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r <br />Results <br />of <br />i Response <br />ii Testing i <br />Liquid -Phase Detector Model FD221G/TRAJ <br />i Test. <br />r rd.. <br />Test ' r duct-. <br />'hicknes"i".­ <br />r i <br />r r'I ■,�■■ <br />i <br />Commercial <br />Gasoline <br />■ r <br />r <br />ri r! ■ <br />r r r ®� <br />r <br />rr <br />of rSynthetic <br />rr r I <br />Gasoline <br />r <br />of <br />W,r r <br />oll <br />NA = Not applicable because detector did not respond. <br />During specificity testing, the FD221G activated in response to all <br />eight test products. The results of these tests are summarized in Table 9. <br />The 2 1/2 -inch liquid probe was found to have a lower detection limit lying <br />between 0.08 cm and 0.32 cm for all test liquids. These results are summarized in Table <br />10. <br />Results of Evaluation of Interstitial Liguid Probe Model MD210RA <br />The Interstitial Probe was tested as described in the Pollulert manual, <br />"Installation and Operation Instructions for Leak and Vapor Detection Probes." It was <br />held in air to simulate a "dry" condition, immersed in clean tap water to simulate a "wet" <br />7 <br />