ASTM D4968-09
(Guide)Standard Guide for Annual Review of Test Methods and Specifications for Plastics
Standard Guide for Annual Review of Test Methods and Specifications for Plastics
SIGNIFICANCE AND USE
It is the intention of this guide to provide information to 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.
This guide is intended for use by Committee D20 when test methods and specifications under its jurisdiction are revised due to technical changes or upon five-year review.
The flowchart in Annex A1 shows the review process in outline form.
Specific instructions to be followed when revising Committee D20 documents are given in this guide.
The model precision and bias (P and B) statements included in Appendix X1-Appendix X3 were developed to standardize the presentation of data.
SCOPE
1.1 This guide 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.
Note 1—There is no known ISO equivalent to this guide.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D4968 −09
StandardGuide 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* 3.4 Documents that have been developed for or referenced
in model (building) codes such as the International Code
1.1 This guide is intended to assist the subcommittees and
Council (ICC) shall be written completely in the mandatory
sections of Committee D20 on Plastics with the process of
mode. Explanatory material shall only be used in notes and
standards evaluation during the five-year review mandated by
footnotes unless the footnote is integral to a table and the
ASTM or when changes to test methods and specifications are
document shall contain the following statement: “The text of
required.
this standard references notes and footnotes that provide
NOTE 1—There is no known ISO equivalent to this guide.
explanatory material. These notes and footnotes (excluding
those in tables and figures) shall not be considered as require-
2. Referenced Documents
ments of the standard.”
2
2.1 ASTM Standards:
NOTE 2—A list of D20 standards referenced in model (building) codes
D883 Terminology Relating to Plastics
andcurrentwiththisdocumentisfoundinAnnexA3.Updatestothistable
D5033 GuideforDevelopmentofASTMStandardsRelating
are available through ASTM.
to Recycling and Use of Recycled Plastics (Withdrawn
3
2007)
4. Significance and Use
E456 Terminology Relating to Quality and Statistics
4.1 It is the intention of this guide to provide information to
E691 Practice for Conducting an Interlaboratory Study to
persons revising test methods and specifications in Committee
Determine the Precision of a Test Method
D20 to ensure that all required elements are included and that
3. Terminology the revised document is presented in the most user-friendly
manner possible.
3.1 Definitions—For definitions of terms that appear in this
guide, refer to Terminology E456.
4.2 This guide is intended for use by Committee D20 when
test methods and specifications under its jurisdiction are
3.2 Guidelines for terminology in standards which are
revised due to technical changes or upon five-year review.
referenced in BOCA National Codes are given in Appendix
X3.
4.3 The flowchart in AnnexA1 shows the review process in
outline form.
3.3 The document shall be reviewed to ensure that all
procedures, directions, instructions, etc. are written as manda-
4.4 Specific instructions to be followed when revising
tory requirements. All explanatory material apart from these,
Committee D20 documents are given in this guide.
either for emphasis or for offering informative suggestions not
4.5 The model precision and bias (P and B) statements
properly part of the standard shall be incorporated in non-
included in Appendix X1 – Appendix X3 were developed to
procedural sections or as notes or appendixes and shall not
standardize the presentation of data.
include mandatory requirements.
5. Evaluating the Need for Revisions
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This guide is under the jurisdiction of ASTM Committee D20 on Plastics and
is the direct responsibility of Subcommittee D20.90 on Executive.
5.1 Society regulations require that all D20 standards be
Current edition approved Nov. 1, 2009. Published December 2009. Originally
reviewed in detail every five years. Ballots to revise individual
approved in 1989. Last previous edition approved in 2008 as D4968 - 08. DOI:
sections of a document (which may change the date of issue)
10.1520/D4968-09.
2
do not absolve the responsible D20 subcommittee from the
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
requirement to conduct the detailed review every five years.
Standards volume information, refer to the standard’s Document Summary page on
Begin the review for revision, reapproval, or withdrawal at
the ASTM website.
3
least one year prior to the required revision year, that is, four
The last approved version of this historical standard is referenced on
www.astm.org. years after the last full review. The date of the last complete
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D4968−09
document review must be listed in the Summary of Changes laboratories are available to complete a round robin by the
section at the end of the document. five-year review, the st
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