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This practice establishes uniform standards for expressing the precision and bias of test methods for industrial and specialty chemicals.
This practice is being withdrawn because ASTM has an ILS program that E15 has used and will continue to use. Also, among other supporting factors, E180 goes through a lot of hand calculations when there are available statistical packages to do these analyses. This makes this practice appear overly complex and may discourage the use of such studies within the committee. With the ASTM ILS program available, E180 could be retired to IHS (ASTM and other standards associations' archive facility) and would be available for a fee.
Formerly under the jurisdiction of Committee E15 on Idustrial and Specialty Chemicals and the direct responsibility of Subcommittee E15.01 on General Standards, this practice was withdrawn in October 2009 with no replacement.
1.1 This practice establishes uniform standards for expressing the precision and bias of test methods for industrial and specialty chemicals. It includes an abridged procedure for developing this information, based on the simplest elements of statistical analysis. There is no intent to restrict qualified groups in their use of other techniques.
1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
1.3 In this practice, the vocabulary and guidelines for calculation and interpretation of statistical data according to the ISO are followed as closely as possible. Particular reference is made to ISO 5725, Parts 1 to 6.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1013 Test Method for Total Nitrogen in Resins and Plastics
D1727 Test Method for Urea Content of Nitrogen Resins
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specification
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E178 Practice for Dealing with Outlying Observations
E456 Terminology Relating to Quality and Statistics
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
E1169 Guide for Conducting Ruggedness Tests
ISO DocumentISO 5725 Accuracy (trueness and precision) of measurements and results
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ASTM E180-03, Standard Practice for Determining the Precision of ASTM Methods for Analysis and Testing of Industrial and Specialty Chemicals (Withdrawn 2009), ASTM International, West Conshohocken, PA, 2003, www.astm.orgBack to Top