ASTM E122 PDF

9 Jun Connecticut. In this article we continue to review standards published by ASTM Inter- Other Deming standards are E and E E Buy ASTM E PRACTICE FOR CALCULATING SAMPLE SIZE TO ESTIMATE, WITH SPECIFIED PRECISION, THE AVERAGE FOR A. Find the most up-to-date version of ASTM E at Engineering

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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 statistical control, the result will not have predictive value for immediate future production. This practice asym 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 a fraction not conforming to a specified value.

If the process is not in a state of statistical control, the result will not have predictive value for immediate future production.

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.

ASTM E122 – 17

This standard is also available to be included in Standards D122. Standards Subsctiption may be the perfect solution. 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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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. Already Subscribed to this document. Need more than one copy?

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The examples are not binding on products or test methods treated. Subscription pricing is determined by: You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. Dimensional quantities in the standard are presented only as illustrations of calculation methods. If so, an estimate of the average value of that characteristic or of the aetm 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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Add to Alert PDF. Dimensional quantities in the standard are presented only as illustrations of calculation methods. Please first log in with a verified email before subscribing to alerts.

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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If the process is not in a state of statistical control, the result will not have predictive value for immediate future production. This aetm 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.

Please first verify your ast before subscribing to alerts. 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.

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Dimensional quantities in the standard are presented only as illustrations of calculation methods. The examples are not binding on products or test methods treated.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. The examples are not binding on products or test methods treated. The level of a characteristic may often be taken as an indication of the quality of a material. If the document is revised or amended, you will be notified by email.

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 a fraction not conforming to a specified value. You may delete a document from your Alert Profile at any time. 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.

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. Link to Active This link will always route to the current Active version of the standard.

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.