EPA Method 552,552.1,552.2 Internal Std Back Catalog number: 30105 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1330.22-100-IO Dibenz[a,h]anthracene-d14, 100µg/ml in Isooctane, 1ml Price on request 672863 Isoprocarb, 250mg Price on request 2229.12-100-IO 4'-Fluoro-2,4,6-trichlorobiphenyl, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 876009-92-6 Price on request