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API Std 599Metal Plug Valves-Flanged, Threaded and Welding Ends, Sixth Editionstandard by American Petroleum Institute, 10/01/2007
API Std 599Metal Plug Valves - Flanged, Threaded and Welding Endsstandard by American Petroleum Institute, 08/01/2002
API STD 598 ErrataErrata 1 - Valve Inspection and Testingstandard by American Petroleum Institute, 08/22/1997
API Std 598Valve Inspection and Testing, Tenth Editionstandard by American Petroleum Institute, 10/01/2016
API Std 598Valve Inspection and Testing, Ninth Editionstandard by American Petroleum Institute, 09/01/2009
API STD 598Valve Inspection and Testingstandard by American Petroleum Institute, 10/01/1996
API Std 598Valve Inspection and Testingstandard by American Petroleum Institute, 05/01/2004
API Std 598Valve Inspection and Testing, Eleventh Editionstandard by American Petroleum Institute, 02/01/2023
API Std 598Valve Inspection and Testing, Eleventh Editionstandard by American Petroleum Institute, 02/01/2023
API Std 594Check Valves: Flanged, Lug, Wafer, and Butt-welding, Eighth Editionstandard by American Petroleum Institute, 07/01/2017
API Std 594Check Valves: Flanged, Lug, Wafer and Butt-welding, 7th Editionstandard by American Petroleum Institute, 09/01/2010
API Std 594Check Valves: Flanged, Lug, Wafer and Butt-welding, 6th Editionstandard by American Petroleum Institute, 09/01/2004