Inspection Level
Meaning ~ The statistical parameter in acceptance sampling that dictates the sample size of a batch of goods based on the total lot quantity and chosen severity.
Defect Category
Meaning
Quality assurance frameworks organize product non-conformities into distinct classes based on their potential impact on safety and function. Each specific defect category determines how a discovered flaw affects the overall shipment approval. These categories are typically split into critical, major, and minor non-conformities.
Severity Classification
Visual and functional flaws are evaluated differently depending on which defect category they fall under. A minor scratch on the underside of a metal bracket is categorized differently from a structural crack in the weld. Buyers and suppliers must agree on these classifications before production begins to prevent disputes during final inspections.
Rejection Protocol
Sampling plans assign different acceptable quality limits to each defect category. A single critical defect, such as a sharp edge on a children’s toy, will cause the entire shipment to fail. Major defects have a slightly higher threshold but still trigger a reject decision if the count exceeds the allowed limit.
Supplier Dispute
Disagreements often arise when a factory claims a defect is minor while the buyer’s inspector classifies it as major. Defining the defect category with clear reference photographs in the product specification sheet is the only way to avoid these arguments. When the supplier must rework a batch because of a high defect rate, the agreed classification documents protect the buyer from paying for the extra labor and transport costs.