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Tidel Engineering, Inc. <br />EMS -3500 <br />with Liquid Discriminatory Probes Part 301-0635 <br />LIQUID -PHASE INTERSTITIAL DETECTOR <br />Detector: <br />Output type: qualitative <br />Sampling frequency: continuous <br />.,Operating principle: electrical conductivity/hydrocarbon sensitive polymer <br />Test Results: <br />unleaded ga§gling <br />water <br />Accuracy <br />100 <br />A 100 <br />Response. time (min) <br />3.59 <br />0.96 <br />Recovery time (min) <br />13.18 <br /><1 <br />Product activation -height (cm) <br />1.76 <br />0.49 <br />Lower detection limit (cm) <br />4.19 <br />1.52 <br />* At a flow rate of 0.04 gal/hr in a 2.54 cm diameter test chamber. <br />enia Edition: September 1991 <br />Specificity Results: <br />Activated: diesel fuel (at liquid height of 1.78 cm), synthetic fuel (at 2.30 cm), heating oil #2 (at 2.30 cm). <br />Comments: <br />Test procedures used were Carnegie Mellon Research Institute's "Test Procedures for Third Party <br />Evaluation of Leak Detection Methods: Point Sensor Liquid Contact Leak Detection Systems": <br />Final Report - November 11, 1991. <br />Detector is reusable. <br />Tidel Engineering, Inc. Evaluator. Camegie Mellon Research Institute <br />2615 E. Belt Line Rd. Tel: (412) 268-3495 <br />Carrollton, TX 75006 <br />Tel: (800) 678-7577 Date of Evaluation: 01/29/93 <br />238 <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 <br />the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations. <br />