Pre-Shipment Inspection in China – AQL 2.5 QC Service

A pre-shipment inspection is the last point at which a quality problem is still cheap to fix. After the container is sealed, the same problem becomes a claim, a return, a bad review or a conversation about who said what. This page is written for a buyer who has already found a supplier and wants to know what an inspection can and cannot establish, what a report must contain to be useful, and how the result connects to the decision to release a shipment.

We are a China sourcing agent and freight forwarder, not a certification body, a testing laboratory or a legal adviser. We coordinate and witness inspections, put the findings in writing, and keep the evidence attached to the shipment it belongs to. That distinction is the whole subject of this page: most disputes about inspection are not about whether someone looked at the goods, but about what the person was actually asked to conclude.

Five things that are routinely confused

Requests arrive phrased as “please check the factory and certify the goods”. Those are several different jobs with different outputs. Treating them as one is how a buyer ends up with a photograph when they needed a test report.

Activity	Question it answers	What it cannot establish
Factory verification	Is this a real business with the equipment and capacity to make the product?	Whether this particular batch is any good
Pre-shipment inspection	Does this finished batch conform to the approved sample and written specification?	Whether the product meets a destination market’s legal requirements
Laboratory testing	Does the material or product pass a defined test method?	Whether the rest of the batch was built the same way
Certification and market approval	May this product be sold in a named market?	Anything about the condition of your shipment
Warehouse receiving check	How many cartons arrived and are they visibly intact?	What is inside a sealed carton

A clean inspection report is therefore not a market approval, and a certificate is not evidence that a batch matches your sample. Where a destination requires testing or a local registration, we will tell you early and in writing; the determination itself belongs to a qualified laboratory, a licensed broker or a local adviser. Our factory verification service covers the first row, and this page covers the second.

What an inspection is actually based on

An inspection compares goods against a reference. Without a reference, the result is an opinion. Three documents should exist before anyone visits the factory: a written specification that states materials, dimensions, colour, finish, function, packaging and labelling; a physical approved sample that is signed, dated and retained by the buyer, the agent and the factory; and an agreed sampling plan with a defect classification. When a claim later concerns colour, hardness or wall thickness, the countersigned sample is the difference between a discussion and a decision.

For a new product, we normally recommend that the reference be settled during sampling rather than at the end of production. Our guide to low-minimum sourcing explains how a small first order is used to fix the specification before a batch is released.

Sampling, and the honest limit of sampling

Most inspections use acceptance sampling: a defined number of units drawn from a batch, checked against a defined list of characteristics, with defects classed as critical, major or minor and an agreed acceptance level for each. Sampling is economical and it is the right default for a stable process. It is also a statistical statement, not a promise about every unit. A pass means the sample gave no reason to reject the batch at the agreed level; it does not mean zero defects exist.

Three situations call for a different approach. Safety-critical or high-value items may justify unit-by-unit checking. A supplier with no track record may justify an in-production check as well as a final one, because a drift caught early is still fixable. A product whose failure is invisible from the outside may need a functional test or a laboratory method, which is a different service. We state the chosen level as a separate line in the quotation so that a sampling check is never quietly presented as a full check.

When to inspect

Point in the run	What it catches	When it is worth adding
During production	Tooling drift, wrong material, incorrect setup, subcontracted work	First runs with a new factory, or a new tooling platform
Pre-shipment, goods packed	Quantity, workmanship, finish, function, packaging, barcodes, carton marks	The default for almost every order
Loading supervision	Short-shipped cartons, mixed SKUs, damage during stuffing	Consolidated or multi-supplier shipments
Unit-by-unit	Defects that sampling would probably miss	Safety-critical, very high value, or a supplier under review

Experienced importers run an in-production check plus a pre-shipment check on the first one or two orders, then reduce to pre-shipment alone once a supplier has shown a stable process. We do not set that threshold for you. It depends on your product, your defect cost and what a late shipment does to your selling season.

What a usable report contains

A report that says “checked, OK” is not evidence. Before a batch is released you should hold the inspection date and location, the exact batch or serial range covered, the sampling plan and sample size, the specification and sample reference used, a defect list with classification and counts, photographs of the sample, the packaging and the cartons, a clear result – pass, fail, or pass with deviation – and the name of the person who carried out the check. Where a deviation is accepted, the report should say which party accepted it and on what basis.

This matters beyond quality. A dated photographic record tied to a serial range is what makes an insurance claim, a carrier claim or a supplier discussion resolvable weeks later. If the goods from several workshops are combined into one shipment, the same record supports the intake reconciliation described in our consolidation guide.

What happens when the result is not a pass

The most valuable part of an inspection is the decision that follows a failure, and that decision belongs to you. We isolate the affected goods, send the report and wait for an instruction. The realistic options are rework at the factory and re-inspection, a concession with a written deviation, sorting and shipping only the approved units, a return to the supplier, or rejecting the batch. Each has a different cost and a different effect on your shipping schedule, and none should be chosen on your behalf by the party that quoted the original order.

