ASTM D6779-23
Standard Classification System for and Basis of Specification for Polyamide Molding and Extrusion Materials (PA)

Standard No.

ASTM D6779-23

Release Date

2023

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D6779-23

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. NOTE 1—This classification system is similar to ISO 16396-1 ⁄-2, although the technical content is significantly different. NOTE 2—The materials covered by this classification system include a subset of polyamides defined as polyphthalamides (PPA) as in 3.2.1, some of which are also classified in ASTM D5336. Specifically, groups 7, 10, 12, 13, 14, 15 and 17 in this standard are PPA materials. ASTM D5336 gives further details relating to groups 10, 12 and 13. 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.

ASTM D6779-23 Referenced Document

• ASTM D1600 Standard Terminology for Abbreviated Terms Relating to Plastics
• ASTM D257 Standard Test Methods for DC Resistance or Conductance of Insulating Materials
• ASTM D3892 Standard Practice for Packaging/Packing of Plastics
• ASTM D4000 Standard Classification System for Specifying Plastic Materials
• ASTM D5336 Standard Classification System and Basis for Specification for Polyphthalamide (PPA) Injection Molding Materials
• ASTM D5740 Standard Guide for Writing Material Standards in the Classification D4000 Format
• ASTM D6260 Standard Test Method for Gravimetric Determination of Carbon Black in Nylon Materials (PA)
• ASTM D7209 Standard Guide for Waste Reduction, Resource Recovery, and Use of Recycled Polymeric Materials and Products *， 2024-04-22 Update
• ASTM D789 Standard Test Methods for Determination of Relative Viscosity and Moisture Content of Polyamide (PA)
• ASTM D792 Standard Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement
• ASTM D883 Standard Terminology Relating to Plastics*， 2024-02-01 Update
• ASTM E29 Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
• ISO 11357-1 Plastics — Differential scanning calorimetry (DSC) — Part 1: General principles
• ISO 11357-3 Plastics - Differential scanning calorimetry (DSC) - Part 3: Determination of temperature and enthalpy of melting and crystallization
• ISO 1183 Plastics; Methods for determining the density and relative density of non-cellular plastics
• ISO 15512 Plastics — Determination of water content
• ISO 16396-1 Plastics — Polyamide (PA) moulding and extrusion materials — Part 1: Designation system and basis for specifications
• ISO 16396-2 Plastics — Polyamide (PA) moulding and extrusion materials — Part 2: Preparation of test specimens and determination of properties
• ISO 179-1 Plastics. Determination of Charpy impact properties - Non-instrumented impact test*， 2023-06-07 Update
• ISO 20753 Plastics*， 2023-11-01 Update
• ISO 294-1 Plastics - Injection moulding of test specimens of thermoplastic materials - Part 1: General principles, and moulding of multipurpose and bar test specimens
• ISO 307 Plastics — Polyamides — Determination of viscosity number
• ISO 3451-4 Plastics — Determination of ash — Part 4: Polyamides*， 2024-01-01 Update
• ISO 527-1 Plastics — Determination of tensile properties — Part 1: General principles
• ISO 527-2 Plastics - Determination of tensile properties - Part 2: Test conditions for moulding and extrusion plastics
• ISO 75-1 Plastics — Determination of temperature of deflection under load — Part 3: High-strength thermosetting laminates and long-fibre-reinforced plastics
• ISO 75-2 Plastics - Determination of temperature of deflection under load - Part 2: Plastics and ebonite

ASTM D6779-23 history

• 2023 ASTM D6779-23 Standard Classification System for and Basis of Specification for Polyamide Molding and Extrusion Materials (PA)
• 2021 ASTM D6779-21 Standard Classification System for and Basis of Specification for Polyamide Molding and Extrusion Materials (PA)
• 2020 ASTM D6779-20 Standard Classification System for and Basis of Specification for Polyamide Molding and Extrusion Materials (PA)
• 2017 ASTM D6779-17 Standard Classification System for and Basis of Specification for Polyamide Molding and Extrusion Materials (PA)
• 2016 ASTM D6779-16 Standard Classification System for and Basis of Specification for Polyamide Molding and Extrusion Materials (PA)
• 2012 ASTM D6779-12a Standard Classification System for and Basis of Specification for Polyamide Molding and Extrusion Materials (PA)
• 2012 ASTM D6779-12 Standard Classification System for and Basis of Specification for Polyamide Molding and Extrusion Materials (PA)
• 2011 ASTM D6779-11 Standard Classification System for Polyamide Molding and Extrusion Materials (PA)
• 2010 ASTM D6779-10 Standard Classification System for Polyamide Molding and Extrusion Materials (PA)
• 2008 ASTM D6779-08a Standard Classification System for Polyamide Molding and Extrusion Materials (PA)
• 2008 ASTM D6779-08 Standard Classification System for Polyamide Molding and Extrusion Materials (PA)
• 2007 ASTM D6779-07a Standard Classification System for Polyamide Molding and Extrusion Materials (PA)
• 2007 ASTM D6779-07 Standard Classification System for Polyamide Molding and Extrusion Materials (PA)
• 2006 ASTM D6779-06e1 Standard Classification System for Polyamide Molding and Extrusion Materials (PA)
• 2006 ASTM D6779-06 Standard Classification System for Polyamide Molding and Extrusion Materials (PA)
• 2005 ASTM D6779-05 Standard Classification System for Polyamide Molding and Extrusion Materials (PA)
• 2004 ASTM D6779-04a Standard Classification System for Polyamide Molding and Extrusion Materials (PA)
• 2004 ASTM D6779-04 Standard Classification System for Polyamide Molding and Extrusion Materials (PA)
• 2003 ASTM D6779-03 Standard Classification System for Polyamide Molding and Extrusion Materials (PA)
• 2002 ASTM D6779-02a Standard Classification System for Polyamide Molding and Extrusion Materials (PA)
• 2002 ASTM D6779-02 Standard Classification System for Polyamide Molding and Extrusion Materials (PA)