Primary Calibration FID (EPH) Rev 1.0 Back Catalog number: 91785 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended IN155 Erbium Oxide (Er2O3) Price on request 92805 Gas Internal/Surrogate Standard Price on request S-4241-2K-IPX5 EPA 8040 Surrogate Standard S-4241 2mg/mL each in isopropanol, 1 mL, 5 x 1mL, 5mL 2-Fluorophenol 2,4,6-Tribromophenol Price on request