Standard Classification System for and Basis of Specification for Polyamide Molding and Extrusion Materials (PA)

SCOPE
1.1 This classification system covers polyamide materials suitable for molding and extrusion. Some of these compositions are also suitable for application from solution.  
1.2 The properties included in this classification system are those required to identify the compositions covered. Other requirements necessary to identify particular characteristics important to specialized applications are to be specified by using suffixes as given in Section 5.  
1.3 This classification system and subsequent line callout (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 can 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 standard. No other units of measurement are included in this 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 and health practices and determine the applicability of regulatory requirements prior to use.
Note 1: This classification system is similar to ISO 1874-1/-2,
although the technical content is significantly different.

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Publication Date
28-Feb-2017
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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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D6779 −17
Standard Classification System for and Basis of Specification for
1
Polyamide Molding and Extrusion Materials (PA)
This standard is issued under the fixed designation D6779; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* 2. Referenced Documents
2
1.1 This classification system covers polyamide materials 2.1 ASTM Standards:
suitable for molding and extrusion. Some of these composi- D257 Test Methods for DC Resistance or Conductance of
tions are also suitable for application from solution. Insulating Materials
D789 Test Methods for Determination of Solution Viscosi-
1.2 The properties included in this classification system are
ties of Polyamide (PA)
those required to identify the compositions covered. Other
D792 Test Methods for Density and Specific Gravity (Rela-
requirements necessary to identify particular characteristics
tive Density) of Plastics by Displacement
important to specialized applications are to be specified by
D883 Terminology Relating to Plastics
using suffixes as given in Section 5.
D1600 Terminology forAbbreviatedTerms Relating to Plas-
1.3 This classification system and subsequent line callout
tics
(specification) are intended to provide a means of calling out
D3892 Practice for Packaging/Packing of Plastics
plastic materials used in the fabrication of end items or parts.
D4000 Classification System for Specifying Plastic Materi-
It is not intended for the selection of materials. Material
als
selection can be made by those having expertise in the plastic
D5740 Guide for Writing Material Standards in the Classi-
field after careful consideration of the design and the perfor-
fication Format
mance required of the part, the environment to which it will be
D6260 Test Method for Gravimetric Determination of Car-
3
exposed, the fabrication process to be employed, the costs
bon Black in Nylon Materials (PA) (Withdrawn 2004)
involved, and the inherent properties of the material other than
D7209 Guide for Waste Reduction, Resource Recovery, and
those covered by this classification system.
Use of Recycled Polymeric Materials and Products (With-
3
drawn 2015)
1.4 The values stated in SI units are to be regarded as
standard. No other units of measurement are included in this E29 Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications
standard.
4
2.2 IEC/ISO Standards:
1.5 The following precautionary caveat pertains only to the
IEC 60243-1 Electrical Strength of Insulating Materials—
test methods portion, Section 11, of this classification system.
Test Methods—Part 1: Tests at Power Frequencies
This standard does not purport to address all of the safety
IEC60250 RecommendedMethodsfortheDeterminationof
concerns, if any, associated with its use. It is the responsibility
the Permittivity and Dielectric Dissipation Factor of
of the user of this standard to establish appropriate safety and
Electrical Insulating Materials at Power,Audio and Radio
health practices and determine the applicability of regulatory
Frequencies Including Metre Wavelengths
requirements prior to use.
ISO 75-1 Plastics—Determination of Temperature of De-
NOTE 1—This classification system is similar to ISO 1874-1⁄-2,
flection Under Load—Part 1: General Test Methods
although the technical content is significantly different.
2
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
1
ThisclassificationsystemisunderthejurisdictionofASTMCommitteeD20on Standards volume information, refer to the standard’s Document Summary page on
Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic the ASTM website.
3
Materials. The last approved version of this historical standard is referenced on
Current edition approved March 1, 2017. Published March 2017. Originally www.astm.org.
4
approved in 2002. Last previous edition approved in 2016 as D6779 - 16. DOI: Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
10.1520/D6779-17. 4th Floor, New York, NY 10036, http://www.ansi.org.
*A Summary of Changes section appears at the end of this standard
Copyright ©ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA19428-2959. United States
1

---------------------- Page: 1 ----------------------
D6779−17
ISO 75-2 Plastics—Determination of Temperature of De-
Tolerance
Symbol Material (Based on the Total
flection Under Load—Part 2: Plastic and Ebonite
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D6779 − 16 D6779 − 17
Standard Classification System for and Basis of Specification for
1
Polyamide Molding and Extrusion Materials (PA)
This standard is issued under the fixed designation D6779; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope*
1.1 This classification system covers polyamide materials suitable for molding and extrusion. Some of these compositions are
also suitable for application from solution.
1.2 The properties included in this classification system are those required to identify the compositions covered. Other
requirements necessary to identify particular characteristics important to specialized applications are to be specified by using
suffixes as given in Section 5.
1.3 This classification system and subsequent line callout (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 can 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 standard. No other units of measurement are included in this 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 and health practices and determine the applicability of regulatory requirements
prior to use.
NOTE 1—This classification system is similar to ISO 1874-1 ⁄-2,
although the technical content is significantly different.
2. Referenced Documents
2
2.1 ASTM Standards:
D257 Test Methods for DC Resistance or Conductance of Insulating Materials
D789 Test Methods for Determination of Solution Viscosities of Polyamide (PA)
D792 Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement
D883 Terminology Relating to Plastics
D1600 Terminology for Abbreviated Terms Relating to Plastics
D3892 Practice for Packaging/Packing of Plastics
D4000 Classification System for Specifying Plastic Materials
D5740 Guide for Writing Material Standards in the Classification Format
3
D6260 Test Method for Gravimetric Determination of Carbon Black in Nylon Materials (PA) (Withdrawn 2004)
D7209 Guide for Waste Reduction, Resource Recovery, and Use of Recycled Polymeric Materials and Products (Withdrawn
3
2015)
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
4
2.2 IEC/ISO Standards:
IEC 60243-1 Electrical Strength of Insulating Materials—Test Methods—Part 1: Tests at Power Frequencies
IEC 60250 Recommended Methods for the Determination of the Permittivity and Dielectric Dissipation Factor of Electrical
1
This classification system is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic
Materials.
Current edition approved May 1, 2016March 1, 2017. Published May 2016March 2017. Originally approved in 2002. Last previous edition approved in 20122016 as D6779
- 12a.- 16. DOI: 10.1520/D6779-16.10.1520/D6779-17.
2
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 Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is referenced on www.astm.org.
4
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
*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
1

---------------------- Page: 1 ----------------------
D6
...

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