00F-4252-E0, WAT046980, WAT035876, PSS831912, 227-30017-07, waters chromatography columns, phenomenex chromatography columns, Shimadzu chromatography columns, no packaging boxes, all of which have been re-column effect tests with standard samples. If you are interested, you can send a test report. The column is packed well. If it is not easy to use, you can return the freight fee.