PCB No. 157, 10µg/ml in Isooctane, 10ml Back Catalog number: L20015700IO Availability: In the manufacturer's stock Price on request - + Recommended DF-IS-A Mass-Labelled PCDD Internal Standard Solution, 1.2ml x 1ug/ml, nonane Price on request 8648.12-50-NN 1,2,4,6,7-Pentachlorodibenzo-p-dioxin,50 µg/mL,n-nonane,1mL, Price on request 51147 Fuel Oil Degradation Standard Price on request