TUB121B is a black high density bimodal polyethylene copolymer designed for extrusion of potable water, natural gas, industrial, and mining pipe. It is listed by the Plastics Pipe Institute (PPI TR-4, as both PE 4710 and PE 100) and is certified to NSF/ANSI Standard 14, NSF/ANSI Standard 61, CSA B137.1 and CSA B137.4.Information provided by INEOS |