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California Edition: September 1997 Veeder-Root TLS -250, TLS 250i Plus, ILS 250, TLS -300C / 300i / 30OPC , ILS 350, TLS -350 / 350 PC / 350R / 35ORPC Interstitial Liquid Sensor for Steel Tanks (0794390-420) LIQUID -PHASE INTERSTITIAL DETECTOR Detector: Output type: qualitative Sampling frequency: continuous Operating principle: float switch Test Results: TLS -250, TLS 250i Plus, ILS 250, at a flow rate of 0.13 gal/hr in 4.8 cm diameter test chamber ** ILS 350, TLS -350, at a flow rate of 0.12 gal/hr in 4.8 cm diameter test chamber. Specificity Results: Activated: diesel fuel, synthetic fuel, heating oil #2, water. Comments: EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring. Test procedures used were Carnegie Mellon Research Institute's "Test Procedures for Third Party Evaluation of Leak Detection Methods: Point Sensor Liquid Contact Leak Detection Systems": Final Report - November 11, 1991. Detector is reusable. Veeder-Root Evaluator: Carnegie Mellon Research Institute 125 Powder Forest Dr. Tel: (412) 268-3495 Simsbury, CT 06070-2003 Tel: (203) 651-2700 Date of Evaluation: 07/17/92 291 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 method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations. unleaded synthetic ag_soline clasoline Accuracy (%) 100 100 Response time (min) 6.00 6.51 Recovery time (min) <1 <1 Product activation height (cm) 3.67 3.62 Lower detection limit (cm) 4.05 4.17 TLS -250, TLS 250i Plus, ILS 250, at a flow rate of 0.13 gal/hr in 4.8 cm diameter test chamber ** ILS 350, TLS -350, at a flow rate of 0.12 gal/hr in 4.8 cm diameter test chamber. Specificity Results: Activated: diesel fuel, synthetic fuel, heating oil #2, water. Comments: EPA and many states require detection of 1/8 inch (0.32 cm) of product for groundwater monitoring. Test procedures used were Carnegie Mellon Research Institute's "Test Procedures for Third Party Evaluation of Leak Detection Methods: Point Sensor Liquid Contact Leak Detection Systems": Final Report - November 11, 1991. Detector is reusable. Veeder-Root Evaluator: Carnegie Mellon Research Institute 125 Powder Forest Dr. Tel: (412) 268-3495 Simsbury, CT 06070-2003 Tel: (203) 651-2700 Date of Evaluation: 07/17/92 291 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 method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.