EPA Method 502.2 Internal Standard Back Catalog number: 91703 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 95650 8270 Add-On Mix Price on request 2032.12-50-NN 2-Chlorodibenzo-p-dioxin,50 µg/mL,n-nonane,1mL, Price on request 10081.13-50-T Dechlorane 604 Component A, 50µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 34571-16-9 Price on request