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ASTM D4976-12

(Specification)

Standard Specification for Polyethylene Plastics Molding and Extrusion Materials

Standard Specification for Polyethylene Plastics Molding and Extrusion Materials

ABSTRACT
This specification provides the standard requirements for polyethylene plastic molding and extrusion materials. The tests involved in this specification are intended to provide information for identifying materials in accordance with the groups, classes, and grades covered. Polyethylene plastic materials are classified into two groups in accordance with the molecular structure which may be branched or linear. Test specimens shall be compression molded, conditioned in a standard or controlled laboratory atmosphere, and tested to determine the materials' physical and electrical properties. The specimens shall comply with the following requirements: flow rate; density; tensile stress at yield; nominal strain at break; secant flexural modulus; environmental stress-crack resistance; slow crack growth resistance; thermal stress crack resistance; permittivity; dissipation factor; volume resistivity; water immersion stability; flammability; and weatherability.
SCOPE
1.1 This specification provides for the identification of polyethylene plastics molding and extrusion materials in such a manner that the supplier and the user can agree on the acceptability of different commercial lots or shipments. The tests involved in this specification are intended to provide information for identifying materials in accordance with the groups, classes, and grades covered. It is not the function of this specification to provide specific engineering data for design purposes.  
1.2 Other requirements may be necessary to identify particular characteristics important to specialized applications. These shall be agreed upon between the user and the supplier, by using the suffixes given in Section 1.3.  
1.3 Ethylene plastic materials, being thermoplastic, are reprocessable and recyclable (see Note 1). This specification allows for the use of those ethylene plastic materials, provided that any specific requirements as governed by the producer and the end user are met.  
Note 1—See Guide D5033 for information and definitions related to recycled plastics.  
1.4 The values stated in SI units are regarded as standard.
1.5 The following precautionary caveat pertains to the test method portion only, Section 12, of 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 and health practices and determine the applicability of regulatory limitations prior to use.  
1.6 For information regarding plastic pipe materials see Specification D3350. For information regarding wire and cable materials, see Specification D1248. For information on polyethylenes with densities below 0.910 g/cm3, see Classification D5593.
Note 2—There is no similar or equivalent ISO standard.

General Information

Status
Historical
Publication Date
31-Mar-2012
ICS
83.080.20 - Thermoplastic materials
Technical Committee
D20 - Plastics
Drafting Committee
D20.15 - Thermoplastic Materials
Current Stage
Ref Project

Relations

Replaces
ASTM D4976-06 - Standard Specification for Polyethylene Plastics Molding and Extrusion Materials
Effective Date
01-Apr-2012
Referred By
ASTM D1693-21 - Standard Test Method for Environmental Stress-Cracking of Ethylene Plastics
Effective Date
01-Apr-2012
Referred By
ASTM D4801-08(2016) - Standard Specification for Polyethylene Sheeting in Thickness of 0.25 mm (0.010 in.) and Greater
Effective Date
01-Apr-2012
Referred By
ASTM F1901-22 - Standard Specification for Polyethylene (PE) Pipe and Fittings for Roof Drain Systems
Effective Date
01-Apr-2012
Referred By
ASTM D3981-09a(2016) - Standard Specification for Polyethylene Films Made from Medium-Density Polyethylene for General Use and Packaging Applications
Effective Date
01-Apr-2012
Referred By
ASTM A674-22 - Standard Practice for Polyethylene Encasement for Ductile Iron Pipe
Effective Date
01-Apr-2012
Referred By
ASTM D7436-17 - Standard Classification System for Unfilled Polyethylene Plastics Molding and Extrusion Materials with a Fractional Melt Index Using ISO Protocol and Methodology
Effective Date
01-Apr-2012
Referred By
ASTM F639-09(2015) - Standard Specification for Polyethylene Plastics for Medical Applications
Effective Date
01-Apr-2012
Referred By
ASTM D2684/D2684M-15 - Standard Test Method for Permeability of Thermoplastic Containers to Packaged Reagents or Proprietary Products
Effective Date
01-Apr-2012
Referred By
ASTM D4883-18 - Standard Test Method for Density of Polyethylene by the Ultrasound Technique
Effective Date
01-Apr-2012
Referred By
ASTM D1248-16 - Standard Specification for Polyethylene Plastics Extrusion Materials for Wire and Cable
Effective Date
01-Apr-2012
Referred By
ASTM D2659-16 - Standard Test Method for Column Crush Properties of Blown Thermoplastic Containers
Effective Date
01-Apr-2012
Referred By
ASTM D4635-16 - Standard Specification for Plastic Films Made from Low-Density Polyethylene and Linear Low-Density Polyethylene for General Use and Packaging Applications
Effective Date
01-Apr-2012
Referred By
ASTM G218-19 - Standard Guide for External Corrosion Protection of Ductile Iron Pipe Utilizing Polyethylene Encasement Supplemented by Cathodic Protection
Effective Date
01-Apr-2012
Referred By
ASTM D4703-16 - Standard Practice for Compression Molding Thermoplastic Materials into Test Specimens, Plaques, or Sheets
Effective Date
01-Apr-2012

