2009EN 13942:2009/AC:2009 Petroleum and natural gas industries - Pipeline transportation systems - Pipeline valves (ISO 14313:2007 modified/Cor 1:2009)
2009EN 13942:2009 Petroleum and natural gas industries - Pipeline transportation systems - Pipeline valves (Incorporating corrigendum May 2009)
2003EN 13942:2003 Petroleum and natural gas industries Pipeline transportation Pipeline valves