Meaning
Quality assurance procedures evaluate sampled units from a completed production batch to determine whether the entire quantity satisfies contractual defect limits. Lot acceptance relies on statistical sampling plans where specific acceptance and rejection numbers govern batch delivery approval. Commercial supply contracts define acceptable quality limits that bind contract manufacturers to strict defect thresholds.
Rejection of a sampled batch forces full sorting or complete scrap of the production run.
Sampling Protocol
Statistical quality control tables establish required sample sizes based on total batch quantity and designated inspection rigor. Performing lot acceptance involves inspecting selected units for visual defects, dimensional accuracy, and functional performance. If defective components in the sample equal or exceed designated rejection numbers, receiving teams quarantine the entire batch.
Approved lots pass directly into assembly inventory without further unit testing.
Contractual Consequence
Supply agreements detail economic financial remedies when delivered component batches fail inspection protocols. Failed lot acceptance triggers formal corrective action requests requiring suppliers to root-cause production failures. Re-inspection of sorted lots incurs administrative charges payable by the component manufacturer.
Continuous batch rejections authorize buyers to terminate supply agreements for default.
Documentation Record
Inspection logs record sample results, defect classifications, and disposition decisions for every incoming delivery. Certificates of conformance validate batch testing prior to physical shipment. Historical quality records determine future supplier sampling frequencies.
