This aluminum container can shield sampling tubes. As loaded activated carbon (fiber) are loaded at one side, contamination and travel blank can be reduced. This is suitable for transportation and storage. This container is 22 mm O.D., both end capping (PTFE) is 25 mm O.D., 262 mm length for GL-Tubes, 192 mm for T-DEXII and ATD, 282 mm for Gestel.