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NOW I THINK IN 3D. AND MY DESIGNS JUST KEEP GETTING BETTER.With our DimensionĀ® 3D Printer, I know my model will represent my idea exactly. And that makes it easier to improve my design with each iteration. Our Dimension is right here in the offi ce, and that helps us get our products to market faster. The Dimension models we create are made in ABS, so they're tough and durable. Leases start at only $275 a month, or you can buy a printer for under $15,000, so they're also really affordable. Overall, Dimension gives me an amazing sense of freedom-and creativity.Find out more at applicable in the United States. Additional options, shipping, applicable taxes and/or duties not included. Ā©2011 Stratasys, Inc.

PLASTICS ENGINEERING EDITORIAL STAFFManaging EditorDaniel J. DomoffContributing EditorsKen BraneyDr. Roger CorneliussenHope InmanPatrick ToensmeierMichael TolinskiArt DirectorGerry Mercieca2011-2012 EXECUTIVECOMMITTEEPresidentRussell C. BroomeExecutive Director & CEOSusan E. OderwaldPresident-electJames S. GriffingSenior Vice PresidentJon RatzlaffVice President/TreasurerVijay BoolaniVice President/SecretaryBrent F. StrongVice PresidentDr. Raed Al-zu'biVice PresidentWilliam D. ArendtVice PresidentOlivier CraveVice PresidentScott E. Owens2010-2011 PresidentKen J. BraneyAd Hoc MembersDr. Brian P. GradyLance M. NewardRobert B. Duncan, Jr.From SPE..................................................5Plastics Testing and Analysis..........10New analysis techniques are being developed to take a look at structure onthe nanoscale and to perform testing on new stronger materials. Also, analy-sis instruments once found only in the laboratory are moving to the manu-facturing plant. By Nancy LamontagneThe Effects of Chlorinated Water onPolyethylene Pipes..................................18By Jerry Eng, Thomas Sassi, Thomas Steele, and Giacomo VitarelliPlastics in Defense & Safety....................28Exploring some of the benefits plastics can provide in the areas of publicsafety and defense.By Geoff | OCTOBER 2011 | PLASTICS ENGINEERING | 1CONTENTSVOLUME 67 | NUMBER 9 | OCTOBER 201110