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California Edition: September 1997 <br />Veeder-Root <br />TLS -350 / 350 PC / 350R / 350RPC <br />Dispenser Pan Sensor (794380-320) and Containment Sump Sensor (794380-350) <br />LIQUID -PHASE INTERSTITIAL DETECTOR <br />Detector: <br />Output type: qualitative <br />Sampling frequency: continuous <br />Operating principle: electrical conductivity/ultrasonic <br />Test Results: <br />unleaded <br />gasoline <br />water <br />low <br />high <br />Accuracy (%) <br />100 <br />100 <br />100 <br />Response time (min) <br />6.59 <br />4.60 <br />5.00 <br />Recovery time (min) <br />17.17 <br /><1 <br /><1 <br />Product activation height (cm) <br />3.40 <br />2.45 <br />20.3 <br />* At a flow rate of 0.17 gal/hr in a 6.0 cm diameter test chamber. <br />Specificity Results: <br />Activated: diesel fuel (at liquid height of 4.75 cm), synthetic fuel (at 2.58 cm), heating oil #2 <br />(at 4.67 cm). <br />Comments: <br />EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring. <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 />Veeder-Root Evaluator: Carnegie Mellon Research Institute <br />125 Powder Forest Dr. Tel: (412) 268-3495 <br />Simsbury, CT 06070-2003 <br />Tel: (203) 651-2700 Date of Evaluation: 05/26/93 <br />294 <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 />