NS EN ISO 10438-4 Ed. 1 (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：Norwegian Standards (Norges Standardiseringsforbund)
专家解读视频
Describes requirements for support systems for selfacting gas seals (dry gas seals) as described in ISO10439, for use in the petroleum, petrochemical and naturalgas industries as well as in other industries by agreement.
BS EN ISO 10438-4:2003 - Identical
DIN EN ISO 10438-4 (2005-07) - Identical
NF EN ISO 10438-4:2004 - Identical
NBN EN ISO 10438-4:2004 - Identical
I.S. EN ISO 10438-4:2004 - Identical
SS EN ISO 10438-4 Ed. 1 (2004) - Identical
NEN EN ISO 10438-4:2004 - Identical
UNI EN ISO 10438-4:2004 - Identical
ONORM EN ISO 10438-4:2004 - Identical
ISO 10438-4:2007 - Identical
