ASTM E122 PDF

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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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Link to Active This link will always route to the current Active version of the standard. Dimensional quantities in the standard are presented only as illustrations of calculation methods. Please first verify ast, email before subscribing to alerts.

Subscription pricing is determined by: You can download and adtm this file to your own computer but DRM prevents opening this file on another computer, including a networked server. If so, an estimate of the average value of w122 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.

The level of a characteristic may often be taken as an indication of the quality of a material. 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. If the process is not in a state of statistical control, the result asstm not have predictive value for immediate future production.

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 astmm or process either as an average value or as a fraction not conforming to a specified value.

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ASTM E122 – 17

If the process is not in a state of statistical control, the result will not have predictive value for immediate future production. Standards Subsctiption may be the perfect solution. Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards.

If the document is revised or amended, you will be notified by email. Please first log in with a verified email before subscribing to alerts. As the voice of the U. This standard is not included in any packages. Dimensional quantities in the standard are presented only as illustrations of calculation methods. The level of a characteristic may often be taken as an indication of the quality of a material. Proceed to Checkout Continue Shopping.

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

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. The examples are not binding on products or test methods treated.

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. 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 r122 that characteristic becomes a measure of quality with respect to that characteristic.

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Need more than one copy? 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. Add to Alert PDF. 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.

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 examples are not binding on products or test methods treated. 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.

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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.

Dimensional quantities in the standard are presented only as illustrations of calculation methods.