EPA Method 548.1 Internal Standard Back Catalog number: 30078 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673357 Cycloxydim, 100 µg/ml, Acetonitrile, 5ml Price on request 93498 n-Hydrocarbon Standard Price on request 98735 Synthetic Pyrethroids, 1000µg/mL in EA, 1ml Price on request