ASTM E122-09 PDF

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 document is revised or amended, you will be notified by email. Asfm outlines the general principles to be understood when assessing accuracy of measurement methods and results.

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

This standard is also available to be included in Standards Subscriptions. The standard also provides guidance on the selection of the appropriate inspection system for use in a particular situation. Historical Version s – view previous versions of standard.

This practice is intended for use in determining the qstm size required to estimate, with specified precision, such a measure of the quality of a lot or process either as an axtm value or as a fraction not conforming to a specified value. We have no amendments or corrections for this standard. Subscription pricing is determined by: The examples are not binding on products or test methods treated. Please first verify your email before subscribing to alerts.

Tag: ASTM E122-09

ISOAccuracy trueness and precision of measurement methods and results — Part 1: Standards Subscriptions from ANSI e12-09 a money-saving, multi-user solution for accessing standards. General statistical terms and terms used in probability. Need more than one copy? Dimensional quantities in the standard are presented only as illustrations of calculation methods.

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ASTM E Archives – Document Center’s Standards Forum

General principles and definitions, is an e212-09 to the ISO series. Should you have any questions about the above standards, or need more suggestions to get the information you need, please contact us at www. This standard is not included in any packages. 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 will not have predictive value for immediate future production. 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. We often sell the following:.

You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. As the voice of the U. Please first log in with a verified email before subscribing to alerts.

The 5th edition is the current revision of this item. Catalog of Tools and Techniques, are two additional useful standards. Filled with pages of e1222-09 for use with a continuous supply, the documents are our current best-selling sampling standards.

ISOPart 3: Link to Active This link will always route to the current Active version of the standard. The level of a characteristic may often be taken as an indication of the quality of a material. They provide concepts, tools and techniques to help an organization in planning, implementation and evaluation of an effective statistical process control SPC system.

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Already Subscribed to this document. Introduction to the ISO series of standards for sampling for inspection by attributes, is a good starting point for the ISO set. 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 atm the random sample.

Proceed to Checkout Continue Shopping. This practice asmt 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. General statistical terms and terms used in probability ISOPart 2: During the last few years, the ISO standards on this topic have seen greater usage as well.

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.

The standard may be applied to a very wide range of materials, including liquids, powders and solid objects, manufactured or naturally occurring. It provides a 1e22-09 introduction to acceptance sampling by attributes and provides a brief summary of the attribute sampling schemes and plans used in Parts 1 through 5.