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0 E2242-07 <br />mm Now <br />he <br />b cap <br />vow <br />(a W <br />bow <br />bd *A* OW <br />dw C wr <br />V pw <br />rltlsr <br />dINW4 <br />N" 1) Odmdb a Ndu ad on oppeopU s Odkm <br />Am rltrwt err is it "dam <br />AM 40 01110sed*dL <br />2) Cembai sdlrrrl Wiled w mb elwwMr6d <br />M *aloft PrM • ersd&* Mw1 t RW*Aa <br />FUG. 1 Column Percolation Extraction Device (blatecrlc Water NIobWty 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 weightcontaining 5 kg dry weight, <br />based on the feed moisture content from 10.3, as follows: <br />1000 <br />R _ (C + D) (2) <br />where: <br />_ 5x10' <br />S. (100-1117 <br />• <br />• <br />(3) 0 <br />l .. <br />Copyright by ASTM Intl (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.