Name: METHOD 1613 PRECISION AND Isotope :RECOVERY STANDARD SOLUTION Catalog Number :EDF-7999 Quantity :200 UL Formula :no formula is available. Categories :Dioxin & Furan Mixtures (DFM), US EPA Method Mixtures (E) 2,3,7,8-TetraCDD 40 ng/mL1,2,3,6,7,8