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FFS MI D Pipeline Leak Detector <br /> rr .. <br /> Introduction <br /> This report is to be used in conjunction with the July 1, 1992 evaluation of the FE Petro Pipeline Leak <br /> Detector for Hourly Monitoring. In 1991, the STP-MLD system was certified to meet the <br /> requirements of the U.S.Environmental Protection Agency for Pipeline Leak Detection Systems.The <br /> system was certified with a probability of detection(PD)of 100%and a probability of false alarm(PF,)of <br /> 0%for Hourly Monitoring.The evaluation applied to pipelines with a volume up to 129 gallons, <br /> which is equivalent to 350 ft. of 3-in diameter pipe. <br /> This report contains additional test data for the STP-MLD-D system that was conducted in April, <br /> 1994 on a 400 ft., 3-in diameter fiberglass pipeline. Testing was performed in accordance with the <br /> EPA Pipeline Leak Detection Test Protocol with the exception of the number of tests performed.The <br /> results of this abbreviated testing indicate that STP-MLD-D system will successfully perform on pipelines <br /> containing diesel fuel.The additional testing suggests that the system is acceptable for use on <br /> diesel pipelines up to 800 ft.,3-in diameter. <br /> Test Conditions <br /> The 400 ft. fiberglass pipeline is manufactured by Ameron and has a volume of 170.5 gal and a <br /> bulk modulus of 33,087 psi. <br /> Six additional tests were conducted on the FE Petro system. The test conditions and results for <br /> these 6 tests are in Table 1. Testing was conducted at rates equivalent to 3 gal/h at 10 psig for <br /> Hourly Monitoring.Testing was conducted at the temperature extremes of±25 deg F and at neutral.The <br /> ±25 deg F temperature differences are the extremes required for EPA certification. If a leak <br /> detector is successful at these temperature differences,it would also be expected to pass at less <br /> extreme temperature differences. <br /> Test Results and Discussion <br /> The performance parameters for the STP-MLD-D system with Diesel fuel have been summarized <br /> in Table 2. The STP-MLD-D was correct in its determination of a leak or a tight pipeline in all of the <br /> additional tests. Therefore,the Po was 100% and the PFA was 0%for the six additional tests. <br /> Six tests were conducted on the 400 ft.diesel pipeline.Official EPA certification requires that 25 tight <br /> tests and 25 leak tests be conducted at various temperatures for Pipeline Leak Detection Systems. <br /> Although the FE Petro system has not been re-tested the requisite number of times to receive official <br /> EPA certification for diesel containing pipelines,it is the opinion of Ken Wilcox that the STP NID- <br /> D leak detector will operate properly in pipelines containing Ultrazol 9888. <br /> 1 <br />