AQL inspection explained for first-time importers

The first time a buyer sees “AQL 2.5” on a quotation, it usually goes unquestioned. It is worth understanding, because it is the mechanism that decides whether you can reject a shipment — and because booking the inspection at the wrong moment makes it useless.

What AQL actually is

Acceptable Quality Limit. It is a sampling standard: rather than checking every garment, an inspector examines a statistically determined sample from the finished lot and applies accept/reject numbers to what they find.

Two consequences people miss:

• It is not a guarantee of zero defects. It is an agreed threshold for how many are tolerable in a production run. Every bulk apparel order contains some defective garments; the question is how many.
• The sample size does not scale linearly. A 10,000-piece order is not inspected ten times as hard as a 1,000-piece one. Sample sizes come from a table, and they rise much more slowly than the lot size.

The three defect classes

Class	Meaning	Typical treatment
Critical	Unsafe or unusable — a needle left in a garment, a safety failure	Zero tolerance
Major	Would likely cause a customer to return or refuse the item — a hole, a broken seam, badly off-shade	The number that usually matters
Minor	Noticeable but unlikely to affect sale or use — a small loose thread, a slightly uneven hem	Most tolerant number

AQL 2.5 for majors is the common commercial standard in apparel, often paired with a tighter number for critical defects and a looser one for minors. Higher-end retail programmes sometimes specify tighter; promotional goods sometimes looser.

Agree the numbers before production, not after inspection. The moment to negotiate an acceptable defect rate is not the moment you are looking at the report.

What the inspector actually does

A pre-shipment inspection typically covers more than defects:

• Quantity — is the full ordered quantity packed and present
• Workmanship — the defect count against the agreed AQL
• Measurements — garments measured against your size chart and tolerance table
• Shade — checked against the approved lab dip or sealed sample
• Labelling and packing — care labels, hang tags, barcodes, polybags, carton marking
• Function — zips, poppers, drawcords where applicable

The measurement check is the one that catches most first-time importers, and it only works if you supplied a size chart with tolerances. “It should match the sample” is not something an inspector can measure against. The same is true of decoration: an inspector can only assess a print against a wash-tested approved sample, which is one reason choosing the decoration method deliberately matters before bulk rather than after.

When to book it

Before the container is sealed. This is the whole point.

The commercially useful sequence:

1. Production completes and goods are packed but not shipped
2. Inspection happens at the factory
3. Report issued, you accept or require rework
4. Container loads

Book it after the goods have shipped and you have a report describing a problem you can no longer do anything about. Your leverage exists only while the goods are still in the factory.

For a larger or first order, a during-production inspection at roughly 20–30% completion is worth the extra cost. It catches a systemic problem — wrong trim, wrong measurement, wrong shade — while there is still time to correct it, rather than after 5,000 pieces have been made wrong.

Who does it

SGS, Bureau Veritas and Intertek are the large international agencies, and there are several smaller Indian agencies operating in the Tirupur cluster. Cost is modest next to the value of an apparel shipment.

You can also send your own QA person, or appoint a buying agent to inspect on your behalf. All are normal.

What the factory’s reaction tells you

This is the part worth paying attention to.

A factory treats a third-party inspection as ordinary procurement practice, because it is. They will give the inspector access, at any production stage.

A supplier who becomes defensive about it, or who wants to schedule it for a specific day well in advance, or who suggests it is unnecessary because of their own quality systems, has told you something more useful than any inspection report would have.

The inspection report also gives you a number the factory will never volunteer: what the actual defect rate was, rather than what you were told it was. The wider set of checks worth running on a supplier covers the rest.

What to agree in writing before production

1. The AQL levels — critical, major, minor
2. Who inspects, and who pays
3. The size chart with tolerances
4. The approved shade reference, and what it is matched against
5. What happens on a fail: rework, discount, or rejection, and who bears the cost and the delay

The last line is the one that gets skipped and the one that matters when it goes wrong.

---

We run inline checks at cutting and stitching and a final AQL inspection before packing, and third-party inspectors are welcome in our unit at any production stage. If you would rather verify than take our word for it, that is the correct instinct — start with a small order and inspect it, or tell us what you are making and we will arrange access for whoever you appoint. The wider sourcing guide covers where this sits in the process.