T/GDPIA 30-2021 Continuous glass fiber reinforced polyethylene composite tube
T/GDPIA 30-2021 Continuous glass fiber reinforced polyethylene composite tube
Basic Information
Scope
Scope: This document specifies the terms and definitions, classification, materials, general provisions, requirements, test methods, inspection rules, marking, packaging, transportation, and storage of continuous fiberglass-reinforced polyethylene composite pipes (hereinafter referred to as composite pipes). This document applies to continuous fiberglass-reinforced polyethylene composite pipes used for pressurized water supply and drinking water transportation with a working temperature not exceeding 40℃ and a nominal pressure not exceeding 3.5MPa. Main technical contents: 1. Scope: This document specifies the terms and definitions, classification, materials, general provisions, requirements, test methods, inspection rules, marking, packaging, transportation, and storage of continuous fiberglass-reinforced polyethylene composite pipes (hereinafter referred to as composite pipes). This document applies to continuous fiberglass-reinforced polyethylene composite pipes used for pressurized water supply and drinking water transportation with a working temperature not exceeding 40℃ and a nominal pressure not exceeding 3.5MPa. 2. Normative references 3. Terms and definitions 4. Materials 4.1 Raw materials for the inner pipe of composite pipes 4.2 Raw materials for the reinforcing layer of composite pipes 4.3 Raw materials for the outer protective layer of composite pipes 5. General provisions 5.1 Pressure correction 6. Requirements 6.1 Appearance 6.2 Color 6.3 Specifications and dimensions 6.4 Physical and mechanical properties of composite pipes 6.5 Hydrostatic strength and bursting pressure 6.6 Hygienic performance 7. Test methods 7.1 Sample conditioning and standard environment for testing 7.2 Appearance and color 7.3 Specifications and dimensions 7.4 Melt flow rate 7.5 Oxidation induction time 7.6 Longitudinal shrinkage rate 7.7 Stability against pressure cracking 7.8 Hydrostatic strength 7.9 Bursting pressure 7.10 Hygienic performance 8. Inspection rules 8.1 Inspect