Frontiers in Statistical Quality Control 8

Front Cover
Hans-Joachim Lenz, Peter-Theodor Wilrich
Springer Science & Business Media, Aug 8, 2006 - Mathematics - 351 pages
In Canada, acceptance sampling has been used in legal metrology applications for nearly four decades. One of its principal uses has been in the quality control of utility meters that measure electricity or natural gas supplied to consumers. By law, such meters must be inspected for conformance to specification requirements prior to use and be periodically inspected while huse. With few exceptions, due to the numerous utility companies in the country and their varied practices, the meters exist in the form of isolated lots for inspection purposes. The proportion of nonconforming meters in a lot has traditionally defined lot quality for utility meter sampling inspection purposes. Another principal application of acceptance sampling has been in the quality control of the net contents of packaged products sold in the marketplace. Such products include those sold on the basis of such measures as weight, volume, length, and area. In this particular application, products are also usually inspected on an isolated-lot basis for regulatory purposes. However, lot quality is usually measured on the basis of two criteria for such products: the proportion of nonc- forming packages in the lot and the lot mean quantity. This section reviews Canadian quality control practices in these two areas of application, highlighting some of the deficiencies and issues. Three-class s- pling plans are proposed as a possible solution to some of these deficiencies and issues.
 

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Contents

How Some ISO Standards Complicate Quality Improvement
3
A Review with Applications
34
The Art of Evaluating Monitoring Schemes
74
Misleading Signals in Joint Schemes for u and
100
The Fréchet Control Charts
123
Reconsidering Control Charts in Japan
136
Control Charts for the Number of Children Injured in Traffic Accidents
151
A New Perspective on the Fundamental Concept of Rational Subgroups
172
Choice of Control Interval for Controlling Assembly Processes
199
Robust OnLine Turning Point Detection The Influence of Turning Point
223
Specification Setting for Drugs in the Pharmaceutical Industry
249
Monitoring a Sequencing Batch Reactor for the Treatment of Wastewater by
263
Data Mining and Statistical Control A Review and Some Links
284
Optimal Process Calibration under Nonsymmetric Loss Function
309
The Probability of the Occurrence of Negative Estimates in the Variance Components
322
An Overview of Composite Designs Run as SplitPlots
342

Economic Advantages of CUSUM Control Charts for Variables
185

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