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~~~ ~~~ <br />1 ! <br />t r <br />800.527.9848 www.cetco.cem <br />Scan Date: 09/20/2007 <br />Order Number: 000231620 <br />Prepared For: Energy Fuels Resources <br />The GCL raw materials and GCL fmished product manufactured for the above-referenced <br />order number(s) are hereby certified to achieve the properties listed in the tables below. <br />~~L rx~rr:x1 Y Jr1SC:1r1C;A'1'1u1V5 NOR CLA YMAX 200R <br />est~M '._-. <br />_~_. _ 6od,~ Test Method Property - -- <br />v ,;Test Frequency ~- <br />Ce"~hfied Value <br />~4STM D 5891 'Bentomte Flmd_Loss_ _ _~l per 50 To <br />ns 18 ml <br />M <br />ax <br /> <br />ASTM D 5993 <br />~ _ <br />___ _ <br />;Bentomte Mass/Area p0,000 sq ft (4000 sq m) _ <br />_ <br />___ <br />0.75 lb /sq ft (3.6 kg/sq m) Min <br />4STM <br />D 5890 !Bentomte Swell Index (l per 50 Tons 4 mU2g Min <br />;ASTM_ D _4632 _ _;GCL Grab Strength IZ00,000 sq ft (20,000 sq m), 100 lbs (445 N) M <br />AR <br />V <br /> <br />ASTM D 6768 _ - _ <br />;GCL Grab Strength <br />200,000 sq ft (20,000 sq m) __ <br />_ <br />_ _ <br />40 Ibs/in MARV <br />:ASTM D 5321 ;GCL Hydrated Internal Shear Strength; eriodic 0 psf (2.4 kPa) typ tr 200 psf <br />gSTM D 5887 ;GCL Hydraulic_Conductivity_ _ jW_eekly x 10^-9 em/ sec Max <br />ASTM D 5887 'GCL Index Flux _ __ <br />jWeekly i t x 10^-8 m^3/m^2/sec Max <br />----•--••••- r•~r~•v •~~•~ ~•~ r .............. a. a ~~•~~~«~~= pwc~~~wg iacuuy oerore smpmenr ro et iev's productron tacttity. <br />All tensile testing is in the machine direction. <br />FF_ ABRIC SUPPLIER REQUIREMENTS FOR CLAYMAX 200R <br />I RawMa4Prial' ~ fog*.,,0+6,,:1 -~,...,~....,:_ ~.~'ea <br />Claymax 200R Base Nonwoven FabricASTM D 5261; 2.7 d/yoz: 2~ <br />Fabric certificatrons from our raw matenal suppliers are on file at our production facility. <br />CETCO's MQA laboratory is GAI-accredited (www.geosynthetic-institute.org/gai/lab.html). <br />d ~~, <br />--_~ '` rx <br />L <br />Roger B. Wilkerson <br />Quality Assurance Coordinator <br />CETCO Lovell Plant <br />