Composition of Ocean Standard Seawater

Atlantic Seawater is prepared from natural open-ocean water collected from the surface waters of the mid-Atlantic. It is treated with ultra-violet light and filtered to 0.2 microns to minimise microbial contamination. However this product is not classified as sterile.
The chemical composition of Atlantic Seawater will be similar to published data for open-ocean seawater (see example table below) although the concentrations of some of the minor elements may vary as a result of processing and storage.

Atlantic SW Composition