EPA Method 507 Analyte Mix #1 Back Catalog number: 30182 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677014 Formothion, 10.0 µg/ml, Cyclohexane, 10ml Price on request 31104 gamma-BHC Price on request DF-ST-B Native PCDD/PCDF Solution/Mixture, 1.2ml, nonane Price on request