摘要
给出了对数正态过程控制图限、过程能力指数和相应不合格品率计算方法，用一实例作了说明，所得结果与正态情况进行了比较。
A method of control and evaluation is suggested for lognormal process.A numerial example is used for illustruction, and results are compared with ones of normal process.
关键词
对数正态分布
控制图
过程控制
评估
质量管理
the lognormal distribution
\ m-ρ control chart
\ process capability indices
