ISO 18852:2005 橡胶组分成分 多点氮表面积 (NSA) 和统计学厚度表面积的测定 (STSA)
标准编号:ISO 18852:2005
中文名称:橡胶组分成分 多点氮表面积 (NSA) 和统计学厚度表面积的测定 (STSA)
英文名称:Rubber compounding ingredients — Determination of multipoint nitrogen surface area (NSA) and statistical thickness surface area (STSA)
发布日期:2005-05
标准范围
ISO 18852:2005规定了一种基于Brunauer、Emmett和Teller(BET)气体吸附理论,使用多点测定法测定炭黑和其他橡胶复合成分(如二氧化硅和氧化锌)的氮表面积(NSA)的方法。本试验方法规定了样品制备和处理、仪器校准、实验数据所需的准确度和精密度,以及根据获得的数据计算表面积结果。还给出了计算统计厚度表面积(STSA)的程序,也就是外表面积。规定的试验方法使用自动体积静态真空装置,表面积根据单层测量使用BET理论计算。
ISO 18852:2005 specifies a method for the determination of the nitrogen surface area (NSA) of carbon blacks and other rubber compounding ingredients, like silicas and zinc oxides, based on the Brunauer, Emmett and Teller (BET) theory of gas adsorption using a multipoint determination. This test method specifies the sample preparation and treatment, instrument calibration, required accuracy and precision of the experimental data, and calculation of the surface area results from the data obtained. Also given is a procedure for calculating the statistical thickness surface area (STSA), otherwise known as the external surface area.The test method specified uses an automatic volumetric static-vacuum apparatus, the surface area being calculated using the BET theory based on monolayer measurements.
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