T/SDGSY 1-2018 Shandong Province Composite Materials Industry Group Standard - Fiber Reinforced Plastic Sandwiched Pipe

Scope

Scope: This standard specifies the classification and marking, raw materials, technical requirements, test methods, inspection rules, connection methods, marking, packaging, transportation, and storage of fiber-reinforced plastic sand-filled pipes (hereinafter referred to as FRPM pipes). This standard applies to FRPM pipes made by winding technology, with glass fiber and its products as the main reinforcing materials, unsaturated polyester resin, epoxy resin, phenolic resin, etc. as the matrix materials, and inorganic non-metallic particulate materials such as quartz sand, limestone sand, and granite sand as fillers. The nominal diameter ranges from 100 to 4000 mm, with a pressure rating of 0.1 MPa to 3.2 MPa and a ring stiffness rating of 1250 N/20000 N. These pipes are used for underground and aboveground water supply and drainage, water conservancy, municipal, mining, and irrigation projects, with a maximum operating temperature of 50°C for the medium. Non-sand-filled glass fiber reinforced plastic pipes and those with nominal diameters, pressure ratings, and ring stiffness ratings outside the scope of this standard may also be used for reference. Main technical contents: (1) Adoption of international standards. The basic standard GB/T 21238-2016 was drafted by referring to ISO 10639:2004 "Pressure and Non-Pressure Water Supply Plastic Pipe Systems - Glass Fiber Reinforced Thermosetting Plastic Pipes". The degree of conformity with ISO 10639:2004 is non-equivalent. (2) Reference to relevant national standards and original industry standards. a. Relevant national standards referenced by this standard. In addition to the documents listed in the normative references, the following requirements also apply: - The quality of winding yarns shall comply with GB/T 18369 "Glass Fiber Unidirectional Roving Yarns", with a linear density of 2400 Tex to 4800 Tex. - The quality of chopped fiber nonwovens and continuous fiber nonwovens shall comply with the curre

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