Primary Calibration FID (EPH) Rev 1.0 Back Catalog number: 91785 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 93384 Volatile Standard Price on request 11768.12-100-IO 2,3,3',4,5,5',6-Heptachlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request 682180 Chlorimuron-ethyl, 100 µg/ml, Acetonitrile, 5ml Price on request