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FicuRE a. <br />PROCEDURE FOR PREPARATIO;I <br />• ~ OF COAL BED liITERBURDEN <br />FOR AQUEOUS EXTRAC'fIOiJ <br />Seler_t Rocic Core (2" diameter.) <br />Describe hfatri;: ~ Color <br />Record Core ldeia?~:t <br />Crush Core - Ham^ermiill (~-',," Top Size) <br />y <br />Screen Crushed Rock <br />+4 mesh (oversize roc'.:) <br />• Crush (-u mesh v 0) <br />Combine & Blend (15 min <br />-4 mesh :c 0 <br />Record Samule ldei~ht <br />Crush to Pass 100'/, thru 8 i`fesh Screen <br />Split by Riffling 1:1 Fractions) <br />l-D <br />Pulveri:-:c (60 mesh s 0) Reserve Sample <br />Record ldei~,ht Record lJei~ht & Label <br />Air Dry Sample Overni.~ht at <br />Rouen 'Temperature S Record <br />• Final. ;Jci<,ht <br />Prepared by: <br />DeCerminc Residual Ptoistw•e Date; <br />Content <br />J. luaus <br />11/30/76 <br />