T/YNABEE 007-2024 Active

Main technical content: This standard specifies the terms and symbols, materials, product classification and marking, pipe structure and connection methods, requirements, test methods, inspection rules and marking, transportation, and storage of polyvinyl chloride (modified anhydrous phosphogypsum) nanocomposite double-wall corrugated pipes. Polyvinyl chloride (modified anhydrous phosphogypsum) nanocomposite double-wall corrugated pipes are made of polyvinyl chloride resin as the main raw material, modified anhydrous phosphogypsum as the main filler, and adding a suitable amount of inorganic nanoparticles, light stabilizers, etc. through blending and extrusion molding processing. The outer wall is a new type of pipe with an "M"-shaped closed corrugation. It is suitable for non-pressure municipal underground drainage, river regulation, farmland drainage, and road culvert pipes, and can also be used for non-pressure underground industrial wastewater discharge pipes.