EPA Method 507/525 Analyte Mix #1 Back Catalog number: 30082 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79034 Fluorene Price on request 55203 Ammonium- Nitrate-Nitrite in brine Price on request BB-53 2,2',5,6'-Tetrabromobiphenyl, 1.2ml x 50ug/ml, nonane Price on request