EPA Method 624 Internal / Surrogate Standard Back Catalog number: 92559 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3594.55-1MG Chlorophyll B, neat, Solvent-neat, Unit 1mg, # of units-1, Cas.no. 519-62-0 Price on request 676762 Flupyrsulfuron-methyl, 100 µg/ml, Acetonitrile, Price on request 679252 Flutolanil, 100mg Price on request