The measure method of specific surface area and microparticle diameter of colloidal silica by titration with sodium hydroxide was introduced in this paper, which is a simple method.

本文介绍一种简单、方便、快捷的测定胶体硅微粒比表面积、粒径的方法——碱滴定法，适合工厂及研究中使用。

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Specific surface area, resistivity, and distribution of pore diameter of air electrode were measured. Polarization curve and operating performance of air electrode have been tested.

测试比表面积、电阻率、孔径分布情况、空气电极的极化曲线、放电性能。

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