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ISO 23157:2021

Determination of the silanol group content on the surface of fumed silica — Reaction gas chromatographic method

Publication date:   Jul 13, 2021

General information

90.20   Standard under periodical review   Jul 15, 2026

ISO

ISO/TC 256 Pigments, dyestuffs and extenders

International Standard

87.060.10   Pigments and extenders

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Scope

This document specifies a method for the determination of the silanol group content on the surface of fumed silica by reaction gas chromatographic method.

Life cycle

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PUBLISHED
ISO 23157:2021
90.20 Standard under periodical review
Jul 15, 2026