Meaning
Quality control procedures in manufacturing operations mandate individual evaluation of every item in a produced lot when sample inspection yields unacceptable quality levels. Executing 100 percent sorting removes non-conforming units from a production batch prior to export clearance. Chinese manufacturing plants perform this full inspection following a failed initial acceptance sampling under GB/T 2828.1 standards.
The procedure applies exclusively to specific manufactured lots subject to quality disputes and does not replace standardized statistical quality assurance protocols across routine production runs.
Defect Segregation
Manual inspection lines isolate non-compliant items from passing units according to predefined technical thresholds. Factories deploy dedicated quality personnel to check each piece against dimensional or cosmetic specifications. Segregated defective units move immediately to designated quarantine zones to prevent accidental blending with approved stock.
Verified conforming units return to the packing line for final cartoning and sealing under auditor supervision.
Cost Allocation
Commercial purchase agreements in export trade determine financial responsibility for full lot screening based on fault attribution. When standard pre-shipment inspections fail, the supplier absorbs the labor expenditure and facility overhead required to re-examine the cargo. Overseas buyers frequently withhold final balance payments or issue debit notes until the factory presents a verified sorting report.
Chinese Contract Law enforces these cost shifts when supplier breach of quality specifications is established through formal inspection logs.
Operational Boundary
Full screening operations remain restricted to physical sorting and immediate defect removal without authorizing unapproved product modifications. The process stops once all units in the batch receive individual verification.