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ASTM D6779-12a

(Specification)

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

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.

General Information

Status
Historical
Publication Date
31-Jul-2012
ICS
83.140.01 - Rubber and plastics products in general
Technical Committee
D20 - Plastics
Drafting Committee
D20.15 - Thermoplastic Materials
Current Stage
Ref Project

Relations

Replaces
ASTM D6779-12 - Standard Classification System for and Basis of Specification for Polyamide Molding and Extrusion Materials (PA)
Effective Date
01-Aug-2012
Replaced By
ASTM D6779-16 - Standard Classification System for and Basis of Specification for Polyamide Molding and Extrusion Materials (PA)
Effective Date
01-May-2016
Referred By
ASTM D5989-18 - Standard Specification for Extruded and Monomer Cast Shapes Made from Nylon (PA)
Effective Date
01-Aug-2012
Referred By
ASTM D4066-13(2019) - Standard Classification System for Nylon Injection and Extrusion Materials (PA)
Effective Date
01-Aug-2012
Referred By
ASTM F2807-13(2018) - Standard Specification for Multilayer Polyethylene-Polyamide (PE-PA) Pipe for Pressure Piping Applications
Effective Date
01-Aug-2012
Referred By
ASTM D955-21 - Standard Test Method of Measuring Shrinkage from Mold Dimensions of Thermoplastics
Effective Date
01-Aug-2012
Referred By
ASTM F3524/F3524M-23 - Standard Specification for Polyamide-12 (PA12) Line Pipe
Effective Date
01-Aug-2012
Referred By
ASTM G175-13(2021) - Standard Test Method for Evaluating the Ignition Sensitivity and Fault Tolerance of Oxygen Pressure Regulators Used for Medical and Emergency Applications
Effective Date
01-Aug-2012
Referred By
ASTM F2767-18 - Standard Specification for Electrofusion Type Polyamide-12 Fittings for Outside Diameter Controlled Polyamide-12 Pipe and Tubing for Gas Distribution
Effective Date
01-Aug-2012
Referred By
ASTM D789-19 - Standard Test Method for Determination of Relative Viscosity of Concentrated Polyamide (PA) Solutions
Effective Date
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ASTM D5740-18 - Standard Guide for Writing Material Standards in the Classification D4000 Format
Effective Date
01-Aug-2012
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ASTM D4000-23 - Standard Classification System for Specifying Plastic Materials
Effective Date
01-Aug-2012
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ASTM F3091/F3091M-14(2021) - Standard Specification for Powder Bed Fusion of Plastic Materials
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ASTM F2600-09(2018) - Standard Specification for Electrofusion Type Polyamide-11 Fittings for Outside Diameter Controlled Polyamide-11 Pipe and Tubing
Effective Date
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ASTM F1733-20 - Standard Specification for Butt Heat Fusion Polyamide(PA) Plastic Fitting for Polyamide(PA) Plastic Pipe and Tubing
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ASTM D6779-12a - Standard Classification System for and Basis of Specification for Polyamide Molding and Extrusion Materials (PA)ASTM D6779-12a - Standard Classification System for and Basis of Specification for Polyamide Molding and Extrusion Materials (PA)
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REDLINE ASTM D6779-12a - Standard Classification System for and Basis of Specification for Polyamide Molding and Extrusion Materials (PA)REDLINE ASTM D6779-12a - Standard Classification System for and Basis of Specification for Polyamide Molding and Extrusion Materials (PA)
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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 −12a
StandardClassification 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
E29 Practice for Using Significant Digits in Test Data to
1.4 The values stated in SI units are to be regarded as
standard. No other units of measurement are included in this Determine Conformance with Specifications
4
2.2 IEC/ISO Standards:
standard.
IEC 60243-1 Electrical Strength of Insulating Materials—
1.5 The following precautionary caveat pertains only to the
Test Methods—Part 1: Tests at Power Frequencies
test methods portion, Section 11, of this classification system.
IEC60250 RecommendedMethodsfortheDeterminationof
This standard does not purport to address all of the safety
the Permittivity and Dielectric Dissipation Factor of
concerns, if any, associated with its use. It is the responsibility
Electrical Insulating Materials at Power,Audio and Radio
of the user of this standard to establish appropriate safety and
Frequencies Including Metre Wavelengths
health practices and determine the applicability of regulatory
ISO 75-1 Plastics—Determination of Temperature of De-
requirements prior to use.
flection Under Load—Part 1: General Test Methods
NOTE 1—This classification system is similar to ISO 1874-1⁄-2,
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 Aug. 1, 2012. Published September 2012. Originally www.astm.org.
4
approved in 2002. Last previous edition approved in 2012 as D6779 - 12. DOI: Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
10.1520/D6779-12A. 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 ----------------------
D6779−12a
ISO 75-2 Plastics—Determination of Temperature of De-
Tolerance
Symbol Material (Based on the Total
flection Under Load—Part 2: Plastic and Ebonite
Mass)
ISO 179-1
...

