10mm abrasion HDPE board for water tank-HDPE board 4×8 MEETS AWWA C901, ASTM D2239, ASTM D2737, ASTM D3035, CELL CLASS PER ASTM D3350, PPI LISTED MATERIAL (TR-4) PE 4710, AND ANSI/NSF-14. JM Eagle’s high-density polyethylene water pressure pipes are suitable for irrigation, water service and geothermal applications.