本欧洲标准描述了一种测定包含夹带空气的硬化混凝土样品中的空气 - 空隙结构的试验方法。通过以下参数描述空气 - 空隙结构，这些参数在第3节中定义。i）总空气含量，ii）空气空隙系统的比表面，iii）间距系数，iv）气孔尺寸分布，v ）微气含量

This European Standard describes a test method for determination of the air- void structure in a hardened concrete sample which contains entrained air. The air-void structure is described by means of the following parameters, which are defined in clause 3. i) Total air content, ii) Specific surface of air void system, iii) Spacing factor, iv) Air-void size distribution, v) Micro air content.