ASTM D4634-04

Standard Specification for Styrene-Maleic Anhydride 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 specification covers styrene-maleic anhydride materials suitable for molding or extrusion. This specification 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 specification allows for the use of those materials provided that all the specific requirements of this specification are met.
1.2 The properties included in this standard are those required to identify the compositions covered. There may be other requirements necessary to identify particular characteristics important to specialized applications. These will be agreed upon between the user and the supplier, by using the suffixes as given in Section .
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 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.Note 1
There is no equivalent or similar ISO standard for S/MA.

General Information

• Status: Historical
• Publication Date: 30-Sep-2004
• ICS: 83.080.20 - Thermoplastic materials
• Technical Committee: D20 - Plastics
• Drafting Committee: D20.15 - Thermoplastic Materials

Relations

• Replaces: ASTM D4634-99 - Standard Specification for Styrene-Maleic Anhydride Materials (S/MA)
• Effective Date: 01-Oct-2004
• Replaced By: ASTM D4634-11 - Standard Classification System and Basis for Specification for Styrene-Maleic Anhydride Molding and Extrusion Materials (S/MA)
• Effective Date: 01-Apr-2011
• Referred By: ASTM D4000-23 - Standard Classification System for Specifying Plastic Materials
• Effective Date: 01-Oct-2004

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 – 04
Standard Specification for
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Styrene-Maleic Anhydride Materials (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.
NOTE 1—There is no equivalent or similar ISO standard for S/MA.
1. Scope*
1.1 This specification covers styrene-maleic anhydride ma-
2. Referenced Documents
terials suitable for molding or extrusion. This specification
2
2.1 ASTM Standards:
does not apply to alloys or blends of styrene-maleic anhydride
D256 Test Methods for Determining the Izod Pendulum
materials with non-elastomeric thermoplastics. Styrene-maleic
Impact Resistance of Plastics
anhydride materials, being thermoplastic, are reprocessable
D618 Practice for Conditioning Plastics for Testing
and recyclable. This specification allows for the use of those
D638 Test Method for Tensile Properties of Plastics
materials provided that all the specific requirements of this
D648 Test Method for Deflection Temperature of Plastics
specification are met.
Under Flexural Load in the Edgewise Position
1.2 The properties included in this standard are those
D790 Test Methods for Flexural Properties of Unreinforced
required to identify the compositions covered. There may be
and Reinforced Plastics and Electrical Insulating Materials
other requirements necessary to identify particular character-
D883 Terminology Relating to Plastics
istics important to specialized applications. These will be
D1525 Test Method for Vicat Softening Temperature of
agreed upon between the user and the supplier, by using the
Plastics
suffixes as given in Section 5.
D1600 Terminology for Abbreviated Terms Relating to
1.3 This classification system and subsequent line call out
Plastics
(specification) are intended to provide means of calling out
D3641 Practice for Injection Molding Test Specimens of
properties of plastic materials used in the fabrication of end
Thermoplastic Molding and Extrusion Materials
items or parts. It is not intended for the selection of materials.
D3892 Practice for Packaging/Packing of Plastics
Materials should be selected by those having expertise in the
D4000 Classification System for Specifying Plastic Materi-
plastics field after careful consideration of the design and the
als
performance required of the part, the environment to which it
E29 Practice for Using Significant Digits in Test Data to
will be exposed, the fabrication process to be employed, costs
Determine Conformance with Specifications
involved, and the inherent properties of the material other than
3
2.2 Military Standard:
those covered by this classification system.
MIL-STD-105 Sampling Procedures and Tables for Inspec-
1.4 The values stated in SI units are to be regarded as the
tion by Attributes
standard.
4
2.3 Underwriters Laboratories Standard:
1.5 The following precautionary caveat pertains only to the
UL 94 Standard for Tests for Flammability for Parts in
test methods portion, Section 11, of this specification. This
Devices and Appliances
standard does not purport to address all of the safety concerns,
if any, associated with its use. It is the responsibility of the user
3. Terminology
of this standard to establish appropriate safety and health
3.1 General—For definitions of technical terms pertaining
practices and determine the applicability of regulatory limita-
to plastics used in this specification see Terminology D883.
tions prior to use.
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
1
This specification is under the jurisdiction of ASTM Committee D20 on 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. AvailablefromStandardizationDocumentsOrderDesk,Bldg.4SectionD,700
Current edition approved Oct. 1, 2004. Published October 2004. Originally Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
4
approved in 1986. Last previous edition approved in 1999 as D4634 - 99. DOI: Available from Underwriters Laboratories, Inc., Publications Stock, 333
10.1520/D4634-04. Pfingsten Road, Northbrook, IL 60062.
*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.
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D4634 – 04
4. Classification
S/MA = Styrene-maleic anhydride,
2 = injection-molding resin (group),
4.1 Styrene-maleic anh
...