NS EN ISO 20623 Ed. 1 (2004)现行
Petroleum And Related Products - Determination Of The Extreme-pressure And Anti-wear Properties Of Fluids - Four Ball Method (european Conditions)
出版：Norwegian Standards (Norges Standardiseringsforbund)
专家解读视频
Gives procedures for the measurement of the extreme-pressure (EP) and anti-wear properties of lubricating oils and fluids by means of the four ball machine.
NEN EN ISO 20623:2018 - Identical
BS EN ISO 20623:2018 - Identical
SN EN ISO 20623:2004 - Identical
BS EN ISO 20623:2003 - Identical
DIN EN ISO 20623 (2004-05) - Identical
NBN EN ISO 20623:2004 - Identical
NF EN ISO 20623:2004 - Identical
I.S. EN ISO 20623:2004 - Identical
UNI EN ISO 20623:2005 - Identical
UNE EN ISO 20623:2004 - Identical
SS EN ISO 20623 Ed. 1 (2003) - Identical
NEN EN ISO 20623:2004 - Identical
ISO 20623:2003 - Identical
ONORM EN ISO 20623:2004 - Identical
EN ISO 20623:2018 - Identical
