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ISO 21575:2026

Raw optical glass — Powder test method for the water resistance of optical glass — Test method and classification

Publication date:   Jan 22, 2026

General information

60.60   Standard published   Jan 22, 2026

ISO

ISO/TC 172/SC 3 Optical materials and components

International Standard

37.020   Optical equipment

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Scope

This document specifies the general procedures of the powder test method for the water resistance of optical glass.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 21575:2018

NOW

PUBLISHED
ISO 21575:2026
60.60 Standard published
Jan 22, 2026