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40 PRECISION <br /> ENVIRO-TECH <br /> Analytical Laboratory CERTIFICATE OF ANALYSIS <br /> Monday, June 2, 2008 <br /> Attention: Ryan Matthews <br /> Diamond Pet Foods Report Page 12 of 13 <br /> 250 East Roth Road <br /> Lathrop, CA 95330 <br /> Volatile Organic Compounds by EPA Method 8260B- 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 AE80705-Volatiles <br /> Reference(AE80705-SRM 1) Prepared&Analyzed:07-May-08 <br /> trans-1,3-Dichloropropene 21.0 0.500 ug/I 20.0 105 75-120 <br /> Ethylbenzene 22.0 0.500 20.0 110 75-120 <br /> Hexachlorobutadiene 21.0 0.500 20.0 105 75-120 <br /> lsopropylbenzene 20.8 0.500 20.0 104 75-120 <br /> p-Isopropyltoluene 18.0 0.500 20.0 90 75-120 <br /> Methylene chloride 19.0 0.500 20.0 95 75-120 <br /> Naphthalene 18.0 0.500 20.0 90 75-120 <br /> Styrene 22.0 0.500 20.0 110 75.120 <br /> 1,1,2,2-Tetrachloroethane 21.0 0.500 20.0 105 75-200 <br /> 1,1,1,2-Tetrachloroethane 19.0 0.500 " - 20.0 95 75-200 <br /> Tetrachloroelhene 19.6 0.500 20.0 98 75-120 <br /> Toluene 23.0 0.500 20.0 115 75-120 <br /> 1,2,3-Trichlorobenzene 34.6 0.500 20.0 173 75-200 <br /> 1,2,4-Trichlorobenzene 33.2 0.500 20.0 166 75-200 <br /> 1,1,2-Trichloroethane 27.9 0.500 20.0 - 140 75-200 <br /> 1,1,1-Trichloroethane 15.9 0.500 20.0 79 75-200 <br /> Trichloroethene 23.4 0.500 20.0 117 75-120 <br /> Trichlorofluoromethane 22.0 0.500 20.0 110 75-120 <br /> 1,2,3-Trichloropropane 33.8 0.500 20.0 169 75-200 <br /> 1,3,5-Trimethylbenzene 21.5 0.500 20.0 - 107 75-120 <br /> 1,2,4-Trimethylbenzene 18.0 0.500 20.0 90 75-200 <br /> Vinyl chloride 19.0 0.500 20.0 95 75-120 <br /> Methyl ten-butyl Ether(MTBE) 21.0 0.500 20.0 105 75-120 <br /> Ethyl cert-Butyl Ether(ETBE) 22.1 0.500 20.0 110 75-120 <br /> m,p-Xylene 42.0 0.500 40.0 105 75-120 <br /> o-Xylene 22.9 0.500 20.0 114 75-120 <br /> tert-Amyl Methyl Ether(TAME) 19.1 0.500 20.0 95 75-120 <br /> tert-Butyl Acohol(TBA) 22.1 50.0 20.0 110 75-120 <br /> Diisopropyl Ether(DIPE) 23.0 0.500 20.0 115 75-120 <br /> mg'L=milligroms 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 /> Jonathan Le, Laboratory Director <br /> 3935 N. Coronado Ave Stockton CA. 95204 phone: (209) 477-8105 Fax: (209) 546-7497 <br />