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J <br />n <br />Sensitivity to Trapped Vapor <br />14. (X) According to the vendor, this system can he used even if trapped vapor is present in the <br />pipeline during a test. (if not excessive.) <br />( ) According to the vendor, this system should not be used if trapped vapor is present in the <br />pipeline. <br />15. The sensitivity of this system to trapped vapor is indicated by the test results summarized in <br />.Table 2. These tests were conducted at 28 psi with 100 ml of vapor trapped in the <br />line at a pressure of 0 psi. The data and test conditions are repotted in Attachment 6. <br />Table 2. Summary of the Results of Trapped Vapor Tests <br />Test No. AT <br />(-F) <br />induced Leak Rate <br />lgal/hF <br />Measured Leak Rate <br />(galth) <br />1 +9,99 <br />2.94 al/hr @ 10 psi <br />Fail <br />2 +6.23 <br />1 2.91 al/hr @ 10 p i <br />Fail <br />3 1 -6.07 <br />1 2.8 al/hr @ 10 psi <br />Fail <br />17. This leak detection system is intended to test pipeline systems that are associated with <br />underground storage tank facilities, that contain petroleum or other chemical products, that <br />are typically constructed of fiberglass or steel, and that typically measure 2 in. in diameter <br />and 150 ft or less in length. The performance estimates are valid when: <br />- the system that was evaluated has not been substantially changed by subsequent <br />modifications <br />- the manufacturer's instructions for using the system are followed <br />• the mechanical line leak detector <br />( ) is present in <br />(X) has been removed from <br />the pipeline (check both if appropriate) <br />A mechanical line leak detector is no longer needed because the CEI system <br />performs a 3.0 gph test every time dispensing stops. <br />Pipeline Leak Detection System - Results Form Page 4 of 5 <br />Performance Characteristics of the Instrumentation <br />16. State below the performance characteristics of the primary measurement system used to <br />collect the data. (Please specify the units, for example, gallons, inches.) <br />Quantity Measured: Pressure (psi) Volume (ml) <br />Time (sec) <br />Resolution: 0.1 0.5 <br />0.01 <br />Precision: 0.1 0.5 <br />0.3 1.0 <br />0.05 <br />0.01 <br />Accuracy: <br />Minimum Detectable Quantity: 0.1 1.0 <br />0.01 <br />Response Time: --- --- <br />--- <br />Threshold is exceeded when the flow rate due to a leak exceeds 1.88 <br />gal/h, <br />Application of the System <br />17. This leak detection system is intended to test pipeline systems that are associated with <br />underground storage tank facilities, that contain petroleum or other chemical products, that <br />are typically constructed of fiberglass or steel, and that typically measure 2 in. in diameter <br />and 150 ft or less in length. The performance estimates are valid when: <br />- the system that was evaluated has not been substantially changed by subsequent <br />modifications <br />- the manufacturer's instructions for using the system are followed <br />• the mechanical line leak detector <br />( ) is present in <br />(X) has been removed from <br />the pipeline (check both if appropriate) <br />A mechanical line leak detector is no longer needed because the CEI system <br />performs a 3.0 gph test every time dispensing stops. <br />Pipeline Leak Detection System - Results Form Page 4 of 5 <br />