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PRECISIOPT <br /> ENVIRO-Tr,-H <br /> Analytical Laboratory CERTIFICATE OF ANALYSIS <br /> Thursday,July 5,2007 <br /> Attention: Wayne Mannor <br /> Sumiden Wire Products Corp. Report Page 4of5 <br /> 1412 EI Pinal Drive <br /> Stockton, CA 95208-0719 <br /> Metals by EPA 6000/7000 Series Methods-Quality Control <br /> Precision Enviro-Tech <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch AF72213-General Prep <br /> Matrix Spike Dup(AF72213-MSDI) - Source:7061208-01 Prepared&Analyzed:22-Jun-07 <br /> Beryllium 29.7 0.500 mg/kg 40.0 ND 74 70-125 1 20 <br /> Antimony 29.9 1.00 40.0 ND 75 70-125 1 20 <br /> Batch AF72603 -EPA 3020A <br /> Blank(AF72603-BLK1) - _ Prepared&Analyzed:26-Jun-07 <br /> Mercury ND 0.100 mg/kg <br /> Matrix Spike(AF72603-MSI) Source:7061208-01 Prepared&Analyzed:26-Jun-07 <br /> Mercury 0.00 0.100 mg/kg ND 75-125 <br /> Matrix Spike Dup(AF72603-MSDI) Source:7061208-01 Prepared&Analyzed:26-Jun-07 <br /> Mercury 0.00 0.100 mg/kg ND 75-125 20 <br /> mg/L=milligrams per Liter=ppm DLR=Detection Limit for Purpose of Reporting. <br /> ug/L=micrograms per Liter=ppb Exceptional sample matrices or interferences may <br /> result in higher detection limits. <br /> RESPECTFULLY SUBMITTED, <br /> �jlo,re� <br /> Jonathan Le,Laboratory Director <br /> 3935 N. Coronado Ave Stockton CA. 95204 phone: (209) 477-8105 Fax: (209) 477-8148 <br />