T/GZAS 002-2021 Polyethylene (modified anhydrous calcium sulfate) W-type drainage pipe
T/GZAS 002-2021 Polyethylene (modified anhydrous calcium sulfate) W-type drainage pipe
Basic Information
Scope
Main technical content: No. Item Unit Test parameter requirements 1 Oven test/Test temperature: (110±2)°C No delamination or cracking 2 Bending modulus (MPa), Test temperature: 23°C±0.5°C ≥800 3 Oxidation induction time (min), Test temperature: 200°C (aluminum tray) ≥20 min 4 Density (kg/m3), Test temperature: 23°C±0.5°C ≤1180 5 Ring stiffness (kN/SN), Test temperature: 23°C±0.5°C ≥8 6 Impact performance, Test temperature: 23°C±0.5°C ≤10% 7 Environmental flexibility test, Test temperature: 23°C±0.5°C No cracking in the pipe, no separation of the two walls. No reverse bending in the inner wall 8 Creep ratio, Test temperature: 23°C±0.5°C ≤4% 9 Sealing performance of elastic sealing connection