ASTM D4349-22

Classification System and Basis for Specification for Polyphenylene Ether (PPE) Materials

SCOPE
1.1 This classification system covers the basic polymers and copolymers known as polyphenylene ethers and polyphenylene oxides, as well as filled, modified, and reinforced versions. Recycled materials are included in this standard as Class 5 of Table PPE.
Note 1: The addition to the natural polymer or copolymer of pigments, colorants, or other additives can cause the final composition to no longer meet the requirements specified for the natural polymer or copolymer.
Note 2: The preferred abbreviation for polyphenylene ether is PPE, as noted in Terminology D1600.  
1.2 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 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 standard.  
1.3 There may be other requirements necessary to identify particular characteristics important to specific applications. These are to be specified by using the suffixes described in Section 5.  
1.4 The values stated in SI units are to be regarded as standard.  
Note 3: There is no known ISO equivalent to this standard.  
1.5 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-Jun-2022
• ICS: 83.080.20 - Thermoplastic materials
• Technical Committee: D20 - Plastics
• Drafting Committee: D20.15 - Thermoplastic Materials

Relations

• Refers: ASTM D883-24 - Standard Terminology Relating to Plastics
• Effective Date: 01-Feb-2024
• Refers: ASTM D883-23 - Standard Terminology Relating to Plastics
• Effective Date: 01-Nov-2023
• Refers: ASTM D883-20 - Standard Terminology Relating to Plastics
• Effective Date: 01-Jan-2020
• Refers: ASTM D883-19c - Standard Terminology Relating to Plastics
• Effective Date: 01-Aug-2019
• Refers: ASTM D883-19a - Standard Terminology Relating to Plastics
• Effective Date: 15-Apr-2019
• Refers: ASTM D883-19 - Standard Terminology Relating to Plastics
• Effective Date: 01-Feb-2019
• Refers: ASTM D883-18a - Standard Terminology Relating to Plastics
• Effective Date: 01-Dec-2018
• Refers: ASTM D883-18 - Standard Terminology Relating to Plastics
• Effective Date: 01-Nov-2018
• Refers: ASTM D648-18 - Standard Test Method for Deflection Temperature of Plastics Under Flexural Load in the Edgewise Position
• Effective Date: 01-Apr-2018
• Refers: ASTM D1600-18 - Standard Terminology for Abbreviated Terms Relating to Plastics (Withdrawn 2024)
• Effective Date: 01-Jan-2018
• Refers: ASTM D883-17 - Standard Terminology Relating to Plastics
• Effective Date: 15-Aug-2017
• Refers: ASTM D790-17 - Standard Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials
• Effective Date: 01-Jul-2017
• Refers: ASTM D790-15 - Standard Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials
• Effective Date: 01-Dec-2015
• Refers: ASTM D790-15e1 - Standard Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials
• Effective Date: 01-Dec-2015
• Refers: ASTM D3892-15 - Standard Practice for Packaging/Packing of Plastics
• Effective Date: 01-Sep-2015

Overview

ASTM D4349-22 is the international standard classification system and basis for specification for polyphenylene ether (PPE) materials, including basic polymers, copolymers, filled, modified, reinforced, and recycled versions. Developed by ASTM Committee D20 on Plastics, this standard establishes a clear structure for designating various types and grades of PPE materials used in the fabrication of end items or parts. While not intended for material selection, it enables consistent identification and specification of PPE compounds, supporting industry requirements for quality and traceability.

Key Topics

• Classification Framework: ASTM D4349-22 divides polyphenylene ether (PPE) materials into groups based on polymer composition, reinforcement, and modification. It further sub-categorizes them by class and grade.
• Reinforced and Modified Grades: The standard addresses a wide range of PPE formulations, accounting for variations such as glass, mineral, aramid, and other reinforcements, as well as modifications using additives and recycled polymers.
• Specification Structure: Standardized callout structure ensures that PPE materials are correctly and succinctly identified, including composition, reinforcement percentage, and property requirements.
• Suffixes for Additional Properties: Custom properties or additional characteristics can be specified through suffixes, allowing further customization for unique application demands.
• Testing and Inspection: ASTM D4349-22 references standard test methods for mechanical properties, including tensile strength, flexural modulus, impact resistance, and heat deflection temperature, ensuring robust and consistent quality control.

