ISO 18757-2003 细陶瓷(高级陶瓷、高级工业陶瓷).利用BET法通过气体吸收率测定陶瓷粉末的比表面积

标准号：ISO 18757-2003
中文标准名称：细陶瓷(**陶瓷、**工业陶瓷).利用BET法通过气体吸收率测定陶瓷粉末的比表面积
英文标准名称：Fine ceramics (advanced ceramics, advanced technical ceramics) - Determination of specific surface area of ceramic powders by gas adsorption using the BET method
标准类型：Q32
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：Q32
国际标准分类号：81.060.30
适用范围：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].