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ISO/WD 23157-2

Determination of the silanol group content on the surface of fumed silica — Part 2: Thermogravimetric analysis method

General information

20.60     23 jan 2026

ISO

ISO/TC 256

International Standard

Scope

This document applies to the determination of the silanol content of hydrophilic fumed silica by thermogravimetric analysis.

Life cycle

NOW

IN_DEVELOPMENT
ISO/WD 23157-2
20.60 Close of comment period
23 jan 2026