The KS-802 column has a polystyrene divinylbenzene (PSDVB) base with a sulfonate functional group in the sodium form. This phase is used for the analysis of saccharides by a combination of ligand exchange and size exclusion, with 100% water as the mobile phase. Fulfills USP L22 and L58 requirements. Exclusion limit 10,000 Da, shipping solvent: water. Guard column 220-91524-84 and coupler are recommended. Use 220-91525-97 for stainless steel with PEEK fittings, 220-91524-99 (1-piece, double ended PEEK,) or 220-91524-98 (PEEK tube and fittings.)