T/SXJP 070-2023 Unplasticized polyvinyl chloride (PVC-U) multi-chamber high weather resistance profiles
T/SXJP 070-2023 Unplasticized polyvinyl chloride (PVC-U) multi-chamber high weather resistance profiles
Basic Information
Scope
Main technical content: 4 Classification and marking 4.1 Classification — 4.1.1 Color and process 4.1.2 Wall thickness of main profiles 4.1.3 Impact test of main profiles 4.1.4 Thermal insulation performance of main profiles 4.2 Marking 5 Requirements 5.1 Number of cavities The number of cavities in the cross-section of the main profiles shall be no less than 4, which ensures the energy-saving performance of the product from a structural perspective. 5.2 Quality of main profiles The weight of the main profiles per meter shall not be less than 97% of the nominal weight. 5.3 Physical and mechanical properties 5.4 Other indicators The appearance, dimensions and deviations of the profiles, linear deviations, heat transfer coefficient of the main profiles, and limits of harmful substances shall comply with the requirements specified in GB/T8814.