ISO 7873:1993

Control charts for arithmetic average with warning limits
Autor: ISO
Código ICS: 03.120.30
No Vigente
$143.990

Alcance

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.

Especificaciones de la Norma
Fecha de Publicación 23/12/1993
Título Secundario Cartes de contrôle de la moyenne arithmétique à limites de surveillance
Páginas Técnicas 13
Idioma Inglés