EXERCISE
2.
The four processing variables that must be controlled are ___________, ___________,
____ _ _ _ _ _ _ _, and ___________.
3.
The processing variable which is most difficult to control is (circle one)
a.
b.
solution strength.
c.
time.
d.
temperature.
3-3.
THE PURPOSE SERVED BY A PROCESS CONTROL CHART
The purpose of a process control chart is to graphically display the performance of the process.
Though the term "control chart" is a misnomer (since a graph can control nothing), it does, however,
provide as easily interpreted pictorial representation of what has occurred and when it occurred. As data
is collected and plotted on the control chart, a graphic history is obtained. An acceptable standard is
established from which any variation can easily be detected.
EXERCISE
4.
An accurate graphic representation of the process performance is provided by a ___________
____ _ _ _ _ _ _ _ ___________ (complete statement)
3-4.
HOW FACTORS PLOTTED ON A PROCESS CONTROL CHART ARE USED TO
MONITOR REPLENISHMENT.
An accurate graphic representation for monitoring the processing solution strength is achieved by
means of a process control chart.
(1)
In order to make use of a process control chart, you must first produce a sensistrip.
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