Читать книгу Global Approaches to Environmental Management on Military Training Ranges - Tracey Temple - Страница 36
2.3.3 Theory of sampling
ОглавлениеThe theory of sampling (TOS) is used to develop a sampling protocol. This protocol is dependent on the SQC and the material properties. The TOS is used to determine the appropriate mass, number of increments and types of tools that must be employed. The sampling mass, number of increments and types of acceptable tools are driven by the amount of acceptable error, which in turn is based on the desired confidence determined in the SQC. Sampling errors can broadly be classified into three types: (1) fundamental sampling error, (2) grouping and segregation error, and (3) materialization error. Fortunately, for military bases, research done by CRREL, Envirostat, and Defence Research and Development Canada, Val Cartier (DRDC), has identified the starting point for mass, increments and tools.