BS ISO 7870-1:2019 pdf free.Control charts.
3.1 control chart chart with control limits (3.2) on which some statistical measure of a series of samples is plotted in a particular order to steer the process with respect to that measure Note 1 to entry: The particular order is usually based on time or sample number order. Note 2 to entry: The control chart operates most effectively when the measure is a process variable which is correlated with an ultimate product or service characteristic. [SOURCE: ISO 3534-2:2006, 2.3.1, modified – added “with control limits” after “chart” in definition, deleted “and to control and reduce variation” after “to that measure”.]3.2 control limit statistical value defining an intended level of stability for a produced characteristic Note 1 to entry: One or two control limits are represented on the control chart. Note 2 to entry: The term “stability” is not meant only for a process in control but it can also be stability against a target value.  3.3 Shewhart control chart control chart (3.1) with Shewhart control limits (3.4) intended primarily to distinguish between the variation in the plotted measure due to random causes and that due to special causes [SOURCE: ISO 3534-2:2006, 2.3.2] 3.4 Shewhart control limit control limit (3.2] determined statistically from the variation of the process due to the random causes alone 3.5 acceptance control chart control chart (3.1) intended primarily to evaluate whether or not the plotted measure can be expected to satisfy specified tolerances [SOURCE: ISO 3534-2:2006, 2.3.3].3.6 process adjustment control chart control chart (3.1) which uses a prediction model of the process to estimate and plot the future course of the process if no change is made, and to quantify the change to be made to keep the process deviations within acceptable limits [SOURCE: ISO 3534-2:2006, 2.3.4] 3.7 variables control chart control chart (3.1) in which the measure plotted represents data on a continuous scale [SOURCE: ISO 3534-2:2006, 2.3.6, modified一deleted “Shewhart” before “control chart”.] 3.8 attributes control chart control chart (3.1) in which the measure plotted represents countable or categorized data [SOURCE: ISO 3534-2:2006, 2.3.7, modified – in the term, “attributes” used instead of “attribute’ ‘; in the definition, deleted ” Shewhart” before “control chart”.]BS ISO 7870-1 pdf download.