Horseshoe-shaped test piece used to detect the susceptibility of a material to stress corrosion cracking.
A document required on merchandise imported into the United States.
are registered in the United States and are subject to additional U.S. laws and regulations to which foreign-flag vessels are not. They must be owned by U.S. citizens, corporations, or governments and must be crewed mainly by U.S. citizens.
Upper Explosive Limit
Upper Flammable Limit
Ultra High Frequency. (300-3000 MHz) The apparatus using these frequencies are the best one for internal communications on steel ships as they are not hampered by steel bulkheads.
Ultra High Pressure
United Kingdom Mutual
United Kingdom Association of Private Terminal Operators
UK Harbour Masters Association
United Kingdom forecast model. (Available via AccuWeather.com Professional.)
UK Major Ports Group
UK Pilots Association (Marine).