EPA Method 8330 - Calibration Mix #2 Back Catalog number: 83526 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 93233 Method 4 Standard 1 Price on request 73935 4-Acetamidoantipyrine, 1000µg/ml in MeOH, 1ml Price on request 673650 Paraoxon-methyl, 100 µg/ml, Ethyl acetate, 5ml Price on request