In order to ensure that test result is exact,true & reliable,based on analysis of samples random slection,the samples slection method & standardization operation were systemly introduceod.

• 为了保证检验结论准确、真实、可靠，在对取样的科学随机性进行分析阐述的基础上，对施工现场材料检验工作中试样的抽取方法和规范性操作予以系统介绍。