BS EN ISO 7921:2024
Ophthalmic optics and instruments. Near reading charts
| Edition date: |
2024-02-22
In Force
|
|---|---|
| Available languages: | English |
| Summary: | 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. |
| ICS: | |
| CTN: | CH/172/6 - CH/172/6 |
|
International Equivalence |
Identic EN ISO 7921:2024 Identic ISO 7921:2024 |










