ASTM D4673 - 02(2008)

    Standard Classification System for Acrylonitrile-Butadiene-Styrene (ABS) Plastics and Alloys Molding and Extrusion Materials

    Active Standard ASTM D4673 | Developed by Subcommittee: D20.15

    Book of Standards Volume: 08.02

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    This classification system covers only acrylonitrile-butadiene-styrene (ABS) materials and ABS alloys suitable for injection molding and extrusion. Some of these compositions may also be suitable for compression molding. Recycle ABS and alloys will be addressed in a separate standard. ABS materials, based on three or more monomers, are grouped rather than rigidly classified. These groups are then subdivided by class and then grades. Reinforced and lubricated versions of the ABS materials are classified. When the grade of the basic material is not known, or is not important, the use of "0" grade classification shall be used for reinforced materials in this system. The material composition shall be uniform and shall conform to the requirements specified. Test specimens and testing parameters for the materials shall conform to the requirements prescribed. The tensile strength at yield, modulus, Charpy impact, vicat softening point, heat deflection temperature, and glass content of glass-reinforced materials shall be tested to meet the requirements prescribed.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    1. Scope

    1.1 This classification system covers only ABS materials and ABS alloys suitable for injection molding and extrusion. Some of these compositions may also be suitable for compression molding. Recycle ABS and alloys will be addressed in a separate standard.

    1.2 This classification system is not intended for the selection of materials, but only as a means of calling out materials to be used in the manufacture of parts. Materials are to be selected by personnel with expertise in the plastics field where the economics, the environment to be encountered, the inherent properties of the materials, the part design, the part performance required, and the manufacturing process to be employed all enter into the selection.

    1.3 The properties included in this classification system 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 given in Section 5.

    1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

    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 and health practices and determine the applicability of regulatory limitations prior to use.

    Note 1—This classification system and ISO 2580 are technically equivalent for those tests contained in both standards.

    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    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

    D1003 Test Method for Haze and Luminous Transmittance of Transparent Plastics

    D1525 Test Method for Vicat Softening Temperature of Plastics

    D1999 Guide for Selection of Specimens and Test Parameters from ISO/IEC Standards

    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

    D5630 Test Method for Ash Content in Plastics

    E105 Practice for Probability Sampling of Materials

    ISO Standards

    ISO3167 Preparation and Use of Multipurpose Test Specimen

    ICS Code

    ICS Number Code 83.080.20 (Thermoplastic materials)

    UNSPSC Code

    UNSPSC Code 13102001(Acrylonitrile butadiene styrene ABS); 13102002(Acrylonitrile butadiene styrene ABS alloys)

    DOI: 10.1520/D4673-02R08

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