How it works

The quality control & inspection workflow.

An AQL value is one input to an acceptance-sampling plan; it is not a statement that the sample may contain that percentage of defects. The lot size, inspection level and AQL determine a code letter, sample size and acceptance/rejection numbers under the selected plan.

Define critical, major and minor defects before inspection. Programs with higher functional or cosmetic risk may require a tighter AQL, a larger inspection level, specific measurements, functional tests or a buyer-appointed inspection provider.

Process

Step by step.

01 / Incoming material checks

List the material identity, dimensions, color references and packaging inputs that must be verified before use.

02 / In-process checkpoints

Place checks after the production stages where defects are easiest to detect and correct before further processing.

03 / Pre-shipment sampling

When ISO 2859-1 sampling is requested, the order states the lot size, inspection level, AQL values and defect classes.

04 / Buyer-appointed inspection (optional)

An independent inspection provider can be coordinated at the buyer’s request; scope and fees are confirmed directly for the order.

05 / Inspection evidence

The agreed report format can include sample counts, measurements, defect findings and photos before dispatch.

Specs

Key details.

Sampling framework: ISO 2859-1 can be specified with the inspection level, code letter, sample size and Ac/Re numbers written into the order
Example only: A 1,000-piece lot at General Level II normally maps to code letter J and an 80-piece sample; the agreed plan controls
Possible checks: Dimensions, color reference, plating appearance, coating adhesion, attachment function, count and packaging condition
Buyer-appointed inspection: Can be coordinated with the inspection provider named in the purchase order
Defect categories: Plating peeling, enamel chipping, color mismatch, dimensional out-of-spec, attachment weakness, packaging damage