EPA Method 525 Internals & Surrogates Back Catalog number: 95227 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 93854 Organophosphorous Pesticides Price on request 79551 Dicamba, 1000µg/ml in Acetonitrile, 1ml Price on request 677426 2-Chloroethanol, 1ml Price on request