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ISO/DTR 22572

Ophthalmic optics — Spectacle lenses — Measurement of refractive index

General information

50.20   Proof sent to secretariat or FDIS ballot initiated: 8 weeks   Aug 4, 2026

ISO

ISO/TC 172/SC 7 Ophthalmic optics and instruments

Technical Report

11.040.70   Ophthalmic equipment

Life cycle

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IN_DEVELOPMENT
ISO/DTR 22572
50.20 Proof sent to secretariat or FDIS ballot initiated: 8 weeks
Aug 4, 2026