EPA Method 507/525 Analyte Mix #6 Back Catalog number: 30087 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678026 4-n-Octylphenol-mono-ethoxylate, 10mg Price on request 673533 4,4'-DDE, 10.0 µg/ml, Ethyl acetate, 10ml Price on request 97986 Hydrocarbon Mix #2 Price on request