EPA Method 500 Series Internal Std #4 Back Catalog number: 30003 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4814-05-AN MIX 11 13c Aflatoxins Price on request 677285 Folpet, 100 µg/ml, Cyclohexane, 1ml Price on request 676425 D5-PCB 116, 10.0 µg/ml, Isooctane, 1ml Price on request