NS EN ISO 7491 Ed. 2 (2000)现行
Dental Materials - Determination Of Colour Stability
出版：Norwegian Standards (Norges Standardiseringsforbund)
专家解读视频
Defines a procedure for the determination of the colour stability of dental materials after exposure to light and water.
SN EN ISO 7491:2000 - Identical
BS EN ISO 7491:2000 - Identical
DIN EN ISO 7491 (2001-01) - Identical
ONORM EN ISO 7491:2000 - Identical
NF EN ISO 7491:2000 - Identical
NBN EN ISO 7491:2000 - Identical
UNI EN ISO 7491:2001 - Identical
I.S. EN ISO 7491:2000 - Identical
UNE EN ISO 7491:2001 - Identical
ISO 7491:2000 - Identical
SS EN ISO 7491 Ed. 1 (2000) - Identical
NEN EN ISO 7491:2000 - Identical
