Primary Calibration FID (EPH) Rev 1.0 Back Catalog number: 91785 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2590.6-10MG Perfluorohexanoic acid Price on request 676879 2,4-D-butyl ester, 250mg Price on request 0201.18-10MG Benz[a]anthracene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 56-55-3 Price on request