
Optics and optical instruments - Visual acuity testing - Method of correlating optotypes
STANDARD published on 1.12.1997
    
        Designation standards: ČSN EN ISO 8597
                Classification mark:  195003
                
                Catalog number:  50568
                
                
                Note:    WITHDRAWN
               
                Publication date standards:  1.12.1997
        Approximate weight : 24 g (0.05 lbs)
        Country:          Czech technical standard
        Category: Technical standards ČSN