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 − 12 D6779 − 12a
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.
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
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
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 April 1, 2012Aug. 1, 2012. Published April 2012September 2012. Originally approved in 2002. Last previous edition approved in 20112012 as
D6779 - 11.D6779 - 12. DOI: 10.1520/D6779-12.10.1520/D6779-12A.
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 ----------------------
D6779 − 12a
IEC 60250 Recommended Methods for the Determination of the Permittivity and Dielectric Dissipation Factor of Electrical
Insulating Materials at Power, Audio and Radio Frequencies Including Metre Waveleng
...

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Standard Specification for Polyethylene-Based Structural-Grade Plastic Lumber for Outdoor Applications

SCOPE
1.1 This specification covers a type of plastic lumber product, defined as polyethylene-based structural-grade plastic lumber (SGPL), for use as main framing members, including joists, stringers, beams, columns; and secondary framing members, including planking, posts and bracing; in outdoor structures such as decks, boardwalks, docks, and platforms.  
1.2 This specification is applicable to solid, rectangular SGPL products where polyethylene resin (non cross-linked) is the continuous phase and is at least 50 % of the product (by weight).  
1.3 This specification is not applicable to plastic lumber products containing cellulosic materials as additives, fillers or fiber reinforcements.  
1.4 SGPL products covered by this specification shall not be used as tensile members.  
1.5 SGPL products are produced using several different manufacturing processes. These processes utilize a number of polyethylene resin material systems that include varying proportions of fillers, fiber reinforcements, and other chemical additives.  
1.6 Due to thermodynamic effects that result in outer-surface densification during manufacture, SGPL products are typically non-homogeneous in the cross-section. This standard does not address materials that have been modified from their original cross-section.  
1.6.1 The cross-section non-homogeneity is addressed in the material property assessments in this document only for applications in which the product cross-section is not modified by cutting, notching, or drilling. For products modified in this manner, additional engineering considerations are required and they are beyond the scope of this document.  
1.7 For purposes of this standard, an SGPL product is a specific combination of polyethylene resin, together with fillers, reinforcements, and additives. Each formulation is to be identified as a distinct and different product, to be tested and evaluated separately.  
1.8 Diverse and multiple combinations of both virgin and recycled polyethylene material systems are permitted in the manufacture of SGPL products.  
1.9 Fiber reinforcements used in SGPL include manufactured materials such as fiberglass (chopped or continuous), carbon, aramid and other polymeric materials.  
1.10 A wide variety of chemical additives are typically added to SGPL formulations. Examples include colorants, chemical foaming agents, ultraviolet stabilizers, fire retardants, lubricants, anti-static products, heat stabilizers, and coupling agents.  
1.11 Diverse types and combinations of filler systems are permitted in the manufacturing of SGPL products. Fillers that cause the product to fail the requirements of 6.13 are not permitted in the manufacturing of SGPL products.  
1.12 In order for a product to be classified as SGPL, it must meet the minimum stress and modulus criteria consistent with the specific product as marked, and additionally the properties specified in Section 6 of this specification.  
1.13 This specification pertains to SGPL where any reinforcement is uniformly distributed within the product. When reinforcement is not uniformly distributed, the engineering issues become substantially more complex. For this reason, such products are not covered in this document.  
1.14 Products that fail at strains of less than 0.02 (2 %) when tested in flexure in accordance with 6.6 are not compatible with the underlying assumptions of Annex A1 and are beyond the scope of this standard (see Note 1).
Note 1: Calculation of time-dependent properties in Annex A1 is based on the assumption that the product does not fail in a brittle manner. The 2 % strain limit was selected based on the judgment of the task group members that created Annex A1.  
1.15 This specification addresses issues relevant to a buyer’s requirements for SGPL products and has therefore been developed in the format of a procurement specification.  
1.16 Criteria for design are included as part of this specification for SGPL product...

