Quality control
China Product Sample and Inspection Checklist for Buyers
Use this China product sample and inspection checklist to document product details, quality checkpoints and packaging needs before sourcing review.
An inspection is only as useful as the question it is designed to answer. “Check quality” does not identify the approved product version, measurable requirements, defect categories, sample plan or evidence the buyer needs. A good brief turns the current order documents into observable checkpoints and makes open decisions visible before an inspector arrives. It also states what the inspection cannot establish from a limited sample.
1. Freeze the product and order version being inspected
List the supplier, purchase order, buyer SKU, supplier model, variations and quantity by variation. Attach the current drawings, approved artwork, packing requirements and dated reference photos. If a physical approved sample exists, identify where it is and whether the inspector can access it. Do not ask an inspector to infer the approved version from a live marketplace page.
Build the checkpoints from the active product specification sheet, not from several conflicting chat threads. Mark superseded files clearly. If a measurement or material has not been agreed, label it as open rather than inventing a pass/fail value. The inspection brief should reveal missing decisions early enough for the buyer and supplier to resolve them.
- Order and product identifiers, with variation quantities
- Current specification, drawing and artwork version numbers
- Approved sample or reference status
- Packing configuration and carton-mark version
- Known changes since the sample or previous order
2. Translate expectations into observable checkpoints
Write what the inspector should observe, measure, count or demonstrate. Replace 'good finish' with defined review points such as coating coverage, agreed colour reference, sharp edges, visible contamination or specified surface areas. Replace 'correct size' with named dimensions, units, tolerances, measurement method and the tool to use.
Use lessons from sample feedback and earlier deliveries to prioritize the checks that matter to this batch. If an accessory was previously missing, state the required accessory, quantity per retail unit and where it should be packed. If a component changed, identify the affected fit or function check. Keep cosmetic, dimensional, functional, packing and quantity checks in separate rows so results remain clear.
3. Define defect categories for this product
A defect list should describe concrete examples and how the buyer classifies them for this inspection. Critical, major and minor labels are not self-explanatory across every product. State what outcome or departure makes each example relevant, and review the classification with the inspection provider before the visit. Avoid copying a generic defect list that does not match the product.
Safety, regulatory and performance questions need a suitable verification method beyond a visual check where applicable. Connect the inspection brief to the product compliance brief and identify which documents, laboratory reports, markings or construction details are to be reviewed. A pre-shipment inspection should not be presented as legal certification or as proof of every unit's compliance.
4. Agree the sampling plan instead of writing only “AQL”
State the lot size, inspection stage, sampling standard or agreed method, inspection level and AQL values where an acceptance-sampling plan is appropriate. ISO describes ISO 2859-1:2026 as a system of AQL-indexed sampling schemes for lot-by-lot inspection by attributes. The standard was updated in 2026, so confirm which edition and plan the inspection provider will use rather than relying on an old screenshot of a table.
A sampled inspection is not a 100% check and does not guarantee a defect-free shipment. AQL is not a promise that a stated percentage of defective goods is acceptable in every commercial situation. Ask the provider to show the calculated sample size and acceptance/rejection numbers for the agreed lot and plan. For high-consequence characteristics, discuss whether a different control, specialist test or full check is needed.
5. Plan timing, access and decision ownership
Confirm the inspection date only after the supplier states what percentage of goods is finished and packed, where the goods are located and what access is available. Tell the provider whether cartons can be opened, whether destructive tests are permitted and whether replacement samples or tools are available. Record who pays for reinspection if the lot is not ready or the result requires another visit.
Use the production readiness checklist to keep approval status, open changes and timing dependencies visible. Name the person who can answer questions during the inspection and the buyer who will review the report. The inspector should report evidence against the brief; the commercial decision to accept, hold, rework, re-inspect or seek specialist advice remains with the buyer under the agreed process.
6. Request evidence that can be reviewed remotely
Ask for an itemized report that identifies the lot, sampled quantities, result for every checkpoint, defect counts by category, measurement records and clear photographs. Include overview photos, selected cartons, labels, packaging layers, accessories, measuring-tool displays and examples of defects found. Require the report to distinguish observed facts from supplier explanations and inspector comments.
Attach your current brief when submitting a sourcing request, along with the product link, quantity, destination and the risks you want discussed. China Sourcing Team can review the sourcing context and help define a suitable next step; sourcing support starts from US$1,000 and scope is confirmed after review. Specialist testing, certification or inspection services should be agreed separately where the product requires them.
Sources and further reading
Service-specific information checked on 2026-09-21. Confirm the terms for your shipment with the selected provider.
Ready to organize a product?
Use the China sourcing request form for one item, review the completed sourcing brief example, or read about the guided Chrome helper for a multi-product project. Sourcing support starts from US$1,000 and is subject to scope review.
