EPA Method 8250/8250A Cal Check Cmpds Acids Back Catalog number: 82508 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0417.14-150-CY n-Tetradecane , ?13C: -33.13, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 629-59-4 Price on request 63060 2,3,4,4'-Tetrachlorobiphenyl (60) Price on request 679799 Marbofloxacin, 100 µg/ml, Methanol, 1ml Price on request