GB/T 46827.1-2025 Active

This document specifies a naming system for methyl methacrylate-acrylonitrile-butadiene-styrene (MABS) thermoplastic materials, which serves as the basis for classification. Different types of MABS plastic materials are distinguished using a classification system based on the following specified characteristic performance values, as well as composition information, recommended applications and/or processing methods, important properties, additives, colorants, fillers, and reinforcing materials: a) Vicat softening temperature; b) Melt volume flow rate; c) Notched impact strength of simple beams; d) Tensile elastic modulus. This document applies to MABS materials primarily composed of a continuous phase of styrene (and/or substituted styrene), acrylonitrile, and methyl methacrylate copolymer, with butadiene as the dispersed phase. This document applies to unmodified or modified MABS materials, typically in the form of powders, granules, or crushed particles, which may have been modified with colorants, additives, or fillers. This document does not imply that materials with the same name must have the same performance. It does not provide the engineering data, performance data, or process parameters needed to describe the special applications and/or processing methods of the materials. When necessary, these additional properties should be determined using the test methods specified in GB/T 46827.2.