The end-product of most analytical laboratories is data. It is therefore imperative that the quality of the data produced meet or exceed performance criteria. The implementation of Quality Control (QC) processes helps control error and estimate uncertainty. QC can be a tool in method development, regulatory processes, laboratory training, and performance monitoring. QC samples can help an analytical laboratory determine its precision, accuracy, linear range, and method ruggedness. QC samples allow the laboratories to fulfill documentation requirements as well as correct errors in root case analysis of a possible failure. Finally, QC samples monitor the effectiveness of the laboratory analysts to produce accurate data.

A 1.5 mL concentrate in Methanol for use with Methods 601/602, 8010/8020, 624, 8240, and 8260. The sample design includes the following analytes:

• Benzene 10-120 ug/L


• 1,1-Dichloroethane 10-150 ug/L


• Bromodichloromethane 10-100 ug/L


• 1,2-Dichloroethane 15-150 ug/L


• Bromoform 10-100 ug/L


• 1,1-Dichloroethene 10-150 ug/L


• Bromomethane 20-120 ug/L


• cis-1,2-Dichloroethene 10-150 ug/L


• Carbon tetrachloride 15-150 ug/L


• trans-1,2-Dichloroethene 10-120 ug/L


• Chlorobenzene 10-120 ug/L


• 1,2-Dichloropropane 10-150 ug/L


• Dibromochloromethane 10-100 ug/L


• cis-1,3-Dichloropropene 10-120 ug/L


• Chloroethane 20-120 ug/L


• trans-1,3-Dichloropropene 10-120 ug/L


• 2-Chloroethyl vinyl ether 5-500 ug/L


• Ethylbenzene 10-120 ug/L


• Chloroform 10-100 ug/L


• 2-Hexanone 20-200 ug/L


• Chloromethane 20-120 ug/L


• Methylene chloride 10-120 ug/L


• Dibromomethane 10-120 ug/L


• 4-Methyl-2-pentanone 20-200 ug/L


• 1,2-Dichlorobenzene 10-120 ug/L


• Styrene 20-120 ug/L


• 1,3-Dichlorobenzene 10-120 ug/L


• 1,1,1,2-Tetrachloroethane 15-150 ug/L


• 1,4-Dichlorobenzene 10-120 ug/L


• 1,1,2,2-Tetrachloroethane 15-150 ug/L


• Dichlorodifluoromethane 20-100 ug/L


• Tetrachloroethene 10-150 ug/L


• Trichlorofluoromethane 20-120 ug/L


• Toluene 10-120 ug/L


• Vinyl chloride 20-120 ug/L


• 1,1,1-Trichloroethane 10-100 ug/L


• m+p-Xylenes 10-150 ug/L


• o-Xylene 10-150 ug/L


• Total Xylenes 20-300 ug/L


• 1,1,2-Trichloroethane 15-150 ug/L


• 1,2,4-Trimethylbenzene 10-120 ug/L


• 1,3,5-Trimethylbenzene 10-120 ug/L


• MTBE 15-150 ug/L


• Trichloroethene 10-100 ug/L


• 2-Butanone 5-500 ug/L


• Acetonitrile 5-500 ug/L


• Acetone 20-200 ug/L


• Acrylonitrile 5-500 ug/L


• Acrolein 5-500 ug/L


• Vinyl acetate 5-500 ug/L


• Carbon disulfide 5-500 ug/L


• Naphthalene 15-150 ug/L


• Ethylene dibromide 10-120 ug/L


• 1,2-Dibromo-3-chloropropane 15-150 ug/L


• Methyl acetate 5-500 ug/L


• Methyl cyclohexane 20-100 ug/L


• 1,4-Dioxane 20-500 ug/L


• 1,2,4-Trichlorobenzene 15-150 ug/L


• 1,2,3-Trichloropropane 15-150 ug/L


• 1,2,3-Trichlorobenzene 15-150 ug/L


• n-Hexane 10-150 ug/L