SS EN ISO 8596 Ed. 2 (2009)现行
Ophthalmic Optics - Visual Acuity Testing - Standard Optotype And Its Presentation
出版：Standardiserings-Kommissionen I Sverige
专家解读视频
Defines a range of Landolt ring optotypes and describes a method for measuring distance visual acuity under daylight conditions for the purposes of certification or licensing.
BS EN ISO 8596:2009 - Identical
NEN EN ISO 8596:2009 - Identical
I.S. EN ISO 8596:2009 - Identical
NEN EN ISO 8596:2018 - Identical
EN ISO 8596:2018 - Identical
BS EN ISO 8596:2018 - Identical
NF EN ISO 8596:2018 - Identical
ONORM EN ISO 8596:2018 - Identical
NS EN ISO 8596:2018 - Identical
UNE EN ISO 8596:1996 - Identical
DIN EN ISO 8596 (2009-10) - Identical
EN ISO 8596:2009 - Identical
SN EN ISO 8596:1996 - Identical
ONORM EN ISO 8596:1996 - Identical
SN EN ISO 8596:2009 - Identical
ONORM EN ISO 8596:2009 - Identical
UNE EN ISO 8596:2010 - Identical
NS EN ISO 8596:2009 - Identical
NBN EN ISO 8596:2009 - Identical
UNI EN ISO 8596:2009 - Identical
NF EN ISO 8596:2009 - Identical
