T/SCJC P02-2025 Active Group standards

T/SCJC P02-2025 Modified Polyvinyl Chloride（PVMK）Double Wall corrugated pipe for underground drainage

Publish Date: 2025-08-14 Implement Date: 2025-08-21 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/SCJC P02-2025

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Other building materials

Publish Date: 2025-08-14

Implement Date: 2025-08-21

Scope

This standard specifies the definition, symbols, materials, classification, marking, pipe structure and connection, technical requirements, test methods, inspection rules, marking, transportation, and storage of modified polyvinyl chloride double-wall corrugated pipes (hereinafter referred to as "pipes") for underground drainage, which are mainly made of modified polyvinyl chloride plastic modified with polymer materials and extruded into shape. This standard applies to unpressurized underground drainage pipes used in municipalities, residential areas, sponge cities, etc. Communication cable conduits can also be used for reference. Considering the material's chemical resistance and temperature resistance, it can also be used for unpressurized industrial wastewater pipes. 7. Technical Requirements 7.1 Color The inner and outer layers of the pipes should be uniform in color, and the color shall be determined by negotiation between the supplier and the buyer. 7.2 Appearance The inner and outer walls of the pipes should not have bubbles, cracks, decomposition discoloration lines, obvious impurities, or irregular corrugations. The inner wall of the pipes should be smooth, and the ends of the pipes should be flat and perpendicular to the axis. The inner and outer walls of the valleys of the pipes should be tightly welded and should not show any separation. 7.3 Specifications and Dimensions The length of the pipes is generally 6m, but it can also be determined by negotiation between the supplier and the buyer. The length should not have a negative deviation. The specifications of the pipes are expressed in nominal sizes DN/ID or DN/OD (see Tables 4 and 5). 7.4 Physical and Mechanical Performance Requirements The physical and mechanical performance should comply with the provisions of Table 6. 7.5 System Applicability (Sealing Performance of Elastic Sealing Rings) After the pipes are connected, they should pass the sealing test, as shown in Table 7.