Yiwu Product Inspection Guide: What to Check Before Shipping
A supplier saying that production is finished does not tell you whether the quantity, colors, functions, packaging and carton marks are correct. The useful moment to inspect is before the balance payment and before the goods enter an irreversible shipping process.
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Overview
Inspection is not a generic look at a few open cartons. It needs a reference standard, a defined sample, recorded results and a decision rule for defects. Product-specific safety and laboratory compliance remain separate work and cannot be proven by a visual inspection alone.
Quick answer
What should a Yiwu buyer inspect before goods are shipped?
Confirm that production is sufficiently complete, select cartons from different parts of the batch, reconcile quantity and SKU counts, and compare sampled units with the approved specification. Check workmanship, dimensions, function, color, labels, unit packaging, master cartons and shipping marks. Record defects with photos and quantities, then require correction or reinspection before approving shipment.
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This article is a supporting guide. Start with these in-depth resources for the full picture.
Choose the inspection point by the risk you need to control
| Check | Best timing | What it can reveal |
|---|---|---|
| Sample approval | Before bulk production | Whether the agreed product standard is clear |
| During-production check | After production has started | Early material, color, construction or process errors |
| Pre-shipment inspection | When the order is finished and packed | Quantity, workmanship, function, packaging and carton issues |
| Container loading check | During loading | Carton count, loading condition and container handling |
How to apply this
- Prepare the reference pack — Use the approved sample, signed specification, artwork, color reference, packaging instructions, purchase order and defect rules.
- Confirm production status — A pre-shipment inspection is most useful when the order is substantially complete and enough goods are packed to test the real shipment condition.
- Select cartons across the batch — Do not inspect only cartons placed beside the door. Samples should come from different stacks, SKU groups and production lots where possible.
- Reconcile quantity — Compare finished and packed quantities by SKU, color and size with the purchase order. Record shortages, excess and mixed cartons.
- Check product identity and measurements — Verify model, material, dimensions, weight, color, print, accessories and any agreed tolerances using suitable measuring tools.
- Test function and workmanship — Operate the product as a customer would. Look for breakage, sharp edges, loose parts, stains, weak seams, poor finish, odor, incorrect assembly or inconsistent performance as relevant.
- Inspect retail packaging and labels — Confirm barcode, warnings, language, country-of-origin marks, inserts, sealing and protection. Requirements depend on product and destination market.
- Inspect master cartons — Check carton strength, assortment, quantity, dimensions, gross weight, shipping marks and whether inner protection is adequate for the chosen freight route.
- Write a decision, not only a photo report — State sampled quantity, defect counts, unresolved issues and whether the result is accepted, rejected or held for correction and reinspection.
Watch-outs
Mistakes to avoid
- Inspecting without an approved sample or written specification.
- Allowing the supplier to choose every unit and carton shown to the inspector.
- Checking appearance but not function, accessories, labels or carton assortment.
- Assuming a visual inspection proves regulatory compliance or laboratory performance.
- Paying the full balance before serious defects are corrected and verified.
- Accepting a vague promise to fix issues after shipment.
If You Want Help
Recommended next move
Define the inspection standard when the order is placed, not when production finishes. Keep the balance-payment trigger, inspection timing and correction process in writing. For a small low-risk order, a focused documented check may be proportionate; for higher-value, customized, safety-sensitive or repeat orders, use an independent or clearly accountable inspection process suited to the product.
Frequently asked questions
- When should a pre-shipment inspection happen?
- Arrange it when production is substantially complete and goods are packed, but before final payment and shipment approval. If the order has high process risk, add an earlier during-production check instead of waiting for the end.
- How many products should be inspected?
- There is no useful universal piece count. The sample should reflect the order size, number of SKUs and risk. Professional inspections commonly use an agreed statistical sampling plan, while very small orders may justify a broader or even full check.
- What happens if an inspection fails?
- Put the affected SKU, defect, quantity and required correction in writing. Hold shipment approval, agree on sorting, rework, replacement or a commercial remedy, and reinspect material corrections before releasing the balance where your contract allows.
- Does product inspection replace compliance testing?
- No. Visual and functional inspection can verify the physical shipment against the order, but it does not replace required laboratory tests, certificates, registrations or destination-country compliance work.
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