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R` <br />TECHNOLOGY FOR YANKS <br />Qualification <br />4 <br />AND THEIR ENVIRONMENT <br />Procedure <br />ISM.# anL—, CUST. Facift A%�_O <br />1. If the tank product level Is less than 60% or more than •0 <br />capacity,. Do not test without specific , <br />Xuallty Control. <br />check11. Safety bottom premra diferential. <br />EnterI Enter tank diameter (A) In. <br />2. •= <br />r <br />3. Calculate bottom to <br />y Enter water table <br />5. Subtract water table (D) from tank bottom (C) <br />to obtain <br />6. Calculate water head pressure at tank bottom . <br />1 1''. • •ti <br />Total7. To obtain tank bottom pressure differential (G), ADD water head <br />.6'ressure (F) and the probe set point (1.2 for steel or 0.5 lbr berglass, tanksy. <br />diferential : • • <br />totalIf diferential (G) <br />exceeds psi DO NOT TEST <br />without! -instructions! Houston <br />Control. <br />qlf 11 lql( <br />Ela <br />'•�V 1'JRMkI M�' <br />TAK-24 <br />TANKNOLOGY CORPORATION INTERNATIONAL <br />Y } 5225 Hollister St. • Houston, Texas 77040-6294 • (713) 690-8265 s 1 (800) 888-8563 + Fax: (713) 690-2255 <br />