Primary Calibration FID (EPH) Rev 1.0 Back Catalog number: 91785 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679749 Estrone, 250mg Price on request 675809 Ethephon, 250mg Price on request 44P-DMDT p,p'-Methoxychlor, 1.2mL x 100ug/mL, nonane Price on request