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TECHNOLOGY FOR TANKS <br />AND THEIR ENVIRONMENT <br />0 <br />Pre -Test <br />Qualification <br />Procedure <br />S.O.# C ST.®Facility # 2:Z4�r <br />1. If the tank product level Is less than 60% or _ than 90% of tank <br />capacity,. r. not test.: , <br />Quality <br />• r; ♦ • • • • <br />1 Enter tank diameter (A) gse in. <br />2. Enter -Tank .. to Surface Distance <br />Calculate3. bottom to <br />table41. Enter water distance from <br />5. Subtract water table (D) from tank bottom (C) <br />to • • <br />6. Calculate water • press re at tank •• • <br />1 • .• . <br />7. To obtain tank bottom pressure differential (G), ADD water head <br />!'ressure (F) and the probe set point (1.2 for steel or 0.5 for fiberglass tanks).-- <br />• <br />Totaldtferential equals•' <br />If total diferential (G) exceeds 4.00 psi DO NOT TEST <br />without specialfrom Houston <br />Control. <br />AI III U1l <br />iPE I [z= <br />TAK-24 <br />TANKNOLOGY CORPORATION INTERNATIONAL <br />5225 Hollister St. • Houston, Texas 77040-6294 • (713) 690-8265 • 1 (800) 888-8563 • Fax: (713) 690-2255 <br />