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7.6.9 Ce~psse the eontaainane eoneeneraeioeu in the 1312 excrete <br />rit6 the approprlsG resulstory ehreeholda. Reler eo Seeeion 0.0 !or <br />gwlity uausanee rsquirasents. <br />7.7 Procedure rhea volaeilea are involved: <br />7.7.1 The 71iE devlee la wad to obtain 1312 exesaets for <br />volatile analysis only. Extract rasuleins frog the w• of the 2HE shall <br />not be used to evalwea the nobility o! non-volaelle anslytee (e.e., <br />secals, pesticides, etc.). The 21iE device hu approxlatately a 500 sl <br />internal capacity. Althoush a siniau~ sasple size o! 100 s vas required in <br />the Step 7.2 procedure, the 211E can only seeosawdaee a saxla~ae o! 25 s of <br />solid, dw to the need to add an aaaune of e:traetion !laid equal co 20 <br />cases the reliht o! the sasple. The ZHE Ls chas=ed rich suple only once <br />and the device La not opened until the line! extract hu been collected. <br />Althoush the lollorins procedure alloys for particle-size reduction durint <br />the conduct of the procedures, Chia could result 1n the loss of volatile <br />eospounds. I! possible, particle-size reduetioa (ass Sesp 7.5) should be <br />conducted on the aasple as Lt is beans talwn (e.e., partiela•sLze say be <br />reduced by csusblins). It necessary, pasticle•alze reduction say be <br />conducted dusint the procedure. Ia casryint out the tollorint steps, de <br />not allot the sasple to be exposed to the aewsphere for say sore else thaa <br />is absolutely necessary. Af-y sauipulatlon of chase auterials 4hould be <br />done then cold (4'C) to sinisize the loss o! volatiles. Fre-wlsh the <br />evseuated conuiner rhieh rill receive the filtrate (see Step b.6), and set <br />aide. I! usias a TEDIAA4 bas, all air swt be expressed Eros the <br />device. <br />7.7.2 Plate the 2116 piston rlthia the body o! the 2311 (it say be <br />helpful !arse to swiaten the piston 0-ring slithely rich estraeelon <br />fluid). Adjwt the piston rithin the 211E body to a heisht that rill <br />sinisize the distaste the piston rill haw to cove once it is ohartad with <br />sasple. Seeuss ehs W Salee/outlet flame (bottoms ilanse) onno the 211E <br />body in aecordaaee rith the sanutaceuser's Lnscruetions. Secant the slue <br />fiber filter beer~en the support screens and see aide. See liquid <br />!else/outlet !lease (top ilante) aide. <br />T.1.3 I! the cute is 100 percent solid, reish out a <br />repreaenueivs subsa~le (23 t saxiaus) o! the taste, record veithe, and <br />proceed eo Strp 7.7.5. <br />7.7.1 It the cute contains <0.5 percent dry solids (Seep <br />7.4.3), the liquid portion of waste, after fllcration, is defined as the <br />1312 extract. Filter mouth of the aasple so chat the asoune of [altered <br />liquid rill support all of the volaelle analyses required. For tastes <br />coneainins >O.S percent dry solids (Seeps 7.4.3), we the percent solids <br />Lnforsselon obtained in Seep 7.4.3 co deeersine the opeisus sasple size to <br />chaste into the ZHE. ?he reeomended aasple size is as follora: <br />7.7.4.1 For tastes concainint <S percent solids (see Step <br />7.3.6), reach out a representative 500 t aaspla of ru ce and record the <br />veLShe. Proceed co Step 7.7.5. <br />11 <br />