3-COLUMN KIT,SHIM-PACK VP-ODS,150X2.0MM Works With Columns The convenient Shim-pack VP-ODS Three-Column Kit (C18,150 x 2.0 mm) is made from different silica batches for validation of method ruggedness. Columns are supported by a Comprehensive Performance Validation Package to help you meet GLP/GMP needs. This Validation Package includes a Physical Properties Certificate of Compliance,a Chromatographic Performance Certificate of Compliance and a Shim-pack Column Performance Report.