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ÖNORM EN ISO 8597:1996-09

Действует
Optics and optical instruments - Visual acuity testing - Method of correlating optotypes (ISO 8597:1994, including Technical Corrigendum 1:1995)
This International Standard specifies a method of correlation
between a given set of optotypes and the Standard optotype (Landolt ring) specified by ISO 8596.
Diese Norm legt ein Verfahren zum Anschluss eines vorgegebenen Satzes von Sehzeichen fest.
ICS
11.040.70 Ophthalmic. Including ophthalmic implants, glasses, contact lenses and their cleaning products / Офтальмологическое оборудование