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在少数情况下,设置人工取样仍是需要的,或者是比较好的。而在许多情况下,采取原矿或选矿厂的给矿是靠一种机组,即在一台或两台韦津(Vezin)取样机后,跟着配备一种自动取样机。在多数情况下,单一的自动取样机是用于流动产品的取样。对于价值较高的矿石,都趋向于采取较为量大的样品。在铀矿的取样中,已经采用了技术较新的X-射线分析仪,它能在取样两分钟后很快地讯出品位来。通过大约一百个选矿厂的实际调查,发现样品采取的百分率是很不一致的。其大致范围
In a few cases, setting up manual sampling is still needed, or better. In many cases, the ore taken from a raw ore or a concentrator is supplied by a unit, which is followed by one or two Vezin samplers followed by an autosampler. In most cases, a single autosampler is used for sampling of mobile products. For higher value ore, tend to take a relatively large sample. In uranium ore sampling, a technologically newer X-ray analyzer has been used that quickly reveals the grade after two minutes of sampling. An actual survey of about 100 concentrators found that the percentages taken by the samples were very inconsistent. Its approximate range