nonpolar phase; Crossbond dimethyl polysilo x ane General-purpose columns for solvent impurities, PCB congeners (e.g., Aroclor mi x es), simulated distillation, arson accelerants, gases, natural gas odorants, sulfur compounds, essential oils, hydrocarbons, semivolatiles, pesticides, o x ygenates.Long lifetime and very low bleed at high operating temperatures.Equivalent to USP G1, G2, G38 phases. Rtx-1 Cap. Column 30m, 0.32mm ID, 1.00um, 6-pk. This listing is for Pack of 6