GB/T 9869.3-2025 in English

This standard specifies the methods for determining the vulcanization characteristics of rubber using a rotorless vulcanometer. It outlines the procedures, equipment requirements, and test conditions necessary to ensure consistent and reliable results. The standard covers the preparation of test specimens, the operation of the vulcanometer, and the interpretation of the obtained data. It also includes details on the calibration of instruments and the handling of test samples to maintain accuracy. The document provides guidance on the parameters that should be monitored during the vulcanization process, such as torque and time, to assess the curing behavior of rubber compounds. This standard is intended for use by manufacturers, researchers, and quality control personnel involved in the testing of rubber materials.