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ASTM
ASTM D7611/D7611M-21(Practice)
Standard Practice for Coding Plastic Manufactured Articles for Resin Identification

SIGNIFICANCE AND USE
4.1 Resin Identification Codes are used solely to identify the plastic resin used in a manufactured article. The intended manufactured articles include, but are not limited to, packaging.  
4.1.1 Fig. 1 and Table 1 present the appropriate information on the way the RIC is to be incorporated onto the product and the available resin identification designations.
FIG. 1 Example of a Resin Identification Marker  
4.2 Resin Identification Codes are not “recycle codes.” The Resin Identification Code is, though, an aid to recycling. The use of a Resin Identification Code on a manufactured plastic article does not imply that the article is recycled or that there are systems in place to effectively process the article for reclamation or re-use. The term “recyclable” or other environmental claims shall not be placed in proximity to the Code.  
4.3 This practice is based upon the system developed in 1988 by the Society of the Plastics Industry, Inc (SPI). It is possible that some states or countries will have incorporated the original SPI practice into statute or regulation. In those situations, that statute or regulation takes precedence over this standard.  
4.4 This practice shall only apply to new tooling. Existing molds that already incorporate older versions of the SPI RIC may be modified, but modification is not required.  
4.5 Assign number for manufactured items, not for adhesives or coatings. Do not code labels for resin of the label.  
4.6 Section 6 addresses the process to add new numbers to the Resin Identification Code.
SCOPE
1.1 This practice stipulates the types, names, and sizes of Codes for those material types specified in Table 1.  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are likely not to be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems is likely to result in non-conformance with the standard.  
1.3 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.  
1.4 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.

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ASTM
ASTM D4495-21(Test Method)
Standard Test Method for Impact Resistance of Poly(Vinyl Chloride) (PVC) Rigid Profiles by Means of a Falling Weight

SIGNIFICANCE AND USE
5.1 The impact strength of PVC profiles relates to suitability for service and to quality of processing. Impact tests are used for quality-control purposes and as an indication that products can withstand handling during assembling, installation, or in service.  
5.2 Results obtained by use of this test method are used in two ways:  
5.2.1 As the basis for establishing impact-test requirements in product standards, and  
5.2.2 To measure the effect of changes in materials or processing.
SCOPE
1.1 This test method covers the determination of the energy required to crack or break rigid poly(vinyl chloride) (PVC) profile under specified conditions of impact by means of a falling weight.  
1.2 This test method is used either by itself or in conjunction with other methods for measuring PVC product toughness.  
1.3 Because of the wide variety of profile sizes and shapes and the wide variety of manufacturing procedures and field abuse, this test method does not correlate universally with all types of abuse. Therefore, correlations must be established as needed.  
1.4 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of this standard.  
1.5 The values stated in inch-pound units are to be regarded as the standard.  
1.6 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.  
1.7 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.

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ASTM
ASTM D8366-21a(Specification)
Standard Specification for Extruded and Compression Molded Shapes Made from Unfilled Poly(Vinylidene Fluoride) PVDF

SCOPE
1.1 This specification covers the requirements and test methods for the material, dimensions, workmanship, and the properties of extruded sheet, rod and tubular bar manufactured from unfilled PVDF.  
1.2 This specification covers the requirements and test methods for the material, dimensions, workmanship, and the properties of extruded and compression molded shapes manufactured from unfilled PVDF.  
1.3 The properties included in this specification are those required for shapes made from PVDF polymers. Requirements necessary to identify particular characteristics of the shape are included in Section 5.  
1.4 This specification allows for the use of up to 20 % process regrind and reprocessed plastic, total, and of uncontaminated quality.  
1.5 The values stated in English Units are to be regarded as the standard in all property and dimensional tables. For reference purposes, SI units are also included.  
1.6 The following safety hazards caveat pertains only to the test method or test methods described in this specification. 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.  
1.7 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.

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