The testing of plastic pipes is primarily conducted by professional quality inspection and testing institutions, and is subject to random checks by market supervision and management departments. Testing activities adhere to national and industry standards.
For example, the Anhui Provincial Plastic Pipe and Fittings Product Quality Inspection and Testing Center has the capability to test approximately 70 types of products, and can comprehensively test and evaluate multiple items such as tensile yield strength, Vicat softening temperature, and hydrostatic strength.
Market supervision and management departments organize special supervision and random checks. For instance, in 2025, the Yancheng Municipal Market Supervision Bureau of Jiangsu Province commissioned the Nanjing Municipal Product Quality Supervision and Inspection Institute to conduct a municipal-level special supervision and random check of plastic pipe products.
Testing and random checks are conducted in accordance with national and industry standards and other relevant regulations. For example, the national standard "Thermoplastic Pipes for Fluid Transportation - Nominal Outer Diameter and Nominal Pressure" (GB/T 4217) is being revised (Project No. 20250343-T-607), with a project cycle of 16 months; the standard "Medical Flexible Polyvinyl Chloride Pipes" (GB/T 10010) also has a new revision plan (Project No. 20250470-t-607).
