Capillary columns for GC Features Polyethylene glycol 20 000 Da · USP G16 Polar phase Recommended for solvent analysis and alcohols, suitable for aqueous solutions Similar phases: OPTIMA WAX, DB-Wax, Supelcowax, HP-Wax, HP-INNOWAX, Rtx-Wax, CP-Wax 52 CB, Stabilwax, 007-CW, BP20, AT-Wax, ZB-Wax Max. temperature for isothermal operation 220 C Max. temperature for short isotherms in a temperature program 240 C 0.53 mm ID columns: Max. temperatures 200 and 220 C, resp.