I.S. EN ISO 10438-4:2004被替代
Petroleum, Petrochemical And Natural Gas Industries - Lubrication, Shaft-sealing And Control-oil Systems And Auxiliaries - Part 4: Self-acting Gas Seal Support Systems
出版：National Standards Authority of Ireland
专家解读视频
Describes requirements for support systems for self acting gas seals (dry gas seals) as described in ISO 10439, for use in the petroleum, petrochemical and natural gas industries as well as in other industries by agreement.
ONORM EN ISO 10438-4:2004 - Identical
NEN EN ISO 10438-4:2004 - Identical
SS EN ISO 10438-4 Ed. 1 (2004) - Identical
NS EN ISO 10438-4 Ed. 1 (2004) - Identical
UNI EN ISO 10438-4:2004 - Identical
NBN EN ISO 10438-4:2004 - Identical
NF EN ISO 10438-4:2004 - Identical
DIN EN ISO 10438-4 (2005-07) - Identical
BS EN ISO 10438-4:2003 - Identical
ISO 10438-4:2007 - Identical
