ISO 2859-1 (AQL Standard)
Understand ISO 2859-1 and how it applies to industrial sampling and inspection decisions.
ISO 2859-1 is the global standard for acceptance sampling by attributes and the foundation of AQL tables.
Standard in practice
Most inspection firms use ISO 2859-1 as the baseline for sample sizes and acceptance numbers.
Buyer alignment
Aligning on the same standard avoids disputes over pass/fail calls.
Step-by-step
- - Identify the inspection level that matches risk.
- - Choose AQL limits for critical, major, and minor defects.
- - Apply the acceptance numbers to your inspection results.
Checklist preview
- - ISO 2859-1 table reference
- - Signed-off defect classification
- - Clear escalation path for borderline results
Key takeaways
- - ISO 2859-1 reduces ambiguity in pass/fail decisions.
- - Defect classification drives the acceptance numbers.