GB/T 21460.2-2025 Plastics—Styrene-acrylonitrile(SAN) moulding and extrusion materials—Part 2:Preparation of test specimens and determination of properties
GB/T 21460.2-2025 Plastics—Styrene-acrylonitrile(SAN) moulding and extrusion materials—Part 2:Preparation of test specimens and determination of properties
Basic Information
Scope
This document describes the methods for preparing and measuring the performance of styrene-acrylonitrile (SAN) molding and extrusion materials. It also describes the pretreatment of test materials and the adjustment of the samples' condition before testing. This document describes the methods and conditions for preparing SAN molding and extrusion material samples, as well as the methods for measuring the material's performance using these samples. It lists the appropriate and necessary properties and test methods for characterizing SAN molding and extrusion materials. These properties are selected from the GB/T 19467.1 general test methods. The document also lists other test methods that are widely used or of particular significance for SAN molding and extrusion materials, as well as the methods for measuring the named properties in Part 1. This document is applicable to the preparation and performance measurement of styrene-acrylonitrile (SAN) molding and extrusion material samples.