ASTM D4066-13(2019)
(Classification)Standard Classification System for Nylon Injection and Extrusion Materials (PA)
Standard Classification System for Nylon Injection and Extrusion Materials (PA)
ABSTRACT
This classification system covers nylon injection and extrusion materials. Nylon materials are classified into groups according to their composition. Groups are further classified into classes and grades. Grades are identified by a single letter that indicates the reinforcement or filler used and two digits, in multiples of 5, which indicate the nominal quantity in weight percent. Specific requirements for variations of nylon materials shall be shown by a six-character designator. Suffixes shall be used for those properties not covered by basic requirements. Specific suffix requirements shall always take precedence over basic requirements. Tensile strength, flexural strength, Izod impact resistance, deflection temperature, and density shall be done on test pieces based on injection molded ISO 3167 type multipurpose test specimens. Conditioning, preparation, testing, inspection, packaging, and marking shall be in conformance to the requirements in this standard classification system.
SCOPE
1.1 This classification system covers nylon materials suitable for injection molding and extrusion. Some of these compositions are also suitable for compression molding and application from solution.
1.2 The properties included in this classification system are those required to identify the compositions covered. There may be other requirements necessary to identify particular characteristics important to specialized applications. These may be specified by using the suffixes as given in Section 5.
1.3 This classification system and subsequent line call-out (specification) are intended to provide a means of calling out plastic materials used in the fabrication of end items or parts. It is not intended for the selection of materials. Material selection should be made by those having expertise in the plastic field after careful consideration of the design and the performance required of the part, the environment to which it will be exposed, the fabrication process to be employed, the costs involved, and the inherent properties of the material other than those covered by this classification system.
1.4 The values stated in SI units are to be regarded as the standard.
1.5 The following precautionary caveat pertains only to the test methods portion, Section 11, of this classification system. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
Note 1: There is no known ISO equivalent to this standard.
Note 2: This classification system is being revised to include international 4-mm specimens and test procedures as the standard for compliance. The 3.2-mm specimens; test methods; and Tables PA, A, and B are included in Appendix X3 as a reference for those wishing to use them. It is recommended that the material manufacturer be consulted on all call-outs against this classification system.
1.6 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.
General Information
Relations
Standards Content (Sample)
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:D4066 −13 (Reapproved 2019)
Standard Classification System for
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Nylon Injection and Extrusion Materials (PA)
This standard is issued under the fixed designation D4066; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
This standard is maintained in order to support products that must utilize ASTM D4066 in the
productdefinition.Thisisnecessarybecausetherearesomedifferencesbetweenthematerialproperty
test requirements ofASTM D4066 andASTM D6779, Standard Classification System for and Basis
of Specification for Polyamide Molding and Extrusion Materials (PA). There are also differences
betweenthetwospecificationsinsomeoftheGroup/Class/Gradecallouts.Designersofnewproducts
are urged to use ASTM D6779 rather than ASTM D4066.
1. Scope health, and environmental practices and determine the appli-
cability of regulatory limitations prior to use.
1.1 This classification system covers nylon materials suit-
able for injection molding and extrusion. Some of these
NOTE 1—There is no known ISO equivalent to this standard.
NOTE 2—This classification system is being revised to include interna-
compositions are also suitable for compression molding and
tional 4-mm specimens and test procedures as the standard for compli-
application from solution.
ance. The 3.2-mm specimens; test methods; and Tables PA,A, and B are
1.2 The properties included in this classification system are included in Appendix X3 as a reference for those wishing to use them. It
is recommended that the material manufacturer be consulted on all
thoserequiredtoidentifythecompositionscovered.Theremay
call-outs against this classification system.
be other requirements necessary to identify particular charac-
1.6 This international standard was developed in accor-
teristics important to specialized applications. These may be
dance with internationally recognized principles on standard-
specified by using the suffixes as given in Section 5.
ization established in the Decision on Principles for the
1.3 This classification system and subsequent line call-out
Development of International Standards, Guides and Recom-
(specification) are intended to provide a means of calling out
mendations issued by the World Trade Organization Technical
plastic materials used in the fabrication of end items or parts.
Barriers to Trade (TBT) Committee.
It is not intended for the selection of materials. Material
selection should be made by those having expertise in the
2. Referenced Documents
plastic field after careful consideration of the design and the
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2.1 ASTM Standards:
performance required of the part, the environment to which it
D149Test Method for Dielectric Breakdown Voltage and
will be exposed, the fabrication process to be employed, the
DielectricStrengthofSolidElectricalInsulatingMaterials
costsinvolved,andtheinherentpropertiesofthematerialother
at Commercial Power Frequencies
than those covered by this classification system.
D150Test Methods forAC Loss Characteristics and Permit-
1.4 The values stated in SI units are to be regarded as the
tivity (Dielectric Constant) of Solid Electrical Insulation
standard.
D256Test Methods for Determining the Izod Pendulum
1.5 The following precautionary caveat pertains only to the Impact Resistance of Plastics
test methods portion, Section 11, of this classification system. D257Test Methods for DC Resistance or Conductance of
This standard does not purport to address all of the safety Insulating Materials
concerns, if any, associated with its use. It is the responsibility D618Practice for Conditioning Plastics for Testing
of the user of this standard to establish appropriate safety, D638Test Method for Tensile Properties of Plastics
D648Test Method for Deflection Temperature of Plastics
Under Flexural Load in the Edgewise Position
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ThisclassificationsystemisunderthejurisdictionofASTMCommitteeD20on
Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic
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Materials. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Nov. 1, 2019. Published November 2019. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1982. Last previous edition approved in 2013 as D4066- 13. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D4066-13R19. the ASTM website.
*A Summary of Changes section appears at the end of this standard
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