DIN EN ISO 10439-4:2015-05 Petroleum, petrochemical and natural gas industries - Axial and centrifugal compressors and expander-compressors - Part 4: Expander-compressors (ISO 10439-4:2015); English version EN ISO 10439-4:2015
2015DIN EN ISO 10439-4:2015-05 Petroleum, petrochemical and natural gas industries - Axial and centrifugal compressors and expander-compressors - Part 4: Expander-compressors (ISO 10439-4:2015); English version EN ISO 10439-4:2015
2015DIN EN ISO 10439-4:2015 Petroleum, petrochemical and natural gas industries - Axial and centrifugal compressors and expander-compressors - Part 4: Expander-compressors (ISO 10439-4:2015); English version EN ISO 10439-4:2015
2004DIN EN ISO 10439:2004 Petroleum, chemical and lgas service industries - Centrifugal compressors (ISO 10439:2002); German and English version EN ISO 10439:2002