ISO 7873:1993 算术平衡控制图的提示界限

标准编号：ISO 7873:1993

中文名称：算术平衡控制图的提示界限

英文名称：Control charts for arithmetic average with warning limits

发布日期：1993-12

标准范围

通过使用基于计算样本算术平均值的控制图，并使用警告限值和行动限值，指定过程统计控制的程序。假设对于大批量和批量生产，这种质量度量是服从正态分布的随机变量。然而，当绘制四个或四个以上项目的平均值时，出于控制目的，无需进行正态分布假设。

Specifies procedures for the statistical control of processes by using control charts based on calculating the arithmetic average of a sample and using warning limits and action limits. It is assumed that for large lots and for the mass output of piece and batch production, such a measure of quality is a random variable following a normal distribution. However, when averages of four or more items are plotted, this assumption of a normal distribution is not necessary for control purposes.

标准预览图