⚙️ AQL complete suite ANSI/ASQ Z1.4 / ISO 2859-1
Single sampling (normal) · master table II-A · OC curves & sampling limits
sample code M
| AQL (%) → | Sample size (n) | Accept / Reject | quality inference |
|---|
⬇️ arrow means: use next lower code letter (larger sample).
📊 Operating characteristics
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| defect % | Pa (acceptance prob) |
|---|
⚖️ AQL / RQL / risks
| AQL (α risk) | 1.0% |
| LTPD (β risk) | — |
| Producer risk (α) | 0.05 |
| Consumer risk (β) | 0.10 |
| Lot size | S-1 | S-2 | S-3 | S-4 | I | II | III |
|---|
⚙️ normal II · lot 3500 → code M · n=315
↻ reset to normal/3500 · based on ANSI/ASQ Z1.4