Applications

ASTM D4349-22 is widely used across industries that utilize polyphenylene ether materials. PPE's key properties-including high strength-to-weight ratio, dimensional stability, and resistance to heat, chemicals, and moisture-make it a preferred material in applications such as:

• Electrical and Electronic Components: PPE’s excellent dielectric properties and flame retardancy are valued in housings, connectors, and insulators.
• Automotive Parts: Used for structural and under-the-hood components requiring thermal stability and impact resistance.
• Industrial Equipment: PPE materials are specified for gears, pump components, and valve parts due to their mechanical robustness.
• Consumer Goods: PPE is chosen where durability and stability are essential, for example, in appliances, power tools, and sporting goods.
• Recycled Plastics: The inclusion of a classification for recycled PPE supports sustainability initiatives while maintaining product performance standards.

Related Standards

Implementing ASTM D4349-22 may also involve reference to other important standards, including:

• ASTM D4000: General classification system for plastic materials.
• ASTM D256: Test methods for impact resistance.
• ASTM D638: Tensile properties testing.
• ASTM D790: Flexural properties for plastics and electrical insulating materials.
• ASTM D648: Heat deflection temperature testing.
• UL 94: Flammability testing for plastic materials in devices and appliances.
• ISO 3451-1: Ash content determination methods (where applicable).
• ASTM D1600: Terminology for abbreviated terms related to plastics.
• ASTM D618: Standards for conditioning plastics for testing.
• ASTM D3892: Practice for packaging and packing of plastics.

Practical Value

By standardizing the classification and specification of PPE materials, ASTM D4349-22:

• Enhances supply chain consistency for manufacturers, specifiers, and end-users.
• Streamlines quality assurance and inspection through defined property requirements and test methods.
• Supports the use of recycled materials, advancing circular economy and environmental goals.
• Provides a universal language for specifying PPE type, composition, and properties, minimizing misunderstandings in global business.
• Ensures that products meet the performance demands of critical applications across a range of industries.

For organizations working with polyphenylene ether or requiring certification for PPE materials, ASTM D4349-22 is an essential standard for ensuring material traceability, consistency, and compliance.

