Primary Calibration FID (EPH) Rev 1.0 Back Catalog number: 91785 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4035-0-IOX5 Diphenylsulfide in isooctane, Blank Units: 5x1mL ampoules Price on request 96339 Toluene-d8 Price on request 73302 3-Methylbenzothiophene Price on request