標準號：ISO 18757-2003
中文標準名稱：細陶瓷(**陶瓷、**工業陶瓷).利用BET法通過氣體吸收率測定陶瓷粉末的比表面積
英文標準名稱：Fine ceramics (advanced ceramics, advanced technical ceramics) - Determination of specific surface area of ceramic powders by gas adsorption using the BET method
標準類型：Q32
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：Q32
國際標準分類號：81.060.30
適用范圍：This International Standard provides guidelines for the determination of the total specific external and internal surface area of disperse or porous (pore diameter > 2 nm) fine ceramic materials by measuring the amount of physically adsorbed gas according to the method of Brunauer, Emmet and Teller (BET method) [1]. General guidelines of the method are described in ISO 9277. 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 absorbs the measuring gas. NOTE For further details on those subjects please see IUPAC references [2], [3] or the textbook by Gregg and Sing [4].