EPA Method 502.2 Internal Standard Back Catalog number: 91703 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8645.12-50-T 1,3,8,9-Tetrachlorodibenzo-p-dioxin, 50µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. Price on request PFRS-030S Resorcinol bis(diphenyl phosphate), 100µg/ml in Toluene, 1ml Price on request 8916.14 2-Methyl-3,3',4,4'-tetrachlorodiphenylmethane, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. Price on request