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:D4349 −22
Classification System and Basis for Specification for
Polyphenylene Ether (PPE) Materials
This standard is issued under the fixed designation D4349; 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* 2. Referenced Documents
1.1 This classification system covers the basic polymers and
2.1 ASTM Standards:
copolymersknownaspolyphenyleneethersandpolyphenylene
D256 Test Methods for Determining the Izod Pendulum
oxides, as well as filled, modified, and reinforced versions.
Impact Resistance of Plastics
Recycled materials are included in this standard as Class 5 of
D618 Practice for Conditioning Plastics for Testing
Table PPE.
D638 Test Method for Tensile Properties of Plastics
D648 Test Method for Deflection Temperature of Plastics
NOTE 1—The addition to the natural polymer or copolymer of
Under Flexural Load in the Edgewise Position
pigments, colorants, or other additives can cause the final composition to
no longer meet the requirements specified for the natural polymer or
D790 Test Methods for Flexural Properties of Unreinforced
copolymer.
and Reinforced Plastics and Electrical Insulating Materi-
NOTE 2—The preferred abbreviation for polyphenylene ether is PPE, as
als
noted in Terminology D1600.
D792 Test Methods for Density and Specific Gravity (Rela-
1.2 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.
D1600 Terminology forAbbreviatedTerms Relating to Plas-
It is not intended for the selection of materials. Material
tics
selection should be made by those having expertise in the
D3892 Practice for Packaging/Packing of Plastics
plastic field after careful consideration of the design and the
D4000 Classification System for Specifying Plastic Materi-
performance required of the part, the environment to which it
als
will be exposed, the fabrication process to be employed, the
D5630 Test Method forAsh Content in Plastics
(Withdrawn
costsinvolved,andtheinherentpropertiesofthematerialother
2022)
than those covered by this standard.
D7209 Guide for Waste Reduction, Resource Recovery, and
1.3 There may be other requirements necessary to identify
Use of Recycled Polymeric Materials and Products (With-
particular characteristics important to specific applications.
drawn 2015)
These are to be specified by using the suffixes described in
E29 Practice for Using Significant Digits in Test Data to
Section 5.
Determine Conformance with Specifications
1.4 The values stated in SI units are to be regarded as
2.2 Underwriters Laboratories:
standard.
UL 94 Standards for Tests for Flammability for Parts in
Devices and Appliances
NOTE 3—There is no known ISO equivalent to this standard.
2.3 ISO Standards:
1.5 This international standard was developed in accor-
ISO 3451-1 Plastics—Determination of ash—Part 1: Gen-
dance with internationally recognized principles on standard-
eral methods
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
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.
1 3
ThisclassificationsystemisunderthejurisdictionofASTMCommitteeD20on The last approved version of this historical standard is referenced on
Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic www.astm.org.
Materials. Available from Underwriters Laboratories (UL), 2600 N.W. Lake Rd., Camas,
Current edition approved July 1, 2022. Published July 2022. Originally approved WA 98607-8542, http://www.ul.com.
