EPA Method 552 Internal Standard Back Catalog number: 30055 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0243.24-200-T Dibenzo[a,l]pyrene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 191-30-0 Price on request S-4165-SET Aromatics Quantitative Calibration Mixes (without Internal Standard) 5 Analytes, each Wt% as listed in isooctane; unit: 5x10mL, one of each Std. Analyte Analyte Std. 1 Std. 2 Std. 3 Std. Price on request 677832 Ioxynil-octanoate, 10 µg/ml, Isooctane, 10ml Price on request