PSA-C18-Mix 3 Back Catalog number: 675009 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 91899 EPA Method 507/8085 Pesticide Mix #1 Price on request 673266 Disulfoton-sulfone, 10.0 µg/ml, Acetonitrile, 10 Price on request 10407.4-K-ME O,O-Diethyldithiophosphate, ammonium salt Price on request