ISO 9385:1990

Glass and glass-ceramics — Knoop hardness test

Publication date:   May 3, 1990

General information

90.20   Standard under periodical review   Jul 15, 2026

ISO

ISO/TC 172/SC 3 Optical materials and components

International Standard

81.060.01   Ceramics in general | 81.040.01   Glass in general

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PUBLISHED
ISO 9385:1990
90.20 Standard under periodical review
Jul 15, 2026