in 1989. Last previous edition approved in 2016 as D4349 - 16. DOI: 10.1520/ Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
D4349-22. 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
D4349−22
A B
TABLE 1 Reinforcement-Filler, Symbols, and Tolerances
3. Terminology
Symbol Material Tolerance
3.1 The terminology used in this classification is in accor-
C Carbon and graphite ±2 %
D Alumina trihydrate ±2 %
dance with Terminologies D883 and D1600.
EClay ±2%
3.2 The polyphenylene ether materials will be designated
F Cellulose ±2 %
G Glass ±2 %
PPE as specified in Terminology D1600.
H Aramid ±2 %
J Boron ±2 %
4. Classification K Calcium carbonate ±2 %
L Lubricants Depends upon material
4.1 Polyphenylene ether-based materials are classified into
(for example: PTFE, and process—to be
graphite) specified.
groups according to their compositions. These groups are
M Mineral ±2 %
subdivided into classes and grades, as shown in Basic Property
N Natural organic ±2 %
Table PPE.
(for example: cotton,
sisal, hemp, flax)
NOTE 4—An example of this classification system is as follows:PMica ±2%
The specification ASTM D4349 PPE 0223 would indicate: Q Silica ±2 %
R Combinations of ±3 %
PPE = polyphenylene ether,
reinforcements and/or
02 = polystyrene-modified material (Group),
filters
2 = flame retarded (Class Description), and
A
3 = requirements given in Table PPE. Ash content of filled and/or reinforced materials is to be determined using either
Test Method D5630 or ISO 3451-1 where applicable.
B
4.1.1 Reinforced, filled, and lubricated versions of PPE
Additional symbols will be added to this table as required.
materialsareclassifiedaccordingtothereinforcementusedand
NOTE 5—This part of the system uses the type and percentage of
thenominallevel,byweightpercent,ofthereinforcement.The
additives, fillers, and reinforcements to designate the modification of the
grade is identified by a single letter that indicates the filler or
basic material. The types and percentages are sometimes shown on the
reinforcement used and two digits that indicate the nominal supplier’s technical data sheet. If necessary, additional control of these
compositional variables can be accomplished using the suffix part of the
quantity in percent by weight. Thus, a grade containing 15 %
system, Section 5.
glass reinforcement would be indicated by PPE0110 G15. This
NOTE 6—Materials containing reinforcements or fillers, or both, at
callout indicates:
nominal levels not in multiples of five are included in the nearest grade
PPE = polyphenylene ether ___ as found in Terminology D1600,
designation. For example, a material with a nominal glass fiber level of
01 = unmodified (group),
33 % is included with Grade G35 as shown in 4.1.1.
1 = general purpose (class),
4.1.1.1 Although the values listed are necessary to include
0 = other (grade), and
G15 = 15 % glass reinforcement
the range of properties available in existing materials, not
The reinforcement letter designations and associated toler- every possible combination of the properties exist or can be
ance levels are shown in Table 1. obtained.
TABLE PPE Requirements for Polyphenylene Ether (PPE) Materials
A
NOTE 1—Values given are for natural materials only. Other colors can be different.
Tensile Flexural Izod
Heat Deflection, min
Specific
Strength, Modulus, Impact,
Grade De- Gravity,
B B
at 1.82 at 0.455
, C , C B, D
