DIN EN ISO 10439-4 E:2010-09 Axial and centrifugal compressors and expansion compressors for the petroleum, petrochemical and natural gas industries Part 4: Expansion compressors (draft)
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
1970DIN EN ISO 10439-4 E:2010-09 Axial and centrifugal compressors and expansion compressors for the petroleum, petrochemical and natural gas industries Part 4: Expansion compressors (draft)