GB/T 18477.3-2019
ActiveUnplasticized polyvinyl chloride (PVC-U) structure wall pipeline system for underground soil waste and drainage—Part 3: Axial hollow-wall construction pipes
埋地排水用硬聚氯乙烯（PVC-U）结构壁管道系统 第3部分：轴向中空壁管材
Application Summary AI generated
This standard specifies the classification, requirements, test methods, and inspection rules for axial hollow-wall construction pipes made of unplasticized polyvinyl chloride (PVC-U) used in underground soil waste and drainage systems. It is applied in municipal engineering, building drainage, and industrial wastewater disposal contexts where pipes must withstand external soil loads and internal fluid pressure. The standard ensures product quality for buried drainage networks, such as stormwater and sewage pipelines, by defining structural integrity and performance criteria.
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