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ISO 18757:2003

Fine ceramics (advanced ceramics, advanced technical ceramics) — Determination of specific surface area of ceramic powders by gas adsorption using the BET method

Dec 3, 2003

General information

90.93     Feb 26, 2025

ISO

ISO/TC 206

International Standard

81.060.30  

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Scope

ISO 18757:2003 provides guidelines for the determination of the total specific external and internal surface area of disperse or porous (pore diameter greater than 2 nm) fine ceramic materials by measuring the amount of physically adsorbed gas according to the method of Brunauer, Emmett and Teller (BET method). This International Standard only focuses on specific details relevant to fine ceramic materials. It should further be noted that the BET method cannot be applied to type I isotherms (microporous materials or chemisorption behaviour) or when the solid adsorbs the measuring gas.

Life cycle

NOW

PUBLISHED
ISO 18757:2003
90.93 Standard confirmed
Feb 26, 2025