EN ISO 10438-4:2007 Petroleum, petrochemical and natural gas industries - Lubrication, shaft-sealing and control-oil systems and auxiliaries - Part 4: Self-acting gas seal support systems
ISO 10438-1:2007 Petroleum, petrochemical and natural gas industries - Lubrication, shaft-sealing and control-oil systems and auxiliaries - Part 1: General requirements
ISO 15649:2001 Petroleum and natural gas industries - Piping
EN ISO 10438-4:2007 history
2007EN ISO 10438-4:2007 Petroleum, petrochemical and natural gas industries - Lubrication, shaft-sealing and control-oil systems and auxiliaries - Part 4: Self-acting gas seal support systems
2003EN ISO 10438-4:2003 Petroleum, petrochemical and natural gas industries - Lubrication, shaft-sealing and control-oil systems and auxiliaries - Part 4: Self-acting gas seal support systems ISO 10438-4:2003