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ASTM D6779-23

Current Revision

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

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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.


SDO ASTM: ASTM International
Document Number D6779
Publication Date March 15, 2023
Language en - English
Page Count 14
Revision Level 23
Supercedes
Committee D20.15
Publish Date Document Id Type View
March 15, 2023 D6779-23 Revision
July 1, 2021 D6779-21 Revision
July 1, 2020 D6779-20 Revision
March 1, 2017 D6779-17 Revision
May 1, 2016 D6779-16 Revision
Aug. 1, 2012 D6779-12A Revision
April 1, 2012 D6779-12 Revision
July 1, 2010 D6779-11 Revision
July 1, 2010 D6779-10 Revision
April 1, 2008 D6779-08A Revision
Jan. 15, 2008 D6779-08 Revision
Sept. 15, 2007 D6779-07A Revision
April 1, 2007 D6779-07 Revision
March 15, 2006 D6779-06E01 Revision
March 15, 2006 D6779-06 Revision
March 1, 2005 D6779-05 Revision
Nov. 1, 2004 D6779-04A Revision
Oct. 1, 2004 D6779-04 Revision
March 10, 2003 D6779-03 Revision
Nov. 10, 2002 D6779-02A Revision
March 10, 2002 D6779-02 Revision