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<br />7,7.4.2 For vutaa eontainint >S percent solids (see Step <br />7.3.6), deus~lae r!u anoune o! rases eo chaste into the Z1iE u lollova: <br />Voilht o! veto co ~harte 2HE ~ 2~ x 100 <br />t aollda (Sup 7.3.6) <br />Weith out a representative subaaspl• o! the rases o! eha appropriate size <br />and record the reitht. <br />7.7.5 It particle•aize reduction o! the solid postien o! the <br />rota ru required in Stap 7.5, proceed to Seep 7.7.6. I! particle-size <br />reduction ran roe required in Seep 7.5, proceed to Seap 7.7.7. <br />7.7.6 Prepare the vaat• for extracelon as described in Stap <br />7.5. Vaataa and appropriat• reduction equipeenc should be relritesatad, !! <br />poealble, to 4•C prior co particle-size reduction. ?he scans wed u <br />aliett particle-size reduction suac not tenerate heat in and o! itaalt. I! <br />reduction o! the solid phase o! the raate in necessary, ezponure o! the <br />rote to the atsoephere should be avoided to the extent poeaible. <br />~95l: Sierint o! eha vaara is not reeowendad dw to the <br />poaaibiliry that volaeilea•say be lost. r6e use o! an <br />appropriately traduaeed rules is recommended ea an <br />aeeepeable altenutiw. Surface area raquiraatenu are <br />saaae !or lilearacow (e"a", paper, cloth) and alailar <br />vaate saceriala. Actual seasureeienc o! aurtaw area la <br />not recosaunded. <br />Tihen the surface area or particle-size has been appropriately <br />altezed, proceed to Step 7.7.7. <br />7.T.7 Vaate nlurriaa need not be allowd to stand co persit the <br />solid phut to nettle. Do not eeoerilute voter prior to lileraelon. <br />7.7.8 Quantitatively transfer the asoune o! the na~ple <br />detareiinad !n Stops 7.7.4.1 or 7.7.4.2 to the 211E. Secure the ulcer and <br />support screens into the top llante o! the device and secure the top Plante <br />to the 2315 body in aeeesdanee with the oanulusurar'n instructions. <br />Sitheen all 2~ littinta and place the device in the vertical posielon (gas <br />inlet/outlet die on the boeto~). Do not attach the extraction <br />collection den-!ae to the top place. Attach a tea line co the tae <br />inlet/outlet ralw (bettor llante) and, with the liquid inlet/onclec valve <br />(top llante) open, betin applyint tenth pressure o! 1-10 pn1 ee a aaxiaus <br />o! SO psi to ioree coat o! the headspaee out o! the device. <br />7.7.9 Attach eha evsewted pre•v~ithed lileraee eolleeelan <br />container to the liquid inlet/outlet valve and open the valve. betin <br />applyint tangle prenaure o! 1-10 psi to force the liquid phu• s! eha <br />sasiple inta the filtrate collection container. I! no additional liquid has <br />passed ehrouth the filter in any 2-sinuce interval, slowly increase the <br />12 <br />