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ASTM D4976-12 - Standard Specification for Polyethylene Plastics Molding and Extrusion MaterialsASTM D4976-12 - Standard Specification for Polyethylene Plastics Molding and Extrusion Materials
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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:D4976 −12
StandardSpecification for
1
Polyethylene Plastics Molding and Extrusion Materials
This standard is issued under the fixed designation D4976; 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 Department of Defense.
INTRODUCTION
This specification is not intended for the selection of materials, but only as a means to call out
plastic materials to be used for the manufacture of parts.The selection of these materials is to be made
by personnel with expertise in the plastics field where the environment, inherent properties of the
materials, performance of the parts, part design, manufacturing process, and economics are
considered. This specification does not specify the source of the resin to be used for the fabrication
of any given article.
1. Scope* if any, associated with its use. It is the responsibility of the user
of this standard to establish appropriate safety and health
1.1 This specification provides for the identification of
practices and determine the applicability of regulatory limita-
polyethylene plastics molding and extrusion materials in such
tions prior to use.
a manner that the supplier and the user can agree on the
acceptability of different commercial lots or shipments. The 1.6 For information regarding plastic pipe materials see
tests involved in this specification are intended to provide Specification D3350. For information regarding wire and cable
information for identifying materials in accordance with the materials, see Specification D1248. For information on poly-
3
groups, classes, and grades covered. It is not the function of ethylenes with densities below 0.910 g/cm , see Classification
this specification to provide specific engineering data for D5593.
design purposes.
NOTE 2—There is no similar or equivalent ISO standard.
1.2 Other requirements may be necessary to identify par-
2. Referenced Documents
ticular characteristics important to specialized applications.
2
These shall be agreed upon between the user and the supplier,
2.1 ASTM Standards:
by using the suffixes given in Section 1.3. D257 Test Methods for DC Resistance or Conductance of
Insulating Materials
1.3 Ethylene plastic materials, being thermoplastic, are
D568 Method ofTest for Burning and/or Extent andTime of
reprocessable and recyclable (see Note 1). This specification
Burning of Flexible Plastics in a Vertical Position (With-
allows for the use of those ethylene plastic materials, provided
3
drawn 1991)
that any specific requirements as governed by the producer and
D618 Practice for Conditioning Plastics for Testing
the end user are met.
D635 Test Method for Rate of Burning and/or Extent and
NOTE 1—See Guide D5033 for information and definitions related to
Time of Burning of Plastics in a Horizontal Position
recycled plastics.
D638 Test Method for Tensile Properties of Plastics
1.4 The values stated in SI units are regarded as standard.
D790 Test Methods for Flexural Properties of Unreinforced
and Reinforced Plastics and Electrical Insulating Materi-
1.5 The following precautionary caveat pertains to the test
als
method portion only, Section 12, of this specification. This
D792 Test Methods for Density and Specific Gravity (Rela-
standard does not purport to address all of the safety concerns,
tive Density) of Plastics by Displacement
1 2
This specification is under the jurisdiction of ASTM Committee D20 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Materials. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved April 1, 2012. Published May 2012. Originally the ASTM website.
3
approved in 1995. Last previous edition approved in 2006 as D4976 - 06. DOI: The last approved version of this historical standard is referenced on
10.1520/D4976-12. www.astm.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 ----------------------
D4976−12
D883 Terminology Relating to Plastics 2.2 Military Standard:
D1238 Test Method for Melt Flow Rates of Thermoplastics MIL-STD-105 Sampling Procedures and Tables for Inspec-
4
tion by Attributes
by Extrusion Plastometer
D1248 Specification for Polyethylene Plastics Extrusion
2.3 DOT Standard:
Materials for Wire and Cable F
...

