GC/MS Calibration Standard Mix #1 Back Catalog number: 43027 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1348.20-100-TX10 Benzo[b]fluoranthene-d12, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-10, Cas.no. 93951-98-5 Price on request 95453 PCB Congeners & Hexachlorobenzene Mix #4 Price on request 678273 Chlorbromuron, 100 µg/ml, Acetonitrile, 5ml Price on request