GC/MS Calibration Standard Mix #2 Back Catalog number: 43028 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2125.12-100-IOX10 Arochlor 1221 , 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no. 11104-28-2 Price on request 70545 Benefin Price on request 19362 EPA Method 525 - PAH Standard Price on request