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ČSN is a protected designation of Czech national technical standards.
Optics and optical instruments - Test lenses for calibration of focimeters (ISO 9342:1996)
WITHDRAWN published on 1.4.1999
Selected format:Optics and optical instruments - Test lenses for calibration of focimeters - Part 1: Test lenses for focimeters used for measuring spectacle lenses
WITHDRAWN published on 1.10.2005
Selected format:Ophthalmic instruments - Trial case lenses
Standard published on 1.2.2010
Selected format:Ophthalmic instruments - Trial case lenses (ISO 9801:1997)
WITHDRAWN published on 1.2.2000
Selected format:Ophthalmic instruments - Refractor heads
Standard published on 1.8.2013
Selected format:Ophthalmic instruments - Refractor heads (ISO 10341:2009)
WITHDRAWN published on 1.11.2009
Selected format:Ophthalmic instruments - Refractor heads (ISO 10341:1997)
WITHDRAWN published on 1.2.2000
Selected format:Ophthalmic instruments - Eye refractometers (ISO 10342:2010)
Standard published on 1.11.2010
Selected format:Ophthalmic instruments - Eye refractometers
WITHDRAWN published on 1.11.2003
Selected format:Ophthalmic instruments - Eye refractometers (ISO 10342:1997)
WITHDRAWN published on 1.2.2000
Selected format:Latest update: 2026-08-06 (Number of items: 2 291 512)
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