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California Edition:August,19% <br /> Tide[ Engineering <br /> Tide[ Environmental Monitoring System, EMS 2000, 3000, & 3500 Series <br /> Probes #401-0021 & #401-0022 <br /> AUTOMATIC TANK GAUGING SYSTEM <br /> Certification: Leak rate of 0.2 gph with Pc= 99.91% and PFoA= 0.09%. <br /> Leak Threshold: 0.1 gph (a teak is declared if the output of the measurement system <br /> exceeds this threshold). <br /> Applicability: Gasoline, diesel, aviation fuel, fuel oil, and solvents. <br /> Capacity: The maximum tank capacity is 15,000 gallons. <br /> The tank must be between 50 and 95% full. <br /> Waiting Time: Minimum waiting time between product delivery to the tank and test data collection <br /> must be 2 hours. <br /> There must be no dispensing or product delivery during the test waiting time. <br /> Test Period: The minimum data collection time must be 6 hours. <br /> Test data is acquired and recorded by the microprocessor contained within the EMS <br /> console. <br /> Leak rate is calculated from data determined to be valid by statistical analysis. <br /> There must be no dispensing or product delivery during the test. <br /> Temperature: A minimum of 5 temperature sensors must be used to determine the average <br /> temperature of the stored substance. <br /> Water Sensor: A water sensor is used to detect water incursion. <br /> Minimum water level detectable in the tank is 1.48 inches. <br /> Minimum detectable water level chanye is 0.035 inches. <br /> Calibration: Temperature sensors and ultrasonic probe must be checked and calibrated in <br /> accordance with manufacturers instructions. <br /> Comments: This equipment was not evaluated using manifolded tanks. <br /> .This equipment only tests that portion of the tank that contains product. <br /> As the product level is lowered, the leak rate in a leaking tank decreases (due to lower <br /> head pressure). <br /> EMS 2000 and 3000 Series are no longer manufactured by Tidel. <br /> Tidel Engineering, Inc. Evaluator: Ken Wilcox Associates <br /> 2615 East Beltline Road <br /> Carrollton, TX 75006 <br /> Tel: (800) 678-7577 Date of Evaluation: 06/07/93 <br /> 170 <br /> Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of the <br /> method or equipment. <br /> 4 `? i' . ol <br />