BS 4359-4-1995 粉末表面系数的测定.第4部分:使用气体表面吸附技术测定金属表面积推荐方法

标准号：BS 4359-4-1995
中文标准名称：粉末表面系数的测定.第4部分:使用气体表面吸附技术测定金属表面积推荐方法
英文标准名称：Determination of the specific surface area of powders - Recommendations for methods of determination of metal surface area using gas adsorption techniques
标准类型：H16
发布日期：1995/4/15 12:00:00
实施日期：1995/4/15 12:00:00
中国标准分类号：H16
国际标准分类号：77.160
适用范围：This Part of BS 4359 describes recommended methods for the determination of metal surface area using gas adsorption. They are suitable for supported monometallic catalysts where the metal surface area differs from the total surface area. These methods may also be suitable for other metal catalysts, such as some Raney materials. Specific recommendations are given for the determination of metal surface area of nickel, palladium, platinum and copper. Information on the extension of these methods to other metals in Groups VIII and IB of the periodic table is given in annex A. Recommendations are made regarding the most suitable gas and test methods for a given metal/support combination. Both chemisorption methods and those which employ surface reaction (or titration) are described. Volumetric or flow techniques may be used to determine the amount of gas chemisorbed. Recommendations are given to correct for any reversible adsorption detected using the volumetric technique.