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Active standard | Published: 01/08/2024
ČSN EN ISO 7921
Ophthalmic optics and instruments - Near reading charts
Available languages: English
Available design: Print design
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Detail information
Designation: ČSN EN ISO 7921
Publication date: 01/08/2024
Pages: 24
Country: Czech technical standard
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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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