GB/T 35451.2-2018 Polypropylene(PP)structure-wall piping systems for underground drainage and sewerage—Part 2:Polypropylene spirally enwound structure-wall pipes

Scope

This part of GB/T 35451 specifies the terms and definitions, symbols and abbreviations, materials, pipe classification, structural types and connection methods, requirements, test methods, inspection rules and marking, transportation and storage of polypropylene (PP) wrapped structural wall pipes (hereinafter referred to as "pipes") used for underground drainage and sewage systems.
This part is applicable to structural wall pipes and pipe fittings (or solid wall pipes) made of polypropylene (PP) resin as the main raw material and polymer materials (generally polypropylene) as the auxiliary support structure, which are wrapped and molded and processed into finished products.
This part is applicable to unpressurized underground drainage and sewage systems made of polypropylene wrapped structural wall pipes used at a long-term operating temperature not exceeding 45 °C. Considering the chemical resistance and temperature resistance of the materials, it can also be used for unpressurized underground industrial drainage and sewage pipes.

Development Information

Referenced Standards

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