Group Description Class Description
D638, D790, D256,
scription ASTM
MPa, MPa,
MPa, MPa, J/m,
B B D792,min
D648, °C D648, °C
min min min
E
01 Unmodified 1 general purpose 0 other
F E
2 flame retarded 0 other
E
0 other 0 other
G
02 PS modified materials 1 general purpose 1 90 N/A 1.03 32 1750 265
G
2 100 N/A 1.03 38 1900 240
G
3 100 N/A 1.03 44 2150 185
G
4 110 N/A 1.04 55 2300 160
G
5 130 N/A 1.05 57 2300 160
0 other . . . . . .
F G
2 flame retarded 167 N/A 1.06 36 2200 190
G
280 N/A 1.07 40 2250 130
G
385 N/A 1.07 48 2350 100
G
4 105 N/A 1.07 55 2350 160
G
5 125 N/A 1.08 60 2500 160
0 other . . . . . .
0 other 0 other . . . . . .
G
03 PA modified materials 1 general purpose 1 N/A 145 1.05 50 2000 170
G
2N/A 155 1.05 50 2000 160
G
3N/A 170 1.05 50 1800 530
G
4N/A 180 1.05 55 2000 185
G
5N/A 195 1.05 58 2200 160
0 other . . . . . .
F E
2 flame retarded 0 other
0 other 0 other . . . . . .
D4349−22
Tensile Flexural Izod
Heat Deflection, min
Specific
Strength, Modulus, Impact,
Grade De- Gravity,
B B
at 1.82 at 0.455
, C , C B, D
Group Description Class Description
D638, D790, D256,
scription ASTM
MPa, MPa,
MPa, MPa, J/m,
B B
D792,min
D648, °C D648, °C min min min
04 Other 1 general purpose 0 other . . . . .
F
2 flame retarded 0 other . . . . .
0 other 0 other . . . . .
05 Rework modified 1 general purpose 0 other . . . . .
F
2 flame retarded 0 other . . . . .
0 other 0 other . . . . .
A
Use Tables A and B where necessary for colored materials.
B
See Table 2 for drying and molding conditions. Table 3 for test specimen sizes.
C
MPa × 145 = psi.
D
J ⁄m × 0.01873 = ft·lbf ⁄in.
E
Unfilled materials currently not available. Use Table A.
F
Flammability ratings determined in accordance with UL 94.
G
N ⁄A—Not applicable for grade description.
TABLE A Reinforced Polyphenylene Ether Materials, Details Requirements
Designation Property Cell Limits
Order Number
0 1 23 45 6 7 8 9
A
1 Heat deflection temperature, unspecified 100 110 120 130 140 150 160 170 specify value
B
D648, 1.82 MPa, °C, min
A
2 Heat deflection temperature, unspecified 180 190 200 210 220 230 240 250 specify value
B
D648, 0.455 MPa, °C, min
3 Tensile strength, unspecified 45 55 65 80 100 120 140 160 specify value
B C
D638, MPa, min
4 Flexural modulus, unspecified 2000 3000 4000 5000 6000 7500 9000 10 500 specify value
B C
D790, MPa, min
B
5 Izod impact, D256, unspecified 25 50 75 100 125 150 200 250 specify value
D
J/m, min
A
For specifying HDT use the “order number” corresponding to the appropriate test conditions for the material being defined. It is intended that one or the other of these
requirements be used unless specific agreement between the supplier and the user requires both.
B
See Table 3 for test specimen sizes.
C
MPa × 145 = psi.
D
J ⁄m × 0.01873 = f·lbf ⁄in.
TABLE B Unreinforced Polyphenylene Ether Materials, Details Requirements
Designation Property Cell Limits
Order
0 1 2 3456 7 8 9
Number
A
1 Heat deflection temperature, unspecified 65 75 85 95 105 115 125 135 specify value
B
D648, 1.82 MPa, °C, min
A
2 Heat deflection temperature, unspecified 125 135 145 155 165 175 185 195 specify value
B
D648, 0.455 MPa, °C, min
3 Tensile strength, unspecified 30 35 40 45 50 55 60 65 specify value
B C
D638, MPa, min
4 Flexural modulus, unspecified 1500 1800 2100 2400 2700 3000 3300 3600 specify value
B C
D790, MPa, min
B
5 Izod impact, D256, unspecified 100 150 200 250 300 4
...

