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Independent Test Results <br /> Product tested: <br /> Insituform°Cured-In-Place Pipe(CIPP) <br /> Test; <br /> . <br /> An hsit4 omr cured-in-,�kwe Properties <br /> Ce Flexural ural PrPrd by: <br /> pipe (CPP) continues to Bodycote Materials Testing Ltd. <br /> exceed industryerfon ance Report Date. <br /> C' November 2001 <br /> standards glkr 30 years <br /> in service. <br /> SUMMARY OF RESULTS Supervising removal of the samples were <br /> • After 30 years of service in a London sewer representatives from both Bodycote and the sewer <br /> carrying both domestic and industrial effluent, Owner,Thames Water Utilities Limited. <br /> an Insituform"CIPP was found to have a flexural PROCEDURE <br /> modulus exceeding the nearest contemporary Two panels,approximately 300 mm(12 in.) <br /> UK Water Industry Specification by 50%,and square,were taken from a side wall of the sewer, <br /> the current US standard by more than 90%. approximately four meters downstream from a <br /> • The 30-year-old pipe's flexural modulus was an manhole.Three test pieces were cut from each <br /> Improvement over test data obtained after 20 panel as shown in the diagram below. <br /> years In service. The flexural properties of each test piece were <br /> • There was no apparent deterioration In the determined by the method of BS EN ISO 178, in <br /> overall performance of the Insituform"CIPP accordance with current UK Water Industry <br /> between its 20th and 30th year in service. Specification (WIS)4-34-04. <br /> INTRODUCTION <br /> In October 2001,tests were conducted by <br /> Bodycote Materials Testing Ltd.to determine <br /> the flexural properties of the samples taken from Panel A <br /> an lnsi#uform©CIPP that had been in service for (test plows 1.3) <br /> 30 years. <br /> The pipe samples were taken from a 1,170 mm X <br /> 600 mm (46 in.X 24 In.)egg-shaped sewer at <br /> Riverside Close in Hackney, London.This is the <br /> same Insituform°CIPP that was sampled and tested <br /> In 1991,after 20 years in service, by Bodycote's Penel B <br /> (test pieces 4-0) <br /> predecessor MTS Pendar Ltd. <br />