EPA Method 552 Internal Standard Back Catalog number: 30055 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 29403-10CY10 Pesticides - Mix 18, 10 µg/ml in Cyclohexan, 10ml Price on request 673313 Furathiocarb, 100 µg/ml, Acetonitrile, 5ml Price on request 94193 Supplemental PAH Standard Price on request