Chargeable rework starts only after your approval. A silent repair is worse than a visible defect, because it hides a process problem that will reappear on the next order. If the same defect recurs across two runs, the conversation should move upstream to the tooling or the specification – the same logic we apply in our packaging approval process, where artwork errors are fixed at the file rather than on the carton.

Inspection versus preparation versus compliance

Three questions are often asked as one. Does the batch match the approved sample – that is inspection. Are the units and cartons ready to be received by a fulfilment centre – that is preparation, involving label scanning, poly-bag warnings and carton manifests. Is the product legal to sell in the destination – that is your compliance determination. A warehouse can answer the second and a laboratory can support the third, but neither substitutes for the first.

We keep these as separate lines in a quotation because the evidence is different. When a buyer asks for “QC” without a definition, we ask which question they need answered before we scope the work. Our sourcing agent guide explains how the same separation is applied to fees, and our landed cost breakdown shows where inspection sits among the other lines of a shipment.

What a written quotation contains

We do not print inspection prices on a public page. The scope depends on product complexity, the number of characteristics to check, sample size, location, whether travel is involved, the number of suppliers and whether a re-inspection is likely. A number here would be wrong for your shipment. What we commit to in writing is the structure: the inspection level, the checklist derived from your specification, the reference sample, the defect classification, the report format, the exception process and the basis on which any re-inspection is charged.

Line	What must be stated	Why it matters
Scope and standard	Sampling or full check, and the agreed acceptance level	Prevents a pass being read as a zero-defect promise
Checklist	The characteristics checked, derived from your specification	An unlisted characteristic is not inspected
Reference	Which signed sample and which revision of the spec applies	Removes ambiguity about colour, finish and tolerance
Batch identification	Serial or batch range covered	Links the report to the goods actually shipped
Deliverable	Report contents, photograph set, timing of issue	Makes the result usable as evidence
Exception path	Who authorises rework, and the basis of a re-check	Keeps the decision with you
Exclusions	Testing, certification and legal determination	Stops a report being used for a purpose it cannot serve

Where our responsibility stops

We can put a competent, documented check between your deposit and your shipment. We cannot issue a market approval, replace a laboratory test method, or tell you that a destination registration is unnecessary. We will not describe a sampled batch as defect-free, describe a compatible or unbranded product as an original branded part, or release goods after a failed inspection without your written instruction. We also will not quote a completion window before the specification, the sample and the production status are known. Saying no to those things is what makes a pass meaningful.

How this connects to the rest of the chain

Inspection is one stage, not an isolated purchase. For a first-time importer it usually follows factory verification and precedes packing and freight. For a private-label programme it protects the artwork and finish decisions described in our private label guide. For a seller testing single orders before a batch, the same reference sample is what keeps the two phases consistent on our dropshipping agent page. The full service list shows the sequence, and the FAQ covers the ordering questions that come up first.

What to send us for a quotation

The written specification, a photograph or the physical approved sample, the product and quantity, the factory location and production status, the batch range if known, the destination market, the defect types that matter most to you, and any test reports or certificates already held. If you do not yet have a specification, say so – building one from a sample is a separate, useful first step. A partial list is enough to start.

Frequently Asked Questions

Is a pre-shipment inspection the same as factory verification?

No. Verification asks whether the supplier is a real, capable business. Inspection asks whether a specific finished batch matches the approved sample. A strong supplier can still produce a weak batch, and a clean batch says little about a supplier’s long-term capability.

Does a passed report mean every unit is defect-free?

No. An acceptance-sampling result is a statistical conclusion at an agreed level, not a claim about every unit. Where that risk is unacceptable, we agree a unit-by-unit check and state it as a separate line in the quote.

Can the inspection report be used for customs or product compliance?

No. It documents the condition of a batch against a commercial specification. Market approval, laboratory testing and classification are separate matters for a qualified laboratory, a licensed broker or a local adviser.

What happens if the batch fails?

We isolate the goods, issue the report and wait for your instruction. Options include rework and re-inspection, a written concession, shipping only approved units, a supplier return or rejection. Chargeable rework begins only after you approve it.

Can you inspect goods from a supplier we already use?

Yes. We can inspect a batch from your existing factory without taking over the commercial relationship, provided we have a specification and an agreed reference sample to check against.

When should we add an in-production check?

For a new supplier, new tooling, or any product where a process drift would be expensive to reverse. It finds the problem while the run can still be corrected; a final check finds it when the goods are already packed.

Do you keep the approved sample?

The reference sample should be signed, dated and retained by the buyer, the agent and the factory. That three-way record is what turns a subjective complaint into a decision on a reorder.

If you have read this far, you probably have a batch at a specific stage. Send us the specification or a sample, the factory and the production status, and we will come back with the inspection level we recommend, the checklist we would use, and the questions that still need your answer before a quote can be issued. Use the quote form, or use the WhatsApp buttons on this page.

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