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Standard Type : Main
Document No : ISO 7921 : 2024
Document Year : 2024
Pages : 8
Edition : 1
Section Volume : Ophthalmic optics and instruments (ISO/TC 172/SC 7.)
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.