ASTM D4968-15

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Designation:D4968 −15
StandardPractice for
Annual Review of Test Methods and Specifications for
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Plastics
This standard is issued under the fixed designation D4968; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 4. Significance and Use
1.1 Thispracticeisintendedtoassistthesubcommitteesand 4.1 Itistheintentionofthispractice,inadditiontotheForm
sections of Committee D20 on Plastics with the process of and Style for ASTM Standards, to assist persons revising test
standards evaluation during the five-year review mandated by methodsandspecificationsinCommitteeD20toensurethatall
ASTM or when changes to test methods and specifications are required elements are included and that the revised document
required. It is intended to complement the Form and Style for is presented in the most user-friendly manner possible.
ASTM Standards (“Blue Book”) not replace it.
4.2 This practice is intended for use by Committee D20
when test methods and specifications under its jurisdiction are
NOTE 1—There is no known ISO equivalent to this standard.
revised because of technical changes or upon five-year review.
2. Referenced Documents
4.3 The flowcharts in Annex A1 show the review process
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2.1 ASTM Standards:
and the precision and bias process in outline form.
D883 Terminology Relating to Plastics
4.4 Specific instructions to be followed when revising
D5740 Guide for Writing Material Standards in the Classi-
Committee D20 documents are given in this practice.
fication Format
E456 Terminology Relating to Quality and Statistics 4.5 The model precision and bias (P and B) statements
E691 Practice for Conducting an Interlaboratory Study to
included in Annex A3 were developed to standardize the
Determine the Precision of a Test Method presentation of data.
Form and Style for ASTM Standards (Blue Book)
5. Evaluating the Need for Revisions
3. Terminology
5.1 Society regulations require that all D20 standards be
3.1 Definitions—For definitions of terms that appear in this
reviewed in detail every five years. Ballots to revise individual
practice relating to plastics, refer to Terminology D883.
sections of a document (which have the potential to change the
3.2 For definitions of terms that appear in this practice
date of issue) do not absolve the responsible D20 subcommit-
relating to quality and statistics, refer to Terminology E456.
tee from the requirement to conduct the detailed review every
five years. Begin the review for revision, reapproval, or
3.3 Guidelines for terminology in standards that are refer-
withdrawal at least one year prior to the required revision year,
enced in model codes issued by either the International Code
that is, four years after the last full review. The date of the last
Council (ICC) or the National Fire Protection Association
complete document review must be listed in the Summary of
(NFPA) are based on guidance originally provided by one of
Changes section at the end of the document.
the regional model building codes (BOCA) and are given in
Appendix X1.
5.2 The goal of the review process is to determine if the
3.3.1 In practice, the key issue is to avoid using the terms
document under review is to be balloted for:
“may” and “should,” except within definitions, appendixes and
5.2.1 Reapproval without change,
non-mandatory notes.
5.2.2 Reapproval with editorial changes,
5.2.3 Revision with technical changes, or
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5.2.4 Withdrawal.
This guide is under the jurisdiction of ASTM Committee D20 on Plastics and
is the direct responsibility of Subcommittee D20.90 on Executive.
5.3 Aflowchart for review of plastics standard test methods
Current edition approved Dec. 1, 2015. Published January 2016. Originally
or specifications is found in Annex A1.
approved in 1989. Last previous edition approved in 2009 as D4968 - 09. DOI:
10.1520/D4968-15.
5.3.1 The following sections describe the details for each
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
step of the flowchart.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.3.2 With the permission of the Section or Subcommittee
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. chairman, as appropriate, a task group is formed with a task
*A Summary of Changes section appears at the end of this standard
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D4968−15
group chairman to head it. The task group shall be composed dards. No test method shall rem
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