UNI EN ISO 643:2006被替代
Steels - Micrographic Determination Of The Apparent Grain Size
出版：Italian Standards
专家解读视频
Provides a micrographic method of determining apparent ferritic or austenitic grain size in steels. It also describes the methods of revealing grain boundaries and of estimating the mean grain size of specimens with unimodal size distribution.
Supersedes UNI 3245. (12/2006)
ONORM EN ISO 643:2003 - Identical
NEN EN ISO 643:2003 - Identical
ISO 643:2003 - Identical
SS EN ISO 643 Ed. 1 (2003) - Identical
UNE EN ISO 643:2004 - Identical
NS EN ISO 643 Ed. 1 (2003) - Identical
I.S. EN ISO 643:2003 - Identical
NF EN ISO 643:2003 - Identical
NBN EN ISO 643:2003 - Identical
DIN EN ISO 643 (2003-09) - Identical
BS EN ISO 643:2003 - Identical
SN EN ISO 643:2003 - Identical
SS EN ISO 643 Ed. 2 (2013) - Identical
NEN EN ISO 643:2013 - Identical
