GB/T 25945-2010 in English

《GB/T 25945-2010铝土矿 取样程序》由TC243（全国有色金属标准化技术委员会）归口，TC243SC1（全国有色金属标准化技术委员会轻金属分会）执行，主管部门为中国有色金属工业协会。

Scope

This standard specifies the necessary conditions for sampling bauxite, taking aggregate samples for sample preparation from flowing ore streams and at rest, including on restrained conveyor belts. Sampling on a restraint conveyor is the reference method of sample collection compared to other sampling procedures. Sampling from mobile streams is the preferred method. Static sampling should only be considered when it is not possible to sample from a mobile stream. The static sampling procedure specified in this standard is intended only to minimize some sampling errors. This standard applies to sampling of all mobile bauxite streams. The recommended procedure may not be suitable for some extreme segregation situations, such as very wet sticky materials, or very dry materials prone to dust generation. In this case it may be necessary to switch to constrained transport upsampling.