EPA Method 528 Internal Standard Back Catalog number: 93188 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 54516 Acetic Acid (C2H4O2) Price on request 92837 1-Chloro-2-fluorobenzene Price on request 0238.24-200-T Naphtho[2,3-e]pyrene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 193-09-9 Price on request