EPA Method 622 / 8141 - Analytes Back Catalog number: 90378 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1719.15-500-IO 4-Methylphenanthrene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 832-64-4 Price on request 52011A Calibration Standard Mix 2 Price on request 673186 Aclonifen, 10.0 µg/ml, Acetonitrile, 10ml Price on request