EPA Method 508 Surrogate Standard Back Catalog number: 19042 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 97797 PAH Standard Price on request 673231 Chloroxuron, 100 µg/ml, Acetonitrile, 5ml Price on request XA13420000AL Fenamiphos, 100µg/mL in Acetonitrile, 1ml Price on request