BS EN ISO 17892-3:2015规定了土壤颗粒密度的测定方法。ISO 17892的本部分适用于室内土壤颗粒密度的测定 岩土工程勘察的范围，并介绍了两种方法，一种是液体比重瓶法 置换法和气体置换比重瓶法。ISO 17892本部分所述的液体比重瓶法适用于含有颗粒的土壤类型 尺寸小于约4mm，或为满足此要求而压碎的土壤。更大的比重瓶用于测量压力 粗糙的材料。适用于气体比重瓶测试的土壤粒度受以下因素限制: 所用特定气体比重瓶的样本容器尺寸。注1:ISO 17892的本部分满足土壤颗粒密度测定的要求 根据EN 1997-1和EN 1997-2进行岩土工程勘察和试验。注2:孔隙水中溶解盐的存在可能会影响这些试验的结果。技术 可提供溶解盐补偿，但不在本标准范围内。交叉引用:ISO 17892？那么14688年呢？1 EN 1997-1 EN 1997-2部分取代BS 1377-2:1990购买本文件时所有可用的当前修订版均包含在购买本文件中。

BS EN ISO 17892-3:2015 specifies methods for the determination of the particle density of soils.This part of ISO 17892 is applicable to the laboratory determination of the particle density of soil within the scope of geotechnical investigations, and describes two methods, a pycnometer method by fluid displacement and a pycnometer method by gas displacement.The fluid pycnometer method described in this part of ISO 17892 applies to soil types with particle sizes under about 4 mm, or soils crushed to meet this requirement. Larger pycnometers are used for coarser materials. The particle size of soils suitable for testing in the gas pycnometer is limited by the dimensions of the specimen container of the particular gas pycnometer being used.NOTE 1 This part of ISO 17892 fulfils the requirements of the determination of particle density of soils for geotechnical investigation and testing in accordance with EN 1997-1 and EN 1997-2.NOTE 2 The presence of dissolved salts in the pore water can affect the results of these tests. Techniques for compensating for dissolved salts are available but are beyond the scope of this standard.Cross References:ISO 17892?1ISO 14688?1EN 1997-1EN 1997-2Partially replaces BS 1377-2:1990All current amendments available at time of purchase are included with the purchase of this document.