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0 E 2242 - 07 <br />water <br />(6 liter <br />Notes: 1) Extraction device set on appropriate platform <br />above effluent container to allow gravity <br />flow of effluent and drain. <br />2) Constant influent application rate accomplished <br />by motoring pump or constant head apparatus. <br />D. <br />Column Height <br />fdlon <br />To <br />iple Charge <br />ate <br />ate Support <br />olumn Seal (Bubble Gap) <br />tubing <br />:ontainer Cover <br />)ver flow <br />Container) <br />:ontainer <br />Minimum) <br />FIG. 1 Column Percolation Extraction Device (Meteoric Water Mobility Procedure) <br />where: <br />A = mass of sample after drying, g, <br />B = wet mass of sample, g, and <br />M = moisture content, %. <br />10.4 Separate the remaining laboratory sample on a 5-cm <br />(2-in.) sieve. Save the minus 5-cm fraction for recombination <br />with the crushed plus 5-cm fraction. The screening time or end <br />point is when additional periods of shaking fail to change the <br />results by more than 0.3 % (Method E 389). For highly friable <br />material an acceptable end point shall be determined experi- <br />mentally. <br />10.5 Weigh the plus and minus 5-cm sieve fractions, calcu- <br />late and record the weight percent retained on the 5-cm sieve <br />as follows: <br />where: <br />R = weight retained on the 5-cm sieve, %, <br />C = mass retained on the 5-cm sieve, g, and <br />D = mass passing the 5-cm sieve, g. <br />10.6 Crush or hand break the materials retained on the 5-cm <br />sieve so that they just pass through the 5-cm (2-in.) sieve, <br />combine with the saved fraction passed through the 5-cm sieve <br />and mix the prepared sample. <br />10.7 Thoroughly blend the prepared sample and calculate <br />the minimum test sample weight containing 5 kg dry weight, <br />based on the feed moisture content from 10.3, as follows: <br />5X105 <br />S (100 - M) <br />1000 <br />R = (C + D) (2) <br />where: <br />(3) <br />Copyright by ASTM Int'l (all rights reserved); Thu Jun 26 15:52:01 EDT 2008 <br />Downloaded/printed by <br />Camp Dresser Mc Kee pursuant to License Agreement. No further reproductions authorized.