GlossaryEN1 min readUpdated: Jun 22, 2026
Acceptable Quality Level Logistics
A freight operator receives 1,000 cartons, samples 125 units, and finds 3 damaged – whether that triggers full batch rejection depends on the pre-agreed AQL level.
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Source: https://www.iso.org/standard/73272.html
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Logistics Concept
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Definition & Explanation
A freight operator receives 1,000 cartons, samples 125 units, and finds 3 damaged – whether that triggers full batch rejection depends on the pre-agreed AQL level. Acceptable Quality Level (AQL) is a statistical sampling inspection method that defines the maximum number of defective units permitted per sample for a given lot size. Standards such as ISO 2859 and ANSI/ASQ Z1.4 govern sample sizes along with the corresponding acceptance and rejection thresholds. In freight and procurement operations, AQL allows consignees to screen large shipments cost-effectively without inspecting every single unit. Crucially, AQL is not a zero-defect standard: shipper and receiver agree contractually – typically in quality assurance agreements or purchasing terms – on a statistically acceptable defect margin.
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