DB35/T 1673-2017 Technical specifications for modified polypropylene (PP) double-walled corrugated pipes for underground drainage and sewage discharge

Scope

This standard specifies the definition, symbols and abbreviations, raw materials, product classification and marking, pipe structure and connection methods, technical requirements, test methods, inspection rules and marking, transportation, and storage of modified polypropylene (PP) double-wall corrugated pipes (hereinafter referred to as PP double-wall corrugated pipes) processed by extrusion molding using polypropylene (PP) resin as the main material, with the addition of an appropriate amount of calcium sulfate whiskers, β-nucleating agents, and other modifying additives. This standard applies to underground drainage and sewage pipes with a long-term temperature not exceeding 60 °C.

Development Information

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