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Document Designation and Title Year Select Item(s) D2774 Standard Practice for Underground Installation of Thermoplastic Pressure Piping 08 D2774 Standard Practice for Underground Installation of Thermoplastic Pressure Piping 04e1 D2774 Standard Practice for Underground Installation of Thermoplastic Pressure Piping 04 D2774 Standard Practice for Underground Installation of Thermoplastic Pressure Piping 01 D2774 Standard Practice for Underground Installation of Thermoplastic Pressure Piping 94