Liquid Samplers - Fisher Scientific- Safe Delivery in Liquid Tanker Material Semi ,RNAi, Oligos, Assays, Gene Editing & Gene Synthesis Tools Oligos Tools. Eurofins MWG Operon Oligos ToolSafe Loading/Unloading of Bulk Tankers - YouTube · Produced by the SIA & ESIG, this video gives an introduction to the safe loading and unloading of Bulk Tankers.