BERING SEA - Coast Guard Petty Officer 3rd Class Nick Bellini, left, and Petty Officer 3rd Class John Walton, both machinery technicians, search for a material safety data sheet for 15-W40 oil in MSDS books while underway on the Coast Guard Cutter Bertholf. Bellini and Walton needed the MSDS sheet in order to ship off a sample of the oil for testing. U.S. Coast Guard photo by Petty Officer 3rd Class Charly Hengen.
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