Plan acceptance sampling by lot size N and standard attribute plans.
| Item | Formula / Note | Source / Standard |
|---|---|---|
| Sampling standard | Counting sampling inspection | GB/T 2828.1-2012 |
| Acceptable quality limit | AQL levels 0.65/1.5/2.5 | GB/T 2828.1-2012 |
| Sample size code | Code letter by lot size and level | GB/T 2828.1-2012 Table |
| Operating characteristic | Acceptance probability vs defect rate | Sampling theory |
| Inspection level | General level II default | GB/T 2828.1-2012 |
| Risks | Producer risk α, consumer risk β | Sampling inspection |
质量验收抽样判定工具,基于计数标准型抽样检验原理,输入批量数 N、样本数 n、合格判定数 Ac、AQL 和实际发现不合格品数 d,通过二项分布计算接收概率、生产方风险和 LTPD,自动判定批次接收或拒收。纯前端处理,数据不上传。