EPA Method 8240A Calibration Check Compounds Back Catalog number: 82412 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended BB-75 2,4,4',6-Tetrabromobiphenyl, 1.2ml x 50ug/ml, nonane Price on request 682033 Tetradecanoic acid-methyl ester, 1ml Price on request 675977 Primisulfuron-methyl, 100 µg/ml, Acetonitrile, 5 Price on request