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IXO HOPE Product Cnt slog <br />Specifications for HOPE Pipe <br />Tke properties of 110 deasity polyetkylene ldpe are described using ASTM D 3350-02. <br />"Standard Specification for Polyethylene Plastic Pipe and hlttingsMaterials". ThisAS7M <br />Standard protides cell classilicatlons that define the physical properties of the resin used to <br />mate the HDPE papa <br />Most RDFH pipe is madewith a cell classification of PE345461C. The meaning of this cell <br />classification is provided in the table below. <br />ISCO Standard HDPE Resin Specificatio s <br />PROPFRTYWAI.UB SPC]CIFICATION UNIT NOMINAL <br />Material Designation PPI t ASTM PE3108 <br />Material Classification ASTM D 1248 RIC 5 P34 <br />Celi Classification ASTM D 336042 345464C <br />Darsfty (3) ASTM D 15D5 g/cm' 955 to 957 <br />Malt Index (4) ASTM D 1238 gm/ 10 anon .10 to .15 <br />Rental bisdulas (5) ASTM D 790 psi. 110 to 140,000 <br />Tensle Strength (4) ASTM D 636 psi 3200 min. <br />Slow Crack Growth <br />ESCR ASTM D 1603 hours In 100%igepal >SJM <br />PENT (6) ASTM F 1473 hours >100. <br />BOB @ 73 deg F (4) ASTM D 2167 psi 1,600 <br />W Stabilizer C ASTM D 1603 %C 2 to2s% <br />Types of Polyethylene Pipe <br />AHpolyethylenepipe hrotthe . The Plastic Pipaltsttitute's'Eng)reeringPmperfdes <br />ofPalyethylond- skews tkat poothylosewith adeasity ofgmater than 0.041(with no addf- <br />Adlik ) is hfgh-densityt Mate with a density of 0.026 to .94 are r dlum desslty and Utme <br />with a density of between .90 and .025 are low density. <br />Detsty hnfluerm keyproperties to polyethylene materials. As the density Increases. the <br />tensile stre►Sh Increases. Also the chemical resistance increases. <br />Tradkbonally. medium density polyethylene resin has been used tomakepipe far gas distri- <br />bution. When atediumdensitycsassetectedlorgaspipe, lthad hetterstresscrackrem- <br />ance than other resins. <br />As new resins and manufacturing processes have been developed. high aadmedhnm deasily <br />palyethylene resins kwe improved in their ability to handle stress and stress cracking <br />agents. <br />The ctnnat test to determine stress crack resistance is the PENT test. The PENT Teat is run <br />In accordance with ASTMF 1473-07,' Standard Test Method for Notch Tensile Test to <br />Measure the Resistance to Sim Crack Growth ofPolyethylene Pipes and Resins'. Thistest <br />requias that slow crackgrowth test be ran on sales ofextruded pipe. <br />l <br />Q� Copa UM 20041SC0 Industnras. ll.C. AD Rlaiasa Rmned. <br />