EPA Method 8150A Back Catalog number: 83599 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C-063N 2,3,4',5-Tetrachlorobiphenyl, 5mg Price on request 90686 bis(2-Chloroisopropyl) ether Price on request 679824 Trimethoprim, 100 µg/ml, Methanol, 1ml Price on request