ISO 7870-8:2017 控制图 第8部分：短时间运行和小批量混合制图技术

标准编号：ISO 7870-8:2017

中文名称：控制图 第8部分：短时间运行和小批量混合制图技术

英文名称：Control charts — Part 8: Charting techniques for short runs and small mixed batches

发布日期：2017-04

标准范围

This document describes ways of applying regular variables control charts to short runs and small mixed batches where the sample size for monitoring is restricted to one. It provides a set of tools to facilitate the understanding of sources of variation in such processes so that the processes can be better managed.

The charts described are process-focused rather than product-focused. The user can plot, monitor and control similar characteristics on different items, or different characteristics on an item, on a single control chart.

NOTE 1 The terms short run and small batch size are not well defined. Here, short run and small batch size are taken to mean only a few items are manufactured before a different item is then produced.

NOTE 2 For situations where the subgroup size is larger than one, other standards apply.

标准预览图