EPA Method 500 Series Internal Standard #5 Back Catalog number: 30004 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 675208 Amidithion, 10.0 µg/ml, Ethyl acetate, 5ml Price on request 2004.12-10MG 2,2',4,4',5,5'-Hexachlorobiphenyl, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 35065-27-1 Price on request 673587 Fenitrothion, 10.0 µg/ml, Ethyl acetate, 10ml Price on request