ASTM D4634-16(2022)
Standard Classification System and Basis for Specification for Styrene-Maleic Anhydride Molding and Extrusion Materials (S/MA)

Standard No.

ASTM D4634-16(2022)

Release Date

2022

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D4634-16(2022)

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 styrenemaleic 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. NOTE 1—There is no known ISO equivalent to this standard. 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.

ASTM D4634-16(2022) Referenced Document

• ASTM D1525 Standard Test Method for Vicat Softening Temperature of Plastics
• ASTM D1600 Standard Terminology for Abbreviated Terms Relating to Plastics
• ASTM D256 Standard Test Methods for Determining the Izod Pendulum Impact Resistance of Plastics*， 2023-03-15 Update
• ASTM D3641 Standard Practice for Injection Molding Test Specimens of Thermoplastic Molding and Extrusion Materials
• ASTM D3892 Standard Practice for Packaging/Packing of Plastics
• ASTM D4000 Standard Classification System for Specifying Plastic Materials*， 2023-03-15 Update
• ASTM D618 Standard Practice for Conditioning Plastics for Testing
• ASTM D638 Standard Test Method for Tensile Properties of Plastics
• ASTM D648 Standard Test Method for Deflection Temperature of Plastics Under Flexural Load in the Edgewise Position*， 2024-04-22 Update
• ASTM D7209 Standard Guide for Waste Reduction, Resource Recovery, and Use of Recycled Polymeric Materials and Products *， 2024-04-22 Update
• ASTM D790 Standard Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials*， 2024-04-22 Update
• ASTM D883 Standard Terminology Relating to Plastics*， 2024-02-01 Update
• ASTM E29 Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

ASTM D4634-16(2022) history

• 2022 ASTM D4634-16(2022) Standard Classification System and Basis for Specification for Styrene-Maleic Anhydride Molding and Extrusion Materials (S/MA)
• 2016 ASTM D4634-16 Standard Classification System and Basis for Specification for Styrene-Maleic Anhydride Molding and Extrusion Materials (S/MA)
• 2011 ASTM D4634-11a Standard Classification System and Basis for Specification for Styrene-Maleic Anhydride Molding and Extrusion Materials (S/MA)
• 2011 ASTM D4634-11 Standard Classification System and Basis for Specification for Styrene-Maleic Anhydride Molding and Extrusion Materials (S/MA)
• 2004 ASTM D4634-04 Standard Specification for Styrene-Maleic Anhydride Materials (S/MA)
• 1999 ASTM D4634-99 Standard Specification for Styrene-Maleic Anhydride Materials (S/MA)