ASTM D6436-14(2022)

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.
Designation: D6436 − 14 (Reapproved 2022)
Standard Guide for
Reporting Properties for Plastics and Thermoplastic
Elastomers
This standard is issued under the fixed designation D6436; 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 2.3 NFPA Standard:
NFPA 99 Standard for Health Care Facilities
1.1 This guide provides recommendations for reporting the
property values of plastics and thermoplastic elastomers in
3. Terminology
published literature, data sheets, presentations, comparative
3.1 Definitions—The terminology used in this guide is in
analysis, and so forth. It is intended to minimize confusion
accordance with Terminologies D883, D1600, and IEEE/
when comparing the data from several sources.
ASTM SI-10.
1.2 This standard is not intended to replace recommenda-
4. Significance and Use
tions within the test methods for reporting data. Refer to the
4.1 This guide is intended to provide ready access to the
test method or use other guidance to determine the number of
recommendedpropertyname,testmethodreference,maximum
significant figures for reporting laboratory test results.
number of significant digits, and appropriate units for com-
NOTE 1—There is no known ISO equivalent to this standard.
monly used plastics and thermoplastic elastomer tests.
1.3 This international standard was developed in accor-
4.2 It is particularly useful for those involved in the writing
dance with internationally recognized principles on standard-
and proofreading of documents containing data for a large
ization established in the Decision on Principles for the
number of tests since the need to go to each individual test
Development of International Standards, Guides and Recom-
method should be greatly minimized.
mendations issued by the World Trade Organization Technical
4.3 SI units are to be regarded as standard. U.S. Customary
Barriers to Trade (TBT) Committee.
units and conversion factors are provided to accommodate
those situations where it is necessary to report both. U.S.
2. Referenced Documents
Customary refers to units commonly used in the United States
2.1 Because of the large number of ASTM test methods
and is not always the same as inch-pound units.
referenced in this guide, they will not be identified individually
in this section. 5. Procedure
5.1 Refer to Table 1 for the recommended nomenclature and
2.2 ASTM Standards:
units for physical properties and the recommended number of
D883 Terminology Relating to Plastics
significant digits for test data associated with each property.
D1600 Terminology forAbbreviatedTerms Relating to Plas-
tics
5.2 Abbreviations not shown in Table 1 that may be
IEEE/ ASTM SI-10 Standard for Use of the International
necessary to further clarify the conditions of testing, such as
System of Units (SI): The Modern Metric System
MHz and kHz for electrical tests, can be found in IEEE/ASTM
SI-10.
6. Keywords
This guide is under the jurisdiction of ASTM Committee D20 on Plastics and
is the direct responsibility of Subcommittee D20.15 on Thermoplastic Materials.
6.1 conversion factors; decimal places; properties reporting;
Current edition approved March 15, 2022. Published March 2022. Originally
reporting guide; significant figures
approved in 1999. Last previous edition approved in 2014 as D6436 - 14. DOI:
10.1520/D6436-14R22.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from National Fire Protection Association (NFPA), 1 Batterymarch
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Park, Quincy, MA 02169-7471, http://www.nfpa.org.
Standards volume information, refer to the standard’s Document Summary page on The recommended maximum number of significant digits is based on experi-
the ASTM website. ence of experts in the plastics industry.
*A Summary of Changes section appears at the end of this standard
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D6436 − 14 (2022)
TABLE 1 Reference Guide for Properties Reported
Conversion Factor (CV)
Maximum Number of
Property Reported Units, SI (U.S. Customary) ASTM Test Method (SI × CV = U.S.
Significant Digits
Customary)
Arc Resistance s (s) D495 2 1
3 3
Bulk Density kg/m (lb/ft ) D1895 3 0.06242
Charpy Impact Resistance of Notched Specimens J/m (ft×lbf ⁄in.) D6110 3 0.01873
Coefficient of Friction — D1894 2 —
Coefficient of Linear Thermal Expansion mm/mm × °C (in./in. × °F) D696 2 0.5556
(expressed in scientific nota-
tion)
Color, CIE, L*, a*, b* — E308 3 —
Crystalline Peak Melting Point (T ) °C (°F) D3418 3 (°C × 1.8) + 32
m
2nd Heating Cycle
Dart Impact g (g) D1709 2 1
(1 if value is <100)
Deflection Temperature °C (°F) D648 3 (°C × 1.8) + 32
@ 1.82 MPa (264 psi)
@ 0.455 MPa (66 psi)
3 3
Density kg/m (g/cm ) D792 3 0.001
3 3
g/cm (g/cm ) D150
...