INFRASTRUCTURE - JM Eagle

FM Approvals will verify that all requirements ofthat standard are met.Requirements specifically measure: quick-burststrength, hydrostatic strength, stiffness, abuse,vacuum and one-hour pressure. A quick-burst testwill be conducted on all classes and sizes of pipesubmitted for approval. At least one sample ofeach class and size of pipe, including the integralbell, will be subjected to a 73-degree Fahrenheitquick-burst hydrostatic test. In this test, the internalpressure will be raised from zero to the minimumrequired pressure in not less than 60 and not morethan 70 seconds.FM Approvals’ requirement for stiffness is thatpipe must have sufficient stiffness to remain intactand not leak when exposed to external forces causedby earth and heavy vehicle loads.The abuse test requires that a 100 lb f -ft (135 N-m)impact will not impact the hydrostatic integrity of thepipe and fittings. The intent of this requirement is thatthe piping be resistant to minor impacts encounteredduring handling, installation and service.A vacuum test verifies the integrity of flexibleelastomeric seals—a component of the pipe joints--during a one-hour test. There should be no leakageas a result of this test. A test joint assembly shouldbe prepared using only the lubricant and procedurerecommended by the manufacturer.Additional tests may be required, dependingon the design features, results of tests or materialapplication, or to verify the integrity and reliabilityof the PVC pipe and fittings at FM Approvals’discretion. Unexplained failures will not bepermitted, and a re-test will be accepted only atthe discretion of FM Approvals and with adequatetechnical justification of the conditions and reasonsfor failure.ASTM InternationalWest Conshohocken, Penn.www.astm.orgASTM’s Proficiency Test Program sets standardsrequirements for both PVC and PE cellclassification. It provides participating laboratorieswith a statistical quality assurance tool, enablinglabs to compare, improve and maintain theirperformance in the use of ASTM methods againstother labs worldwide.Conducted biannually, this program provides(for each test cycle) four test samples, forms torecord test data, and instructions for conducting thetests. Laboratories are instructed to conduct the testsin their facilities using the ASTM methods cited inthe program and to record their test results on theelectronic data forms.Each laboratory submits completed test datato ASTM for use in generating statistical summaryreports. ASTM handles all data on a strictlyconfidential basis with no disclosure of lab identityexcept for one’s own laboratory. Final reportscontain all laboratory test data (coded), statisticalanalysis of test data, charts plotting test results vs.lab code and other information.The program includes lab participationworldwide, with more than 95 labs participating inthe 2009 program. Owww.jmeagle.com Summer 2010 • Water Infrastructure 9