ISO 24509:2019
p
ISO 24509:2019
69766

Abstract  Preview

This document provides a method for estimating minimum legible font size for single characters, but not for words or sentences, in self-luminous or reflected mode, used in documents, products labels, signs, and displays for people at any age and in any viewing condition in which viewing distance, luminance and contrast are varied.

This document applies designing and evaluating legibility of single characters for people at any age who have no pathological disorders in their eyes, but not for people with visual impairments such as low vision. The application is specifically directed to, but not limited to, the cases of printed materials where fixed font size is used.

Applicability of the method to other languages is given in Annex F.


General information 

  •  :  Published
     : 2019-10
  •  : 1
     : 37
  •  : ISO/TC 159/SC 4 Ergonomics of human-system interaction
  •  :
    13.180 Ergonomics

Buy this standard

en
Format Language
std 1 158 PDF + ePub
std 2 158 Paper
  • CHF158

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)

Keep up to date with ISO

Sign up to our newsletter for the latest news, views and product information.