Standard: ISO - FDIS 7870-8

CONTROL CHARTS - PART 8: CHARTING TECHNIQUES FOR SHORT RUNS AND SMALL MIXED BATCHES

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Scope:

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

Organization: International Organization for Standardization
Document Number: fdis 7870-8
Publish Date: 2016-11-28
Page Count: 38
Change Type: DRFT
Available Languages: EN
DOD Adopted: NO
ANSI Approved: NO
Most Recent Revision: YES
Current Version: YES
Status: Pending
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