DIN EN ISO 18757-2006
精密陶瓷(高級陶瓷、高級工業陶瓷).BET法利用氣體吸附來測定陶瓷粉末的比表面積
Fine ceramics (advanced ceramics, advanced technical ceramics) - Determination of specific surface area of ceramic powders by gas adsorption using the BET method (ISO 18757:2003); English version of DIN EN ISO 18757:2006
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- 標準號
- DIN EN ISO 18757-2006
- 發布日期
- 2006年01月
- 實施日期
- 廢止日期
- 無
- 中國標準分類號
- Q32
- 國際標準分類號
- 81.060.30
- 發布單位
- DE-DIN
- 引用標準
- ISO 9277-1995
- 被代替標準
- DIN EN ISO 18757-2005 DIN EN 725-6-1996
- 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].