ASTM D3935-21

Standard Classification System and Basis for Specification for Polycarbonate (PC) Unfilled and Reinforced Material

ABSTRACT
This specification covers unfilled and reinforced polycarbonate and polycarbonate copolymer materials suitable for injection molding, blow molding, and extrusion. Some of these compositions may also find use for compression molding or application from solution. Unfilled polycarbonate materials are classified into groups according to their composition. The groups are Group 01, Group 02, Group 03, Group 04, Group 05, and Group 06. These groups are subdivided into classes which are Class 0, Class 1, Class 2, Class 3, and Class 4 and these classes can be further be subdivided into grades which are Grade 1, Grade 2, Grade 3, Grade 4, Grade 5, Grade 6, Grade 7 and Grade 0. Different tests shall be conducted in order to determine the following properties of polymer materials: Izod impact strength, flexural modulus, tensile strength, and deflection temperature.
SCOPE
1.1 This classification system covers unfilled and reinforced polycarbonate and polycarbonate copolymer materials suitable for injection molding, blow molding, and extrusion. Some of these compositions may also find use for compression molding or application from solution. This classification system allows for the use of recycled materials provided that all specification requirements are met.  
1.2 The properties in this classification system are those required for identifying the compositions covered. Other requirements necessary for identifying particular characteristics important to specific applications are normally specified by using the suffixes in accordance with Section 5.  
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
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 should be made by those having expertise in the plastic field only after 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 in this standard.
Note 1: This classification system and ISO 21305-1 and ISO 21305-2 address the same subject matter, but differ in technical content.  
1.5 The following precautionary caveat pertains only to the test methods portion, Section 12, 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.  
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.

General Information

• Status: Published
• Publication Date: 30-Nov-2021
• ICS: 83.080.20 - Thermoplastic materials
• ICS: 83.120 - Reinforced plastics
• Technical Committee: D20 - Plastics
• Drafting Committee: D20.15 - Thermoplastic Materials

Standards Content (Sample)

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.
Designation:D3935 −21
Standard Classification System and Basis for Specification for
1
Polycarbonate (PC) Unfilled and Reinforced Material
This standard is issued under the fixed designation D3935; 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* 1.6 This international standard was developed in accor-
dance with internationally recognized principles on standard-
1.1 This classification system covers unfilled and reinforced
ization established in the Decision on Principles for the
polycarbonate and polycarbonate copolymer materials suitable
Development of International Standards, Guides and Recom-
for injection molding, blow molding, and extrusion. Some of
mendations issued by the World Trade Organization Technical
these compositions may also find use for compression molding
Barriers to Trade (TBT) Committee.
or application from solution. This classification system allows
for the use of recycled materials provided that all specification
2. Referenced Documents
requirements are met.
2
2.1 ASTM Standards:
1.2 The properties in this classification system are those
D256 Test Methods for Determining the Izod Pendulum
required for identifying the compositions covered. Other re-
Impact Resistance of Plastics
quirements necessary for identifying particular characteristics
D638 Test Method for Tensile Properties of Plastics
important to specific applications are normally specified by
D648 Test Method for Deflection Temperature of Plastics
using the suffixes in accordance with Section 5.
Under Flexural Load in the Edgewise Position
D790 Test Methods for Flexural Properties of Unreinforced
1.3 The values stated in SI units are to be regarded as
and Reinforced Plastics and Electrical Insulating Materi-
standard. No other units of measurement are included in this
als
standard.
D792 Test Methods for Density and Specific Gravity (Rela-
1.4 This classification system and subsequent line callout
tive Density) of Plastics by Displacement
(specification) are intended to provide a means of calling out
D883 Terminology Relating to Plastics
plastic materials used in the fabrication of end items or parts.
D1238 Test Method for Melt Flow Rates of Thermoplastics
It is not intended for the selection of materials. Material
by Extrusion Plastometer
selection should be made by those having expertise in the
D1600 Terminology forAbbreviatedTerms Relating to Plas-
plastic field only after consideration of the design and the
tics
performance required of the part, the environment to which it
D2584 Test Method for Ignition Loss of Cured Reinforced
will be exposed, the fabrication process to be employed, the
Resins
costsinvolved,andtheinherentpropertiesofthematerialother
D3892 Practice for Packaging/Packing of Plastics
than those covered in this standard.
D4000 Classification System for Specifying Plastic Materi-
NOTE 1—This classification system and ISO 21305-1 and ISO 21305-2
als
address the same subject matter, but differ in technical content.
D5630 Test Method for Ash Content in Plastics
1.5 The following precautionary caveat pertains only to the
E29 Practice for Using Significant Digits in Test Data to
test methods portion, Section 12, of this classification sys-
Determine Conformance with Specifications
tem. This standard does not purport to address all of the safety
E169 PracticesforGeneralTechniquesofUltraviolet-Visible
concerns, if any, associated with its use. It is the responsibility
Quantitative Analysis
3
of the user of this standard to establish appropriate safety,
2.2 ISO Standard:
health, and environmental practices and determine the appli-
ISO 21305-1 Plastics—Polycarbonate (PC) Moulding and
cability of regulatory limitations prior to use.
Extrusion Materials—Part 1: Designation—System and
1 2
This standard is under the jurisdiction of ASTM Committee D20 on Plastics For referenced ASTM standards, visit the ASTM website, www.astm.org, or
and is the direct responsibility of Subcommittee D20.15 on Thermoplastic Materi- contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
als. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Dec. 1, 2021. Published December 2021. Originally the ASTM website.
3
approved in 1980. Last previous edition approved in 2015 as D3935 - 15. DOI: Available fromAmerican National Standards Institut
...

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: D3935 − 15 D3935 − 21
Standard Classification System and Basis for Specification for
1
Polycarbonate (PC) Unfilled and Reinforced Material
This standard is issued under the fixed designation D3935; 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 unfilled and reinforced polycarbonate and polycarbonate copolymer materials suitable for
injection molding, blow molding, and extrusion. Some of these compositions may also find use for compression molding or
application from solution. This classification system allows for the use of recycled materials provided that all specification
requirements are met.
1.2 The properties in this classification system are those required for identifying the compositions covered. Other requirements
necessary for identifying particular characteristics important to specific applications are normally specified by using the suffixes
in accordance with Section 5.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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 should
be made by those having expertise in the plastic field only after 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 in this standard.
NOTE 1—This classification system and ISO 7391-1ISO 21305-1 and ISO 7391-2ISO 21305-2 address the same subject matter, but differ in technical
content.
1.5 The following precautionary caveat pertains only to the test methods portion, Section 12, of this classification system. This
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 safety, health, and healthenvironmental practices and determine the
applicability orof regulatory limitations prior to use.
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.
2. Referenced Documents
2
2.1 ASTM Standards:
D256 Test Methods for Determining the Izod Pendulum Impact Resistance of Plastics
1
This standard 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 15, 2015Dec. 1, 2021. Published June 2015December 2021. Originally approved in 1980. Last previous edition approved in 20092015 as
D3935 - 09.D3935 - 15. DOI: 10.1520/D3935-15.10.1520/D3935-21.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. 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

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D3935 − 21
D638 Test Method for Tensile Properties of Plastics
D648 Test Method for Deflection Temperature of Plastics Under Flexural Load in the Edgewise Position
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
D883 Terminology Relating to Plastics
D1238 Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer
D1600 Terminology for Abbreviated Terms Relating to Plastics
D2584 Test Method for Ignition Loss of Cured Reinforced Resins
D3892 Practice for
...