9. Sample Size and Confidence. • Calculating Sample Size (ASTM: E – 09). • Demonstrating Confidence in Complying with an Acceptance Procedure (ASTM: . Find the most up-to-date version of ASTM E at Engineering ASTM E, “Calculating Sample Size to Estimate, with. Specified Precision the Average for a Characteristic of a Lot or Process”.
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If the process is not in a state of statistical control, e122-90 result adtm not have predictive value for immediate future production. The standard may be applied to a very wide range of materials, including liquids, powders and solid objects, manufactured or naturally occurring. If so, an estimate of the average value of that characteristic or of the fraction of the observed values that do not conform to a specification for that characteristic becomes a measure of quality with respect to that characteristic.
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Please first verify your email before subscribing to alerts. It can also be used to establish practical estimations of the various measures by experiment. Applied statistics ISOPart 3: If the document is revised or amended, you will be notified by email.
The practice treats the common situation where the sampling units can be considered to exhibit a single overall source of variability; it does not treat multi-level sources of variability. You may delete a document from your Alert Profile at any time.
The practice applies when quality is expressed as either the lot average for a given property, or as the lot fraction not conforming to prescribed standards.
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Proceed to Checkout Continue Shopping. General principles and definitions, is an introduction to the ISO series. The practice treats the common situation where the sampling units can be considered to exhibit a single overall source of variability; it does not treat multi-level sources of variability. Historical Version s – view previous e1222-09 of standard.
ASTM E Archives – Document Center’s Standards Forum
This standard is intended for use in determining the sample size required to estimate, with specified precision, a measure of quality of a lot or process. ISOPart 1: Your Alert Profile lists the documents that will be monitored. Referenced Documents purchase aetm The documents listed below are referenced within the subject standard but are not provided as part of the standard. This practice is intended for use in determining the sample size required to estimate, with specified precision, such a measure of the quality of a lot or process either as an average value or as e12-09 fraction not conforming to a specified value.
The practice applies when quality is expressed as either the lot average for a given property, or as the lot fraction not conforming to prescribed standards. It provides a general introduction to acceptance sampling by attributes and provides a brief summary of the attribute sampling astk and plans used in Parts 1 through 5.
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Tag: ASTM E122-09
The level of a characteristic may often be taken as an indication of the quality of a material. If the process is not in a state of wstm control, the result will not have predictive value for immediate future production.
General statistical terms and terms used in probability. This practice will clearly indicate the sample size required to estimate the average value of some property or the fraction of nonconforming items produced by a production process during the time interval covered by the random sample. It outlines the general principles to be understood when assessing accuracy of measurement methods and results. This standard is not included in any packages. The 5th edition is the current revision of this item.
Introduction to the ISO series of standards for sampling for inspection by attributes, is a good starting point for the ISO set.
ISOPart 2: ISOAccuracy trueness and precision of measurement methods and results — Part 1: Subscription pricing is determined by: Filled with pages of tables for use with a continuous supply, the documents are our current best-selling sampling standards.
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Catalog of Tools and Techniques, are two additional useful standards. General statistical terms and terms used in probability ISOPart 2: