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

ISO 7870-8:2017描述了将常规变量控制图应用于短期运行和小混合批次的方法，其中监测的样本量仅限于一个。它提供了一套工具来帮助理解这些过程中的变化源，以便更好地管理这些过程。所描述的图表以过程为中心，而不是以产品为中心。用户可以在单个控制图上绘制、监控和控制不同项目上的类似特征，或一个项目上的不同特征。注1短期和小批量的术语定义不明确。在这里，短期和小批量意味着在生产不同的产品之前，只生产少数产品。注2:对于子组大小大于一的情况，其他标准适用。

ISO 7870-8:2017 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