Standard
Active
Last Updated: Jan 19, 2026
Track Document
ASTM D4968-25a
Standard Practice for Review of Test Methods and Specifications for Plastics
Standard Practice for Review of Test Methods and Specifications for Plastics
D4968-25A
ASTM|D4968-25A|en-US
Standard Practice for Review of Test Methods and Specifications for Plastics
Standard
D4968 Standard Practice for Review of Test Methods and Specifications for Plastics>
new
BOS Vol. 08.02 Committee D20
$
80.00
In stock
ASTM International
Significance and Use
4.1 It is the intention of this practice, in addition to the Form and Style for ASTM Standards (Blue Book), 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 Annex A1 contain three flowcharts. Fig. A1.1 is a flowchart that shows the review process for standards that have been revised or reapproved recently. Fig. A1.2 is a flowchart for standards that have neither been revised nor reapproved within five years of a new review.
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 Annex A3 were developed to standardize the presentation of data. They are model statements and are not required to be used with that exact language.
Scope
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 practice is also intended to complement and not replace any guidance in either the ASTM Technical Committee Officer Handbook or “Red Book” and the Regulations Governing ASTM Technical Committees or “Green Book.”
1.3 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.