During the SeaDataNet II (SDN) EU-project, a quality control (QC) strategy has been implemented and continuously reviewed aiming at improving the quality of the global dataset and creating the best products. This strategy has been developed in collaboration with MyOcean In-Situ Thematic Assemble Centre (INS-TAC) at regional levels to serve operational and scientific oceanography communities. Temperature and salinity historical data collections were created by sea basins, as aggregated datasets and climatology products, and covering the time period 1900-2013. Those ODV qualified dataset collections are available through the SDN web catalog at http://sextant.ifremer.fr/en/web/seadatanet/. The presentation highlight the quality control strategy processed for the North Atlantic Ocean region.