OS GSO ISO 7921:2025
ISO 7921:2024
Omani Standard
Current Edition
·
Approved on
14 October 2025
Ophthalmic optics and instruments — Near reading charts
OS GSO ISO 7921:2025 Files
English
8 Pages
Current Edition
Reference Language
OMR
30.98
OS GSO ISO 7921:2025 Scope
This document applies to printed, projected, and electronic displays of high-contrast text that are designed for assessment and measurement of near reading acuity under photopic conditions.
The definitions and requirements of this document apply to the Latin alphabet.
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