Muhandislik uchun bepul vosita
AQL namunaviy jadval
ISO 2859-1 namuna olish rejalarini qidiring. Partiya hajmi, tekshirish darajasi va AQL qiymatini kiriting — namuna hajmi, qabul qilish soni (Ac) va rad etish sonini (Re) oling.
Sampling Plan
AQL namuna olish jarayoni
1. Determine lot size → 2. Select inspection level (default: II) → 3. Find sample size code letter → 4. Look up Ac/Re numbers for your AQL value → 5. Inspect the sample → 6. If defectives ≤ Ac → Accept lot. If defectives ≥ Re → Reject lot.
Rule of thumb: II darajadagi AQL 2,5 ishlab chiqarishda eng ko'p qo'llaniladigan kombinatsiya hisoblanadi. U tekshirish xarajatlari va sifatni ta'minlash o'rtasida muvozanatni yaxshi saqlaydi.
Levels vs. severity: The inspection level (S-1…S-4, I, II, III) only selects the sample size code letter. Normal, tightened and reduced inspection are a separate concept — inspection severities applied through the switching rules of ISO 2859-1 (clause 9) based on recent lot acceptance history. This calculator gives single sampling plans for normal inspection (Table 2-A); the inspection level stays unchanged when severity switches.
Namuna hajmi kodli harflari (II daraja)
| Lot Size | Code | Sample Size |
|---|---|---|
| 2–8 | A | 2 |
| 9–15 | B | 3 |
| 16–25 | C | 5 |
| 26–50 | D | 8 |
| 51–90 | E | 13 |
| 91–150 | F | 20 |
| 151–280 | G | 32 |
| 281–500 | H | 50 |
| 501–1200 | J | 80 |
| 1201–3200 | K | 125 |
| 3201–10000 | L | 200 |
| 10001–35000 | M | 315 |
| 35001–150000 | N | 500 |
| 150001–500000 | P | 800 |
| 500001+ | Q | 1250 |
Sanoat o'lchov va sinovlari uchun professional sifat asboblari.
