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J <br />HNOLOGY FOR TANKSD THEIR ENVIRONMENT <br />0 Pre -Test <br />Qual if ication <br />Procedure <br />S.O.# LrS.Se.( ®� CVS 1 . SITE E 7T <br />1. If the tank product or 90% of <br />r • nottest withoutspecific•,fromyour <br />• Region <br />* Control. <br />M <br />0 <br />2. Enter Tank . • to Surface Distance (B) _-7 C in. <br />3. Calculate a bottomtosurface <br />is i, '. <br />M <br />table5. Subtract water r from bottom <br />. obtain0 <br />*6. Calculate water head pressure at tank bottom <br />•• • <br />7. To obtain i. bottom • • differential A r .water .:.d. <br />pressure (F) and the probe set point (2.0 for steel or 1.0 for fiberglass tanks <br />1 <br />Total differential equals •....... <br />a • - .' - -• A fi • !• <br />Ila; 4P I <br />• • • • '• is5 ! - <br />TAK-24 (10/93) <br />Top of grater table <br />Pre-test form 9/22/93 <br />