AQL Inspection China: Sampling & Defect Tolerance Guide for Importers | $169
AQL (Acceptable Quality Limit) is the standard that decides whether your shipment passes or fails. If you're importing from China, AQL 2.
AQL (Acceptable Quality Limit) is the standard that decides whether your shipment passes or fails. If you're importing from China, AQL 2.5 is what most buyers use — it means no more than 2.5% defective units per batch. Here's what that actually means for your FBA shipment.
What is AQL in product inspection?
AQL stands for Acceptable Quality Limit. It's the maximum number of defective units the buyer is willing to accept in a shipment. An AQL of 2.5 means: out of every 100 units inspected, up to 2.5 can be defective and the batch still passes. Anything above that? The whole shipment gets flagged.
In China inspection, AQL is not a suggestion. It's the contractual line between "good to ship" and "send back to factory."
How AQL sampling works in China factory inspections
Inspectors follow the AQL sampling table (ANSI/ASQ Z1.4 or ISO 2859). They don't check every unit — they randomly pick a sample size based on your batch size.
Here's the real breakdown:
| Batch size | Sample size (normal II) | Defects allowed at AQL 2.5 |
|---|---|---|
| 51-90 | 13 | 1 |
| 91-150 | 20 | 1 |
| 151-280 | 32 | 2 |
| 281-500 | 50 | 3 |
| 501-1,200 | 80 | 5 |
| 1,201-3,200 | 125 | 7 |
| 3,201-10,000 | 200 | 10 |
| 10,001-35,000 | 315 | 14 |
If your batch is 500 units, the inspector checks 50. If more than 3 have defects, the entire batch fails. No negotiation.
What AQL level should FBA importers use?
Different products need different AQL levels. Here's the rule of thumb:
| Product type | Recommended AQL | Why |
|---|---|---|
| Consumer electronics | 1.0 | Safety-critical, high return rates |
| Clothing & textiles | 2.5 | Size/color defects common, moderate tolerance |
| Toys | 1.0 | Sellability sensitive, ASTM F963 compliance needed |
| Household goods | 2.5 | Standard tolerance, visual defects acceptable |
| Automotive parts | 0.65 | Safety-critical, near-zero tolerance |
Most FBA sellers default to AQL 2.5. If you're selling electronics or toys on Amazon, bump it up to AQL 1.0 to reduce return rates.
Step 1: Choose your inspection standard
Tell your inspector which AQL standard you want. Normal Level II is standard for most China factory inspections. For very small batches or high-value items, use Level S-3 (reduced sample) or Level III (tightened sample).
Step 2: Separate defect types
ANSI AQL tables split defects into three categories. Each has its own allowable limit:
- Critical defects (AQL 0) — Safety hazards, regulatory violations. Zero tolerance. One critical defect = instant fail.
- Major defects (AQL 1.0–2.5) — Functional failures, wrong product, missing parts. These hurt sellability.
- Minor defects (AQL 4.0) — Cosmetic issues, small scratches, packaging wrinkles. Buyer decides tolerance.
Step 3: Read the inspection report
After inspection, you'll get a report with the actual defect count per category. Compare each against the AQL limit. If any category exceeds the limit, the batch fails. If all are under, you're clear to ship.
FAQ: AQL Inspection
What does AQL 2.5 mean in plain English?
It means up to 2.5% of the sample can have minor defects, and the batch still passes. For a real shipment of 500 units with 50 sampled, that's 3 defective units allowed in the sample.
Can I choose a stricter AQL?
Yes. AQL 1.0 means half the tolerance. Some Amazon categories require it. Your inspector will apply whatever AQL you specify in the contract.
Does AQL apply to all defect types?
No. Critical defects (safety, regulatory) are always zero tolerance. Only major and minor defects use the AQL table.
How much does AQL inspection cost in China?
From $169 per man-day. Most FBA shipments need 1-2 man-days depending on quantity. CloudSpects covers all major China manufacturing hubs.
What happens if my shipment fails AQL?
The factory sorts and reworks. Then you order a re-inspection (at half-rate from most providers). Only cleared goods ship.