. 5 µm particle size. Dimension: L × I.D. 15 cm × 4.6 mm. Application(s): HPLC: suitable. . . Sigma-Aldrich 59140-U SUPELCOSIL LC-ABZ HPLC Column, 4.6mm ID, 15cm Length. Country of Origin : United States. Part Number : 1177M11EA. Pack of : 1.