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: D4349 − 16 D4349 − 22
Classification System and Basis for Specification for
Polyphenylene Ether (PPE) Materials
This standard is issued under the fixed designation D4349; 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 the basic polymers and copolymers known as polyphenylene ethers and polyphenylene
oxides, as well as filled, modified, and reinforced versions. Recycled materials are included in this standard as Class 5 of Table
PPE.
NOTE 1—Addition The addition to the natural polymer or copolymer of pigments, colorants, or other additives can cause the final composition to no longer
meet the requirements specified for the natural polymer or copolymer.
NOTE 2—The preferred abbreviation for polyphenylene ether is PPE, as noted in Terminology D1600.
1.2 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 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 standard.
1.3 There may be other requirements necessary to identify particular characteristics important to specific applications. These are
to be specified by using the suffixes described in Section 5.
1.4 The values stated in SI units are to be regarded as standard.
NOTE 3—There is no known ISO equivalent to this standard.
1.5 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
2.1 ASTM Standards:
D256 Test Methods for Determining the Izod Pendulum Impact Resistance of Plastics
D618 Practice for Conditioning Plastics for Testing
D638 Test Method for Tensile Properties of Plastics
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 Sept. 1, 2016July 1, 2022. Published September 2016July 2022. Originally approved in 1989. Last previous edition approved in 20102016 as
D4349 - 10.D4349 - 16. DOI: 10.1520/D4349-16.10.1520/D4349-22.
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
D4349 − 22
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
D1600 Terminology for Abbreviated Terms Relating to Plastics
D3892 Practice for Packaging/Packing of Plastics
D4000 Classification System for Specifying Plastic Materials
D5630 Test Method for Ash Content in Plastics (Withdrawn 2022)
D7209 Guide for Waste Reduction, Resource Recovery, and Use of Recycled Polymeric Materials and Products (Withdrawn
2015)
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
2.2 Underwriters Laboratories:
UL 94 Standards for Tests for Flammability for Parts in Devices and Appliances
2.3 ISO Standards:
ISO 3451-1 Plastics—Determination of ash—Part 1: General methods
3. Terminology
3.1 The terminology used in this classification is in accordance with Terminologies D883 and D1600.
3.2 The polyphenylene ether materials will be designated PPE as specified in Terminology D1600.
The last approved version of this historical standard is referenced on www.astm.org.
Available from Underwriters Laboratories (UL), 2600 N.W. Lake Rd., Camas, WA 98607-8542, http://www.ul.com.
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
D4349 − 22
4. Classification
4.1 Polyphenylene ether-based materials are classified into groups according to their compositions. These groups are subdivided
into classes and grades, as shown in Basic Property Table PPE.
NOTE 4—An example of this classification system is as follows:
The specification ASTM D4349 PPE 0223 would indicate:
PPE = polyphenylene ether,
02 = polystyrene-modified material (Group),
2 = flame retarded (Class Description), and
3 = requirements given in Table PPE.
4.1.1 Reinforced, filled, and lubricated versions of PPE materials are classified according to the reinforcement used and the
nominal level, by weight percent, of the reinforcement. The grade is identified by a single letter that indicates the filler or
reinforcement used and two digits that indicate the nominal quantity in percent by weight. Thus, a grade containing 15 % glass
reinforcement would be indicated by PPE0110 G15. This callout indicates:
PPE = polyphenylene ether ___ as found in Terminology D1600,
01 = unmodified (group),
1 = general purpose (class),
0 = other (grade), and
G15 = 15 % glass reinforcement
The reinforcement letter designations and associated tolerance levels are shown in Table 1.
D4349 − 22
A B
TABLE 1 Reinforcement-Filler, Symbols, and Tolerances
Symbol Material Tolerance
C Carbon and graphite ±2 %
D Alumina trihydrate ±2 %
E Clay ±2 %
F Cellulose ±2 %
G Glass ±2 %
H Aramid ±2 %
J Boron ±2 %
K Calcium carbonate ±2 %
L Lubricants Depends upon material and process—to be
(for example: PTFE, graphite) specified.
M Mineral ±2 %
N Natural organic ±2 %
(for example: cotton, sisal, hemp, flax)
P Mica ±2 %
Q Silica ±2 %
R Combinations of reinforcements and/or filters ±3 %
A
Ash content of filled and/or reinforced materials is to be determined using either Test Method D5630D5630 or ISO 3451-1 where applicable.
B
Additional symbols will be added to this table as required.
