T/CIDA 0022-2023 Irrigation double-shaft oriented hard polyvinyl chloride (PVC-O) pipe

Scope

Scope: This standard specifies the materials, requirements, test methods, inspection rules, marking, transportation, and storage of double-axially oriented hard polyvinyl chloride (PVC-O) pipes for irrigation purposes. This standard applies to double-axially oriented hard polyvinyl chloride pipes for irrigation purposes (hereinafter referred to as "pipes") where the water temperature delivered does not exceed 45 degrees Celsius and the nominal pressure does not exceed 2.0 MPa; Main technical contents: Preface 1 ; Scope 2; Normative references 3; Terms and definitions 4; Materials 4.1 ; Green material 4.2; PVC-O pipe materials 5; Product classification 6; Requirements 6.1 ; Appearance 6.2; Color 6.3; Dimensions 6.4; Hydrostatic strength 6.5; Physical and mechanical properties 6.6; Frost resistance 6.7; System suitability 7; Test methods 7.1; State adjustment 7.2; Appearance and color 7.3; Dimensions 7.4; Hydrostatic strength 7.5; Density 7.6; Axial tensile yield stress 7.7; Burst pressure 7.8; Drop hammer impact 7.9; Ring stiffness 7.10; Flatness test 7.11; Frost resistance 7.12; System suitability 8; Inspection rules 8.1; Grouping 9; Marking, transportation, and storage 9.1; Transportation 9.3; Storage Appendix A (Normative) Determination of MRS value Appendix B (Normative) Temperature reduction coefficient for pressure Appendix C (Normative) Pipe freeze-thaw test

Development Information

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