EPA Method 500 Series Internal Standard #5 Back Catalog number: 30004 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 2127.12-K-IOX10 Arochlor 1248 , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no. 12672-29-6 Price on request 10754.11-100-ME Iopanoic acid,100 µg/mL,MeOH,1mL, Price on request 8641.12-50-NN 1,3-Dichlorodibenzo-p-dioxin,50 µg/mL,n-nonane,1mL, Price on request