the loading stage to observe presented packages, quantities and loading activity. It normally cannot replace earlier detailed inspection of selected product units.
Explore this stageSampling and AQL
Inspection depth, sample quantity, product variants, unpacking and practical onsite checks affect the work. Agree these before booking.
Check agreed samples of accessible products; the observed sample defect rate is not automatically the defect percentage of the whole order.
Confirm lot definition, sample plan, defect classes, inspection level and acceptance limits before the visit. There is no universal AQL for every product.
100% inspection requires an explicitly agreed scope, quantity, checking depth and inspector time. Multiple variants and complex tests may require multiple inspector-days.
Inspection workflow
List the goods, quantities, site and production status. Where available, provide a technical specification, inspection checklist, approved sample or questionnaire.
Working from buyer-defined requirements is the preferred approach. Measurements, defect definitions and acceptance points are agreed before the visit, so the inspector does not have to guess what the buyer would consider acceptable.
For a simpler inspection, the inspector can stay in contact with the buyer through a messaging app and send photos of questionable findings during the visit. The buyer can then say whether the point is acceptable, should be recorded as a defect or should be checked more closely on additional units.
The inspector records what was found in the units that were actually checked. The buyer can use the type and frequency of defects, together with the agreed criteria, to decide whether to ship, request rework or arrange another inspection.
Documented evidence
Results identify what was actually checked and observed — photos, measurements, basic functions, labels, packing and limitations where relevant.
For a documented finished-goods example, see the Inspection Report Sample on our PSI page.
Before booking
A short brief is enough to begin. Provide existing specifications where available and flag anything still undecided.
Buyer questions
No. It may be planned during production or after completion depending on the risk, available goods and buyer decision. PSI is the specific late-stage finished-goods form.
Current specifications, approved samples, drawings, tolerances, artwork, order details, defect definitions and packing instructions help turn preferences into observable criteria.
Basic onsite function may be included where safe and practical with clear instructions. Laboratory, endurance, safety and specialist testing are not automatic.
No. Sampling plans, inspection levels and acceptance limits depend on the product, lot, buyer requirements and risk.
No. Findings concern selected accessible goods and the agreed scope at a specific time. Unselected units and later changes remain limitations.
A normal inspection is often sample-based. If every unit must be checked, request a 100% inspection scope. The required inspector time depends on the product, quantity and depth of checks, so it should be planned separately rather than assumed to fit within one normal inspection visit.
Where the situation allows it, yes. For less-defined or interactive inspections, photos of questionable findings can be shared through a messaging app during the visit so the buyer can clarify whether a point is acceptable. A pre-agreed specification or checklist remains the more consistent method when repeatable acceptance criteria are important.
Product inspection enquiry
Send the product, factory address, order quantity, production status and key checks. We can clarify the inspection stage, sampling and quote before confirming the assignment.
Simple, transparent pricing
Independent product inspections, supplier verification and factory audits. Choose where your on-site service takes place.
$199 USD / person-day
On-site inspection and verification services in Yiwu.
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$249 USD / person-day
On-site services outside Yiwu, including other cities in Zhejiang.
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Please confirm your inspection scope, date and number of person-days with YiwuQC. Payment does not automatically reserve an inspector.
YiwuQC charges $199 per person-day in Yiwu and $249 per person-day elsewhere in China for standard services. One person working one day is one person-day. The total depends on the agreed number of inspectors and working days. Certification and independent laboratory testing are quoted separately.
