ASTM D4634-11a

Standard Classification System and Basis for Specification for Styrene-Maleic Anhydride Molding and Extrusion Materials (S/MA)

ABSTRACT
This specification covers styrene-maleic anhydride materials suitable for molding and extrusion. It does not however apply to alloys or blends of styrene-maleic anhydride materials with non-elastomeric thermoplastics. The materials shall be conditioned and tested for physical and mechanical properties in the standard laboratory atmosphere. Test specimens and testing parameters for the unreinforced and reinforced, filled, or lubricated materials shall conform to the tensile strength, flexural modulus, Izod impact strength, Vicat softening point, and heat deflection temperature requirements.
SCOPE
1.1 This classification system covers styrene-maleic anhydride materials suitable for molding or extrusion. This classification system does not apply to alloys or blends of styrene-maleic anhydride materials with non-elastomeric thermoplastics. Styrene-maleic anhydride materials, being thermoplastic, are reprocessable and recyclable. This classification system allows for the use of those materials provided that all the specific requirements of this classification system are met.
1.2 The properties included in this standard 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 the suffixes as given in Section 5.
1.3 This classification system and subsequent line call out (specification) are intended to provide means of calling out properties of plastic materials used in the fabrication of end items or parts. It is not intended for the selection of materials. Materials should be selected by those having expertise in the plastics 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, 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 the 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 limitations prior to use.
Note 1—There is no known ISO equivalent to this standard.

General Information

• Status: Historical
• Publication Date: 31-Aug-2011
• ICS: 83.080.20 - Thermoplastic materials
• Technical Committee: D20 - Plastics
• Drafting Committee: D20.15 - Thermoplastic Materials

Relations

• Replaces: ASTM D4634-11 - Standard Classification System and Basis for Specification for Styrene-Maleic Anhydride Molding and Extrusion Materials (S/MA)
• Effective Date: 01-Sep-2011
• Referred By: ASTM D4000-23 - Standard Classification System for Specifying Plastic Materials
• Effective Date: 01-Sep-2011

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: D4634 −11a
StandardClassification System and Basis for Specification for
Styrene-Maleic Anhydride Molding and Extrusion Materials
1
(S/MA)
This standard is issued under the fixed designation D4634; 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* health practices and determine the applicability of regulatory
limitations prior to use.
1.1 This classification system covers styrene-maleic anhy-
NOTE 1—There is no known ISO equivalent to this standard.
dride materials suitable for molding or extrusion. This classi-
fication system does not apply to alloys or blends of styrene-
2. Referenced Documents
maleic anhydride materials with non-elastomeric
2
2.1 ASTM Standards:
thermoplastics. Styrene-maleic anhydride materials, being
D256 Test Methods for Determining the Izod Pendulum
thermoplastic, are reprocessable and recyclable. This classifi-
Impact Resistance of Plastics
cation system allows for the use of those materials provided
D618 Practice for Conditioning Plastics for Testing
that all the specific requirements of this classification system
D638 Test Method for Tensile Properties of Plastics
are met.
D648 Test Method for Deflection Temperature of Plastics
1.2 The properties included in this standard are those Under Flexural Load in the Edgewise Position
D790 Test Methods for Flexural Properties of Unreinforced
required to identify the compositions covered. Other require-
ments necessary to identify particular characteristics important and Reinforced Plastics and Electrical Insulating Materi-
als
to specialized applications are to be specified by using the
suffixes as given in Section 5. D883 Terminology Relating to Plastics
D1525 Test Method for Vicat Softening Temperature of
1.3 This classification system and subsequent line call out
Plastics
(specification) are intended to provide means of calling out
D1600 Terminology forAbbreviatedTerms Relating to Plas-
properties of plastic materials used in the fabrication of end
tics
items or parts. It is not intended for the selection of materials.
D3641 Practice for Injection Molding Test Specimens of
Materials should be selected by those having expertise in the
Thermoplastic Molding and Extrusion Materials
plastics field after careful consideration of the design and the
D3892 Practice for Packaging/Packing of Plastics
performance required of the part, the environment to which it
D4000 Classification System for Specifying Plastic Materi-
will be exposed, the fabrication process to be employed, costs
als
involved, and the inherent properties of the material other than
E29 Practice for Using Significant Digits in Test Data to
those covered by this classification system.
Determine Conformance with Specifications
3
1.4 The values stated in SI units are to be regarded as the
2.2 Military Standard:
standard. MIL-STD-1916 DOD Preferred Methods for Acceptance of
Product
1.5 The following precautionary caveat pertains only to the
4
2.3 Underwriters Laboratories Standard:
test methods portion, Section 11, of this classification system.
UL 94 Standard for Tests for Flammability for Parts in
This standard does not purport to address all of the safety
Devices and Appliances
concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and
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
1
ThisclassificationsystemisunderthejurisdictionofASTMCommitteeD20on the ASTM website.
3
Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
Materials. Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://
Current edition approved Sept. 1, 2011. Published September 2011. Originally dodssp.daps.dla.mil.
4
approved in 1986. Last previous edition approved in 2011 as D4634 - 11. DOI: Available from Underwriters Laboratories (UL), 333 Pfingsten Rd.,
10.1520/D4634-11A. Northbrook, IL 60062-2096, http://www.ul.com.
*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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D4634 − 11a
NOTE 2—An example of this classification system is as follows: The
3. Terminology
designatio
...

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:D4634–11 Designation: D4634 – 11a
Standard Classification System and Basis for Specification for
Styrene-Maleic Anhydride Molding and Extrusion Materials
1
(S/MA)
This standard is issued under the fixed designation D4634; 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 styrene-maleic anhydride materials suitable for molding or extrusion. This classification
system does not apply to alloys or blends of styrene-maleic anhydride materials with non-elastomeric thermoplastics.
Styrene-maleic anhydride materials, being thermoplastic, are reprocessable and recyclable. This classification system allows for
the use of those materials provided that all the specific requirements of this classification system are met.
1.2 The properties included in this standard are those required to identify the compositions covered. Other requirements
necessarytoidentifyparticularcharacteristicsimportanttospecializedapplicationsaretobespecifiedbyusingthesuffixesasgiven
in Section 5.
1.3 This classification system and subsequent line call out (specification) are intended to provide means of calling out properties
of plastic materials used in the fabrication of end items or parts. It is not intended for the selection of materials. Materials should
be selected by those having expertise in the plastics 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, 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 the 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 limitations prior
to use.
NOTE 1—There is no known ISO equivalent to this standard.
2. Referenced Documents
2
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
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
D883 Terminology Relating to Plastics
D1525 Test Method for Vicat Softening Temperature of Plastics
D1600 Terminology for Abbreviated Terms Relating to Plastics
D3641 Practice for Injection Molding Test Specimens of Thermoplastic Molding and Extrusion Materials
D3892 Practice for Packaging/Packing of Plastics
D4000 Classification System for Specifying Plastic Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
3
2.2 Military Standard:
MIL-STD-105Sampling Procedures and Tables for Inspection by Attributes MIL-STD-1916 DOD Preferred Methods for
Acceptance of Product
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 AprilSept. 1, 2011. Published AprilSeptember 2011. Originally approved in 1986. Last previous edition approved in 20042011 as
D4634-04.D4634 - 11. DOI: 10.1520/D4634-11A.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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.
3
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://dodssp.daps.dla.mil.
*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 ----------------------
D4634 – 11a
4
2.3 Underwriters Laboratories Stand
...