EPA Method 524.3 - Internal Standard Back Catalog number: 95488 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended H-184S Picene, 50 µg/mL in Toluene, 1ml Price on request 680375 Ormetoprim, 250mg Price on request MET-11755AM1-1ML Dimethenamid ESA sodium salt, 100µg/ml in MeOH,1ml Price on request