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(UL) (CL) + (V2) (C2) <br />final Analyta Coneencracion - <br />VL + V2 <br />nhara: <br />VL - The volusa of the first phas• (1) <br />CL - Tha eoneantration o! cha concaainanc of conearn in cha <br />first phas• (Bi/1) <br />V2 - The volusa of eha saeond phas• (1) <br />C2 - The eoneentsation of eha eoncasinane of eonearn in cha <br />saeond phaaa (B8/1) <br />7.7.19 Cosryasa the coneasiaane eoneaneracions Sn eha 1312 extract <br />with the appropriate ra~ulatory thresholds. Rafts to Saetion 8.0 !or <br />quality assusanca raquiresanes. <br />8.0 QVALZ'fY CONiROt <br />8.1 All data, Lneludin~ gwliry assurane• data, should be saintainad <br />and available !or ralasane• or inspaecion. <br />8.2 A BiniauB of one blank (extraction fluid el) !or awry 10 <br />azeractions that haw bean eonducead in an aztraeelon vassal shall ba <br />eBployad as a ehack eo dacasBit-a i! any msbry •Llaets frog the ezeracclon <br />aquipBant era occusrin~. <br />8.3 For aaeh analytical batch (up eo evanry saBples), it Ls <br />raeosB-andad that a Bacrix apika ba perloraed. Addition of Bacrix spilus <br />should occur once cha 1312 extract has baeo 8enasaced (~" should not <br />occur prios to pasfossanee of cha 1312 proeedusa). the purpose of the <br />Baeriz spib is to Bonitos eha adequacy o! the analytical sethods wad on <br />the 1312 aztrsct and for dacaaininp L! Baeriz incarferancas ezise in <br />analyte dateetian. <br />8.4 All quality control Beuuras described in the appropriate <br />analytical Bachoda shall be tollowd. <br />8.3 The Bsthod et standard addition shall ba esployad !or each <br />analyta it: 1) saeorys7r of eha eoBpound troll cha 1312 extract is not <br />batwan 80 smd 1201, o! 2) if cha eoneantration of the coeuticwnt Baasurad <br />is the aztlaat is within 20t of the appsopriata re8ulatory chra~hold. If <br />Bore than aoB axtraetion is bain~ run on sasples of eha sans vaata (up to <br />twenty saBP1eB), the Bethod o! standard addition nand be applied only once <br />and cha paresne racovarias appliad on eha resaindar of cha extractions. <br />8.6 SaBplas Bust undar6o 1312 extraction within cha lollo~in; ciao <br />period aftss saBpls raeeipt: Volatiles, 14 days; Safi-Volatilas, 40 days; <br />Karcury, 28 days; and oehar Metals, 180 days. 1312 azeracta shall ba <br />analyzed after aaneracion and praservacion within eha lollovin6 parioda: <br />Volatilas, 14 days; Sesti•VOlaciles, 40 days; Mercury, 28 days; and other <br />Metals, 180 days. <br />13 <br />