EPA Method 8040 - Surrogate Standard Back Catalog number: 80403 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 92286 Pesticide Mix #1 Price on request 673786 Diflufenican, 10 µg/ml, Ethyl acetate, 10ml Price on request 79122 n-Nonane Price on request