EPA Method 548.1 Analyte Back Catalog number: 30077 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10637.12-50-T 1,2,3,4,7,8,9-Heptachlorodibenzofuran Price on request 33441 n-Tetradecane Price on request 72604 Sulfamethoxazole, 1000µg/ml in MeOH, 1ml Price on request