EPA Method 528 Internal Standard Back Catalog number: 93188 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0202.22-200-T Dibenz[a,c]anthracene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 215-58-7 Price on request 92862 Phenols Standard Price on request 50255 COD Calibration Standard Price on request