ASTM D788-16
Standard Classification System for Poly(Methyl Methacrylate) (PMMA) Molding and Extrusion Compounds

Standard No.

ASTM D788-16

Release Date

2016

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D788-16

Scope

1.1 The purpose of this classification system is to provide a method of adequately identifying PMMA materials using a system consistent with that of Classification System D4000. It further provides a means for specifying these materials by the use of a simple line callout designation.

1.2 This classification system covers poly(methyl methacrylate) molding and extrusion compounds. These compounds are polymers based on methyl methacrylate, and at least 708201;% of the polymer shall be polymerized from methyl methacrylate.

1.3 The properties in this classification system are those required to identify the compositions covered. Other requirements necessary to identify particular characteristics important to specific applications shall be described by using the suffixes as given in Section 5.

1.4 Acrylic molding and extrusion compounds are used frequently in applications where extreme clarity and the ability to retain that clarity and color under severe weathering and other environmental exposures are of primary significance. While the test specimen properties of this document extend to the evaluation of nonvirgin materials, the user must take precautions to ensure that parts made from these materials meet the desired end-use requirements. Accordingly, this specification allows for the use of those acrylic plastic materials that can be recycled, reconstituted, and reground provided the following:

1.4.1 The requirements as stated in this specification are met, and

1.4.2 The requirements of the particular end-use application are met.

1.5 This classification system and subsequent line callout (specification) are not intended for the selection of materials, but only as a means to call out plastic materials to be used for the manufacture of parts. The selection of these materials is to be made by personnel with expertise in the plastics field in which the environment, inherent properties of the materials, performance of the parts, part design, manufacturing process, and economics are considered.

Note 1: This classification system is similar to ISO 8257-1:1987 in title only. The technical content is significantly different.

1.6 The values stated in SI units are to be regarded as standard.

1.7 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.

ASTM D788-16 Referenced Document

• ASTM D1003 Standard Test Method for Haze and Luminous Transmittance of Transparent Plastics
• ASTM D1238 Standard Test Method for Flow Rates of Thermoplastics by Extrusion Plastometer
• ASTM D149 Standard Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials at Commercial Power Frequencies
• ASTM D150 Standard Test Methods for AC Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical Insulation
• ASTM D1600 Standard Terminology for Abbreviated Terms Relating to Plastics
• ASTM D257 Standard Test Methods for DC Resistance or Conductance of Insulating Materials
• 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
• ASTM D618 Standard Practice for Conditioning Plastics for Testing
• ASTM D883 Standard Terminology Relating to Plastics
• ASTM E29 Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
• ISO 1133 Plastics - Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastics; Technical Corrigendum 1
• ISO 179 Plastics — Determination of Charpy impact strength — Technical Corrigendum 1
• ISO 294 Plastics - Injection moulding of test specimens of thermoplastic materials
• ISO 306 Plastics — Thermoplastic materials — Determination of Vicat softening temperature (VST)
• ISO 3167 Plastics - Multipurpose test specimens
• ISO 489 Plastics — Determination of refractive index
• ISO 527 Plastics — Determination of tensile properties — Part 5: Test conditions for unidirectional fibre-reinforced plastic composites
• ISO 8257-1 Plastics - Poly(methyl methacrylate) (PMMA) moulding and extrusion materials - Part 1: Designation system and basis for specifications
• SAE J2412 Accelerated Exposure of Automotive Interior Trim Components Using a Controlled Irradiance Xenon-Arc Apparatus
• SAE J2527 Performance Based Standard for Accelerated Exposure of Automotive Exterior Materials Using A Controlled Irradiance Xenon-Arc Apparatus [Superseded: SAE J1960, SAE J1960, SAE J1960, SAE J1960, SAE J1960]
• SAE J576 PLASTIC MATERIALS FOR USE IN OPTICAL PARTS SUCH AS LENSES AND REFLECTORS OF MOTOR VEHICLE LIGHTING DEVICES

ASTM D788-16 history

• 2016 ASTM D788-16 Standard Classification System for Poly(Methyl Methacrylate) (PMMA) Molding and Extrusion Compounds
• 2014 ASTM D788-14 Standard Classification System for Poly40;Methyl Methacrylate41; 40;PMMA41; Molding and Extrusion Compounds
• 2012 ASTM D788-12 Standard Classification System for Poly(Methyl Methacrylate) (PMMA) Molding and Extrusion Compounds
• 2011 ASTM D788-11 Standard Classification System for Poly(Methyl Methacrylate) (PMMA) Molding and Extrusion Compounds
• 2006 ASTM D788-06 Standard Classification System for Poly(Methyl Methacrylate) (PMMA) Molding and Extrusion Compounds
• 2005 ASTM D788-05 Standard Classification System for Poly(Methyl Methacrylate) (PMMA) Molding and Extrusion Compounds
• 2004 ASTM D788-04 Standard Classification System for Poly(Methyl Methacrylate) (PMMA) Molding and Extrusion Compounds
• 2002 ASTM D788-02 Standard Classification System for Poly(Methyl Methacrylate) (PMMA) Molding and Extrusion Compounds
• 1996 ASTM D788-96 Standard Classification System for Poly(Methyl Methacrylate) (PMMA) Molding and Extrusion Compounds