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ASTM D4583-21
Standard Practice for Carbon Black—Calculation of Process Indexes From an Analysis of Process Control Data
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NORM herausgegeben am 1.5.2021
Informationen über die Norm:
Bezeichnung normen: ASTM D4583-21
Ausgabedatum normen: 1.5.2021
SKU: NS-1025331
Zahl der Seiten: 4
Gewicht ca.: 12 g (0.03 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Kategorie - ähnliche Normen:
Die Annotation des Normtextes ASTM D4583-21 :
Keywords:
carbon black, Cp index, Cpk index, moving range, process capability, process capability from test data, process control,, ICS Number Code 83.040.20 (Rubber compounding ingredients)
Ergänzende Informationen
| Significance and Use | ||
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4.1?This practice will provide the following: (1) a statistical summary of individual production run data plotted on a control chart; (2) a statistical summary of data from multiple production runs; (3) a procedure to relate the average and variation of these data groups to specification limits, and (1.1?This practice covers (1) a statistical procedure for analyzing the test data generated in the statistical process control of a carbon black manufacturing process; (2) a format for reporting process capability determined from the analysis of control chart data of an individual production run, and (3) a format for reporting process performance determined from the analysis of control chart data of an individual production run. 1.2?This practice specifically applies to the analysis of pelleted carbon black samples taken during the manufacturing process prior to storage. This practice does not apply to shipment samples taken from hopper cars or other containers or packages. 1.3?This practice is specifically designed to be used for those test methods given in Classification D1765 which specify target values. However, these techniques are applicable to other test methods on carbon black. 1.4?This practice describes the calculation for two methods of determining capability factors from an analysis of process control data. 1.4.1?Process capability (Cp) is a measurement of variation calculated from the process control chart data with the use of an estimated standard deviation (^?) from the mean value of the moving range (R) chart. The calculation of the process capability (1.4.2?Process performance (Pp) is a measurement of variation calculated from the process control chart data using sample standard deviation(s). The calculation of the process performance (1.5?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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| 2. Referenced Documents | ||
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