GB/T 20221-2023
ActiveUnplasticized poly(vinyl chloride) (PVC-U) pipes for non-pressure buried drainage and sewerage systems
无压埋地排污、排水用硬聚氯乙烯（PVC-U）管材
Application Summary AI generated
This standard specifies the classification, requirements, test methods, and inspection rules for unplasticized poly(vinyl chloride) (PVC-U) pipes used in non-pressure buried drainage and sewerage systems. It is applied in municipal engineering, residential construction, and industrial wastewater treatment for underground gravity-flow pipelines that transport sewage, stormwater, or other non-pressurized effluents. The standard ensures product quality for corrosion-resistant, lightweight piping installed in soil environments without internal pressure.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.