T/GDSTT 1-2021 Flexible Sealing Self-Locking Interface Woven Solid Wall Drainage Pipe and Fittings Made of Polyethylene (PE)
T/GDSTT 1-2021 Flexible Sealing Self-Locking Interface Woven Solid Wall Drainage Pipe and Fittings Made of Polyethylene (PE)
Basic Information
Scope
Main technical content: This document specifies the terms and definitions, symbols, abbreviations, classification and marking, requirements, test methods, inspection rules, and marking, packaging, transportation, and storage of flexible sealed self-locking interface polyethylene wrapped solid-wall drainage pipes and fittings (hereinafter referred to as pipes). This document is applicable to the production, inspection, circulation, and use of polyethylene wrapped solid-wall drainage pipes and fittings for urban non-pressure drainage, which use the flexible sealed self-locking interface structure patent and have no less than 7 self-locking teeth on the joint teeth. The transmission medium temperature shall not exceed 45℃, and the pipes and fittings shall be laid by non-excavation and excavation methods