Benzene and Toluene Calibration Blends Set Back Catalog number: 51113 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended L-PFBS Potassium perfluoro-1-butanesulfonate, 1.2ml x 50ug/ml, methanol Price on request 683731 beta-Cypermethrin, 10.0 µg/ml, Ethyl acetate, 10 Price on request S-4471-20-NN Precition and Recovery (PAR) Standard Solution Dioxin-like PCBs each in 20ng/mL solution in n-nonane; unit: 1x1mL Chiron No. Dioxin-like PCBs PCB No. CAS No. 2006.12 3,3’4,4’-TetraCB PCB-77 [32598-13-3] 2007.12 3,4,4’,5-TetraCB PCB-81 [703 Price on request