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Significance and Use
4.1 It is the intention of this practice, in addition to the Form and Style for ASTM Standards, to assist persons revising test methods and specifications in Committee D20 to ensure that all required elements are included and that the revised document is presented in the most user-friendly manner possible.
4.2 This practice is intended for use by Committee D20 when test methods and specifications under its jurisdiction are revised because of technical changes or upon five-year review.
4.3 The figures in contain three flowcharts. is a flowchart that shows the review process for standards that have been revised or reapproved recently. is a flowchart for standards that have neither been revised nor reapproved within five years of a new review. is a flowchart for the precision and bias process in outline form.
4.4 Specific instructions to be followed when revising Committee D20 documents are given in this practice.
4.5 The model precision and bias (P and B) statements included in were developed to standardize the presentation of data.
1.1 This practice is intended to assist the subcommittees and sections of Committee D20 on Plastics with the process of standards evaluation during the five-year review mandated by ASTM or when changes to test methods and specifications are required. It is intended to complement the Form and Style for ASTM Standards (“Blue Book”) not replace it.
Note 1: There is no known ISO equivalent to this standard.
1.2 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D883 Terminology Relating to Plastics
D5740 Guide for Writing Material Standards in the Classification Format
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E456 Terminology Relating to Quality and Statistics
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
E2653 Practice for Conducting an Interlaboratory Study to Determine Precision Estimates for a Fire Test Method with Fewer Than Six Participating Laboratories
E2935 Practice for Conducting Equivalence Testing in Laboratory Applications
ICS Number Code 01.120 (Standardization. General rules)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM D4968-19a, Standard Practice for Annual Review of Test Methods and Specifications for Plastics, ASTM International, West Conshohocken, PA, 2019, www.astm.orgBack to Top