Macherey-Nagel GC Capillary Column PERMABOND CW 20 M-DEG ID: 0.32 mm, film thickness: 0.25 μm length: 25 m

Capillary columns for gas chromatography (GC), polyethylene glycol 20000 Dalton meets USP G16. Polar GC phase tested for determination of diethylene glycol.