[13C12]Dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene

High Boiling Sulfur in Toluene for Diesel Fuel Analysis 1 50 ppm S in sulphur-free Toluene; unit: 1x5mL vials Benzo[b]naphtho[2,1-d]thiophene (0485,16) + Benzo[b]naphtho[2,3-d]thiophene (0484,16) (1:1)

Michigan GRO Standard

Di-iso-nonyl phthalate, 100μg/ml in Isooctane, 5ml