EPA Method 548.1 Analyte Back Catalog number: 30077 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 98654 PAH Standard (50 ppm) Price on request 684366 Buturon, 100 µg/ml, Acetonitrile, 5ml Price on request XA17305000AL Terbuthylazine-2-hydroxy, 100 ng/µl, 1ml Price on request