This document is not anASTM standard and is intended only to provide the user of anASTM 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:D4976–06 Designation: D4976 – 12
Standard Specification for
1
Polyethylene Plastics Molding and Extrusion Materials
This standard is issued under the fixed designation D4976; 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 Department of Defense.
INTRODUCTION
This specification is not intended for the selection of materials, but only as a means to call out
plastic materials to be used for the manufacture of parts.The selection of these materials is to be made
by personnel with expertise in the plastics field where the environment, inherent properties of the
materials, performance of the parts, part design, manufacturing process, and economics are
considered. This specification does not specify the source of the resin to be used for the fabrication
of any given article.
1. Scope*
1.1 This specification provides for the identification of polyethylene plastics molding and extrusion materials in such a manner
that the supplier and the user can agree on the acceptability of different commercial lots or shipments. The tests involved in this
specification are intended to provide information for identifying materials in accordance with the groups, classes, and grades
covered. It is not the function of this specification to provide specific engineering data for design purposes.
1.2 Other requirements may be necessary to identify particular characteristics important to specialized applications.These shall
be agreed upon between the user and the supplier, by using the suffixes given in Section 1.3.
1.3 Ethylene plastic materials, being thermoplastic, are reprocessable and recyclable (see Note 1). This specification allows for
the use of those ethylene plastic materials, provided that any specific requirements as governed by the producer and the end user
are met.
NOTE 1—See Guide D5033 for information and definitions related to recycled plastics.
1.4 The values stated in SI units are regarded as standard.
1.5 The following precautionary caveat pertains to the test method portion only, Section 12, of 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 and health practices and determine the applicability of regulatory limitations prior to use.
1.6 For information regarding plastic pipe materials see Specification D3350. For information regarding wire and cable
3
materials, see Specification D1248. For information on polyethylenes with densities below 0.910 g/cm , see Classification D5593.
NOTE 2—There is no similar or equivalent ISO standard.
2. Referenced Documents
2
2.1 ASTM Standards:
D257 Test Methods for DC Resistance or Conductance of Insulating Materials
D568 Method of Test for Rate of Burning and/or Extent and Time of Burning of Flexible Plastics in a Vertical Position
D618 Practice for Conditioning Plastics for Testing
D635 Test Method for Rate of Burning and/or Extent and Time of Burning of Plastics in a Horizontal Position
D638 Test Method for Tensile Properties of Plastics
D790 Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials
D792 Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement
1
This specification 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 Nov. 15, 2006. Published November 2006. Originally approved in 1995. Last previous edition approved in 2004 as D4976-04. DOI:
10.1520/D4976-06.
CurrenteditionapprovedApril1,2012.PublishedMay2012.Originallyapprovedin1995.Lastpreviouseditionapprovedin2006asD4976 - 06.DOI:10.1520/D4976-12.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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.
*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 ----------------
...

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1.1 This test method outlines the use of dynamic mechanical instrumentation in determining and reporting the rheological properties of thermoplastic resins and other types of molten polymers. The method is useful for determining the complex viscosity and other significant viscoelastic characteristics of such materials as a function of frequency, strain amplitude, temperature, and time. It is known that fillers and other additives influence rheological properties.  
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1.1 This classification system covers segmented block copolyether-ester elastomers suitable for molding and extrusion.  
1.2 This classification system allows for the use of segmented block copolyether-ester elastomers that are recycled provided that the requirements as stated in this classification system are met. The proportions of recycled material used, as well as the nature and amount of any contaminant, however, cannot be covered practically in this specification.  
1.3 The properties included in this classification system are those required to identify the compositions covered. It is possible that there are other requirements necessary to identify particular characteristics important to specialized applications. One way of specifying them is by using the suffixes as given in Section 5.  
1.4 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 is best 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.  
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.6 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 standard, ISO 20029-1, and ISO 20029-2 address the same subject matter, but differ in technical content.  
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 D3030-23(Test Method)
Standard Test Method for Volatile Matter (Including Water) of Vinyl Chloride Resins

SIGNIFICANCE AND USE
5.1 The quantity of volatile components in a vinyl chloride resin can be established by this test method. This test method does not identify the components.
SCOPE
1.1 This test method covers the quantitative determination of the volatile matter (including water) present in vinyl chloride resins.  
1.2 The values stated in SI units are to be regarded as 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: This test method is identical ISO 1269.  
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 D4878-23(Test Method)
Standard Test Methods for Polyurethane Raw Materials: Determination of Viscosity of Polyols

SIGNIFICANCE AND USE
4.1 These test methods are suitable for research or as quality control or specification tests.  
4.2 Viscosity measures the resistance of a fluid to uniformly continuous flow without turbulence or other forces.
SCOPE
1.1 These test methods (A and B) determine the viscosity of polyols in the range from 10 to 100 000 mPa·s(cP) at 25°C. Test Method A is a rotational procedure for determining dynamic viscosity. Test Method B is a general procedure for kinematic viscosity of transparent polyols. (See Note 1.)  
1.2 The values stated in SI units are to be regarded as the standard. Other equivalent units are provided because of current common usage.  
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: Test Method A is equivalent to ISO 3219. Test Method B is equivalent to ISO 3104.  
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 D3275-18(2023)(Classification)
Standard Classification System for E-CTFE-Fluoroplastic Molding, Extrusion, and Coating Materials

ABSTRACT
This classification system covers melt processible molding, extrusion, and coating materials of ethylene-chlorotrifluoroethylene (E-CTFE) fluoroplastics. The resin is a copolymer of ethylene and chlorotrifluoroethylene. The classification of ECTFE materials into groups in accordance with their physical appearance, and further into classes based on melt flow rate, is provided. The test specimens shall be subjected to tests to determine their melt flow rate, melting endotherm peak, specific gravity, tensile property, dielectric constant and dissipation factor, and oxygen index.
SCOPE
1.1 This classification system covers melt processible molding, extrusion, and coating materials of ethylene-chlorotrifluoroethylene (E-CTFE) fluoroplastics. The resin is a copolymer of ethylene and chlorotrifluoroethylene containing approximately 80 weight % of chlorotrifluoroethylene.  
1.2 The values stated in SI units, as detailed in IEEE/ASTM SI-10, are to be regarded as standard.  
1.3 The following precautionary statement 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: Although this classification system and ISO 20568-1 and ISO 20568-2 differ in approach or detail, data obtained using either are technically equivalent.  
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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