NOTE 5—This part of the system uses the type and percentage of additives, fillers, and reinforcements to designate the modification of the basic material.
The types and percentages are sometimes shown on the supplierssupplier’s technical data sheet. If necessary, additional control of these compositional
variables can be accomplished using the suffix part of the system, Section 5.
NOTE 6—Materials containing reinforcements or fillers, or both, at nominal levels not in multiples of five are included in the nearest grade designation.
For example, a material with a nominal glass fiber level of 33 % is included with Grade G35 as shown in 4.1.1.
4.1.1.1 Although the values listed are necessary to include the range of properties available in existing materials, not every
possible combination of the properties exist or can be obtained.
TABLE PPE Requirements for Polyphenylene Ether (PPE) Materials
A
NOTE 1—Values given are for natural materials only. Other colors can be different.
Tensile Flexural Izod
Heat Deflection, min
Specific
Strength, Modulus, Impact,
Grade De- Gravity,
B B
at 1.82 at 0.450.455
, C , C B, D
Group Description Class Description
D638, D790, D256,
scription ASTM
MPa, MPa,
MPa, MPa, J/m,
B B D792, min
D648, °C D648, °C
min min min
E
01 Unmodified 1 general purpose 0 other
F E
2 flame retarded 0 other
E
0 other 0 other
G
02 PS modified materials 1 general purpose 1 90 N/A 1.03 32 1750 265
G
2 100 N/A 1.03 38 1900 240
G
3 100 N/A 1.03 44 2150 185
G
4 110 N/A 1.04 55 2300 160
G
5 130 N/A 1.05 57 2300 160
0 other . . . . . .
F G
2 flame retarded 1 67 N/A 1.06 36 2200 190
G
2 80 N/A 1.07 40 2250 130
G
3 85 N/A 1.07 48 2350 100
G
4 105 N/A 1.07 55 2350 160
G
5 125 N/A 1.08 60 2500 160
0 other . . . . . .
0 other 0 other . . . . . .
G
03 PA modified materials 1 general purpose 1 N/A 145 1.05 50 2000 170
G
2 N/A 155 1.05 50 2000 160
G
3 N/A 170 1.05 50 1800 530
G
4 N/A 180 1.05 55 2000 185
G
5 N/A 195 1.05 58 2200 160
0 other . . . . . .
F E
2 flame retarded 0 other
0 other 0 other . . . . . .
04 Other 1 general purpose 0 other . . . . .
F
2 flame retarded 0 other . . . . .
0 other 0 other . . . . .
05 Rework modified 1 general purpose 0 other . . . . .
F
2 flame retarded 0 other . . . . .
0 other 0 other . . . . .
D4349 − 22
A
Use Tables A and B where necessary for colored materials.
B
See Table 2 for drying and molding conditions. Table 3 for test specimen sizes.
C
MPa × 145 = psi.
D
J ⁄m × 0.01873 = ft·lbf ⁄in.
E
Unfilled materials currently not available. Use Table A.
F
Flammability ratings determined in accordance with UL 94.
G
N ⁄A—Not applicable for grade description.
TABLE A Reinforced Polyphenylene Ether Materials, Details Requirements
Designation Property Cell Limits
Order Number
0 1 2 3 4 5 6 7 8 9
A
1 Heat deflection temperature, unspecified 100 110 120 130 140 150 160 170 specify value
B
D648, 1.82 MPa, °C, min
A
2 Heat deflection temperature, unspecified 180 190 200 210 220 230 240 250 specify value
B
D648, 0.45 MPa, °C, min
B
D648, 0.455 MPa, °C, min
3 Tensile strength, unspecified 45 55 65 80 100 120 140 160 specify value
B C
D638, MPa, min
4 Flexural modulus, unspecified 2000 3000 4000 5000 6000 7500 9000 10 500 specify value
B C
D790, MPa, min
B
5 Izod impact, D256, unspecified 25 50 75 100 125 150 200 250 specify value
D
J/m, min
A
For specifying HDT use the “order number” corresponding to the appropriate test conditions for the material being defined. It is intended that one or the other of these
requirements be used unless specific agreement between the supplier and the user requires both.
B
See Table 3 for test specimen sizes.
C
MPa × 145 = psi.
D
J ⁄m × 0.01873 = f·lbf ⁄in.
TABLE B Unreinforced Polyphenylene Ether Materials, Details Requirements
Designation Property Cell Limits
Order
0 1 2 3 4 5 6 7 8 9
Number
A
1 Heat deflection temperature, unspecified 65 75 85 95 105 115 125 135 specify value
B
D648, 1.82 MPa, °C, min
A
2 Heat deflection temperature, unspecified 125 135 145 155 165 175 185 195 specify value
B
D648, 0.45 MPa, °C, min
B
D648, 0.455 MPa, °C, min
3 Tensile strength, unspecified 30 35 40 45 50 55 60 65 specify value
B C
D638, MPa, min
4 Flexural modulus, unspecified 1500 1800 2100 2400 2700 3000 3300 3600 specify value
B C
D790, MPa, min
B
5 Izod impact, D256, unspecified 100 150 200 250 300 400 500 600 specify value
D
J/m, min
A
For specifying HDT use the “order number” corresponding to the appropriate test conditions for the material being defined. It is intended that one or the other of these
requirements be used unless specific agreement between the supplier and the user requires both.
B
See Table 3 for test specimen sizes.
C
MPa × 145 = psi.
D
J ⁄m × 0.01873 = ft·lbf ⁄in.
D4349 − 22
4.2 When the grade of the basic material is not known, or is not important, the use of “0” grade classification shall be used for
reinforc
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