GB/T 2951.42-2008 《Common test methods for insulating and sheathing materials of electric and optical cables - Part 42:Methods specific to polyethylene and polypropylene compounds - Tensile strength and elongation at break after conditioning at elevated temperature - Wrapping test after conditioning at elevated temperature - Wrapping test after thermal ageing in air - Measurement of mass increase - Long-term stability test - Test method for copper-catalyzed oxidative degradation》 Related products

GB/T 2951.42-2008 "General Test Methods for Cable and Optical Cable Insulation and Sheath Materials, Part 42: Special Test Methods for Polyethylene (PE) and Polypropylene (PP) Mixtures" specifies specific test methods for a variety of polyolefin insulation and sheath materials, including tensile strength and elongation at break after high temperature treatment, winding test after high temperature treatment, winding test after air heat aging, mass increase determination, long-term thermal stability test and copper catalytic oxidation degradation test methods. These tests are used to evaluate the performance of materials under various high temperature and aging conditions to ensure their Reliability and Stability in cable and optical cable applications. Miscellaneous related test methods are also referenced to support a comprehensive material performance assessment.