NS EN ISO 8597 Ed. 1 (1996)现行
Optics And Optical Instruments - Visual Acuity Testing - Method Of Correlating Optotypes
出版：Norwegian Standards (Norges Standardiseringsforbund)
专家解读视频
Gives a method of correlation between a given set of optotypes and the standard optotype (Landolt ring) specified by ISO 8596.
UNE EN ISO 8597:1996 - Identical
EN ISO 8597:1996 - Identical
SS EN ISO 8597 Ed. 1 (1996) - Identical
ISO 8597:1994 - Identical
NF EN ISO 8597:1996 - Identical
UNI EN ISO 8597:1996 - Identical
I.S. EN ISO 8597:1996 - Identical
NBN EN ISO 8597:1996 - Identical
ONORM EN ISO 8597:1996 - Identical
DIN EN ISO 8597 (1996-05) - Identical
BS EN ISO 8597:1996 - Identical
NEN EN ISO 8597:1996 - Identical
SN EN ISO 8597:1996 - Identical
