You found a supplier, agreed on a price, and the shipment date is getting close. The goods look fine in photos, but photos do not show missing screws, wrong labels, weak packaging, or a carton count that is short. That is why buyers search for the best way to inspect products from China before shipping. The short answer: inspection works when it starts with a written standard, uses the right check at the right time, and ends with a report you can act on. A single last-minute visit is better than nothing, but it is not the strongest setup.
Start with a written spec and an approved sample
An inspector cannot decide whether a product is good if 'good' is not defined. Before you book anyone, put the product requirements in writing: dimensions, materials, colors, weight, function, labels, packaging, carton marks, barcode format, and any compliance test. If your product is custom, approve a physical sample and keep the same sample with the inspector or with your China team. Include clear photos. The most common cause of a failed inspection is not a lazy factory; it is a vague purchase order. A supplier can meet a vague order and still ship something you cannot sell.
Use the right inspection at the right stage
There is no single inspection that covers everything. Most SMB orders need a small combination.
| Stage | What it checks | When to book | Good for |
|---|---|---|---|
| Factory audit | Supplier setup, equipment, QC process, licenses, export experience | Before deposit or first order | New suppliers, high-value or custom products |
| During production check (DUPRO) | Early units, materials, workmanship, line status | When 20–40% of production is packed | Catching problems before the full run is made |
| Pre-shipment inspection (PSI) | Finished goods, quantity, function, packaging, labels, cartons | When 100% of goods are produced and packed | Most orders before balance payment and shipping |
| Container loading supervision | Carton count, loading condition, seal number, photos | On loading day | High-value, fragile, or mixed-SKU shipments |
| Lab testing | Safety, chemical, food-contact, electrical, textile standards | Before production or before shipment | Products with legal or retail requirements |
For many small and mid-size buyers, the core is a pre-shipment inspection. If the product is custom, high value, or legally regulated, add a factory audit, DUPRO, and lab testing where needed. If the order is simple and low value, a PSI with strong packaging checks may be enough.
How a pre-shipment inspection should work
A useful PSI is not a quick look around the warehouse. It should follow a sampling plan and produce evidence.
Book it 5–7 days before the planned shipment date. The factory should have all units finished and packed, not 'almost finished'. If the inspector arrives and production is still running, the result is weak. Ask the supplier to confirm the packing status in writing. The inspector should check quantity, carton count, product measurements, function, workmanship, labels, barcodes, packaging, and carton strength. For some products, add a drop test, pull test, color check, or simple performance test. The report should include the sample size, AQL levels, defect descriptions, and photos of the actual goods and cartons.
Do not release the balance payment or let the supplier book the container until you have read the report. If the report is only a one-page 'passed' PDF with no data, ask for the full report and the photo folder.
AQL sampling: what to ask for
AQL means acceptable quality limit. It is a sampling method, not a promise of zero defects. Most general inspections use ISO 2859-1, general inspection level II. A common starting point is critical 0, major 2.5, minor 4.0. That works for many consumer goods, but it is not right for every product. Medical items, food-contact goods, children's products, and electronics may need tighter levels and lab tests.
Tell the inspector your AQL levels in writing. Ask for the sample size and accept/reject numbers in the report. Do not accept 'we checked 100%' unless the factory can show a real record. A random sample is often more honest than a factory-led tour of the best cartons.
Factory audit or product inspection?
A factory audit checks the supplier, not the shipment. It looks at the building, equipment, staff, QC records, licenses, export history, and whether the factory can make your product at a steady level. A product inspection checks the goods. New suppliers and high-value orders often need both. If you already have a long relationship and the product is simple, a PSI may be enough. Do not use a factory audit as a substitute for checking the actual goods.
Choose an inspector who knows your product
A generic inspector can count cartons and take photos, but category experience matters. A furniture inspector should understand joints and finish. An electronics inspector should understand voltage, plugs, and basic function tests. A textile inspector should understand stitching, color shading, and labeling. Ask for a sample report in your category. Check whether the inspector uses calibrated tools, writes defect descriptions, and charges by man-day. Confirm that the inspector is not paid by the supplier. Third-party firms such as SGS, Bureau Veritas, Intertek, and QIMA are well known; local teams can be more flexible and cost less, but you should check their experience and reporting quality.
Put this in the inspection request
- Product spec and approved sample photos
- SKU list, quantities, and carton packing list
- AQL levels and sampling standard
- Measurements and function tests
- Label, barcode, warning, and language requirements
- Carton dimensions, weight, drop test, and shipping marks
- Photos you need: product, defects, labels, cartons, loading area
- Report language and deadline
A clear request avoids the classic problem where the inspector checks the wrong version of the product.
Costs and timing to expect
Inspection costs vary by city, product, and scope. A local inspector often costs around USD 150–350 per man-day, plus travel. Larger third-party firms may charge USD 300–600 or more per man-day. Lab tests can run from USD 100 to several hundred per test, depending on the standard. Container loading supervision is usually a shorter job, but travel can add cost. Book ahead, especially before Chinese New Year, Golden Week, and peak shipping season. A report usually comes back within 24–48 hours, but do not assume that unless it is agreed.
Red flags in inspection reports
- No sample size, AQL, or accept/reject numbers
- Only close-up product photos with no carton or warehouse context
- Defects described as 'minor' with no measurement or photo
- The same photo used for different cartons
- No barcode scan results or label photos
- A 'passed' result when the carton count does not match the packing list
- Inspector cannot name the test equipment or method
If the inspection fails
Do not ship. Ask for the defect list and photos, then agree a written rework plan with the supplier. For small defects, sorting or a second inspection may work. For major defects, rework the failed lot and reinspect. Keep the balance payment and shipping booking separate from the inspection result. If the supplier fails the same point twice, consider a backup supplier or a different production batch. A failed inspection is useful information, not a crisis, as long as you find it before the container leaves.
What a local team changes
Language and distance are the practical problems. A local team can help write the spec in Chinese, check the factory before you pay a deposit, book the inspection, review the report, push rework, and follow the loading photos. That does not replace a proper inspection report, but it closes the gap between a report and a supplier who agrees to fix something. Globesino works as a China business concierge for overseas buyers who need sourcing, factory checks, inspection coordination, and delivery follow-up. If you want one local contact to manage the inspection and shipping steps, we can help.