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Ophthalmic optics and instruments - Near reading charts
Translate name
STANDARD published on 1.8.2024
Designation standards: ČSN EN ISO 7921
Classification mark: 195025
Catalog number: 519427
Publication date standards: 1.8.2024
SKU: NS-1192945
The number of pages: 24
Approximate weight : 72 g (0.16 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
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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Latest update: 2025-10-19 (Number of items: 2 239 213)
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