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y <br /> Results of Third Party Standard Evaluation <br /> Point Sensor Liquid Contact Product Detectors <br /> This form documents the performance of the cable sensor liquid contact leak detection system described below. <br /> The evaluation was conducted by the equipment manufacturer or a consultant to the manufacturer according to the <br /> Third Party Procedures developed according to the U.S. EPA's 'Standard Test Procedure for Evaluating Leak <br /> Detection Methods: Liquid-Phase Out-of-Tank Product Detectors"1 <br /> Tank owners using this leak detection system should keep this form on file to prove compliance with the federal <br /> regulations. Tank owners should check with state and local agencies to verify that this form satisfies their <br /> requirements. <br /> Method Description <br /> Name 350 Series UST Monitorino Svstems7 Models ILS 350 (=serial #E3pjg 013) & TLS 950 <br /> Version with Interstitial Liouid Sensor for Steel Tanks (0794390-420) <br /> Vendor Veeder-Root Envimnmental Products <br /> 125 Powder Forest Drive <br /> (street address) <br /> Simsbury. ,T 06070-2003 (800) 873-3313 <br /> (city) (state) (zip) (phone) <br /> Detector output type: X_Qualitative <br /> Detector operating principle: _Electrical Conductivity _Capacitance Change <br /> i <br /> _Interface Probe _Product Permeable _Product Soluble _Thermal Conductivity <br /> _Pressure Switch _Magnetic Switch Other (Float Switch) <br /> Detector sampling frequency: _Intermittent Continuous <br /> Evaluation Results <br /> The detector described above was tested for its ability to detect test liquids in contact with the <br /> point sensor. The following parameters were determined: <br /> • Detection Accuracy - The measure of sensor response to the presence of liquids. <br /> • Response Time - Amount of time the detector must be exposed to liquid before it responds. <br /> • Recovery Time - Amount of time that passes before the detector returns to its baseline reading <br /> after the test liquid is removed. <br /> • Lower Detection Limit - The smallest liquid concentration that the detector can reliably detect. <br /> • Product Activation Height - The height of liquid to cause sensor activation. <br /> • Specificity - Indicates the level of response, of the detector, to several different liquids. <br /> 1 Carnegie Mellon Research Institute. Test Procedures for Third Party Evaluation of Leak Detection M thods, Point <br /> Sensor Lieuid Comact Leak Detection Systema: Final Report - November 11, 1991. <br /> Liquid Contact Product Detector- Results Form Page 1 of 2 <br />