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Reposition the 271E in the vertical position rich the liquid inlet/outlet <br />valor on top. Poe S-LO psi behind eha pia ton (i! necessary) and alorly <br />opts the liquid !Hite/cutlet valve to bland out any headapaee (into a hood) <br />that say haw been introduced dw to the addition of extraction fluid. <br />This bleediat shall be dons quickly and shall be stopped at the first <br />appearance o! liquid lso~ the valve. Re-preaaurize the ZNE rich 5-10 psi <br />and ehaek all 23IE !letints to ensure that chay era closed. <br />7.7.15 Plata eha 21iE in the rotary extractor apparatus (i! ie La <br />not already chars) and rotate the ?liE at 30 ± 2 rps for 18 t 2 hours. <br />Aabiene teeperature (l,,j., tasperature o! the roos in rhieh extraction is <br />to cake place) shall be saineained ae 22 * 3'C durint eha extraction <br />period. <br />7.7.16 Follorint the 18 ± 2 hour atieatlon period, ehaek the <br />pressure behind the 21{E piston by quickly openint and eloaint eha tas <br />inlet/outlet valve and noeint the •seape of tas. If the psesause hu not <br />bean saintained (i.e., no tea release observed), the ZHE is leakint, sad <br />the procedure awe be repeated rich a Her sample. I! cha pressure rithin <br />the devie• has been saintained, the saterial in eha extractor vessel is <br />separated into its eo~ponene liquid and solid phuea. If cha state <br />contained as initial liquid phase, the liquid say be filtarad diseetly into <br />eha saw filtrate collection container (S-e-, TEDWtR bat) holdint the <br />Saitial liquid phut o! eha vests. A separate lilesate collection <br />container soar be wed i! cosbinint mould create sultiple phuea, or chess <br />La sat mouth w1uM left rithia the lilezate eollaetion eoataiper. Filear <br />ehrouth the tlus Tiber lileer, want the ZIIE davits u discwaed ~n Step <br />7.7.9. ell extracts shall be filtarad sad collected i! the TEDU~R bat <br />is wed, if the excrete is suleiphuia, or i! the waste contained an <br />initial liquid phase. <br />Nets: An in.lina tlus Liber filter say be wad to filter the <br />saearial rithia eha ZHE if ie La awpeetad that the tlus <br />fiber lilter hu beta rupnued <br />7.7.17 I! the rota contained no initial liquid phut, the <br />filtered liquid siatarial obuined lso~ Step 1.7.16 is defined as the <br />•:crate. It the rote eenuined an initial liquid phut, cha filtered <br />liquid ssterial obtaiaad Eros Step 7.7.16 and cha initial liquid phase <br />(Step 7.7.11) era eolleatlwly defitud as cha excrete. <br />~: ?he initial liquid phase and the filtarad liquid sacerial <br />can be combined and analyzed i! chay era siseible. 'Ihe <br />phases ruse 6e analysed separately (sea Seap 7.6.8) S! <br />they era not siseibls. If eha filtarad liquid saeerial is <br />saA tiphaaie, do not eosibina eha phases for anal~yais, but <br />analyze ehes separately and saehesuteieally eosi6lne cha <br />results. <br />7.7.18 Follorint collection of the 1312 extract, larediately <br />prepare eha extract !or analysis and store rich sinimal headapaea at 4•C <br />until analyzed. Analyze eha 1312 excrete aecordlns to eha appropriate <br />analyeieal saehods. I! eha individwl phases are co be analysed separately <br />(1-a-, era not siacible), determine the volume of the individwl phases (to <br />O.S percent), conduce cha appropriate analyses, and combine the results <br />sathaaueieally by wint a simple volwa-reighced averate; <br />14 <br />