GB/T 1630.2-2023 focus on epoxy resin in the field of plastics. This part of the standard details the preparation process of crosslinking epoxy resin samples, from raw material selection to specific operation steps. At the same time, the method for measuring the performance of crosslinking epoxy resin is clearly defined, covering key indicators such as mechanical properties and thermal performance. Provide a unified specification for accurate research and control of crosslinking epoxy resin mass in scientific research and production, and help promote the rational application and technological progress of epoxy resin in the plastics industry and related fields.